<?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\Pelaporan\Lampiran;
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 Komponen di Persyaratan Teknis
 *
 * @author Beti Tuntari <beti.tuntari@gmail.com>
 */
class LampiranSyaratTeknisController extends Controller
{
    /**
     * Display and edit technical requirements attachment form
     *
     * @param int $idMcIpal
     * @param string $kodeKomponen
     * @return \Illuminate\Http\Response
     */
    public function edit($idMcIpal, $kodeKomponen)
    {
        // Check authorization
        if (!Gate::allows('pelaporan.view')) {
            abort(403);
        }

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

        $data = [
            'nama_ipal' => $ipal->nama,
            'idmcipal' => $idMcIpal,
            'editable' => Pelaporan::checkEditable($ipal->idmcpelaporan, 'al') && Gate::allows('pelaporan.edit'),
            'kode_komponen' => $kodeKomponen,
            'nama_komponen' => Lampiran::getKomponenByKode($kodeKomponen)->nama
        ];

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

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

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

        // Get upload directory
        $dirUpload = $this->_getDirectory($idMcIpal, $kodeKomponen);

        // 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
                if ($kodeKomponen != 'A5') {
                    $idRefKomponen = Lampiran::getKomponenByKode($kodeKomponen)->id;
                    $insert = [
                        'PelapranId' => $ipal->idmcpelaporan,
                        'IpalId' => $idMcIpal,
                        'KomponenId' => $idRefKomponen,
                        'Dokumen' => $fullPath,
                        'TanggalUnggah' => Carbon::now()->format('Y-m-d H:i:s')
                    ];

                    Lampiran::saveFile($insert);
                } else {
                    // For A5, update IPAL's lampiran field
                    if ($ipal->lampiran && File::exists($ipal->lampiran)) {
                        File::delete($ipal->lampiran);
                    }
                    Ipal::editMcIpal($idMcIpal, ['Lamapiran' => $fullPath]);
                }
            }
        }
    }

    /**
     * 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')) {
            abort(403);
        }

        // Get parameters from request
        $idMcIpal = $request->input('idmcipal');
        $kodeKomponen = $request->input('kode_komponen');
        $idRefKomponen = Lampiran::getKomponenByKode($kodeKomponen)->id;
        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);

        $result = [];

        // Get all attachments
        if ($kodeKomponen != 'A5') {
            $allLampiran = Lampiran::getLampiran([
                'idmcipal' => $idMcIpal,
                'idrefkomponen' => $idRefKomponen
            ]);

            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;
                }
            }
        } else {
            // For A5, get from IPAL's lampiran field
            $lampiran = $ipal->lampiran;
            if ($lampiran && File::exists($lampiran)) {
                $pathExplode = explode('/', $lampiran);
                $obj = [
                    'name' => end($pathExplode),
                    'size' => File::size($lampiran),
                    'path' => $lampiran
                ];
                $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
        $filePath = $request->input('filePath');
        $idMcIpal = $request->input('idmcipal');
        $kodeKomponen = $request->input('kode_komponen');

        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);
        $idRefKomponen = Lampiran::getKomponenByKode($kodeKomponen)->id;

        if ($kodeKomponen != 'A5') {
            // Delete file physically
            if (File::exists($filePath)) {
                File::delete($filePath);
            }

            // Delete from database
            $filter = [
                'idmcipal' => $idMcIpal,
                'idrefkomponen' => $idRefKomponen,
                'dokumen' => $filePath
            ];

            Lampiran::deleteFile($filter);
        } else {
            // For A5, clear IPAL's lampiran field
            if ($ipal->lampiran && File::exists($ipal->lampiran)) {
                File::delete($ipal->lampiran);
            }
            Ipal::editMcIpal($idMcIpal, ['lampiran' => '']);
        }

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

    /**
     * Check if attachments exist
     *
     * @param int $idMcIpal
     * @param string $kodeKomponen
     * @return \Illuminate\Http\JsonResponse
     */
    public function cekAdaLampiran($idMcIpal, $kodeKomponen)
    {
        // Check authorization
        if (!Gate::allows('pelaporan.view')) {
            abort(403);
        }

        $ipal = Ipal::getOneBy(['id' => $idMcIpal]);

        if ($kodeKomponen == 'all') {
            $filter = [
                'idmcpelaporan' => $ipal->idmcpelaporan,
                'idmcipal' => $idMcIpal
            ];

            $allLampiran = Lampiran::getLampiran($filter);
            $idA5 = Lampiran::getKomponenByKode('A5')->id;

            $lampiranExists = [];

            foreach ($allLampiran as $lampiran) {
                if ($lampiran->idrefkomponen != $idA5) {
                    if (File::exists($lampiran->dokumen)) {
                        if (!in_array($lampiran->idrefkomponen, $lampiranExists)) {
                            array_push($lampiranExists, $lampiran->idrefkomponen);
                        }
                    }
                }
            }

            if ($ipal->lampiran && File::exists($ipal->lampiran)) {
                array_push($lampiranExists, $idA5);
            }

            $response = $lampiranExists;
        } else {
            $idRefKomponen = Lampiran::getKomponenByKode($kodeKomponen)->id;

            $response = ['lampiran' => false, 'refkomponen' => $idRefKomponen];

            if ($kodeKomponen != 'A5') {
                $filter = [
                    'idmcpelaporan' => $ipal->idmcpelaporan,
                    'idmcipal' => $idMcIpal,
                    'idrefkomponen' => $idRefKomponen
                ];
                $allLampiran = Lampiran::getLampiran($filter);

                if ($allLampiran) {
                    foreach ($allLampiran as $lampiran) {
                        if (File::exists($lampiran->dokumen)) {
                            $response['lampiran'] = true;
                            break;
                        }
                    }
                }
            } else {
                if ($ipal->lampiran && File::exists($ipal->lampiran)) {
                    $response['lampiran'] = true;
                }
            }
        }

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

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

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

        $noInduk = $perusahaan->nomorinduk;
        $tahun = $pelaporan->tahun;
        $periode = strtolower(str_replace($notAllowedChar, '_', $pelaporan->periode));
        $kodeRefPelaporan = 'al';
        $ipalName = str_replace($notAllowedChar, '_', $ipal->nama);

        $dirUpload = 'data_perusahaan/' . $noInduk . '/lampiran' . '/' . $kodeRefPelaporan . '/' .
                    $tahun . '_' . $periode . '/' . $ipalName . '/' . $kodeKomponen . '/';

        return $dirUpload;
    }
}