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<?php

namespace App\Http\Controllers\hrm;

use App\Http\Controllers\Controller;
use App\Models\Account;
use App\Models\Employee;
use App\Models\PaymentMethod;
use App\Models\Payroll;
use Carbon\Carbon;
use DB;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class PayrollController extends Controller
{
    // ----------- GET ALL Holidays --------------\\

    public function index(Request $request)
    {
        $this->authorizeForUser($request->user('api'), 'view', Payroll::class);

        // How many items do you want to display.
        $perPage = $request->limit;
        $pageStart = \Request::get('page', 1);
        // Start displaying items from this number;
        $offSet = ($pageStart * $perPage) - $perPage;
        $order = $request->SortField;
        $dir = $request->SortType;
        $data = [];

        $payrolls = Payroll::with('account', 'employee')->where('deleted_at', '=', null)

        // Search With Multiple Param
            ->where(function ($query) use ($request) {
                return $query->when($request->filled('search'), function ($query) use ($request) {
                    return $query->where('Ref', 'LIKE', "%{$request->search}%")
                        ->orWhere(function ($query) use ($request) {
                            return $query->whereHas('account', function ($q) use ($request) {
                                $q->where('account_name', 'LIKE', "%{$request->search}%");
                            });
                        })
                        ->orWhere(function ($query) use ($request) {
                            return $query->whereHas('employee', function ($q) use ($request) {
                                $q->where('username', 'LIKE', "%{$request->search}%");
                            });
                        });
                });
            });
        $totalRows = $payrolls->count();
        if ($perPage == '-1') {
            $perPage = $totalRows;
        }
        $payrolls_data = $payrolls->offset($offSet)
            ->limit($perPage)
            ->orderBy($order, $dir)
            ->get();

        foreach ($payrolls_data as $payroll) {

            $item['id'] = $payroll->id;
            $item['Ref'] = $payroll->Ref;
            $item['account_id'] = $payroll->account_id;
            $item['employee_id'] = $payroll->employee_id;
            $item['account_name'] = $payroll['account'] ? $payroll['account']->account_name : '---';
            $item['employee_name'] = $payroll['employee']->username;
            $item['date'] = $payroll->date;
            $item['amount'] = $payroll->amount;
            $item['payment_method_id'] = $payroll->payment_method_id;
            $item['payment_status'] = $payroll->payment_status;

            $data[] = $item;
        }

        $accounts = Account::where('deleted_at', '=', null)->orderBy('id', 'desc')->get(['id', 'account_name']);
        $employees = Employee::where('deleted_at', '=', null)->orderBy('id', 'desc')->get(['id', 'username']);
        $payment_methods = PaymentMethod::where('deleted_at', '=', null)->get(['id', 'name']);

        return response()->json([
            'payrolls' => $data,
            'totalRows' => $totalRows,
            'accounts' => $accounts,
            'employees' => $employees,
            'payment_methods' => $payment_methods,
        ]);
    }

    public function create(Request $request)
    {
        //
    }

    // ----------- Store new Payroll --------------\\

    public function store(Request $request)
    {
        $this->authorizeForUser($request->user('api'), 'create', Payroll::class);

        request()->validate([
            'date' => 'required',
            'employee_id' => 'required',
            'amount' => 'required',
            'payment_method_id' => 'required',
        ]);

        \DB::transaction(function () use ($request) {

            Payroll::create([
                'user_id' => Auth::user()->id,
                'Ref' => $this->getNumberOrder(),
                'date' => $request['date'],
                'employee_id' => $request['employee_id'],
                'account_id' => $request['account_id'] ? $request['account_id'] : null,
                'amount' => $request['amount'],
                'payment_method_id' => $request['payment_method_id'],
                'payment_status' => 'paid',
            ]);

            $account = Account::where('id', $request['account_id'])->exists();

            if ($account) {
                // Account exists, perform the update
                $account = Account::find($request['account_id']);
                $account->update([
                    'balance' => $account->balance - $request['amount'],
                ]);
            }

        }, 10);

        return response()->json(['success' => true]);
    }

    // ------------ function show -----------\\

    public function show($id)
    {
        //

    }

    public function edit(Request $request, $id)
    {
        //

    }

    // -----------Update Payroll --------------\\

    public function update(Request $request, $id)
    {
        $this->authorizeForUser($request->user('api'), 'update', Payroll::class);

        request()->validate([
            'date' => 'required',
            'employee_id' => 'required',
            'amount' => 'required',
            'payment_method_id' => 'required',
        ]);

        \DB::transaction(function () use ($id, $request) {

            $payroll = Payroll::findOrFail($id);

            // delete old balance
            $account = Account::where('id', $payroll->account_id)->exists();

            if ($account) {
                // Account exists, perform the update
                $account = Account::find($payroll->account_id);
                $account->update([
                    'balance' => $account->balance + $payroll->amount,
                ]);
            }

            Payroll::whereId($id)->update([
                'date' => $request['date'],
                'employee_id' => $request['employee_id'],
                'account_id' => $request['account_id'] ? $request['account_id'] : null,
                'amount' => $request['amount'],
                'payment_method_id' => $request['payment_method_id'],
            ]);

            // update new account
            $new_account = Account::where('id', $request['account_id'])->exists();

            if ($new_account) {
                // Account exists, perform the update
                $new_account = Account::find($request['account_id']);
                $new_account->update([
                    'balance' => $new_account->balance - $request['amount'],
                ]);
            }

        }, 10);

        return response()->json(['success' => true]);
    }

    // ----------- Delete  Payroll --------------\\

    public function destroy(Request $request, $id)
    {
        $this->authorizeForUser($request->user('api'), 'delete', Payroll::class);
        \DB::transaction(function () use ($id) {
            $payroll = Payroll::findOrFail($id);

            Payroll::whereId($id)->update([
                'deleted_at' => Carbon::now(),
            ]);

            $account = Account::where('id', $payroll->account_id)->exists();

            if ($account) {
                // Account exists, perform the update
                $account = Account::find($payroll->account_id);
                $account->update([
                    'balance' => $account->balance + $payroll->amount,
                ]);
            }

        }, 10);

        return response()->json(['success' => true]);
    }

    // ------------ Reference Number of Adjustement  -----------\\

    public function getNumberOrder()
    {

        $last = DB::table('payrolls')->latest('id')->first();

        if ($last) {
            $item = $last->Ref;
            $nwMsg = explode('_', $item);
            $inMsg = $nwMsg[1] + 1;
            $code = $nwMsg[0].'_'.$inMsg;
        } else {
            $code = 'PS_1';
        }

        return $code;

    }
}
