<?php

namespace App\Http\Controllers\Pelaporan\AL;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Pelaporan;
use App\Models\Ipal;
use App\Models\IpalParameter;
use App\Models\HasilUjiAL;
use App\Models\LampiranAL;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\File;
use Carbon\Carbon;

/**
 * Controller untuk Lampiran Hasil Uji
 *
 * @author Beti Tuntari <beti.tuntari@gmail.com>
 */
class LampiranHasilUjiController extends Controller
{
    /**
     * Display and edit attachment form
     *
     * @param int $idMcIpal
     * @param string $bulan
     * @return \Illuminate\Http\Response
     */
    public function edit($idMcIpal, $bulan)
    {
        // Check authorization
        if (!Gate::allows('pelaporan.view')) {
            abort(403);
        }

        // Get IPAL and pelaporan data
        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);
        $pelaporan = Pelaporan::findOrFail($ipal->idmcpelaporan);

        // Determine if upload is allowed in current period
        $blnAwal = (($pelaporan->idrefperiodepelaporan - 1) * 3) + 1;
        $blnAkhir = $blnAwal + 3;
        $editable = Pelaporan::checkEditable($ipal->idmcpelaporan, 'al') && Gate::allows('pelaporan.edit');

        if (($bulan >= $blnAwal && $bulan <= $blnAkhir) && $editable) {
            $enableUpload = 1;
        } else {
            $enableUpload = 0;
        }

        $data = [
            'idmcipal' => $idMcIpal,
            'tahun' => $pelaporan->tahun,
            'periode' => $pelaporan->periode,
            'nama_ipal' => $ipal->nama,
            'bulan' => $this->_mcMonth($bulan),
            'enableUpload' => $enableUpload
        ];

        return view('pelaporan.ipal.lampiran', $data);
    }

    /**
     * Upload files via dropzone
     *
     * @param Request $request
     * @param int $idMcIpal
     * @param string $bulan
     * @return void
     */
    public function uploadFile(Request $request, $idMcIpal, $bulan)
    {
        // Check authorization
        if (!Gate::allows('pelaporan.edit')) {
            abort(403);
        }

        // Get IPAL and pelaporan data
        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);
        $pelaporan = Pelaporan::findOrFail($ipal->idmcpelaporan);

        // Get upload directory
        $dirUpload = $this->_getDirectory($pelaporan->id, $idMcIpal, 'al', 'A6', $bulan);

        // Create directory if it doesn't exist
        if (!Storage::disk('public')->exists($dirUpload)) {
            Storage::disk('public')->makeDirectory($dirUpload, 0777, true);
        }

        // Handle file uploads
        if ($request->hasFile('file')) {
            $files = $request->file('file');

            foreach ($files as $file) {
                $name = $file->getClientOriginalName();
                $ext = $file->getClientOriginalExtension();
                $baseName = pathinfo($name, PATHINFO_FILENAME);
                $newName = $baseName . '_' . date('Ymd_His') . '.' . $ext;

                $filePath = $file->storeAs($dirUpload, $newName, 'public');
                $fullPath = storage_path('app/public/' . $filePath);

                // Set file permissions
                chmod($fullPath, 0777);

                // Save file data to database
                $data = [
                    'idmcipal' => $idMcIpal,
                    'tahun' => $pelaporan->tahun,
                    'idrefperusahaan' => $pelaporan->idrefperusahaan,
                    'bulan' => $bulan,
                    'dokumen' => $fullPath,
                    'tanggalunggah' => Carbon::now()->format('Y-m-d H:i:s')
                ];

                Ipal::saveLampiranHasilUji($data);
            }
        }
    }

    /**
     * List all uploaded files for dropzone
     *
     * @param Request $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function listFiles(Request $request)
    {
        // Check authorization
        if (!(Gate::allows('pelaporan.view') || Gate::allows('verifikasi.view'))) {
            abort(403);
        }

        // Get parameters from request
        $idMcIpal = $request->input('idmcipal');
        $bulan = $request->input('bulan');

        // Get IPAL and pelaporan data
        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);
        $pelaporan = Pelaporan::findOrFail($ipal->idmcpelaporan);

        $result = [];

        // Get all attachments
        $allLampiran = Ipal::getLampiranHasilUji([
            'b.idrefipal' => $ipal->idrefipal,
            'a.idrefperusahaan' => $pelaporan->idrefperusahaan,
            'a.bulan' => $bulan,
            'a.tahun' => $pelaporan->tahun
        ]);

        foreach ($allLampiran as $lampiran) {
            if (File::exists($lampiran->dokumen)) {
                $pathExplode = explode('/', $lampiran->dokumen);
                $obj = [
                    'name' => end($pathExplode),
                    'size' => File::size($lampiran->dokumen),
                    'path' => $lampiran->dokumen
                ];
                $result[] = $obj;
            }
        }

        return response()->json($result);
    }

    /**
     * Delete files from dropzone
     *
     * @param Request $request
     * @return void
     */
    public function deleteFile(Request $request)
    {
        // Check authorization
        if (!Gate::allows('pelaporan.edit')) {
            abort(403);
        }

        // Get parameters from request
        $idMcIpal = $request->input('idmcipal');
        $bulan = $request->input('bulan');
        $fileName = $request->input('fileName');

        // Get IPAL data
        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);

        // Get upload directory
        $dirUpload = storage_path('app/public/') . $this->_getDirectory($ipal->idmcpelaporan, $idMcIpal, 'al', 'A6', $bulan);

        // Delete file
        $fullPath = $dirUpload . basename($fileName);
        if (File::exists($fullPath)) {
            File::delete($fullPath);
        }

        // Delete from database
        $filter = [
            'idmcipal' => $idMcIpal,
            'bulan' => $bulan,
            'dokumen' => $dirUpload . basename($fileName)
        ];

        Ipal::deleteLampiranHasilUji($filter);
    }

    /**
     * Get directory for file storage
     *
     * @param int $idMcPelaporan
     * @param int $idMcIpal
     * @param string $kodeRefPelaporan
     * @param string $kodeKomponen
     * @param string $bulan
     * @return string
     */
    private function _getDirectory($idMcPelaporan, $idMcIpal, $kodeRefPelaporan, $kodeKomponen, $bulan)
    {
        $pelaporan = Pelaporan::findOrFail($idMcPelaporan);
        $perusahaan = Pelaporan::getPerusahaan($pelaporan->idrefperusahaan);
        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);

        $notAllowedChar = [' ', '.', '/', '-', ',', ':'];

        $noInduk = $perusahaan->nomorinduk;
        $noIpal = $ipal->nomor;
        $tahun = $pelaporan->tahun;
        $periode = strtolower(str_replace($notAllowedChar, '_', $pelaporan->periode));

        $dirUpload = 'data_perusahaan/' . $noInduk . '/lampiran' . '/' . $kodeRefPelaporan . '/' .
                    $kodeKomponen . '/' . $tahun . '_' . $periode . '/lampiran_hasiluji' . '/' .
                    $bulan . '/' . $noIpal . '/';

        return $dirUpload;
    }

    /**
     * Convert month number to name
     *
     * @param int $monthNum
     * @return string
     */
    private function _mcMonth($monthNum)
    {
        $months = [
            1 => 'January',
            2 => 'February',
            3 => 'March',
            4 => 'April',
            5 => 'May',
            6 => 'June',
            7 => 'July',
            8 => 'August',
            9 => 'September',
            10 => 'October',
            11 => 'November',
            12 => 'December'
        ];

        return $months[$monthNum] ?? '';
    }
}