<?php

namespace Modules\Finance\Http\Controllers;

use Carbon\Carbon;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Streamline\Models\ChartOfAccount;
use Streamline\Models\HospitalInformation;
use Streamline\Models\Patient;
use Streamline\Models\PatientEpisode;
use Streamline\Models\PaymentItem;
use Streamline\Models\StreamlineBillReport;

class StreamlineBillsController extends Controller
{
    public function __construct() {
        $this->middleware('auth');
        $this->middleware('permission:streamline-bills-create');
        $this->middleware('permission:streamline-bills-index');
    }

    public function index(){
        $reports = StreamlineBillReport::all();
        $hospital_information = HospitalInformation::first();
        return view('finance::streamline_bills.index', compact('reports', 'hospital_information'));
    }

    public function create(Request $request)
    {
        $episodes = [];
        $patients = [];
        $user = Auth::id();
        $date_string = '';
        $patient_string = '';
        $report = new StreamlineBillReport;
        $hospital_information = HospitalInformation::first();

        return view('finance::streamline_bills.create', compact( 'hospital_information','user', 'episodes', 'patients', 'date_string',
            'patient_string', 'patients'));
    }

    public function detail($id)
    {
        $user = Auth::id();
        $report = StreamlineBillReport::where('id', $id)->first();
        $hospital_information = HospitalInformation::first();

        return view('finance::streamline_bills.detail', compact( 'hospital_information', 'report', 'user'));
    }

    public function generate(Request $request){
        $user = Auth::id();
        $patients = [];
        $report = new StreamlineBillReport;
        $hospital_information = HospitalInformation::first();

        if($request->dates == "yesterday") {
            $start = Carbon::yesterday()->startOfDay()->toDateTimeString();
            $end = Carbon::yesterday()->endOfDay()->toDateTimeString();
        } else if($request->dates == "custom_date") {
            $start = Carbon::parse($request->start_date)->startOfDay()->toDateTimeString();
            $end = Carbon::parse($request->start_date)->endOfDay()->toDateTimeString();
        } else if($request->dates == "custom_date_range") {
            $start = Carbon::parse($request->start_date)->startOfDay()->toDateTimeString();
            $end = Carbon::parse($request->end_date)->endOfDay()->toDateTimeString();
        } else {
            $start = Carbon::today()->startOfDay()->toDateTimeString();
            $end = Carbon::today()->endOfDay()->toDateTimeString();
        }

        $dates = array($start, $end);
        $date_string = implode('&', $dates);
        $episodes = PatientEpisode::whereBetween('created_at', [$start, $end])->groupBy('patient_id')->get();
        foreach ($episodes as $item){
            $patient = Patient::where('id', $item->patient_id)->whereNotIn('id', findTestOrDemoPatients())->whereBetween('created_at', [$start, $end])->first();
            if(isset($patient->number)){
                array_push($patients, $patient->id);
            }
        }

        $patient_string = implode('/', $patients);
        $report_check = StreamlineBillReport::where('patients', '=', $patient_string)->first();
        if($report_check === null){
            $report->patients = $patient_string;
            $report->time_frame = $date_string;
            $report->type = 3;
            $report->created_by = Auth::id();
            $report->save();
        }

        return view('finance::streamline_bills.create', compact( 'hospital_information','user', 'dates',
            'episodes', 'request', 'patients', 'date_string', 'patient_string'));
    }

    public function transfer(Request $request){

        $result = StreamlineBillReport::where('patients', $request->patient_string)->update([
            'amount_to_be_paid'=>$request->total,
            'amount_paid'=>0
        ]);

        $current_balance = ChartOfAccount::where('id', 14)->pluck('balance')->first();
        $transfer = ChartOfAccount::where('id', 14)->update(['balance' => ((int)$request->total + $current_balance)]);
        $total_amount_transfer = ((int)$request->total);
        $deposit_on_item = PaymentItem::where('name', 'streamline bill')->update(['unit_cost'=> $total_amount_transfer]);

        if($transfer == 1 && $deposit_on_item == 1){
            flash('Streamline Bill Transfer was Successful')->success();
        }else{
            flash('Streamline Bill Transfer Failed')->error();
        }

        return redirect('/streamline_bill');
    }

    public function view_patients(Request $request){
        $patients_string = StreamlineBillReport::where('id', $request->id)->pluck('patients')->first();
        $patients = explode("/", $patients_string);
        $display = "";
        foreach ($patients as $patient){
            $display .= "<li>".get_full_name($patient, 'id', 'first_name', 'last_name', 'patients')."</li>";
        }
        return $display;
    }

    public function delete($id){
        $streamline_bill = StreamlineBillReport::find($id);

        if ($streamline_bill->delete()):
            flash("Streamline Bill has been deleted.")->success();
            return redirect('/streamline_bill/');
        endif;
    }

    public function verify_patients($patient_id){
        $reports = StreamlineBillReport::all();
        foreach($reports as $item){
            $patient_array = explode('/', $item['patients']);
            for($i = 0; $i < count($patient_array); $i++){
                if($patient_array[$i] == $patient_id){
                    return null;
                }
                else{
                    return $patient_id;
                }
            }
        }
    }
}