<?php

namespace Modules\ClinicalData\Http\Controllers;

use Carbon\Carbon;
use Illuminate\Http\Request;
use Streamline\Models\AccountType;
use Streamline\Models\Banking;
use Streamline\Models\ChartOfAccount;
use Streamline\Models\ChartOfAccountSlug;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Auth;
use Illuminate\Database\QueryException;
use Streamline\Models\TrackReceipt;

class ChartOfAccountController extends Controller {

    public function __construct() {
        $this->middleware('auth');
        $this->middleware('permission:chart-of-accounts-list', ['only' => ['index']]);
        $this->middleware('permission:create-chart-of-accounts', ['only' => ['create','store','edit','update']]);
        $this->middleware('permission:view-chart-of-account-details', ['only' => ['show']]);
        $this->middleware('permission:activate-chart-of-accounts', ['only' => ['activate']]);
        $this->middleware('permission:de-activate-chart-of-accounts', ['only' => ['inactive']]);
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index() {
        $chart_of_accounts = ChartOfAccount::orderBy('name', 'asc')->get();

        $chart_of_accounts_list = ChartOfAccount::orderBy('name', 'asc')
                ->pluck('name', 'id');

        $account_types = DB::table('account_types')
                ->orderBy('name', 'asc')
                ->pluck('name', 'id');
        
        return view('clinical_data::chart_of_accounts.index', compact('chart_of_accounts', 'chart_of_accounts_list', 'account_types'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create() {
        $chart_of_accounts_list = ChartOfAccount::orderBy('name', 'asc')
                ->pluck('name', 'id')
                ->toArray();
        $chart_of_accounts_list = ['' => '- select -'] + $chart_of_accounts_list;

        $account_types = AccountType::orderBy('name', 'asc')->pluck('name', 'id')->toArray();

        $coa_slugs = ChartOfAccountSlug::orderBy('name', 'asc')->pluck('name', 'id')->toArray();
        $slugs = [];
        $slugs = [" " => "- Select -"];
        foreach ($coa_slugs as $key => $value) {
            $slug_item = str_replace("_", " ", $value);
            $slugs[$value] = $slug_item;
        }

        return view('clinical_data::chart_of_accounts.create', compact('chart_of_accounts_list', 'account_types', 'slugs'));
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request) {
        $validator = Validator::make($request->all(), [
                    'name' => 'required'
        ]);

        if ($validator->fails()) {
            //validation failed
            $string = "";
            foreach ($validator->errors()->getMessages() as $item) {
                $string .= "{$item[0]}<br>";
            }
            flash($string)->error();
            return back()->withErrors($validator)->withInput();
        } else {

            //validation passed
            $chart_of_account = new ChartOfAccount;
            $logged_in_user_id = Auth::user()->id;

            $chart_of_account->name = $request->name;
            $chart_of_account->type = $request->type;
            $chart_of_account->description = $request->description;
            $chart_of_account->sub_account_of = $request->sub_account_of;
            $chart_of_account->balance = $request->balance ? $request->balance : 0;
            $chart_of_account->slug = str_replace(" ", "_", strtolower($chart_of_account->name));
            $chart_of_account->core = $request->core;
            $chart_of_account->created_by = $logged_in_user_id;
            $chart_of_account->updated_by = $logged_in_user_id;

            try {

                $chart_of_account->save();

                $trans_id = generateReceiptNumberFromDB('Initial Bank Deposit');

                if($request->type == '4'){
                    capture_bank_record('DEPOSIT', Carbon::parse($request->opening_balance_date)->toDateTimeString(), $chart_of_account->id, 'Initial Deposit', ($request->opening_balance ? $request->opening_balance : 0),
                        ($request->opening_balance ? $request->opening_balance : 0), 0, 'Initial Deposit', $trans_id);
                    /* capture_bank_record('DEPOSIT', Carbon::parse($current_balance_date=0)->toDateTimeString(), $chart_of_account->id, 'Current Balance', ($request->opening_balance ? $request->opening_balance : 0),
                        ($request->opening_balance ? $request->opening_balance : 0), 0, 'Current Balance', $trans_id_2); */
                }

                flash($request->name . " Chart of Account has been saved")->success();
                return redirect("/chart_of_accounts/");
            } catch (QueryException $e) {
                flash("An error occurred")->error();
                return back()->withInput();
            }
        }
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id) {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id) {
        $chart_of_account = ChartOfAccount::where('id', $id)->first();

        $chart_of_accounts_list = ChartOfAccount::orderBy('name', 'asc')
                ->pluck('name', 'id')
                ->toArray();
        $chart_of_accounts_list = ['' => '- select -'] + $chart_of_accounts_list;

        $account_types = AccountType::orderBy('name', 'asc')
                ->pluck('name', 'id')
                ->toArray();
        $account_types = ['' => '- select -'] + $account_types;

        $coa_slugs = ChartOfAccountSlug::orderBy('name', 'asc')->pluck('name', 'id')->toArray();
        $slugs = [" " => "- Select -"];
        foreach ($coa_slugs as $key => $value) {
            $slug_item = str_replace("_", " ", $value);
            $slugs[$value] = $slug_item;
        }

        if (!$chart_of_account) {
            flash()->error("Chart of Account not found");
            return redirect('/chart_of_accounts/');
        } else {
            return view('clinical_data::chart_of_accounts.edit', compact('chart_of_account', 'chart_of_accounts_list', 'account_types', 'slugs'));
        }
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id) {

        $validator = Validator::make($request->all(), [
                    'name' => 'required'
        ]);

        if ($validator->fails()) {
            //validation failed

            $string = "";

            foreach ($validator->errors()->getMessages() as $item) {
                $string .= "{$item[0]}<br>";
            }

            return back()->withErrors($validator)->withInput();
        } else {
            //validation passed
            $chart_of_account = ChartOfAccount::find($id);
            $logged_in_user_id = Auth::user()->id;

            $chart_of_account->name = $request->name;
            $chart_of_account->type = $request->type ?? $chart_of_account->type;
            $chart_of_account->description = $request->description;
            $chart_of_account->sub_account_of = $request->sub_account_of ?? NULL;
            $chart_of_account->balance = $request->balance;
            $chart_of_account->core = $request->core ?? $chart_of_account->core;
            $chart_of_account->updated_by = $logged_in_user_id; 
            if (!is_null($request->slug)) {
                $chart_of_account->slug = $request->slug;
            }

            try {
                $initial_transaction = Banking::where(['bank' => $id, 'memo' => 'Initial Deposit'])
                ->update([
                    'account_balance' => $request->balance
                ]); 
            }catch (QueryException $_e){
                flash('Failed To Update Opening Bank Balance.')->error();
            }
            
            try {
                $chart_of_account->save();
                flash($request->name . " Chart of Account has been updated")->success();
                return redirect("/chart_of_accounts/");
            } catch (QueryException $e) {
                flash("An error occurred")->error();
                return back()->withInput();
            }
        }
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id) {
        $undeletable_core_chart_of_accounts = [];
        //check if the account is a core before allowing deletion
        $undeletable_core_chart_of_accounts = ChartOfAccount::where('core',1)->orderBy('id', 'asc')->pluck('id')->toArray();
        if (in_array($id, $undeletable_core_chart_of_accounts)) {
            flash('You can not delete this chart of accounts. It is a core chart of account used by the system')->error();
            return redirect()->back();
        }

        //check if the account has any attached transaction without and not delete it
        //Table to check 1. banking, 2. Quotations, 3.payments, 4.patient_category_invoices 
        //maybe checking many tables isn't the best idea. 

        $chart_of_account = ChartOfAccount::find($id);

        if ($chart_of_account->delete()):
            flash("Chart of Account has been deleted.")->success();
            return redirect('/chart_of_accounts/');
        endif;
    }

    /**
     * Display a listing of the inactive resource(s).
     *
     * @return \Illuminate\Http\Response
     */
    public function inactive() {
        $chart_of_accounts = ChartOfAccount::onlyTrashed()
                ->orderBy('name', 'asc')
                ->get();

        $chart_of_accounts_list = ChartOfAccount::onlyTrashed()
            ->orderBy('name', 'asc')
            ->pluck('name', 'id');

        $account_types = AccountType::orderBy('name', 'asc')
                ->pluck('name', 'id');

        if (count($chart_of_accounts) < 1) {
            flash()->error("There is no inactive chart_of_account");
            return redirect('/chart_of_accounts/');
        } else {
//            Log::info($chart_of_accounts);
            return view('clinical_data::chart_of_accounts.inactive', compact('chart_of_accounts', 'chart_of_accounts_list', 'account_types'));
        }
    }

    /**
     * Activate the specified resource in storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function activate($id) {
        $chart_of_account = ChartOfAccount::withTrashed()->find($id);

        if ($chart_of_account->restore()):
            flash("Chart of Account has been activated.")->success();
            return redirect('/chart_of_accounts/inactive');
        endif;
    }

}