<?php

namespace Modules\Payroll\Http\Controllers;

use Barryvdh\Snappy\Facades\SnappyPdf;
use Carbon\Carbon;
use Illuminate\Database\QueryException;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Streamline\Models\ChartOfAccount;
use Streamline\Models\PayrollAllowancesOrDeduction;
use Streamline\Models\PayrollCategory;
use Streamline\Models\PayrollSchedule;

class PayrollScheduleController extends Controller {
    public function index() {
        $schedules = PayrollSchedule::get();

        return view('payroll::payroll_schedule.index', compact('schedules'));
    }

    public function create(Request $request) {
        $employees = [];

        if (isset($request->payroll_category)) {
            if ($request->payroll_category == 0) {
                $employees = DB::table('payrolls')
                    ->join('patients', 'payrolls.patient_id', '=', 'patients.id')
                    ->get(['payrolls.*', 'patients.first_name', 'patients.last_name', 'patients.number']);
            } else {
                $employees = DB::table('payrolls')
                    ->join('patients', 'payrolls.patient_id', '=', 'patients.id')
                    ->where('payroll_category', $request->payroll_category)
                    ->get(['payrolls.*', 'patients.first_name', 'patients.last_name', 'patients.number']);
            }
        }

        $months = array(
            '-select-', 'January' => 'January', 'February' => 'February', 'March' => 'March',
            'April' => 'April', 'May' => 'May', 'June' => 'June', 'July' => 'July',
            'August' => 'August', 'September' => 'September', 'October' => 'October',
            'November' => 'November', 'December' => 'December'
        );

        $years = ['' => '-select-'];

        $end_year = date('Y');
        $start_year = $end_year - 10;

        // create array with all the years in between
        $years_range = range($end_year, $start_year);

        // add to years array to be returned to view
        foreach ($years_range as $year) {
            $years[$year] = $year;
        }

        $payroll_categories = PayrollCategory::pluck('name', 'id')->toArray();
        $payroll_categories = [0 => 'All Categories'] + $payroll_categories;

        $expense_accounts = ChartOfAccount::where('type', 2)->pluck('name', 'id')->toArray();
        $expense_accounts = ['' => '- select -'] + $expense_accounts;

        $payable_accounts = ChartOfAccount::whereIn('type', [6, 9])->pluck('name', 'id')->toArray();
        $payable_accounts = ['' => '- select -'] + $payable_accounts;

        return view('payroll::payroll_schedule.create', compact('employees', 'years', 'months', 'payroll_categories', 'expense_accounts', 'payable_accounts'));
    }

    public function save_schedule(Request $request) {
        request()->validate([
            'name' => 'required',
            'pay_year' => 'required',
            'pay_month' => 'required',
            'due_date' => 'required',
            'employee_id' => 'required'
        ]);

        $logged_in_user_id = Auth::user()->id;

        $basic_pay_arr = $request->basic_pay;
        $allowance_arr = $request->allowance;
        $gross_pay_arr = $request->gross_pay;
        $tax_arr = $request->tax;
        $social_security_arr = $request->social_security;
        $deductions_arr = $request->deductions;
        $total_deductions_arr = $request->total_deductions;
        $net_pay_arr = $request->net_pay;
        $employee_id_arr = $request->employee_id;
        $payroll_category_arr = $request->payroll_category;
        $allow_deduct_ids_arr = array_merge($request->allowances_arr, $request->deductions_arr);

        foreach ($allow_deduct_ids_arr as $records) {
            if ($records) {
                $exploded_records = explode(",", $records);
                foreach ($exploded_records as $record) {
                    $allow_deduct = DB::table('payroll_allowances_or_deductions')->where('id',  $record)->first();

                    $are_dates_past = !$allow_deduct->recurring_final_date || Carbon::today()->isAfter(Carbon::createFromFormat('Y-m-d', $allow_deduct->recurring_final_date));

                    if ($allow_deduct && ($allow_deduct->recurring == 0 || $are_dates_past)) {
                        DB::table('payroll_allowances_or_deductions')->where('id',  $record)->update(['billed' => 1]);
                    }
                }
            }
        }

        $schedule = new PayrollSchedule();

        $schedule->name = $request->name;
        $schedule->pay_year = $request->pay_year;
        $schedule->pay_month = $request->pay_month;
        $schedule->salaries_expense_account = $request->salaries_expense_account;
        $schedule->salaries_payable_account = $request->salaries_payable_account;
        $schedule->tax_expense_account = $request->tax_expense_account;
        $schedule->tax_payable_account = $request->tax_payable_account;
        $schedule->due_date = Carbon::createFromFormat('d/m/Y', $request->due_date)->toDateString();
        $schedule->social_security_expense_account = $request->social_security_expense_account;
        $schedule->social_security_payable_account = $request->social_security_payable_account;
        $schedule->memo = $request->memo;
        $schedule->employee_id = implode(',', $employee_id_arr);
        $schedule->payroll_category = implode(',', $payroll_category_arr);
        $schedule->basic_pay = implode(',', $basic_pay_arr);
        $schedule->allowances = implode(',', $allowance_arr);
        $schedule->gross_pay = implode(',', $gross_pay_arr);
        $schedule->tax_amount = implode(',', $tax_arr);
        $schedule->social_security_amount = implode(',', $social_security_arr);
        $schedule->deductions = implode(',', $deductions_arr);
        $schedule->total_deductions = implode(',', $total_deductions_arr);
        $schedule->net_pay = implode(',', $net_pay_arr);
        $schedule->created_by = $logged_in_user_id;
        $schedule->updated_by = $logged_in_user_id;

        try {
            $schedule->save();
            flash("Payroll Schedule has been saved")->success();
            return redirect("/payroll_schedules/index");
        } catch (QueryException $e) {
            flash('An error occurred. Please try again later')->error();
            return back()->withInput();
        }
    }

    public function get_allowance_deductions_details(Request $request) {
        $items = explode(',', $request->ids);
        $records = PayrollAllowancesOrDeduction::whereIn('id', $items)->get();
        $html = '';

        foreach ($records as $record) {
            $html .= "<tr>";

            if($record->type == 0) {
                $html .= '<td>' . __('payroll.allowance') . '</td>';
            } else {
                $html .= '<td>' . __('payroll.deduction') . '</td>';
            }

            $html .= '<td>' . ugandan_shillings($record->amount) . '</td>';
            $html .= '<td>' . ($record->recurring == 0 ? 'No' : 'Yes') . '</td>';
            $html .= '<td>' . ($record->recurring_final_date ? streamline_date($record->recurring_final_date) : 'N/A') . '</td>';
            $html .= '<td>' . $record->reason . '</td>';
            $html .= '<td>' . get_full_name($record->created_by, 'id', 'first_name', 'last_name', 'users') . '</td>';
            $html .= '<td>' . streamline_date_time($record->created_at) . '</td>';

            $html .= "</tr>";
        }

        return $html;
    }

    public function details($id) {
        $schedule = PayrollSchedule::find($id);

        $payroll_categories = PayrollCategory::pluck('name', 'id')->toArray();
        $expense_accounts = ChartOfAccount::where('type', 2)->pluck('name', 'id')->toArray();
        $payable_accounts = ChartOfAccount::whereIn('type', [6, 9])->pluck('name', 'id')->toArray();

        return view('payroll::payroll_schedule.details', compact('schedule', 'payroll_categories', 'payable_accounts', 'expense_accounts'));
    }

    public function print_details($id) {
        $schedule = PayrollSchedule::find($id);

        $payroll_categories = PayrollCategory::pluck('name', 'id')->toArray();
        $expense_accounts = ChartOfAccount::where('type', 2)->pluck('name', 'id')->toArray();
        $payable_accounts = ChartOfAccount::whereIn('type', [6, 9])->pluck('name', 'id')->toArray();

        $data = [
            'schedule' => $schedule,
            'payroll_categories' => $payroll_categories,
            'expense_accounts' => $expense_accounts,
            'payable_accounts' => $payable_accounts,
        ];

        $pdf = SnappyPDF::loadView("payroll_schedule.print_details", $data)
            ->setOrientation('portrait')
            ->setPaper('a4')
            ->setOption('margin-bottom', 5)
            ->setOption('margin-top', 5)
            ->setOption('footer-html', '<i>Printed On  ' . date('d-M-Y  h:ia') . '</i>');

        return $pdf->inline('Payroll Schedule Details.pdf');
    }
}