<?php

namespace Modules\Antenatal\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Streamline\Models\Alert;
use Streamline\Models\Allergy;
use Streamline\Models\Patient;
use Streamline\Models\PatientDocument;
use Streamline\Models\PatientEpisode;
use Streamline\Models\Triage;
use Streamline\Models\Treatment;
use Streamline\Models\OrderedProcedure;
use Streamline\Models\OrderedInvestigation;
use Streamline\Models\OrderedSundry;
use Streamline\Models\InvestigationResults;
use Streamline\Models\AnteNatalClinicRegistration;
use Streamline\Models\ObstetricHistory;
use Streamline\Models\AnteNatalClinicBloodTransfusion;
use Streamline\Models\AncVdrlHiv;
use Streamline\Models\AnteNatalClinicLie;
use Streamline\Models\AnteNatalClinicPresentation;
use Streamline\Models\AnteNatalClinicPosition;
use Streamline\Models\AnteNatalClinicEngagement;
use Streamline\Models\AnteNatalClinicFollowup;
use Streamline\Models\HeartRegularity;
use Streamline\Models\InpatientInfo;
use Streamline\Models\FamilyPlanningMethod;
use Streamline\Models\CaesarianSection;
use Streamline\Models\GenderViolence; 
use Streamline\Models\UterusOperation;
use Streamline\Models\AntenatalMotherHistory;
use Streamline\Models\AncDeliveryPlan;
use Streamline\Models\Consultation;
use Streamline\Models\ChronicPatient;
use Streamline\Models\Drug;
use Streamline\Models\Surgery;
use Streamline\Models\Procedure;
use Carbon\Carbon;
use Streamline\Models\Investigation;
use Barryvdh\Snappy\Facades\SnappyPdf;
use Streamline\Models\Clinic;
class AnteNatalClinicController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth');
    }
    public static $obstetric_outcomes = ['' => "-- Select--", '1' => "Fresh SB", '2' => "Live Multiple", '3' => "Live Singleton", '4' => "Mascerated SB", '5' => "Spontaneous Abortion"];
    public static $child_immunisation_status = ['' => "-- Select--", '1' => "Not Started", '2' => "Ongoing", '3' => "Completed"];
    public static $menses_amount = ['' => "-- Select--", '1' => "Heavy", '2' => "Normal", '3' => "Completed"];
    public static $family_history = ['1' => "Diabetes", '2' => "Sickel cell", '3' => "Hypertension", '4' => "Twins", '5' => "Others"];
    public static $fractures = ['1' => "Pelvis", '2' => "Spine", '3' => "Femur"];
    public static $obs_gyn = ['1' => "D & C", '2' => "Ectopic pregnancy", '3' => "PPH", '4' => "Retained Placenta"];
    public static $medical_presentations = ['1' => "STIs", '2' => "Cardiac Disease", '3' => "Asthma", '4' => "Sickel cell", '5' => "Kidney disease", '6' => "Diabetes", '7' => "Hypertension", '8' => "Cardiac disease", '9' => "Epilepsy (Seizures)", '10' => "Tuberculosis"];
    /**
     * Display a listing of all patient pregnancies.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $patient = Patient::find($patient_id);
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $documents = PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');

        $anc_registrations = AnteNatalClinicRegistration::where(['patient_id' => $patient_id])->orderBy('created_at', 'desc')->paginate(20);
        return view('antenatal::ante_natal_clinic.index', compact('patient_id', 'patient', 'anc_registrations', 'categories', 'marital_statuses', 'drug_categories', 'documents', 'known_patient_allergies', 'known_patient_alerts', 'drug_categories_array'));
    }

    /**
     * Display a listing of all ante natal visits.
     *
     * @return \Illuminate\Http\Response
     */
    public function index_visits()
    {
        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $patient = Patient::find($patient_id);
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $documents = PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');

        $anc_followup_records = AnteNatalClinicFollowup::where(['patient_id' => $patient_id])->orderBy('created_at', 'desc')->get()->groupBy('ante_natal_clinic_registration_id');
        return view('antenatal::ante_natal_clinic.index_visits', compact('patient_id', 'patient', 'anc_followup_records', 'categories', 'marital_statuses', 'drug_categories', 'documents', 'known_patient_allergies', 'known_patient_alerts', 'drug_categories_array'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $existing_anc_registration = AnteNatalClinicRegistration::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();
        //if an anc_registration of this episode exists, show the details page instead
        if (!is_null($existing_anc_registration)) {
            if ($existing_anc_registration->complete == 0) {
                //
            }
            flash('Pregnancy record for this episode already exists')->error();
            return redirect('ante_natal_clinic');
        }

        $patient = Patient::where(['id' => $patient_id])->first();
        $previous_medical_conditions = AnteNatalMotherHistory::where([['patient_id', $patient_id],['episode_id', '<>', $episode_id]])->latest()->first(['medical_presentations']);
        $last_five_pregnancies = AnteNatalClinicRegistration::where([['patient_id', $patient_id],['episode_id', '<>', $episode_id]])->latest()->take(5)->get();
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $diagnoses = DB::table('diagnoses')->whereNull('deleted_at')->orderBy('name', 'asc')->pluck("name", "id")->prepend('- select -', '');
        $drug_categories = DB::table('drug_categories')->get();
        $documents = PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');
        $family_planning_methods = FamilyPlanningMethod::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $gender_based_violence = GenderViolence::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $uterus_operations = Procedure::where('hmis_category_inpatient', 10046)->orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $caesarian_sections = CaesarianSection::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $triage_id = get_name($episode_id, "id", "triage_id", "patient_episodes");
        $triage = Triage::where(['id' => $triage_id])->first();
        // collect chronic drug ids as array
        $chronic_drugs_array = ChronicPatient::where('patient_id', $patient_id)->whereNotNull('drug_id')->get(['drug_id']);
        $chronic_results = Drug::whereIn('id', $chronic_drugs_array)->get();
        //select treatment
        $treatment = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->first();
        $blood_groups = DB::table('blood_groups')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $referrals = DB::table('referral_hospitals')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $accuracies = DB::table('ante_natal_clinic_accuracies')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $anc_outcomes = DB::table('ante_natal_clinic_outcomes')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $obstetric_history_details = ObstetricHistory::where(['patient_id' => $patient_id])->orderBy('obstetric_date', 'desc')->get();
        $hiv_statuses = ['' => '-- Select --', '0' => 'Negative', '1' => 'Positive', '3' => 'Unknown'];
        $previous_consultations = Consultation::leftJoin('patient_episodes as p','p.id','consultations.episode_id')->where([['consultations.patient_id', $patient_id],['episode_id', '<>',$episode_id]])->latest()->take(5)->get(['consultations.created_at','p.clinic_id', 'primary_diagnosis', 'other_diagnoses', 'consultations.created_by','episode_id','consultations.id']);
        $previous_surgeries = Surgery::where([['patient_id', $patient_id],['episode_id', '<>',$episode_id]])->latest()->take(5)->get(['created_at', 'primary_diagnosis', 'other_diagnoses', 'created_by','episode_id','procedure_id']);
        /* episode details */
        $episode = PatientEpisode::find($episode_id);
        /* get treatment */
        $treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->get();
        /* get ordered procedures */
        $ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for ordered investigations,procedures and treatment
        $ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        /* get ordered sundries */
        $ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for authenticated investigations
        $investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        $diagnoses_all = DB::table('diagnoses')->select('id', 'prompts', 'reference_areas', 'reference_names')->get();
        /* ======== added to cater for review episode =========*/
        $is_episode_a_review = check_if_episode_is_a_followup($episode->id);
        $parent_episode_treatments = [];
        $parent_episode_ordered_procedures = [];
        $parent_episode_ordered_investigations = [];
        $parent_episode_ordered_sundries = [];
        $parent_episode_investigation_results = [];

        if ($is_episode_a_review) {
            $parent_episode_details = PatientEpisode::find($episode->parent_episode_id);

            $parent_episode_treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id, 'tta' => 0])->get();
            $parent_episode_ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            $parent_episode_ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            /* get ordered sundries */
            $parent_episode_ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            //check for authenticated investigations
            $parent_episode_investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
        }
        /* ========end of varibales added to cater for review episodes ========*/

        return view('antenatal::ante_natal_clinic.create', compact('patient', 'patient_id', 'previous_surgeries','previous_medical_conditions', 'episode_id', 'gender_based_violence', 'last_five_pregnancies', 'uterus_operations', 'caesarian_sections', 'triage', 'treatment', 'categories', 'marital_statuses', 'drug_categories', 'documents', 'blood_groups', 'hiv_statuses', 'accuracies', 'referrals', 'anc_outcomes', 'known_patient_allergies', 'known_patient_alerts', 'drug_categories_array', 'obstetric_history_details', 'episode', 'ordered_procedures', 'ordered_investigations', 'investigation_results', 'treatments', 'ordered_sundries', 'parent_episode_treatments', 'parent_episode_ordered_procedures', 'parent_episode_ordered_sundries', 'parent_episode_ordered_investigations', 'parent_episode_investigation_results', 'family_planning_methods','previous_consultations', 'diagnoses','chronic_results'));
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {


        $url = "";
        /* try to perform this set of db transactions and if any fails, rollback everything */
        DB::transaction(function () use ($request) {
            $patient_id = session()->get('patient_id');
            $episode_id = session()->get('episode_id');
            $gravida = $request->gravida;
            $para = $request->para;
            $abortion = $request->abortion;
            $postpartum = $request->postpartum;
            $clinic_id = get_name('ante_natal', 'slug', 'id', 'clinics'); //get the id for antenatal clinic from clinics table            
            for ($k = 1; $k <= $request->pregnancy_number; $k++) {
                $pregnancy = 'pregnancy_'.$k;
                $obs_date = $pregnancy.'_obstetric_date';
                $gestation =  $pregnancy.'_gestation';
                $outcome = $pregnancy.'_obstetric_outcome';
                $abortion_outcome = $pregnancy.'_abortion_outcome';
                $stillbirth_type = $pregnancy.'_stillbirth_type';
                $delivery_type = $pregnancy.'_delivery_type';
                $classification = $pregnancy.'_classification';
                $puerperium = $pregnancy.'_puerperium';
                $pregnancy_complication = $pregnancy.'_pregnancy_complication';
                $child_name = $pregnancy.'_child_name';
                $child_gender = $pregnancy.'_child_gender';
                $child_patient_number = $pregnancy.'_child_patient_number';
                $child_birth_weight = $pregnancy.'_child_birth_weight';
                $child_immunisation_status = $pregnancy.'_child_immunisation_status';
                $child_health_condition = $pregnancy.'_child_health_condition';
                $child_counter = !empty($request->$child_name[0]) ? count($request->$child_name) : 0;
                $children = [];
                if ($child_counter > 0) {
                    for ($t = 0; $t < $child_counter; $t++) {
                        $children[] = [
                            'health_condition' => $request->$child_health_condition[$t], 'immunisation_status' => $request->$child_immunisation_status[$t], 'birth_weight' => $request->$child_birth_weight[$t],
                            'patient_number' => $request->$child_patient_number[$t], 'gender' => $request->$child_gender[$t], 'name' => $request->$child_name[$t]
                        ];
                    }
                }
                $obstetric_history = new ObstetricHistory;
                $obstetric_history->patient_id = $patient_id;
                $obstetric_history->episode_id = $episode_id;
                $obstetric_history->obstetric_date = isset($request->$obs_date) ? Carbon::createFromFormat('d/m/Y', $request->$obs_date)->toDateString() : null;
                $obstetric_history->gestation = $request->$gestation;
                $obstetric_history->outcome = $request->$outcome;
                $obstetric_history->stillbirth_type = $request->$stillbirth_type;
                $obstetric_history->clinic_id = $clinic_id;
                $obstetric_history->abortion_outcome = $request->$abortion_outcome;
                $obstetric_history->delivery_type = $request->$delivery_type;
                $obstetric_history->classification = $request->$classification;
                $obstetric_history->puerperium = $request->$puerperium;
                $obstetric_history->pregnancy_complication = $request->$pregnancy_complication;
                $obstetric_history->children = !empty($children)? json_encode($children) : null;
                $obstetric_history->created_by = auth()->user()->id;
                $obstetric_history->save();
            }
            // PPH
            $previous_pph = $request->previous_pph;
            $pph_details = $request->pph_details;
            $previous_scar = $request->previous_scar;
            $scar_number = $request->scar_number;
            $scar_indication = $request->scar_indication;
            $other_comments = $request->other_comments;
            // Blood Transfusion 
            $blood_group = $request->blood_group;
            $transfusion_date_array = (!empty($request->transfusion_date[0]) && (!empty($request->no_of_units[0]) || !empty($request->transfusion_comment[0])))? $request->transfusion_date:null;
            $number_of_units_array = $request->no_of_units;
            $transfusion_comment_array = $request->transfusion_comment;
            // VDRL/Hiv
            $hiv_result = $request->hiv_result?? '';
            $vdrl_result = $request->vdrl_result?? '';
            $vdrl_date = !empty($request->vdrl_date) ? Carbon::createFromFormat('d/m/Y', $request->vdrl_date)->toDateString() : null;
            $hiv_date = !empty($request->hiv_date) ? Carbon::createFromFormat('d/m/Y', $request->hiv_date)->toDateString() : null;
            $vdrl_location = $request->vdrl_location;
            $hiv_location = $request->hiv_location;
            //physique
            $height = $request->height;
            $weight = $request->weight;
            $bmi = $request->bmi;
            // This pregnancy
            $lmp = isset($request->lmp) ? Carbon::createFromFormat('d/m/Y', $request->lmp)->toDateString() : null;
            $accuracy = $request->accuracy;
            $edd = isset($request->edd) ? Carbon::createFromFormat('d/m/Y', $request->edd)->toDateString() : null;
            $referral = $request->refferal;
            $general_comments = $request->comments;
            //$triage_details = Triage::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();
            //$clinic_id = $triage_details->clinic_allocation;
            // ART
            $art_treatment_center =  $request->art_treatment_center;
            $art_treatment_number =  $request->art_treatment_number;

            $anc_registration = new AnteNatalClinicRegistration;
            $anc_registration->patient_id = $patient_id;
            $anc_registration->episode_id = $episode_id;
            $anc_registration->gravida = $gravida;
            $anc_registration->para = $para;
            $anc_registration->abortion = $abortion;
            $anc_registration->ectopic_pregnancies = $request->ectopic_pregnancies;
            //$anc_registration->postpartum = $postpartum;
            $anc_registration->previous_pph = $previous_pph;
            $anc_registration->previous_pph_details = $pph_details;
            $anc_registration->previous_scar = $previous_scar;
            $anc_registration->previous_scar_number = $scar_number;
            $anc_registration->previous_scar_indication = $scar_indication;
            $anc_registration->other_comments = $other_comments;
            $anc_registration->height = $height;
            $anc_registration->weight = $weight;
            $anc_registration->bmi = $bmi;
            $anc_registration->lmp = $lmp;
            $anc_registration->accuracy = $accuracy;
            $anc_registration->edd = $edd;
            $anc_registration->other_facility_visited_name = $request->other_facility_visited_name;            
            $anc_registration->other_facility_visit_date = isset($request->other_facility_visit_date)? Carbon::createFromFormat('d/m/Y',$request->other_facility_visit_date)->toDateString():null; 
            $anc_registration->woa_weeks = $request->woa_weeks;
            $anc_registration->complications = !empty($request->complications)? implode(',', $request->complications):null;
            $anc_registration->other_complications = $request->complications_others_input?? null;
            $anc_registration->hospital_visits = $request->hospital_visits?? null;
            $anc_registration->hospital_visit_reason = $request->hospital_visits_input?? null;
            $anc_registration->referral_from = $referral;
            $anc_registration->general_comments = $general_comments;
            $anc_registration->created_by = auth()->user()->id;
            if ($request->get('submit-btn') == 'complete') {
                $anc_registration->completed = 1;
                $anc_registration->save();
            } else {
                $anc_registration->save();
            }

            $registration_id = $anc_registration->id; //get the registration id
            if (!empty($vdrl_result) || isset($hiv_result)){
                $anc_vdrl_hiv_data = new AncVdrlHiv;
                $anc_vdrl_hiv_data->patient_id = $patient_id;
                $anc_vdrl_hiv_data->episode_id = $episode_id;
                $anc_vdrl_hiv_data->registration_id = $registration_id;
                $anc_vdrl_hiv_data->vdrl_result = $vdrl_result;
                $anc_vdrl_hiv_data->vdrl_date = $vdrl_date;
                $anc_vdrl_hiv_data->vdrl_location = $vdrl_location;
                $anc_vdrl_hiv_data->hiv_result = $hiv_result;
                $anc_vdrl_hiv_data->hiv_date = $hiv_date;
                $anc_vdrl_hiv_data->hiv_location = $hiv_location;
                $anc_vdrl_hiv_data->art_treatment_center = $art_treatment_center;
                $anc_vdrl_hiv_data->art_treatment_number = $art_treatment_number;
                $anc_vdrl_hiv_data->created_by = auth()->user()->id;
                $anc_vdrl_hiv_data->save();
            }

            //store antenatal blood transfusions
            if(!empty($transfusion_date_array))  for ($i = 0; $i < count($transfusion_date_array); $i++) {
                $anc_blood_transfusion = new AnteNatalClinicBloodTransfusion;
                $anc_blood_transfusion->patient_id = $patient_id;
                $anc_blood_transfusion->episode_id = $episode_id;
                $anc_blood_transfusion->registration_id = $registration_id;
                $anc_blood_transfusion->blood_group_id = $blood_group;
                $anc_blood_transfusion->transfusion_date = isset($transfusion_date_array[$i]) ? Carbon::createFromFormat('d/m/Y', $transfusion_date_array[$i])->toDateString() : null;
                $anc_blood_transfusion->number_of_units = $number_of_units_array[$i];
                $anc_blood_transfusion->comments = $transfusion_comment_array[$i];
                $anc_blood_transfusion->created_by = auth()->user()->id;
                $anc_blood_transfusion->save();
            }             

            //Store Mother's History
            $mother_history = new AntenatalMotherHistory();
            $mother_history->patient_id = $patient_id;
            $mother_history->episode_id = $episode_id;
            $mother_history->registration_id = $registration_id;
            $mother_history->menses_length =$request->menses_length;
            $mother_history->cycle_time =$request->cycle_time;
            $mother_history->menses_amount =$request->menses_amount;
            $mother_history->family_planning = $request->family_planning?? null;
            $mother_history->date_discontinued =$request->date_discontinued;
            $mother_history->why_stop_family_planning =$request->why_stop_family_planning;            
            $mother_history->any_medications =!empty($request->any_medications)? implode(',', $request->any_medications):null;
            $mother_history->other_any_medications =$request->any_medications_others_input;
            $mother_history->medical_presentations_others_input = $request->medical_presentations_others_input;           
            $mother_history->medical_presentations = !empty($request->medical_presentations)? implode(',', $request->medical_presentations):null;
            $mother_history->surgical_history = !empty($request->surgical_history)? implode(',', $request->surgical_history):null;
            $mother_history->surgical_history_operations =$request->surgical_history_operations_input;
            $mother_history->surgical_history_blood_transfusion =$request->surgical_history_blood_transfusion_input;
            $mother_history->obs_gyn =!empty($request->obs_gyn)? implode(',', $request->obs_gyn):null;
            $mother_history->caesarian_section =$request->caesarian_section;
            $mother_history->uterus_operations =$request->uterus_operations;
            foreach($request->uterus_operations_name as $key => $operation){
                if(!empty($operation)) $uterine_operations[] =['name'=>$operation, 'date'=>$request->uterus_operations_date[$key], 'facility_name'=>$request->uterus_operations_facility_name[$key]];
            }
            foreach($request->other_operations_name as $key => $operation){
                if(!empty($operation)) $other_surgeries[] =['name'=>$operation, 'date'=>$request->other_operations_date[$key], 'facility_name'=>$request->other_operations_facility_name[$key]];
            }
            $mother_history->uterine_surgeries = !empty($uterine_operations)? json_encode($uterine_operations):null;
            $mother_history->other_surgeries = !empty($other_surgeries)? json_encode($other_surgeries):null;
            $mother_history->family_history =!empty($request->family_history)? implode(',', $request->family_history): null;
            $mother_history->sgbv =$request->sgbv;
            $mother_history->sgbv_risk =!empty($request->sgbv_sgbv_risk_input)? implode(',', $request->sgbv_sgbv_risk_input):null;
            $mother_history->fractures =!empty($request->fractures)? implode(',', $request->fractures):null;
            $fractures[] = ['date'=>$request->fractures_pelvis_date?? null, 'details'=>$request->fractures_pelvis_input?? null];
            $fractures[] = ['date'=>$request->fractures_spine_date?? null, 'details'=>$request->fractures_spine_input?? null];
            $fractures[] = ['date'=>$request->fractures_femur_date?? null, 'details'=>$request->fractures_femur_input?? null];
            $mother_history->fracture_details = json_encode($fractures);
            $mother_history->husband_health =$request->husband_health;
            $mother_history->created_by =auth()->user()->id;
            $mother_history->save();
        });

        // redirect according to what button has been clicked 
        switch ($request->get('submit-btn')):
            case 'investigation':
                $url = 'investigations/investigations_review';
                break;

            case 'treatment':
                $url = 'prescriptions/create';
                break;

            case 'procedures':
                $url = 'order_procedures';
                break;

            case 'sundries':
                $url = 'order_sundries';
                break;

            case 'complete':
                $url = 'patient_episodes';
                break;

            case 'save_consultation':
                $url = '/patient_flow_monitoring/index';
                break;

            default:
                break;
        endswitch;
        flash('Ante Natal Clinic Registration successful')->success();
        return redirect($url);
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        $anc_registration_details = AnteNatalClinicRegistration::find($id);
        $episode_id = $anc_registration_details->episode_id;
        $patient_id = session()->get('patient_id');
        $patient = Patient::where(['id' => $patient_id])->first();
        $last_five_pregnancies = AnteNatalClinicRegistration::where([['patient_id', $patient_id], ['id','<>', $id]])->orderBy('created_at','desc')->take(5)->get();
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $previous_medical_conditions = AnteNatalMotherHistory::where([['patient_id', $patient_id],['episode_id', '<>', $episode_id]])->latest()->first(['medical_presentations']);
        $documents = \Streamline\Models\PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = \Streamline\Models\Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = \Streamline\Models\Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');
        $anc_outcomes = DB::table('ante_natal_clinic_outcomes')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $triage = Triage::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();        
        $obstetric_history_details = ObstetricHistory::where(['patient_id' => $patient_id])->orderBy('obstetric_date', 'desc')->get();
        $anc_blood_transfusion_details_collection = AnteNatalClinicBloodTransfusion::where(['patient_id' => $patient_id])->get();
        $dispensed_treatment = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->first();
        $ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        $anc_vdrl_hiv_details = AncVdrlHiv::where(['registration_id' => $anc_registration_details->id])->first();
        $hiv_statuses = ['' => '-- Select --', '0' => 'Negative', '1' => 'Positive', '3' => 'Unknown'];
        $family_planning_methods = FamilyPlanningMethod::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $gender_based_violence = GenderViolence::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $uterus_operations = Procedure::where('hmis_category_inpatient', 10046)->orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $caesarian_sections = CaesarianSection::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');        
        $mother_history = AntenatalMotherHistory::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'registration_id' =>$anc_registration_details->id])->first();
        $accuracies = DB::table('ante_natal_clinic_accuracies')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $referrals = DB::table('referral_hospitals')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $blood_groups = DB::table('blood_groups')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        // collect chronic drug ids as array
        $chronic_drugs_array = ChronicPatient::where('patient_id', $patient_id)->whereNotNull('drug_id')->get(['drug_id']);
        $chronic_results = Drug::whereIn('id', $chronic_drugs_array)->get(['id', 'name']);
        $previous_consultations = Consultation::leftJoin('patient_episodes as p','p.id','consultations.episode_id')->where([['consultations.patient_id', $patient_id],['episode_id', '<>',$episode_id]])->latest()->take(5)->get(['consultations.created_at','p.clinic_id', 'primary_diagnosis', 'other_diagnoses', 'consultations.created_by','episode_id','consultations.id']);
        /* episode details */
        $episode = PatientEpisode::find($episode_id);
        $previous_surgeries = Surgery::where([['patient_id', $patient_id],['episode_id', '<>',$episode_id]])->latest()->take(5)->get(['created_at', 'primary_diagnosis', 'other_diagnoses', 'created_by','episode_id','procedure_id']);
        $diagnoses = DB::table('diagnoses')->whereNull('deleted_at')->orderBy('name', 'asc')->pluck("name", "id");
        /* get treatment */
        $treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->get();
        /* get ordered procedures */
        $ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for ordered investigations,procedures and treatment
        $ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        /* get ordered sundries */
        $ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for authenticated investigations
        $investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        $diagnoses_all = DB::table('diagnoses')->select('id', 'prompts', 'reference_areas', 'reference_names')->get();
        $anc_vdrl_details = null;
        $anc_vdrl_episode_records = AncVdrlHiv::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        if (count($anc_vdrl_episode_records) > 0)  $anc_vdrl_details = $anc_vdrl_episode_records->first();
        /* ======== added to cater for review episode =========*/
        $is_episode_a_review = check_if_episode_is_a_followup($episode_id);
        $parent_episode_treatments = [];
        $parent_episode_ordered_procedures = [];
        $parent_episode_ordered_investigations = [];
        $parent_episode_ordered_sundries = [];
        $parent_episode_investigation_results = [];

        if ($is_episode_a_review) {
            $parent_episode_details = PatientEpisode::find($episode->parent_episode_id);

            $parent_episode_treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id, 'tta' => 0])->get();
            $parent_episode_ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            $parent_episode_ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            /* get ordered sundries */
            $parent_episode_ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            //check for authenticated investigations
            $parent_episode_investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
        }
        /* ========end of varibales added to cater for review episodes ========*/

        return view('antenatal::ante_natal_clinic.show_pregnancy', compact('patient', 'previous_consultations', 'previous_medical_conditions', 'previous_surgeries', 'chronic_results', 'diagnoses', 'patient_id','blood_groups','episode_id', 'referrals','accuracies','anc_vdrl_details','gender_based_violence','categories','mother_history','caesarian_sections','uterus_operations', 'marital_statuses', 'drug_categories', 'family_planning_methods','documents', 'known_patient_alerts', 'known_patient_allergies', 'anc_outcomes', 'triage', 'anc_registration_details', 'obstetric_history_details', 'anc_blood_transfusion_details_collection', 'dispensed_treatment', 'ordered_procedures', 'anc_vdrl_hiv_details', 'hiv_statuses', 'last_five_pregnancies', 'drug_categories_array', 'episode', 'ordered_procedures', 'ordered_investigations', 'investigation_results', 'treatments', 'ordered_sundries', 'parent_episode_treatments', 'parent_episode_ordered_procedures', 'parent_episode_ordered_sundries', 'parent_episode_ordered_investigations', 'parent_episode_investigation_results'));
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        $existing_anc_registration = AnteNatalClinicRegistration::find($id);
        $patient_id = $existing_anc_registration->patient_id;
        $episode_id = $existing_anc_registration->episode_id;

        $patient = Patient::where(['id' => $patient_id])->first();
        $anc_blood_transfusion_details = AnteNatalClinicBloodTransfusion::where([['patient_id', $patient_id],['episode_id', $episode_id]])->get();
        $anc_vdrl_details = null;
        $previous_medical_conditions = AnteNatalMotherHistory::where([['patient_id', $patient_id],['episode_id', '<>', $episode_id]])->latest()->first(['medical_presentations']);
        $anc_vdrl_details = AncVdrlHiv::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'registration_id' => $id])->latest()->first();        
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $documents = PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');
        $family_planning_methods = FamilyPlanningMethod::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $gender_based_violence = GenderViolence::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $uterus_operations = Procedure::where('hmis_category_inpatient', 10046)->orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');
        $caesarian_sections = CaesarianSection::orderBy('name', 'asc')->pluck("name", "id")->prepend('- Select -', '');        
        $mother_history = AntenatalMotherHistory::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'registration_id' =>$id])->first();
        $triage_id = get_name($episode_id, "id", "triage_id", "patient_episodes");
        $triage = Triage::find($triage_id);
        $last_five_pregnancies = AnteNatalClinicRegistration::where([['patient_id', $patient_id],['episode_id', '<>', $episode_id]])->latest()->take(5)->get();
        $previous_surgeries = Surgery::where([['patient_id', $patient_id],['episode_id', '<>',$episode_id]])->latest()->take(5)->get(['created_at', 'primary_diagnosis', 'other_diagnoses', 'created_by','episode_id','procedure_id']);
        $diagnoses = DB::table('diagnoses')->whereNull('deleted_at')->orderBy('name', 'asc')->pluck("name", "id")->prepend('- select -', '');
        //select treatment
        $treatment = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->first();
        $blood_groups = DB::table('blood_groups')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $referrals = DB::table('referral_hospitals')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $accuracies = DB::table('ante_natal_clinic_accuracies')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $anc_outcomes = DB::table('ante_natal_clinic_outcomes')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $obstetric_history_details = ObstetricHistory::where(['patient_id' => $patient_id])->orderBy('obstetric_date', 'desc')->get();
        $hiv_statuses = ['' => '-- Select --', '0' => 'Negative', '1' => 'Positive', '3' => 'Unknown'];
        // collect chronic drug ids as array
        $chronic_drugs_array = ChronicPatient::where('patient_id', $patient_id)->whereNotNull('drug_id')->get(['drug_id']);
        $chronic_results = Drug::whereIn('id', $chronic_drugs_array)->get(['id', 'name']);
        $previous_consultations = Consultation::leftJoin('patient_episodes as p','p.id','consultations.episode_id')->where([['consultations.patient_id', $patient_id],['episode_id', '<>',$episode_id]])->latest()->take(5)->get(['consultations.created_at','p.clinic_id', 'primary_diagnosis', 'other_diagnoses', 'consultations.created_by','episode_id','consultations.id']);
        /* episode details */
        $episode = PatientEpisode::find($episode_id);
        /* get treatment */
        $treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->get();
        /* get ordered procedures */
        $ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for ordered investigations,procedures and treatment
        $ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        /* get ordered sundries */
        $ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for authenticated investigations
        $investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        $diagnoses_all = DB::table('diagnoses')->select('id', 'prompts', 'reference_areas', 'reference_names')->get();

        /* ======== added to cater for review episode =========*/
        $is_episode_a_review = check_if_episode_is_a_followup($episode->id);
        $parent_episode_treatments = [];
        $parent_episode_ordered_procedures = [];
        $parent_episode_ordered_investigations = [];
        $parent_episode_ordered_sundries = [];
        $parent_episode_investigation_results = [];

        if ($is_episode_a_review) {
            $parent_episode_details = PatientEpisode::find($episode->parent_episode_id);

            $parent_episode_treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id, 'tta' => 0])->get();
            $parent_episode_ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            $parent_episode_ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            /* get ordered sundries */
            $parent_episode_ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
            //check for authenticated investigations
            $parent_episode_investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $parent_episode_details->id])->get();
        }
        $employees = DB::table('users')->whereNull('deleted_at')->orderBy('first_name', 'asc')->get();
        /* ========end of varibales added to cater for review episodes ========*/

        return view('antenatal::ante_natal_clinic.edit', compact('existing_anc_registration', 'diagnoses', 'previous_medical_conditions', 'last_five_pregnancies','previous_surgeries','employees','previous_consultations','uterus_operations', 'patient', 'patient_id', 'mother_history', 'episode_id', 'triage', 'treatment', 'categories', 'marital_statuses', 'family_planning_methods', 'gender_based_violence', 'gender_based_violence', 'caesarian_sections','drug_categories', 'documents', 'blood_groups', 'hiv_statuses', 'accuracies', 'referrals', 'anc_outcomes', 'known_patient_allergies', 'known_patient_alerts', 'drug_categories_array', 'obstetric_history_details', 'anc_blood_transfusion_details', 'anc_vdrl_details', 'episode', 'ordered_procedures', 'ordered_investigations', 'investigation_results', 'treatments', 'ordered_sundries', 'parent_episode_treatments', 'parent_episode_ordered_procedures', 'parent_episode_ordered_sundries', 'parent_episode_ordered_investigations', 'parent_episode_investigation_results','chronic_results'));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        $url = "";
        $anc_registration = AnteNatalClinicRegistration::find($id);
        
        /* try to perform this set of db transactions and if any fails, rollback everything */
        DB::transaction(function () use ($request, $anc_registration) {
            $patient_id = session()->get('patient_id');
            $episode_id = session()->get('episode_id');
            $gravida = $request->gravida;
            $para = $request->para;
            $abortion = $request->abortion;
            $postpartum = $request->postpartum;
            $previous_pph = $request->previous_pph;
            $pph_details = $request->pph_details;
            $previous_scar = $request->previous_scar;
            $scar_number = $request->scar_number;
            $scar_indication = $request->scar_indication;
            $other_comments = $request->other_comments;
            // Blood Transfusion 
            $blood_group = $request->blood_group;
            $transfusion_date_array = $transfusion_date_array = (!empty($request->transfusion_date[0]) && (!empty($request->no_of_units[0]) || !empty($request->transfusion_comment[0])))? $request->transfusion_date:[];
            $number_of_units_array = $request->no_of_units;
            $transfusion_comment_array = $request->transfusion_comment;
            // VDRL/Hiv
            $hiv_result = $request->hiv_result;
            $vdrl_result = $request->vdrl_result;
            $vdrl_date = (isset($request->vdrl_date) && !empty($vdrl_result)) ? Carbon::createFromFormat('d/m/Y', $request->vdrl_date)->toDateString() : null;
            $hiv_date = (isset($request->hiv_date) && isset($hiv_result)) ? Carbon::createFromFormat('d/m/Y', $request->hiv_date)->toDateString() : null;
            $vdrl_location = $request->vdrl_location;
            $hiv_location = $request->hiv_location;
            //physique
            $height = $request->height;
            $weight = $request->weight;
            $bmi = $request->bmi;
            // This pregnancy
            $lmp = isset($request->lmp) ? Carbon::createFromFormat('d/m/Y', $request->lmp)->toDateString() : null;
            $accuracy = $request->accuracy;
            $edd = isset($request->edd) ? Carbon::createFromFormat('d/m/Y', $request->edd)->toDateString() : null;
            $referral = $request->refferal;
            $general_comments = $request->comments;
            //clinic
            $clinic_id = get_name('ante_natal', 'slug', 'id', 'clinics'); //get the id for antenatal clinic from clinics table
            //$triage_details = Triage::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();
            //$clinic_id = $triage_details->clinic_allocation;
            // ART
            $art_treatment_center =  $request->art_treatment_center;
            $art_treatment_number =  $request->art_treatment_number;

            $anc_registration->patient_id = $patient_id;
            $anc_registration->episode_id = $episode_id;
            $anc_registration->gravida = $gravida;
            $anc_registration->para = $para;
            $anc_registration->abortion = $abortion;
            $anc_registration->ectopic_pregnancies = $request->ectopic_pregnancies;
            //$anc_registration->postpartum = $postpartum;
            $anc_registration->other_facility_visited_name = $request->other_facility_visited_name;
            $anc_registration->other_facility_visit_date = isset($request->other_facility_visit_date)? Carbon::createFromFormat('d/m/Y',$request->other_facility_visit_date)->toDateString():null; 
            $anc_registration->previous_pph = $previous_pph;
            $anc_registration->previous_pph_details = $pph_details;
            $anc_registration->previous_scar = $previous_scar;
            $anc_registration->previous_scar_number = $scar_number;
            $anc_registration->previous_scar_indication = $scar_indication;
            $anc_registration->other_comments = $other_comments;
            $anc_registration->height = $height;
            $anc_registration->weight = $weight;
            $anc_registration->bmi = $bmi;
            $anc_registration->lmp = $lmp;
            $anc_registration->woa_weeks = $request->woa_weeks;
            $anc_registration->accuracy = $accuracy;
            $anc_registration->edd = $edd;
            $anc_registration->referral_from = $referral;
            $anc_registration->general_comments = $general_comments;
            $anc_registration->updated_by = auth()->user()->id;
            if ($request->get('submit-btn') == 'complete') {
                $anc_registration->completed = 1;
                $anc_registration->save();
            } else {
                $anc_registration->save();
            }

            $registration_id = $anc_registration->id; //get the registration id

            $anc_vdrl_hiv_data_records = AncVdrlHiv::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'registration_id' => $registration_id])->get();
            $anc_vdrl_hiv_data = count($anc_vdrl_hiv_data_records) > 0 ? $anc_vdrl_hiv_data_records->first() : new AncVdrlHiv;
            $anc_vdrl_hiv_data->patient_id = $patient_id;
            $anc_vdrl_hiv_data->episode_id = $episode_id;
            $anc_vdrl_hiv_data->registration_id = $registration_id;
            $anc_vdrl_hiv_data->vdrl_result = $vdrl_result;
            $anc_vdrl_hiv_data->vdrl_date = $vdrl_date;
            $anc_vdrl_hiv_data->vdrl_location = $vdrl_location;
            $anc_vdrl_hiv_data->hiv_result = $hiv_result;
            $anc_vdrl_hiv_data->hiv_date = $hiv_date;
            $anc_vdrl_hiv_data->hiv_location = $hiv_location;
            $anc_vdrl_hiv_data->art_treatment_center = $art_treatment_center;
            $anc_vdrl_hiv_data->art_treatment_number = $art_treatment_number;
            count($anc_vdrl_hiv_data_records) > 0 ? $anc_vdrl_hiv_data->updated_by = auth()->user()->id :$anc_vdrl_hiv_data->created_by = auth()->user()->id;
            $anc_vdrl_hiv_data->save();

            //store antenatal blood transfusions
            for ($i = 0; $i < count($transfusion_date_array); $i++) {

                $transfuz_date = !empty($transfusion_date_array[$i]) ? Carbon::createFromFormat('d/m/Y', $transfusion_date_array[$i])->toDateString() : null;

                $anc_blood_transfusion_records = AnteNatalClinicBloodTransfusion::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->whereDate('transfusion_date', $transfuz_date)->get();

                $anc_blood_transfusion = count($anc_blood_transfusion_records) > 0 ? $anc_blood_transfusion_records->first() : new AnteNatalClinicBloodTransfusion;

                $anc_blood_transfusion->patient_id = $patient_id;
                $anc_blood_transfusion->episode_id = $episode_id;
                $anc_blood_transfusion->registration_id = $registration_id;
                $anc_blood_transfusion->blood_group_id = $blood_group;
                $anc_blood_transfusion->transfusion_date = isset($transfusion_date_array[$i]) ? Carbon::createFromFormat('d/m/Y', $transfusion_date_array[$i])->toDateString() : null;
                $anc_blood_transfusion->number_of_units = $number_of_units_array[$i];
                $anc_blood_transfusion->comments = $transfusion_comment_array[$i];
                count($anc_blood_transfusion_records) > 0 ? $anc_blood_transfusion->updated_by = auth()->user()->id : $anc_blood_transfusion->created_by = auth()->user()->id;
                $anc_blood_transfusion->save();
            }

            //store obstetric history data
            for ($k = 1; $k <= $request->pregnancy_number; $k++) {               
                $pregnancy = 'pregnancy_'.$k;
                $obs_date = $pregnancy.'_obstetric_date';
                $gestation =  $pregnancy.'_gestation';
                $outcome = $pregnancy.'_obstetric_outcome';
                $abortion_outcome = $pregnancy.'_abortion_outcome';
                $stillbirth_type = $pregnancy.'_stillbirth_type';
                $delivery_type = $pregnancy.'_delivery_type';
                $classification = $pregnancy.'_classification';
                $puerperium = $pregnancy.'_puerperium';
                $pregnancy_complication = $pregnancy.'_pregnancy_complication';
                $child_name = $pregnancy.'_child_name';
                $child_gender = $pregnancy.'_child_gender';
                $child_patient_number = $pregnancy.'_child_patient_number';
                $child_birth_weight = $pregnancy.'_child_birth_weight';
                $child_immunisation_status = $pregnancy.'_child_immunisation_status';
                $child_health_condition = $pregnancy.'_child_health_condition';
                $stored_pregnancy = $pregnancy.'_id';
                $deleted_pregnancy = 'delete_'.$pregnancy.'_id';
                $child_counter = !empty($request->$child_name[0]) ? count($request->$child_name) : 0;
                $children = [];
                if ($child_counter > 0) {
                    for ($t = 0; $t < $child_counter; $t++) {
                        $children[] = [
                            'health_condition' => $request->$child_health_condition[$t], 'immunisation_status' => $request->$child_immunisation_status[$t], 'birth_weight' => $request->$child_birth_weight[$t],
                            'patient_number' => $request->$child_patient_number[$t], 'gender' => $request->$child_gender[$t], 'name' => $request->$child_name[$t]
                        ];
                    }
                }
                if(!empty($request->$deleted_pregnancy)){
                   $delete_pregnancy = ObstetricHistory::find($request->$deleted_pregnancy);
                   $delete_pregnancy->delete();
                } elseif (!empty($request->$stored_pregnancy) && empty($request->$deleted_pregnancy)) {
                    $update_obstetric_history = ObstetricHistory::find($request->$stored_pregnancy);
                    $update_obstetric_history->patient_id = $patient_id;
                    $update_obstetric_history->episode_id = $episode_id;
                    $update_obstetric_history->obstetric_date = isset($request->$obs_date) ? Carbon::createFromFormat('d/m/Y', $request->$obs_date)->toDateString() : null;
                    $update_obstetric_history->gestation = $request->$gestation;
                    $update_obstetric_history->outcome = $request->$outcome;
                    $update_obstetric_history->clinic_id = $clinic_id;
                    $update_obstetric_history->abortion_outcome = $request->$abortion_outcome;
                    $update_obstetric_history->stillbirth_type = $request->$stillbirth_type;
                    $update_obstetric_history->delivery_type = $request->$delivery_type;
                    $update_obstetric_history->classification = $request->$classification;
                    $update_obstetric_history->puerperium = $request->$puerperium;
                    $update_obstetric_history->pregnancy_complication = $request->$pregnancy_complication;
                    $update_obstetric_history->children = !empty($children)? json_encode($children) : null;
                    $update_obstetric_history->updated_by = auth()->user()->id;
                    $update_obstetric_history->save();
                } else{                
                    $obstetric_history = new ObstetricHistory;
                    $obstetric_history->patient_id = $patient_id;
                    $obstetric_history->episode_id = $episode_id;
                    $obstetric_history->obstetric_date = isset($request->$obs_date) ? Carbon::createFromFormat('d/m/Y', $request->$obs_date)->toDateString() : null;
                    $obstetric_history->gestation = $request->$gestation;
                    $obstetric_history->outcome = $request->$outcome;
                    $obstetric_history->stillbirth_type = $request->$stillbirth_type;
                    $obstetric_history->clinic_id = $clinic_id;
                    $obstetric_history->abortion_outcome = $request->$abortion_outcome;
                    $obstetric_history->delivery_type = $request->$delivery_type;
                    $obstetric_history->classification = $request->$classification;
                    $obstetric_history->puerperium = $request->$puerperium;
                    $obstetric_history->pregnancy_complication = $request->$pregnancy_complication;
                    $obstetric_history->children = !empty($children)? json_encode($children) : null;
                    $obstetric_history->created_by = auth()->user()->id;
                    $obstetric_history->save();
                }
            }

            //Store Mother's History
            if (!empty($request->mother_obs_history_id)) {
                $mother_history = AntenatalMotherHistory::find($request->mother_obs_history_id);
                $mother_history->updated_by =auth()->user()->id;
            } else {
                $mother_history = new AntenatalMotherHistory();
                $mother_history->created_by =auth()->user()->id;
            }
            $mother_history->patient_id = $patient_id;
            $mother_history->episode_id = $episode_id;
            $mother_history->registration_id = $registration_id;
            $mother_history->menses_length =$request->menses_length;
            $mother_history->cycle_time =$request->cycle_time;
            $mother_history->menses_amount =$request->menses_amount;
            $mother_history->family_planning = $request->family_planning?? null;
            $mother_history->date_discontinued =$request->date_discontinued;
            $mother_history->why_stop_family_planning =$request->why_stop_family_planning;            
            $mother_history->any_medications =!empty($request->any_medications)? implode(',', $request->any_medications): null;
            $mother_history->other_any_medications =$request->any_medications_others_input;
            $mother_history->medical_presentations_others_input = $request->medical_presentations_others_input;           
            $mother_history->medical_presentations = !empty($request->medical_presentations)? implode(',', $request->medical_presentations) : null;
            $mother_history->surgical_history = !empty($request->surgical_history)? implode(',', $request->surgical_history):null;
            $mother_history->surgical_history_operations =$request->surgical_history_operations_input;
            $mother_history->surgical_history_blood_transfusion =$request->surgical_history_blood_transfusion_input;
            $mother_history->obs_gyn =!empty($request->obs_gyn)? implode(',', $request->obs_gyn): null;
            $mother_history->caesarian_section =$request->caesarian_section;
            $mother_history->uterus_operations =$request->uterus_operations;
            foreach($request->uterus_operations_name as $key => $operation){
                if(!empty($operation)) $uterine_operations[] =['name'=>$operation, 'date'=>$request->uterus_operations_date[$key], 'facility_name'=>$request->uterus_operations_facility_name[$key]];
            }
            foreach($request->other_operations_name as $key => $operation){
                if(!empty($operation)) $other_surgeries[] =['name'=>$operation, 'date'=>$request->other_operations_date[$key], 'facility_name'=>$request->other_operations_facility_name[$key]];
            }
            $mother_history->uterine_surgeries = !empty($uterine_operations)? json_encode($uterine_operations):null;
            $mother_history->other_surgeries = !empty($other_surgeries)?json_encode($other_surgeries):null; 
            $mother_history->family_history =!empty($request->family_history)? implode(',', $request->family_history): null;
            $mother_history->sgbv =$request->sgbv;
            $mother_history->sgbv_risk =!empty($request->sgbv_sgbv_risk_input)? implode(',', $request->sgbv_sgbv_risk_input): null;
            $mother_history->fractures =!empty($request->fractures)? implode(',', $request->fractures): null;
            $fractures[] = ['date'=>$request->fractures_pelvis_date?? null, 'details'=>$request->fractures_pelvis_input?? null];
            $fractures[] = ['date'=>$request->fractures_spine_date?? null, 'details'=>$request->fractures_spine_input?? null];
            $fractures[] = ['date'=>$request->fractures_femur_date?? null, 'details'=>$request->fractures_femur_input?? null];
            $mother_history->fracture_details = json_encode($fractures);
            $mother_history->husband_health =$request->husband_health;            
            $mother_history->save();
        });
        // performing an ordered procedure.
        if (!empty($request->perform_selected)) {
            foreach ($request->perform_selected as $procedure_array_id) {
                $arr = explode(",", get_name($request->procedure_order_perform[$procedure_array_id], 'id', 'performed', 'ordered_procedures'));
                $arr_id = explode(",", get_name($request->procedure_order_perform[$procedure_array_id], 'id', 'performed_id', 'ordered_procedures'));

                $performed_id = record_staff_that_has_performed_the_service(
                    session()->get('patient_id'),
                    session()->get('episode_id'),
                    1,
                    $request->perform[$procedure_array_id],
                    0,
                    $request->procedure_performed_by[$procedure_array_id]
                );

                if (isset($arr[$request->procedure_performed_position[$procedure_array_id]])) {
                    $arr[$request->procedure_performed_position[$procedure_array_id]] = 1;
                    $arr_id[$request->procedure_performed_position[$procedure_array_id]] = $performed_id;
                    $update = DB::table('ordered_procedures')->where('id', $request->procedure_order_perform[$procedure_array_id])
                        ->update(['performed' => implode(",", $arr), 'performed_id' => implode(",", $arr_id)]);
                }
            }
        }
        // redirect according to what button has been clicked 
        switch ($request->get('submit-btn')):
            case 'investigation':
                $url = 'investigations/investigations_review';
                break;

            case 'treatment':
                $url = 'prescriptions/create';
                break;

            case 'procedures':
                $url = 'order_procedures';
                break;

            case 'sundries':
                $url = 'order_sundries';
                break;

            case 'complete':
                $url = '/ante_natal_clinic/'.$anc_registration->id;
                break;

            case 'save_consultation':
                $url = '/patient_flow_monitoring/index';
                break;

            default:
                break;
        endswitch;

        flash('AnteNatal clinic registration has been updated successfully')->success();
        return redirect($url);
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }

    /*
    Display Ante Natal Clinic menu
    */
    public function menu()
    {
        $patient_id = session()->get('patient_id');
        $episode_id = session()->get('episode_id');
        $patient = Patient::where(['id' => $patient_id])->first();
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $documents = \Streamline\Models\PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = \Streamline\Models\Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = \Streamline\Models\Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');
        return view('antenatal::ante_natal_clinic.menu', compact('patient_id', 'episode_id', 'patient', 'documents', 'known_patient_alerts', 'known_patient_allergies', 'categories', 'marital_statuses', 'drug_categories', 'drug_categories_array'));
    }

    /*view details of the last ante natal clinic visit */
    public function view_antenatal_visit($id)
    {
        $episode_id = $id;
        $patient_id = session()->get('patient_id');
        $patient = Patient::find($patient_id);

        //used by the allergies partial
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $triage_id = get_name($episode_id, "id", "triage_id", "patient_episodes");
        $triage = Triage::where(['id' => $triage_id])->first();
        $symptoms = DB::table('symptoms')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $treatment = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->first();
        $documents = \Streamline\Models\PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = \Streamline\Models\Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = \Streamline\Models\Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');

        $last_anc_followup_record = AnteNatalClinicFollowup::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->orderBy('created_at', 'desc')->first();
        $anc_followup_records = AnteNatalClinicFollowup::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->orderBy('created_at', 'desc')->paginate(50);
        //if there is no previous record of the anc follow up go back to ANC menu
        if (is_null($last_anc_followup_record)) {
            flash('No previous records for this patient')->error();
            return redirect()->back();
        }
        $checklist = json_decode($last_anc_followup_record->checklist, true);

        return view('antenatal::ante_natal_clinic.last_antenatal_visit_details', compact('patient_id', 'episode_id', 'patient', 'categories', 'marital_statuses', 'drug_categories', 'documents', 'known_patient_alerts', 'known_patient_allergies', 'drug_categories_array', 'triage', 'symptoms', 'treatment', 'last_anc_followup_record', 'checklist', 'anc_followup_records'));
    }

    /* create anc follow up form */
    public function antenatal_visit()
    {

        $data = $this->getAncVisitData();
        $data['resume'] = FALSE;
        
        $data['resume_anc_followup'] = AnteNatalClinicFollowup::where(['patient_id' => $data['patient_id'], 'episode_id' => $data['episode_id'], 'completion_status' => 0])->first();

        
        $data['visit_number'] = !empty($data['anc_visit_records'])? count($data['anc_visit_records']) + 1:1;

        /*if the anc_followup exists then try to resume */
        if (!is_null($data['resume_anc_followup'])) {
            $data['resume'] = TRUE;
            $data['visit_number'] = $data['resume_anc_followup']->ante_natal_clinic_visit_number;

            return redirect('anc_visits/' . $data['resume_anc_followup']->id . '/edit');
        }


        $data['previous_anc_visits'] = AnteNatalClinicFollowup::where(['patient_id' => $data['patient_id']])->orderBy('created_at', 'desc')->take(5)->get()->groupBy('ante_natal_clinic_registration_id');
        return view('antenatal::ante_natal_clinic.antenatal_visit', $data);
    }

    /* store anc template form details */
    public function store_anc_template(Request $request)
    {

        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $physical_exam = [];
        // $existing_anc_followup_record = AnteNatalClinicFollowup::where(['episode_id' => $episode_id])->first();

        /* instantiate a new eloquent model or get the existing one for updating */
        $anc_followup_record = new AnteNatalClinicFollowup;
        $anc_followup_record->patient_id = $patient_id;
        $anc_followup_record->episode_id = $episode_id;
        $anc_followup_record->ante_natal_clinic_date = Carbon::today()->toDateString();
        $anc_followup_record->ante_natal_clinic_registration_id = $request->anc_registration_id;
        $anc_followup_record->ante_natal_clinic_visit_number = $request->anc_visit_number;
        $anc_followup_record->fundal_height = $request->fundal_height;
        $anc_followup_record->lie = $request->lie;
        $anc_followup_record->other_physicals = !empty($request->other_physicals)? implode(',', $request->other_physicals):null;
        $anc_followup_record->presentation = $request->presentation;
        $anc_followup_record->engagement = $request->engagement;
        $anc_followup_record->position = $request->position;
        $anc_followup_record->foetal_heart_rate = $request->foetal_heart_rate;
        $anc_followup_record->foetal_heart_regularity = $request->foetal_heart_regularity;
        $anc_followup_record->aph = $request->history_of_aph;
        $anc_followup_record->aph_details = $request->aph_details;
        $anc_followup_record->fits = $request->histoy_of_fits;
        $anc_followup_record->fits_details = $request->fits_details;
        $physical_exam['height'] =$request->height;
        $physical_exam['weight'] =$request->weight;
        $physical_exam['bmi'] =$request->bmi;
        $physical_exam['muac'] =$request->muac;
        $physical_exam['nut_status'] =$request->nut_status;
        $physical_exam['temperature'] =$request->temperature;
        $physical_exam['bp'] =$request->bp;
        $physical_exam['pulse'] =$request->pulse;
        $physical_exam['gait'] =$request->gait;
        $physical_exam['oral'] =$request->oral;
        $physical_exam['teeth'] =$request->teeth;
        $physical_exam['neck'] =$request->neck;
        $physical_exam['breasts'] =$request->breasts;
        $physical_exam['legs'] =$request->legs;
        $physical_exam['deformities'] =$request->deformities;
        $physical_exam['lymph'] =$request->lymph;
        $physical_exam['herpes'] =$request->herpes;
        $physical_exam['anaemia'] =$request->anaemia;
        $physical_exam['eyes'] =$request->eyes;
        $physical_exam['nails'] =$request->nails;
        $physical_exam['palms'] =$request->palms;
        $physical_exam['jaundice'] =$request->jaundice;
        $physical_exam['heart'] =$request->heart;
        $physical_exam['lungs'] =$request->lungs;
        $physical_exam['vulva'] =$request->vulva;
        $physical_exam['vagina'] =$request->vagina;
        $physical_exam['cervix'] =$request->cervix;
        $physical_exam['vaginal_discharge'] =$request->vaginal_discharge;
        $anc_followup_record->physical_exam = json_encode($physical_exam);
        $symptoms_array = $request->symptoms;
        $duration_array = $request->duration;
        $time_array = $request->time;
        
        // Build symptoms and duration variables
        $symptoms = '';
        $durations = '';
        for ($x = 0; $x < count($symptoms_array); $x++) {
            if ($x == (count($symptoms_array) - 1)) {
                $symptoms .= $symptoms_array[$x];
                $durations .= $duration_array[$x] . " " . $time_array[$x];
            } else {
                $symptoms .= $symptoms_array[$x] . ",";
                $durations .= $duration_array[$x] . " " . $time_array[$x] . ",";
            }
        }
        $anc_followup_record->symptoms = $symptoms;
        $anc_followup_record->symptom_duration = $durations;

        // $anc_followup_record->bp = $request->bp;
        $anc_followup_record->scan_edd = is_null($request->scan_edd) ? null : Carbon::createFromFormat('d/m/Y', $request->scan_edd)->toDateString();
        $anc_followup_record->gestation_from_edd = $request->gestation_from_edd;
        $anc_followup_record->gestation_from_scan = $request->gestation_from_scan;
        $anc_followup_record->gestation_from_fundal = $request->gestation_from_fundal_height;
        //checklist items
        $first_dose_ipt = isset($request->first_dose_ipt) ? $request->first_dose_ipt : '';
        $second_dose_ipt = isset($request->second_dose_ipt) ? $request->second_dose_ipt : '';
        $third_dose_ipt = isset($request->third_dose_ipt) ? $request->third_dose_ipt : '';
        $fourth_dose_ipt = isset($request->fourth_dose_ipt) ? $request->fourth_dose_ipt : '';
        $hiv_status = isset($request->hiv_status) ? $request->hiv_status : '';
        $bed_net = isset($request->bed_net) ? $request->bed_net : '';
        $iron_folic = isset($request->iron_folic) ? $request->iron_folic : '';
        $vdrl = isset($request->vdrl) ? $request->vdrl : '';
        $health_education = isset($request->health_education) ? $request->health_education : '';
        $tetanus_toxoid = isset($request->tetanus_toxoid) ? $request->tetanus_toxoid : '';

        $checklist = array($first_dose_ipt, $second_dose_ipt, $third_dose_ipt, $fourth_dose_ipt, $hiv_status, $bed_net, $iron_folic, $vdrl, $health_education, $tetanus_toxoid);
        $anc_followup_record->checklist = json_encode($checklist);
        $anc_followup_record->comments = $request->comments;
        $anc_followup_record->history_comments = $request->history_comments;
        $anc_followup_record->clinic_examination_comments = $request->clinic_examination_comments;
        $anc_followup_record->investigation_and_management_plan_comments = $request->investigation_and_management_plan_comments;
        $anc_followup_record->primary_diagnosis = $request->primary_diagnosis ?? NULL;
        $anc_followup_record->other_diagnoses = $request->other_diagnosis ? implode(',', $request->other_diagnosis) : null;
        /* check if any submit_btn(investigations,treatment,procedures,ultra_scan) button is clicked and set completion status to 0 i.s false */
        $completed = isset($request->complete_btn) ? 1 : 0;
        $anc_followup_record->completion_status = $completed;
        $anc_followup_record->outcome_id = $request->outcome;
       
        switch ($request->outcome):
            case 1: //Admitted
                $inpatient = new InpatientInfo;
                $inpatient->patient_id = $patient_id;
                $inpatient->episode_id = $episode_id;
                $inpatient->admitted_on = !empty($request->admitted_on)? Carbon::createFromFormat('d/m/Y', $request->admitted_on)->toDateString() : date('Y-m-d');
                $inpatient->ward_id = $request->ward_id;
                $inpatient->primary_diagnosis = $request->primary_diagnosis;
                $inpatient->other_diagnoses = serialize($request->other_diagnosis);
                $inpatient->comments = $request->comments;
                $inpatient->created_by = auth()->user()->id;
                $inpatient->save();

                
                $anc_followup_record->ward_id = $request->ward_id;
                $anc_followup_record->admitted_on = !is_null($request->admitted_on) ? Carbon::createFromFormat('d/m/Y', $request->admitted_on)->toDateString() : null;
                break;
            case 3: // Home with followup
                $anc_followup_record->followup_where = "Hospital";
                $anc_followup_record->followup_when = !is_null($request->followup_when) ? Carbon::createFromFormat('d/m/Y', $request->followup_when)->toDateString() : null;

                // save information to the follow-up table
                $appointment = new \Streamline\Models\PatientAppointment();
                $appointment->patient_id = $patient_id;
                $appointment->incharge_id = $request->followup_in_charge;
                $appointment->clinic_allocation = $request->followup_clinic_allocation;
                $appointment->episode_id = $episode_id;
                $appointment->appointment_date = !is_null($request->followup_when) ? Carbon::createFromFormat('d/m/Y', $request->followup_when)->toDateString() : null;
                $appointment->appointment_time = $request->followup_in_time;
                $appointment->created_from = "Antenatal";
                $appointment->created_by = auth()->user()->id;
                $appointment->save();
                break;
            case 4: // Referred
                $anc_followup_record->referred_to = $request->referral_id;
                break;
            default:
                break;
        endswitch;

        $anc_followup_record->created_by = auth()->user()->id;
        /* if $resume is set and also equal to true, then update the record else insert a new one */
        $save_or_update = isset($request->resume) ? $anc_followup_record->update() : $anc_followup_record->save();        
        $url = '';
        //Store Delivery Plan details
        if(!empty($request->delivery_plan_id)) {
            $delivery_plan_record = AncDeliveryPlan::find($request->delivery_plan_id);
            $delivery_plan_record->updated_by = auth()->user()->id;
        }
        else  {
            $delivery_plan_record = new AncDeliveryPlan();
            $delivery_plan_record->created_by = auth()->user()->id;
        }
        $delivery_plan_record->patient_id = $patient_id;
        $delivery_plan_record->episode_id = $episode_id;
        $delivery_plan_record->registration_id = $request->anc_registration_id;
        $delivery_plan_record->live_in_support = $request->live_in_support;
        $delivery_plan_record->emergency_support = $request->emergency_support;
        $delivery_plan_record->facility_stay = $request->facility_stay;
        $delivery_plan_record->transport_means = $request->transport_means;
        $delivery_plan_record->home_keeper = $request->home_keeper;
        $delivery_plan_record->delivery_method = $request->delivery_method;
        $delivery_plan_record->family_planning_method = $request->family_planning_method;
        $delivery_plan_record->health_screening =  !empty($request->health_screening)? implode(',', $request->health_screening):null;
        $delivery_plan_record->disposal = $request->disposal;
        $delivery_plan_record->save();

        if(empty($request->complete_btn)) session()->put('anc_visit_redirect','anc_visits/'.$anc_followup_record->id.'/edit');
        else {
            if($save_or_update) flash('ANC record saved successfully')->success();
            return self::view_anc_visit_details($anc_followup_record->id);
        }

        if ($save_or_update) {
            /* redirect to the appropriate url after saving or updating the record depending on the clicked button */
            switch ($request->submit_btn) {
                case 'investigation':
                    $url = 'investigations/investigations_review';
                    break;
                case 'treatment':
                    $url = 'prescriptions/create/';
                    break;
                case 'procedures':
                    $url = 'order_procedures';
                    break;
                case 'order_ultrasound':
                    $url = 'investigations/investigations_review_ultrasound_obstetric';
                    break;
                default:
                    $url = 'patient_episodes';
                    break;
            }

            flash('ANC record saved successfully')->success();
            return redirect($url);
        }

        flash('Error occured in trying to save the anc record')->error();
        return redirect()->back()->withInput();
    }

    public function edit_anc_visit($id)
    {

        $data = $this->getAncVisitData();
        $data['resume'] = TRUE;
        $data['resume_anc_followup'] = AnteNatalClinicFollowup::find($id);
        $data['visit_number'] = $data['resume_anc_followup']->ante_natal_clinic_visit_number;
        $data['previous_anc_visits'] = AnteNatalClinicFollowup::where('patient_id', $data['patient_id'])->where('id','<>', $id)->orderBy('created_at', 'desc')->take(5)->get()->groupBy('ante_natal_clinic_registration_id');

        return view('antenatal::ante_natal_clinic.antenatal_visit_edit', $data);
    }

    /* update an edited ANC visit a.k.a ANC followup */
    public function update_anc_template(Request $request, $id)
    {
        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $anc_followup_record = AnteNatalClinicFollowup::findOrFail($id);
        $physical_exam = [];
        $anc_followup_record->patient_id = $patient_id;
        $anc_followup_record->episode_id = $episode_id;
        $anc_followup_record->ante_natal_clinic_registration_id = $request->anc_registration_id;
        $anc_followup_record->ante_natal_clinic_visit_number = $request->anc_visit_number;
        $anc_followup_record->fundal_height = $request->fundal_height;
        $anc_followup_record->lie = $request->lie;
        $anc_followup_record->other_physicals = !empty($request->other_physicals)? implode(',', $request->other_physicals):null;
        $anc_followup_record->presentation = $request->presentation;
        $anc_followup_record->engagement = $request->engagement;
        $anc_followup_record->position = $request->position;
        $anc_followup_record->foetal_heart_rate = $request->foetal_heart_rate;
        $anc_followup_record->foetal_heart_regularity = $request->foetal_heart_regularity;
        $anc_followup_record->aph = $request->history_of_aph;
        $anc_followup_record->aph_details = $request->aph_details;
        $anc_followup_record->fits = $request->histoy_of_fits;
        $anc_followup_record->fits_details = $request->fits_details;
        $physical_exam['height'] =$request->height;
        $physical_exam['weight'] =$request->weight;
        $physical_exam['bmi'] =$request->bmi;
        $physical_exam['muac'] =$request->muac;
        $physical_exam['nut_status'] =$request->nut_status;
        $physical_exam['temperature'] =$request->temperature;
        $physical_exam['bp'] =$request->bp;
        $physical_exam['pulse'] =$request->pulse;
        $physical_exam['gait'] =$request->gait;
        $physical_exam['oral'] =$request->oral;
        $physical_exam['teeth'] =$request->teeth;
        $physical_exam['neck'] =$request->neck;
        $physical_exam['breasts'] =$request->breasts;
        $physical_exam['legs'] =$request->legs;
        $physical_exam['deformities'] =$request->deformities;
        $physical_exam['lymph'] =$request->lymph;
        $physical_exam['herpes'] =$request->herpes;
        $physical_exam['anaemia'] =$request->anaemia;
        $physical_exam['eyes'] =$request->eyes;
        $physical_exam['nails'] =$request->nails;
        $physical_exam['palms'] =$request->palms;
        $physical_exam['jaundice'] =$request->jaundice;
        $physical_exam['heart'] =$request->heart;
        $physical_exam['lungs'] =$request->lungs;
        $physical_exam['vulva'] =$request->vulva;
        $physical_exam['vagina'] =$request->vagina;
        $physical_exam['cervix'] =$request->cervix;
        $physical_exam['vaginal_discharge'] =$request->vaginal_discharge;
        $anc_followup_record->physical_exam = json_encode($physical_exam);

        $symptoms_array = $request->symptoms;
        $duration_array = $request->duration;
        $time_array = $request->time;
        // Build symptoms and duration variables as copied from Triage Controller
        $symptoms = '';
        $durations = '';
        for ($x = 0; $x < count($symptoms_array); $x++) {
            if ($x == (count($symptoms_array) - 1)) {
                $symptoms .= $symptoms_array[$x];
                $durations .= $duration_array[$x] . " " . $time_array[$x];
            } else {
                $symptoms .= $symptoms_array[$x] . ",";
                $durations .= $duration_array[$x] . " " . $time_array[$x] . ",";
            }
        }
        $anc_followup_record->symptoms = $symptoms;
        $anc_followup_record->symptom_duration = $durations;

        // $anc_followup_record->bp = $request->bp;
        $anc_followup_record->scan_edd = is_null($request->scan_edd) ? null : Carbon::createFromFormat('d/m/Y', $request->scan_edd)->toDateString();
        $anc_followup_record->gestation_from_edd = $request->gestation_from_edd;
        $anc_followup_record->gestation_from_scan = $request->gestation_from_scan;
        $anc_followup_record->gestation_from_fundal = $request->gestation_from_fundal_height;
        //checklist items
        $first_dose_ipt = isset($request->first_dose_ipt) ? $request->first_dose_ipt : '';
        $second_dose_ipt = isset($request->second_dose_ipt) ? $request->second_dose_ipt : '';
        $third_dose_ipt = isset($request->third_dose_ipt) ? $request->third_dose_ipt : '';
        $fourth_dose_ipt = isset($request->fourth_dose_ipt) ? $request->fourth_dose_ipt : '';
        $hiv_status = isset($request->hiv_status) ? $request->hiv_status : '';
        $bed_net = isset($request->bed_net) ? $request->bed_net : '';
        $iron_folic = isset($request->iron_folic) ? $request->iron_folic : '';
        $vdrl = isset($request->vdrl) ? $request->vdrl : '';
        $health_education = isset($request->health_education) ? $request->health_education : '';
        $tetanus_toxoid = isset($request->tetanus_toxoid) ? $request->tetanus_toxoid : '';

        $checklist = array($first_dose_ipt, $second_dose_ipt, $third_dose_ipt, $fourth_dose_ipt, $hiv_status, $bed_net, $iron_folic, $vdrl, $health_education, $tetanus_toxoid);
        $anc_followup_record->checklist = json_encode($checklist);
        $anc_followup_record->comments = $request->comments;
        $anc_followup_record->history_comments = $request->history_comments;
        $anc_followup_record->clinic_examination_comments = $request->clinic_examination_comments;
        $anc_followup_record->investigation_and_management_plan_comments = $request->investigation_and_management_plan_comments;
        $anc_followup_record->primary_diagnosis = $request->primary_diagnosis;
        $anc_followup_record->other_diagnoses = (!empty($request->other_diagnosis[0])) ? implode(',', $request->other_diagnosis) : null;
        /* check if any submit_btn(investigations,treatment,procedures,ultra_scan) button is clicked and set completion status to 0 i.s false */
        $completed = isset($request->complete_btn) ? 1 : 0; 
        $anc_followup_record->completion_status = $completed;
        
        $anc_followup_record->outcome_id = $request->outcome;

        switch ($request->outcome):
            case 1: //Admitted
                $inpatient_info = InpatientInfo::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'discharged' => 0])->orderBy('created_at', 'desc')->first();                
                if ($inpatient_info) {
                    $inpatient_info->ward_id = $request->ward_id;
                    $inpatient_info->updated_by = auth()->user()->id;
                    $inpatient_info->save();
                } else {
                    $inpatient = new InpatientInfo;
                    $inpatient->patient_id = $patient_id;
                    $inpatient->episode_id = $episode_id;
                    $inpatient->admitted_on = !empty($request->admitted_on)? Carbon::createFromFormat('d/m/Y', $request->admitted_on)->toDateString() : date('Y-m-d');
                    $inpatient->ward_id = $request->ward_id;
                    $inpatient->primary_diagnosis = $request->primary_diagnosis;
                    $inpatient->other_diagnoses = serialize($request->other_diagnosis);
                    $inpatient->comments = $request->comments;
                    $inpatient->created_by = auth()->user()->id;
                    $inpatient->save();
                }

                $anc_followup_record->ward_id = $request->ward_id;
                $anc_followup_record->admitted_on = !is_null($request->admitted_on) ? Carbon::createFromFormat('d/m/Y', $request->admitted_on)->toDateString() : null;
                break;
            case 3: // Home with followup
                /*$anc_followup_record->followup_where = $request->followup_where;
                $anc_followup_record->followup_when = !is_null($request->followup_when) ? Carbon::createFromFormat('d/m/Y',$request->followup_when)->toDateString() : null;*/
                $anc_followup_record->followup_where = "Hospital";
                $anc_followup_record->followup_when = !is_null($request->followup_when) ? Carbon::createFromFormat('Y-m-d', $request->followup_when)->toDateString() : null;

                // save information to the follow-up table
                $patient_appointment = \Streamline\Models\PatientAppointment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();
                $appointment = $patient_appointment ? $patient_appointment : new \Streamline\Models\PatientAppointment();
                $appointment->patient_id = $patient_id;
                $appointment->incharge_id = $request->followup_in_charge;
                $appointment->clinic_allocation = $request->followup_clinic_allocation;
                $appointment->episode_id = $episode_id;
                $appointment->appointment_date = !is_null($request->followup_when) ? Carbon::createFromFormat('Y-m-d', $request->followup_when)->toDateString() : null;
                $appointment->appointment_time = $request->followup_in_time;
                $appointment->created_from = "Antenatal";
                $appointment->created_by = auth()->user()->id;
                $appointment->updated_by = auth()->user()->id;
                $appointment->save();
                break;
            case 4: // Referred
                $anc_followup_record->referred_to = $request->referral_id;
                break;
            default:
                break;
        endswitch;

        $anc_followup_record->updated_by = auth()->user()->id;
        $save_or_update = $anc_followup_record->save();
        $url = '';
        //Store Delivery Plan details
        if(!empty($request->delivery_plan_id)) {
            $delivery_plan_record = AncDeliveryPlan::find($request->delivery_plan_id);
            $delivery_plan_record->updated_by = auth()->user()->id;
        }
        else  {
            $delivery_plan_record = new AncDeliveryPlan();
            $delivery_plan_record->created_by = auth()->user()->id;
            $delivery_plan_record->patient_id = $patient_id;
            $delivery_plan_record->episode_id = $episode_id;
            $delivery_plan_record->registration_id = $request->anc_registration_id;
        }
        $delivery_plan_record->live_in_support = $request->live_in_support;
        $delivery_plan_record->emergency_support = $request->emergency_support;
        $delivery_plan_record->facility_stay = $request->facility_stay;
        $delivery_plan_record->transport_means = $request->transport_means;
        $delivery_plan_record->home_keeper = $request->home_keeper;
        $delivery_plan_record->delivery_method = $request->delivery_method;
        $delivery_plan_record->family_planning_method = $request->family_planning_method;
        $delivery_plan_record->health_screening = !empty($request->health_screening)? implode(',', $request->health_screening):null;
        $delivery_plan_record->disposal = $request->disposal;
        $delivery_plan_record->save();
        
        if(empty($request->complete_btn)) session()->put('anc_visit_redirect','anc_visits/'.$anc_followup_record->id.'/edit');
        else {
            if($save_or_update) flash('ANC record saved successfully')->success();
            return self::view_anc_visit_details($anc_followup_record->id);
        }

        if ($save_or_update) {
            /* redirect to the appropriate url after saving or updating the record depending on the clicked button */
            switch ($request->submit_btn) {
                case 'investigation':
                    $url = 'investigations/investigations_review';
                    break;
                case 'treatment':
                    $url = 'prescriptions/create/';
                    break;
                case 'procedures':
                    $url = 'order_procedures';
                    break;
                case 'order_ultrasound':
                    $url = 'investigations/investigations_review_ultrasound_obstetric';
                    break;
                default:
                    $url = 'patient_episodes';
                    break;
            }

            flash('ANC record saved successfully')->success();
            return redirect($url);
        }

        flash('Error occured in trying to save the anc record')->error();
        return redirect()->back()->withInput();
    }

    /* check if a pregnancy for that antenatal episode is registered. To record an Antenatal visit, thats epsiode
    *  must have a record in the the ANC registration table
    */
    public function check_anc_registration()
    {
        $patient_id = session()->get('patient_id');
        $anc_registration_record = AnteNatalClinicRegistration::where('patient_id', $patient_id)->latest()->first();
        if (!empty($anc_registration_record)) {
            $edd = Carbon::parse($anc_registration_record->edd);
            $date_latest = $edd->addWeeks(6);
            if (Carbon::now() < $date_latest) return "true";
            else return "false";            
        }
        else return "false";
    }

    public function view_anc_visit_details($id)
    {
        $patient_id = session()->get('patient_id');
        $episode_id = session()->get('episode_id');

        $visit_record_details = AnteNatalClinicFollowup::findOrFail($id);

        $patient = Patient::find($patient_id);
        $diagnoses = DB::table('diagnoses')->whereNull('deleted_at')->orderBy('name', 'asc')->pluck("name", "id");
        $outcomes = DB::table('outcomes')->whereNull('deleted_at')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');

        $anc_lies = AnteNatalClinicLie::pluck('name', 'id');
        $anc_presentations = AnteNatalClinicPresentation::pluck('name', 'id');
        $anc_positions = AnteNatalClinicPosition::pluck('name', 'id');
        $anc_engagements = AnteNatalClinicEngagement::pluck('name', 'id');
        $anc_registration = AnteNatalClinicRegistration::where(['patient_id' => $patient_id])->latest()->first();
        $delivery_plan = AncDeliveryPlan::where(['patient_id' => $patient_id, 'episode_id' => $anc_registration->episode_id])->first();
        return view('antenatal::ante_natal_clinic.antenatal_visit_details', compact('patient_id', 'episode_id', 'delivery_plan', 'anc_lies', 'anc_presentations', 'anc_positions', 'anc_engagements', 'visit_record_details', 'outcomes', 'patient', 'diagnoses'));
    }

    public function route()
    {
        /*
         * Check if a consultation is pending and then route it to edit page
         * If a consultation is completed, route to the view page
         */

        $patient_id = session()->get('patient_id');
        $episode_id = session()->get('episode_id');

        $existing_anc_registration = AnteNatalClinicRegistration::where(['patient_id' => $patient_id])->latest()->first();        
        session()->put('previous_action', 'anc_consultation_page');
        if ($existing_anc_registration) {
            $edd = Carbon::parse($existing_anc_registration->edd);
            $date_latest = $edd->addMonths(6);
            if (Carbon::now() > $date_latest) return self::create();
            else {
                switch ($existing_anc_registration->completed) {
                    case '0': // Pending
                        return self::edit($existing_anc_registration->id);
                        break;
                    case '1': // Completed
                        return self::show($existing_anc_registration->id);
                        break;
                    default: // Not created yet
                        return self::create();
                        break;
                }
            }            
        } else {
            return self::create();
        }
    }

    public function calculate_edd_from_lmp(Request $request)
    {
        $lmp_date = $request->lmp_date;
        $lmp_date = Carbon::createFromFormat('d/m/Y', $request->lmp_date);
        $edd = $lmp_date->addDays(280);
        $edd = $edd->toDateString();

        $date = date("d/m/Y", strtotime($edd));

        return response()->json($date);
    }

    public function calculate_woa_weeks_from_lmp(Request $request){
        $lmp_date = Carbon::createFromFormat('d/m/Y', $request->lmp_date);
        $now = Carbon::now();
        $days = $lmp_date->diffInDays($now);
        $weeks = floor($days / 7);
        $dayRemainder = $days % 7;
        $woa_weeks = $weeks.'<sup>'.$dayRemainder.'</sup>';
        return response()->json($woa_weeks);
    }

    public function add_uterus_operation(Request $request)
    {

        $referral_hospital = new UterusOperation;
        $referral_hospital->name = $request->name;
        $referral_hospital->created_by = Auth()->user()->id;

        if ($referral_hospital->save()) return $referral_hospital->id;
        else return 0;
    }

    public function add_family_planning_method(Request $request)
    {

        $method = new FamilyPlanningMethod;
        $method->name = $request->name;
        $method->created_by = Auth()->user()->id;

        if ($method->save()) return $method->id;
        else return 0;
    }

    public function add_gender_based_violence(Request $request)
    {

        $referral_hospital = new GenderViolence;
        $referral_hospital->name = $request->name;
        $referral_hospital->created_by = Auth()->user()->id;

        if ($referral_hospital->save()) return $referral_hospital->id;
        else return 0;
    }

    public function add_caesarian_section(Request $request)
    {

        $referral_hospital = new CaesarianSection();
        $referral_hospital->name = $request->name;
        $referral_hospital->created_by = Auth()->user()->id;

        if ($referral_hospital->save()) return $referral_hospital->id;
        else return 0;
    }

     /**
     * Display a listing of all ante natal visits.
     *
     * @return \Illuminate\Http\Response
     */
    public function previously_registered_pregnancy_anc_visits(Request $request)
    {
        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $patient = Patient::find($patient_id);
        $pregnancy_ids=unserialize($request->visits);
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();
        $documents = PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');

        $anc_followup_records = AnteNatalClinicFollowup::whereIn('id', $pregnancy_ids)->orderBy('created_at', 'desc')->get()->groupBy('ante_natal_clinic_registration_id');
        return view('antenatal::ante_natal_clinic.index_visits', compact('patient_id', 'patient', 'anc_followup_records', 'categories', 'marital_statuses', 'drug_categories', 'documents', 'known_patient_allergies', 'known_patient_alerts', 'drug_categories_array'));
    }

    public function antenatal_card(){
        $episode_id = session()->get('episode_id');// Get episode id from session
        $patient_id = session()->get('patient_id');// Get patient id from session
        $anc_registration_details = AnteNatalClinicRegistration::where([['patient_id', $patient_id], ['episode_id', $episode_id]])->first();
        if(empty($anc_registration_details)) {
            flash('No Pregnancy Registered for this episode.')->error();
            return redirect()->back();
        }
        $patient = Patient::where('patients.id',$patient_id)->leftJoin('districts','districts.id','district_id')->leftJoin('subcounties','subcounties.id','subcounty_id')->leftJoin('parishes','parishes.id','parish_id')->leftJoin('villages','villages.id','village_id')
        ->leftJoin('occupations','occupations.id','occupation_id')->leftJoin('family_relations','family_relations.id','next_of_kin_relationship')->leftJoin('marital_statuses','marital_statuses.id','marital_status')->leftJoin('religions','religions.id','religion_id')        
        ->first(['villages.name as village','districts.name as district','subcounties.name as subcounty','parishes.name as parish','occupations.name as occupation', 'family_relations.name as family_relation','marital_statuses.name as marital_status','religions.name as religion',
            'first_name', 'last_name', 'national_id','phone','date_of_birth','next_of_kin','phone_of_next_of_kin']);
        $mother_history = AntenatalMotherHistory::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();
        $family_planning_methods = FamilyPlanningMethod::orderBy('name', 'asc')->pluck("name", "id");
        $gender_based_violence = GenderViolence::orderBy('name', 'asc')->pluck("name", "id");
        $triage = Triage::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->first();
        $obstetric_history_details = ObstetricHistory::where(['patient_id' => $patient_id])->orderBy('obstetric_date', 'desc')->get();
        $hospitalInfo = DB::table('hospital_information')->find(1);
        $anc_visits = AnteNatalClinicFollowup::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        $latest_anc_visit = $anc_visits->last();
        $anc_presentations = AnteNatalClinicPresentation::pluck('name', 'id');
        $anc_lies = AnteNatalClinicLie::pluck('name', 'id');
        $anc_positions = AnteNatalClinicPosition::pluck('name', 'id');
        $users = DB::table('users')->pluck(DB::raw("CONCAT(first_name,' ',last_name) AS name"), 'id');
        $obs_scan_results = InvestigationResults::leftJoin('obstetric_ultrasound_reports as o','o.order_id','investigation_results.order_id')
            ->where(['patient_id'=>$patient_id, 'episode_id'=>$episode_id,'result_type'=>'Ultrasound_Obstetric', 'all_authenticated'=>1])
            ->select('o.*')->get();
        $treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->get();
        $dosage_frequencies = DB::table('dosage_frequencies')->pluck('name', 'id');
        $drugs =Drug::pluck('name', 'id');
        $malaria_investigations =Investigation::whereIn('hmis_002_slug', [2,3])->pluck('id')->toArray();
        $malaria_ids = $malaria_inv_result = '';
        foreach($malaria_investigations as $key => $malaria_investigation) {
            if($key == 0) $malaria_ids .= 'FIND_IN_SET('.$malaria_investigation.',investigation_id)'; 
            else $malaria_ids .= 'OR FIND_IN_SET('.$malaria_investigation.',investigation_id)'; 
        }       
        if(!empty( $malaria_ids)){
            $query = 'SELECT `id`, `investigation_id`, `value` FROM `investigation_results` WHERE `patient_id` = '.$patient_id.' AND `episode_id` = '.$episode_id.' AND `all_authenticated`= 1 AND `deleted_at` IS NULL AND ('.$malaria_ids.') ORDER BY `id` DESC LIMIT 1';
            $results = DB::select($query); 
            if(!empty($results[0])){
                $ids = explode(',', $results[0]->investigation_id);
                $values = explode(',', $results[0]->value);
                $id = array_search($malaria_investigation, $ids);
                $malaria_inv_result = strtolower($values[$id]);
            }
        }
        $results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->latest()->first();
        $data = ['patient', 'anc_registration_details', 'mother_history', 'family_planning_methods', 'gender_based_violence', 'triage', 
                  'obstetric_history_details', 'hospitalInfo', 'anc_visits', 'latest_anc_visit', 'anc_presentations', 'anc_lies', 'anc_positions', 
                  'users', 'obs_scan_results', 'treatments', 'dosage_frequencies', 'drugs', 'malaria_inv_result'];
        
        // return view('antenatal::ante_natal_clinic.anc_card', compact($data));
        
        $pdf = SnappyPDF::loadView('antenatal::ante_natal_clinic.anc_card', compact($data))
            ->setOrientation('portrait')
            ->setPaper('a4')
            ->setOption('margin-bottom', 5)
            ->setOption('margin-top', 5)
            ->setOption('footer-html', '<i>'.config('app.name').' - Printed On ' . streamline_date(date('Y-m-d')) . ' By ' . auth()->user()->first_name . " " . auth()->user()->last_name . '</i>');
        return $pdf->inline('ANC Card' . date(" d-m-y h:ia") . '.pdf');
    
        
    }

    private function getAncVisitData(){
        $episode_id = session()->get('episode_id');
        $patient_id = session()->get('patient_id');
        $patient = Patient::findOrFail($patient_id);
        $dob = new Carbon($patient->date_of_birth);
        $age_diff_months = $dob->diffInMonths(Carbon::now());
        $categories = DB::table('patient_categories')->pluck("name", "id");
        $diagnoses = DB::table('diagnoses')->whereNull('deleted_at')->orderBy('name', 'asc')->pluck("name", "id")->prepend('- select -', '');
        $marital_statuses = DB::table('marital_statuses')->pluck("name", "id");
        $drug_categories = DB::table('drug_categories')->get();        
        $symptoms = DB::table('symptoms')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        //select treatment
        $treatment = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->first();
        $documents = PatientDocument::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_allergies = Allergy::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $known_patient_alerts = Alert::where('patient_id', $patient_id)->orderBy('created_at', 'desc')->take(2)->get();
        $drug_categories_array = DB::table('drug_categories')->pluck('name', 'id');
        $wards = DB::table('wards')->whereNull('deleted_at')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $referrals = DB::table('referral_hospitals')->whereNull('deleted_at')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        //drop down values
        $anc_lies = AnteNatalClinicLie::pluck('name', 'id')->prepend('- select -', '');
        $anc_presentations = AnteNatalClinicPresentation::pluck('name', 'id')->prepend('- select -', '');
        $anc_positions = AnteNatalClinicPosition::pluck('name', 'id')->prepend('- select -', '');
        $anc_engagements = AnteNatalClinicEngagement::pluck('name', 'id')->prepend('- select -', '');
        $heart_regularity = HeartRegularity::pluck('name', 'id')->prepend('- select -', '');
        $symptoms = DB::table('symptoms')->orderBy('name')->pluck("name", "id")->toArray();
        $symptoms = ['' => '- select -'] + $symptoms;
        $outcomes = DB::table('outcomes')->whereNull('deleted_at')->orderBy('name')->pluck('name', 'id')->prepend('- select -', '');
        $anc_registration = AnteNatalClinicRegistration::where(['patient_id' => $patient_id])->orderBy('id', 'desc')->first();
        $delivery_plan = AncDeliveryPlan::where(['patient_id' => $patient_id, 'episode_id' => $anc_registration->episode_id])->first();
        $triage = Triage::where(['patient_id' => $patient_id, 'episode_id' => $anc_registration->episode_id])->first();
        $obs_scan_results = InvestigationResults::leftJoin('obstetric_ultrasound_reports as o','o.order_id','investigation_results.order_id')
            ->where(['patient_id'=>$patient_id, 'episode_id'=>$anc_registration->episode_id,'result_type'=>'Ultrasound_Obstetric', 'all_authenticated'=>1])
            ->latest('o.created_at')->first(['expected_delivery_date', 'average_gestational_age', 'o.id']);

        //check if there exists anc visit records of this episode already
        $anc_visit_records = AnteNatalClinicFollowup::where(['episode_id' => $episode_id, 'completion_status' => 1])->get();
        $obstetric_history_details = ObstetricHistory::where(['patient_id' => $patient_id])->orderBy('obstetric_date', 'desc')->get();

        $clinics = Clinic::orderBy('name')->pluck("name", "id")->toArray();
        $clinics = ['0' => "Don't assign clinic"] + $clinics;
        $users = \Streamline\Models\User::orderBy('first_name')->select("id", "first_name", "last_name")->get();

        /* episode details */
        $episode = PatientEpisode::where('id', $episode_id)->first();
        /* get treatment */
        $treatments = Treatment::where(['patient_id' => $patient_id, 'episode_id' => $episode_id, 'tta' => 0])->get();
        /* get ordered procedures */
        $ordered_procedures = OrderedProcedure::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for ordered investigations,procedures and treatment
        $ordered_investigations = OrderedInvestigation::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        /* get ordered sundries */
        $ordered_sundries = OrderedSundry::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        //check for authenticated investigations
        $investigation_results = InvestigationResults::where(['patient_id' => $patient_id, 'episode_id' => $episode_id])->get();
        $diagnoses_all = DB::table('diagnoses')->select('id', 'prompts', 'reference_areas', 'reference_names')->get();
        $hmis_categories = DB::table('hmis_categories')->orderBy('title', 'asc')->pluck('title', 'id')->toArray();
        $hmis_categories = ['' => '- select -'] + $hmis_categories;

        $inpatient_info = InpatientInfo::where('patient_id', $patient_id)->where('discharged', 0)->count();
        $visit_data = [
            'episode_id' => $episode_id,
            'patient_id' => $patient_id,
            'patient' => $patient,
            'age_diff_months' => $age_diff_months,
            'categories' => $categories,
            'diagnoses' => $diagnoses,
            'marital_statuses' => $marital_statuses,
            'drug_categories' => $drug_categories,
            'symptoms' => $symptoms,
            'outcomes' => $outcomes,
            'anc_registration' => $anc_registration,
            'delivery_plan' => $delivery_plan,
            'triage' => $triage,
            'obs_scan_results' => $obs_scan_results,
            'known_patient_allergies' => $known_patient_allergies,
            'known_patient_alerts' => $known_patient_alerts,
            'drug_categories_array' => $drug_categories_array,
            'wards' => $wards,
            'referrals' => $referrals,
            'anc_lies' => $anc_lies,
            'anc_presentations' => $anc_presentations,
            'anc_positions' => $anc_positions,
            'anc_engagements' => $anc_engagements,
            'heart_regularity' => $heart_regularity,
            'diagnoses_all' => $diagnoses_all,
            'hmis_categories' => $hmis_categories,
            'inpatient_info' => $inpatient_info,
            'treatment' => $treatment,
            'documents' => $documents,
            'ordered_procedures' => $ordered_procedures,
            'ordered_investigations' => $ordered_investigations,
            'ordered_sundries' => $ordered_sundries,
            'investigation_results' => $investigation_results,
            'clinics' => $clinics,
            'users' => $users,
            'episode' => $episode,
            'treatments' => $treatments,
            'anc_visit_records' => $anc_visit_records,
            'obstetric_history_details' => $obstetric_history_details,
            'outcomes' => $outcomes,

        ];

        return $visit_data;
    }
}