<?php

namespace App\Http\Controllers\Parking\Operasional;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Symfony\Component\HttpFoundation\StreamedResponse;

class TransaksiParkirController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return view ('operasional.transaksi-parkir');
    }

    /**
     * Data transaksi parkir dengan filter pencarian.
     *
     * Filter (semua opsional):
     * - field: id | no_pol | no_barcode, + q: kata kunci
     * - tgl_awal / tgl_akhir (Y-m-d): periode kolom tanggal
     * - status_kendaraan: 1 = masuk, 0 = keluar
     * - status_transaksi: 0 = casual, 3 = member, 32 = denda
     * - export=csv: unduh hasil filter sebagai CSV
     */
    public function data(Request $request)
    {
        $request->validate([
            'field' => 'nullable|in:id,no_pol,no_barcode',
            'q' => 'nullable|string|max:100',
            'tgl_awal' => 'nullable|date_format:Y-m-d',
            'tgl_akhir' => 'nullable|date_format:Y-m-d|after_or_equal:tgl_awal',
            'status_kendaraan' => 'nullable|in:0,1',
            'status_transaksi' => 'nullable|in:0,3,32',
            'per_page' => 'nullable|integer|min:1|max:500',
        ]);

        $query = $this->filteredQuery($request);

        if ($request->query('export') === 'csv') {
            return $this->exportCsv($query);
        }

        $perPage = (int) $request->input('per_page', 50);
        $rows = $query->paginate($perPage);

        return response()->json([
            'status' => true,
            'data' => $rows->items(),
            'meta' => [
                'current_page' => $rows->currentPage(),
                'per_page' => $rows->perPage(),
                'total' => $rows->total(),
                'last_page' => $rows->lastPage(),
            ],
        ]);
    }

    protected function filteredQuery(Request $request)
    {
        $query = DB::table('transaksi_parkir as tp')
            ->leftJoin('jenis_mobil as jm', 'jm.id', '=', 'tp.id_kendaraan')
            ->select(
                'tp.id',
                'tp.no_pol',
                'tp.no_barcode',
                'tp.id_kendaraan',
                'jm.nama as nama_kendaraan',
                'tp.status',
                'tp.status_transaksi',
                'tp.waktu_masuk',
                'tp.waktu_keluar',
                'tp.tanggal'
            );

        // 1. Pencarian: id / no_pol / no_barcode
        if ($request->filled('q')) {
            $field = $request->input('field', 'id');
            $query->where("tp.{$field}", 'ILIKE', '%' . $request->input('q') . '%');
        }

        // 2. Periode awal - akhir (kolom tanggal)
        if ($request->filled('tgl_awal')) {
            $query->whereDate('tp.tanggal', '>=', $request->input('tgl_awal'));
        }
        if ($request->filled('tgl_akhir')) {
            $query->whereDate('tp.tanggal', '<=', $request->input('tgl_akhir'));
        }

        // 3. Status kendaraan: 1 = masuk, 0 = keluar
        if ($request->filled('status_kendaraan')) {
            $query->where('tp.status', (int) $request->input('status_kendaraan'));
        }

        // 4. Status transaksi: 0 = casual, 3 = member, 32 = denda
        if ($request->filled('status_transaksi')) {
            $query->where('tp.status_transaksi', (int) $request->input('status_transaksi'));
        }

        return $query->orderBy('tp.tanggal', 'desc');
    }

    protected function exportCsv($query): StreamedResponse
    {
        $filename = 'transaksi-parkir-' . now()->format('Ymd-His') . '.csv';

        return response()->streamDownload(function () use ($query) {
            $out = fopen('php://output', 'w');
            fputcsv($out, ['ID', 'No. Pol', 'Barcode', 'Kendaraan', 'Status Kendaraan', 'Status Transaksi', 'Waktu Masuk', 'Waktu Keluar']);
            $query->chunk(1000, function ($rows) use ($out) {
                foreach ($rows as $r) {
                    fputcsv($out, [
                        $r->id,
                        $r->no_pol,
                        $r->no_barcode,
                        trim(($r->id_kendaraan ?? '') . ' ' . ($r->nama_kendaraan ?? '')),
                        $r->status,
                        $r->status_transaksi,
                        $r->waktu_masuk,
                        $r->waktu_keluar,
                    ]);
                }
            });
            fclose($out);
        }, $filename, ['Content-Type' => 'text/csv']);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

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

    /**
     * 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)
    {
        //
    }

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

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