<?php

namespace App\Http\Controllers\Activity;

use App\Http\Controllers\Controller;
use App\Models\ActivityDataMitigation;
use App\Models\ActivityDataMitigationForm;
use App\Models\Kabupaten;
use App\Models\Kecamatan;
use App\Models\KegiatanMitigasi;
use App\Models\Kelurahan;
use App\Models\Mitigation;
use App\Models\MitigationRendahKarbonDaerah;
use App\Services\Activity\FormMitigasiService;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Auth;
use Barryvdh\DomPDF\Facade\Pdf;

class FormMitigasiController extends Controller
{
    protected $formMitigasiService;

    // Helper to sanitize integer input (empty string or not numeric to null)
    private function sanitizeInteger($value)
    {
        if ($value === null || $value === '' || !is_numeric($value)) return null;
        return (int)$value;
    }

    private function parseListData($raw)
    {
        if (!$raw) return [];

        // Hilangkan trailing koma sebelum ].
        $raw = preg_replace('/,(\s*\])/', '$1', $raw);

        $data = json_decode($raw, true);

        return is_array($data) ? $data : [];
    }

    public function __construct(FormMitigasiService $formMitigasiService)
    {
        $this->formMitigasiService = $formMitigasiService;   
    }

    public function thankYou(string $id)
    {
        $user = Auth::user();
        $km = KegiatanMitigasi::findOrFail($id);

        $data = [
            'oleh'      => $user ? $user->name : 'Guest',
            'waktu'     => $km->created_at->translatedFormat('l, d F Y, H:i'),
            'nama'      => $km->nama_kegiatan,
            'tahun'     => $km->tahun_kegiatan,
            'sektor'    => $km->sektor,
            'subsektor' => $km->sub_sektor,
            'target'    => $km->target,
            'satuan'    => $km->satuan,
            'penurunan' => $km->emission_factor,
        ];

        return view('form.index-mitigasi-thankyou', compact('data', 'km'));
    }

    public function downloadPDF(string $id)
    {
        $user = Auth::user();
        $km = KegiatanMitigasi::findOrFail($id);

        $data = [
            'oleh'      => $user ? $user->name : 'Guest',
            'waktu'     => $km->created_at->translatedFormat('l, d F Y, H:i'),
            'nama'      => $km->nama_kegiatan,
            'tahun'     => $km->tahun_kegiatan,
            'sektor'    => $km->sektor,
            'subsektor' => $km->sub_sektor,
            'target'    => $km->target,
            'satuan'    => $km->satuan,
            'penurunan' => $km->emission_factor,
        ];

        $pdf = PDF::loadView('form.index-mitigasi-pdf', compact('data'))
                    ->setPaper('a4', 'portrait');
        
        return $pdf->download('bukti-submission-'.$km->nama_kegiatan.'.pdf');
    }

    public function view(string $id)
    {
        $km = KegiatanMitigasi::with('sumberData')->findOrFail($id);
        $forms = ActivityDataMitigationForm::where('kegiatan_mitigasi_id', $id)->get();

        $sessionData = [
            'tipe_kegiatan'              => $km->tipe_kegiatan,
            'tahun_kegiatan'             => $km->tahun_kegiatan,
            'sektor'                     => $km->sektor,
            'sub_sektor'                 => $km->sub_sektor,
            'kategori_perhitungan'       => $km->kategori_perhitungan,
            'kategori_sub_aktivitas'     => $km->kategori_sub_aktivitas,
            'mitigation_id'              => $km->mitigation_id,
            'tipe_laporan'               => $km->tipe_laporan,
            'nama_kegiatan'              => $km->nama_kegiatan,
            'informasi_lokasi_kegiatan'  => $km->informasi_lokasi_kegiatan,
            'jenis_kegiatan'             => $km->jenis_kegiatan,
            'pelaksana_kegiatan'         => $km->pelaksana_kegiatan,
            'pelaksana_kegiatan_rad'     => $km->pelaksana_kegiatan_rad,
            'nomenklatur_kemendagri'     => $km->nomenklatur_kemendagri,
            'target'                     => $km->target,
            'satuan'                     => $km->satuan,
            'realisasi'                  => $km->realisasi,
            'sdg'                        => is_array($km->sdg) ? $km->sdg : (json_decode($km->sdg, true) ?? []),
            'catatan'                    => $km->catatan,
            'alokasi_apbn'               => $km->alokasi_apbn,
            'alokasi_apbd'               => $km->alokasi_apbd,
            'alokasi_swasta'             => $km->alokasi_swasta,
            'alokasi_sumber_dana_lain'   => $km->alokasi_sumber_dana_lain,
            'realisasi_apbn'             => $km->realisasi_apbn,
            'realisasi_apbd'             => $km->realisasi_apbd,
            'realisasi_swasta'           => $km->realisasi_swasta,
            'realisasi_sumber_dana_lain' => $km->realisasi_sumber_dana_lain,
            'kabupaten_kota_location'    => $km->kabupaten_kota_location,
            'kecamatan_location'         => $km->kecamatan_location,
            'kelurahan_location'         => $km->kelurahan_location,
            'lat_location'               => $km->lat_location,
            'long_location'              => $km->long_location,
            'sumber_data'                => $km->sumberData->map(fn($s) => [
                'title' => $s->judul_sumber_reference,
                'year'  => $s->tahun_sumber_reference,
                'link'  => $s->link_sumber_reference,
            ])->toArray(),
            'activity_forms' => $forms->mapWithKeys(function($f) {
                $raw = $f->values_array;
                if (is_string($raw)) {
                    $values = json_decode($raw, true) ?: [];
                } elseif (is_array($raw)) {
                    $values = $raw;
                } else {
                    $values = [$f->value];
                }
                $values = array_map('strval', $values);
                return [
                    "activity_data_{$f->sequence}" => $values,
                    "unit_{$f->sequence}"          => $f->unit,
                ];
            })->toArray(),
        ];

        return view('form.index-mitigasi-view', [
            'sessionData' => $sessionData,
            'id'          => $id,
        ]);
    }

    public function edit(string $id, Request $request)
    {
        $km = KegiatanMitigasi::with('sumberData')->findOrFail($id);
        $forms = ActivityDataMitigationForm::where('kegiatan_mitigasi_id', $id)->get();

        $sessionData = [
            'mitigation_id'              => $km->mitigation_id,
            'tipe_laporan'               => $km->tipe_laporan,
            'tipe_kegiatan'              => $km->tipe_kegiatan,
            'tahun_kegiatan'             => $km->tahun_kegiatan,
            'sektor'                     => $km->sektor,
            'sub_sektor'                 => $km->sub_sektor,
            'kategori_perhitungan'       => $km->kategori_perhitungan,
            'kategori_sub_aktivitas'     => $km->kategori_sub_aktivitas,
            'nama_kegiatan'              => $km->nama_kegiatan,
            'informasi_lokasi_kegiatan'  => $km->informasi_lokasi_kegiatan,
            'jenis_kegiatan'             => $km->jenis_kegiatan,
            'pelaksana_kegiatan'         => $km->pelaksana_kegiatan,
            'pelaksana_kegiatan_rad'     => $km->pelaksana_kegiatan_rad,
            'nomenklatur_kemendagri'     => $km->nomenklatur_kemendagri,
            'target'                     => $km->target,
            'satuan'                     => $km->satuan,
            'realisasi'                  => $km->realisasi,
            'sdg'                        => json_decode($km->sdg, true) ?? [],
            'catatan'                    => $km->catatan,
            'alokasi_apbn'               => $km->alokasi_apbn,
            'alokasi_apbd'               => $km->alokasi_apbd,
            'alokasi_swasta'             => $km->alokasi_swasta,
            'alokasi_sumber_dana_lain'   => $km->alokasi_sumber_dana_lain,
            'realisasi_apbn'             => $km->realisasi_apbn,
            'realisasi_apbd'             => $km->realisasi_apbd,
            'realisasi_swasta'           => $km->realisasi_swasta,
            'realisasi_sumber_dana_lain' => $km->realisasi_sumber_dana_lain,
            'kabupaten_kota_location'    => $km->kabupaten_kota_location,
            'kecamatan_location'         => $km->kecamatan_location,
            'kelurahan_location'         => $km->kelurahan_location,
            'lat_location'               => $km->lat_location,
            'long_location'              => $km->long_location,
            'sumber_data' => $km->sumberData->map(fn($s) => [
                'title' => $s->judul_sumber_reference,
                'year'  => $s->tahun_sumber_reference,
                'link'  => $s->link_sumber_reference,
            ])->toArray(),
            'activity_forms' => $forms->mapWithKeys(function($f) {
                $raw = $f->values_array;
                if (is_string($raw)) {
                    $values = json_decode($raw, true) ?: [];
                } elseif (is_array($raw)) {
                    $values = $raw;
                } else {
                    $values = [$f->value];
                }
                $values = array_map('strval', $values);
                return [
                    "activity_data_{$f->sequence}" => $values,
                    "unit_{$f->sequence}"          => $f->unit,
                ];
            })->toArray(),
        ];

        $request->session()->put('kegiatan_mitigasi', $sessionData);

        $startYear   = 2000;
        $currentYear = now()->year;
        $years       = range($startYear, $currentYear);
        rsort($years);

        $sectors     = KegiatanMitigasi::distinct()->pluck('sektor')->toArray();

        return view('form.index-mitigasi-edit', [
            'sessionData' => $sessionData,
            'years'       => $years,
            'currentYear' => $currentYear,
            'sectors'     => $sectors,
            'mitigation'  => $km,
            'readonly'    => false
        ]);
    }

    protected function persistActivityForms(array $inputs, string $mitigationId, string $kegiatanMitigasiId)
    {
        $isMultipleMap = ActivityDataMitigation::where('mitigation_id', $mitigationId)
            ->pluck('is_multiple', 'sequence')
            ->toArray();
        $typeMap = ActivityDataMitigation::where('mitigation_id', $mitigationId)
            ->pluck('type_emission_reduction', 'sequence')
            ->toArray();

        foreach ($isMultipleMap as $sequence => $isMultiple) {
            $unit      = $inputs['unit_' . $sequence] ?? null;
            $value     = $inputs['activity_data_' . $sequence] ?? null;
            $typeEmis  = $typeMap[$sequence] ?? null;

            if ($isMultiple) {
                $clean = is_array($value) ? array_filter($value, fn($v) => $v !== null && $v !== '') : [];
                if (!empty($clean)) {
                    ActivityDataMitigationForm::create([
                        'kegiatan_mitigasi_id'     => $kegiatanMitigasiId,
                        'sequence'                 => $sequence,
                        'value'                    => null,
                        'values_array'             => array_values($clean),
                        'unit'                     => $unit,
                        'mitigation_id'            => $mitigationId,
                        'type_emission_reduction'  => $typeEmis,
                    ]);
                }
            } else {
                $single = is_array($value) ? ($value[0] ?? null) : $value;
                if ($single !== null && $single !== '') {
                    ActivityDataMitigationForm::create([
                        'kegiatan_mitigasi_id'     => $kegiatanMitigasiId,
                        'sequence'                 => $sequence,
                        'value'                    => $single,
                        'values_array'             => null,
                        'unit'                     => $unit,
                        'mitigation_id'            => $mitigationId,
                        'type_emission_reduction'  => $typeEmis,
                    ]);
                }
            }
        }
    }

    public function create(Request $request)
    {   
        if ($request->has('reset')) {
            $request->session()->forget('kegiatan_mitigasi');
        }
        $sessionData = $request->session()->get('kegiatan_mitigasi', []);

        $startYear = 2000;
        $currentYear = date('Y');
        $years = range($startYear, $currentYear);
        rsort($years);

        return view('form.index-mitigasi',  compact('sessionData', 'years', 'currentYear'));
    }

    public function update(Request $request, $id)
    {
        $kegiatanMitigasi = KegiatanMitigasi::with('sumberData')->findOrFail($id);

        $sessionData = $request->session()->get('kegiatan_mitigasi');
        if (empty($sessionData)) {
            return response()->json([
                'success' => false,
                'message' => 'Data tidak lengkap, silakan lengkapi semua bagian.'
            ]);
        }

        try {
            DB::transaction(function() use ($sessionData, $request, $kegiatanMitigasi) {
                $kegiatanMitigasi->revisi = ($kegiatanMitigasi->revisi ?? 0) + 1;
                $kegiatanMitigasi->update([
                    'tipe_kegiatan'             => $sessionData['tipe_kegiatan'] ?? null,
                    'tahun_kegiatan'            => $this->sanitizeInteger($sessionData['tahun_kegiatan'] ?? null),
                    'sektor'                    => $sessionData['sektor'] ?? null,
                    'sub_sektor'                => $sessionData['sub_sektor'] ?? null,
                    'kategori_perhitungan'      => $sessionData['kategori_perhitungan'] ?? null,
                    'kategori_sub_aktivitas'    => $sessionData['kategori_sub_aktivitas'] ?? null,
                    'mitigation_id'             => $sessionData['mitigation_id'] ?? null,
                    'tipe_laporan'              => $sessionData['tipe_laporan'] ?? 'laporan',
                    'nama_kegiatan'             => $sessionData['nama_kegiatan'] ?? null,
                    'informasi_lokasi_kegiatan' => $sessionData['informasi_lokasi_kegiatan'] ?? null,
                    'jenis_kegiatan'            => $sessionData['jenis_kegiatan'] ?? null,
                    'pelaksana_kegiatan'        => $sessionData['pelaksana_kegiatan'] ?? null,
                    'pelaksana_kegiatan_rad'    => $sessionData['pelaksana_kegiatan_rad'] ?? null,
                    'nomenklatur_kemendagri'    => $sessionData['nomenklatur_kemendagri'] ?? null,
                    'target'                    => $sessionData['target'] ?? null,
                    'satuan'                    => $sessionData['satuan'] ?? null,
                    'realisasi'                 => $sessionData['realisasi'] ?? null,
                    'sdg'                       => json_encode($sessionData['sdg'] ?? []),
                    'catatan'                   => $sessionData['catatan'] ?? null,
                    'alokasi_apbn'              => $sessionData['alokasi_apbn'] ?? null,
                    'alokasi_apbd'              => $sessionData['alokasi_apbd'] ?? null,
                    'alokasi_swasta'            => $sessionData['alokasi_swasta'] ?? null,
                    'alokasi_sumber_dana_lain'  => $sessionData['alokasi_sumber_dana_lain'] ?? null,
                    'realisasi_apbn'            => $sessionData['realisasi_apbn'] ?? null,
                    'realisasi_apbd'            => $sessionData['realisasi_apbd'] ?? null,
                    'realisasi_swasta'          => $sessionData['realisasi_swasta'] ?? null,
                    'realisasi_sumber_dana_lain'=> $sessionData['realisasi_sumber_dana_lain'] ?? null,
                    'kabupaten_kota_location'   => $sessionData['kabupaten_kota_location'] ?? null,
                    'kecamatan_location'        => $sessionData['kecamatan_location'] ?? null,
                    'kelurahan_location'        => $sessionData['kelurahan_location'] ?? null,
                    'lat_location'              => $sessionData['lat_location'] ?? null,
                    'long_location'             => $sessionData['long_location'] ?? null,
                    'updated_by'                => auth()->check() ? auth()->user()->name : null,
                ]);

                // Update sumber data (delete all, re-insert sanitized)
                $kegiatanMitigasi->sumberData()->delete();
                foreach($sessionData['sumber_data'] ?? [] as $s) {
                    $kegiatanMitigasi->sumberData()->create([
                        'id'                     => Str::uuid(),
                        'judul_sumber_reference' => trim($s['title'] ?? '') ?: null,
                        'tahun_sumber_reference' => $this->sanitizeInteger($s['year'] ?? null),
                        'link_sumber_reference'  => trim($s['link'] ?? '') ?: null,
                    ]);
                }

                ActivityDataMitigationForm::where('kegiatan_mitigasi_id', $kegiatanMitigasi->id)->delete();
                $this->persistActivityForms($request->all(), $sessionData['mitigation_id'], $kegiatanMitigasi->id);

                $this->formMitigasiService->calculateAndPersist($sessionData['mitigation_id'], $kegiatanMitigasi);

                $request->session()->forget('kegiatan_mitigasi');
            });

            return response()->json([
                'success'  => true,
                'redirect' => route('formMitigasi.thankYou', $id),
            ]);
        } catch (\Exception $e) {
            Log::error('Error updating data: ' . $e->getMessage());
            return back()->with('error', 'Gagal mengupdate data. Silakan coba lagi.');
        }
    }

    public function loadQuestion(Request $request)
    {
        $mitigation_id = $request->input('mitigation_id');

        if (!Str::isUuid($mitigation_id)) {
            return response()->json(['message' => 'Invalid mitigation ID'], 400);
        }

        $questions = ActivityDataMitigation::select(
                'activity_data_mitigation.id',
                'activity_data_mitigation.activity_data',
                'activity_data_mitigation.unit',
                'activity_data_mitigation.sequence',
                'activity_data_mitigation.type',
                'activity_data_mitigation.list_data',
                'activity_data_mitigation.is_multiple',
                'activity_data_mitigation.question_plus',
                'activity_data_mitigation.ad_sequence',
                'activity_data_mitigation.type_emission_reduction',
                'activity_data_mitigation.is_required',
                'activity_data_mitigation.title_group',
                'activity_data_mitigation.keterangan',
                'am.activity_desc as activity_desc',
                'am.activity_type as title'
            )
            ->join('activity.mitigation as am', 'activity_data_mitigation.mitigation_id', '=', 'am.id')
            ->where('activity_data_mitigation.mitigation_id', $mitigation_id)
            ->orderBy('activity_data_mitigation.sequence')
            ->get()
            ->map(function ($item) {
                $dataMitigation = ActivityDataMitigation::with('units')
                    ->find($item->id);

                $units = $dataMitigation && $dataMitigation->units->isNotEmpty()
                    ? $dataMitigation->units->pluck('unit')
                    : collect([$item->unit])->filter();

                $category = $dataMitigation && $dataMitigation->units->isNotEmpty()
                    ? $dataMitigation->units->pluck('category')
                    : collect([$item->unit])->filter();

                return [
                    'id' => $item->id,
                    'sequence' => $item->sequence,
                    'activity_data' => $item->activity_data,
                    'units' => $units->values(),
                    'category' => $category->values(),
                    'type' => $item->type,
                    'choices' => $this->parseListData($item->list_data),
                    'is_multiple' => (bool)$item->is_multiple,
                    'is_required' => (bool)$item->is_required,
                    'question_plus' => $item->question_plus,
                    'ad_sequence' => $item->ad_sequence,
                    'type_emission_reduction' => $item->type_emission_reduction,
                    'activity_desc' => $item->activity_desc,
                    'title' => $item->title,
                    'title_group' => $item->title_group,
                    'keterangan' => $item->keterangan,
                ];
            });

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

    public function storePart1(Request $request) 
    {
        $validated = $request->validate([
            'tipe_kegiatan' => 'required|in:inti,pendukung,prasyarat',
            'tahun_kegiatan' => 'required|integer|min:2000|max:' . date('Y'),
            'sektor' => 'required|string',
            'sub_sektor' => 'required|string',
            'kategori_perhitungan' => 'required|string',
            'kategori_sub_aktivitas' => 'sometimes|nullable|string',
            'mitigation_id' => 'required|string'
        ]);

        $sessionData = $request->session()->get('kegiatan_mitigasi');
        $sessionArray = is_object($sessionData) ? $sessionData->toArray() : (array) $sessionData;
        $mergedData = array_merge($sessionArray, $validated);

        if ($request->filled('laporan')) {
            $mergedData['tipe_laporan'] = $request->laporan;
        } else {
            $mergedData['tipe_laporan'] = $sessionArray['tipe_laporan'] ?? 'laporan';
        }

        $request->session()->put('kegiatan_mitigasi', $mergedData);

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

    public function storePart2(Request $request)
    {
        $validated = $request->validate([
            'nama_kegiatan' => 'required|string',
            'informasi_lokasi_kegiatan' => 'required|string',
            'jenis_kegiatan' => 'required|string|in:lokal,berkelanjutan',
            'pelaksana_kegiatan' => 'nullable|string',
            'pelaksana_kegiatan_rad' => 'nullable|string',
            'nomenklatur_kemendagri' => 'nullable|string',
            'target' => 'required|string',
            'satuan' => 'required|string',
            'realisasi' => 'nullable|string',
            'sdg' => 'nullable|array',
            'catatan' => 'nullable|string',
        ]);

        $sessionData = $request->session()->get('kegiatan_mitigasi');

        if (!$sessionData) {
            return response()->json(['success' => false, 'message' => 'Silakan lengkapi bagian Informasi Umum terlebih dahulu']);
        }

        $updatedData = array_merge($sessionData, $validated);

        $request->session()->put('kegiatan_mitigasi', $updatedData);
        return response()->json(['success' => true]);
    }

    public function storePart3(Request $request)
    {
        $validated = $request->validate([
            'alokasi_apbn' => 'nullable|string',
            'alokasi_apbd' => 'nullable|string',
            'alokasi_swasta' => 'nullable|string',
            'alokasi_sumber_dana_lain' => 'nullable|string',
            'realisasi_apbn' => 'nullable|string',
            'realisasi_apbd' => 'nullable|string',
            'realisasi_swasta' => 'nullable|string',
            'realisasi_sumber_dana_lain' => 'nullable|string'
        ]);

        $sessionData = $request->session()->get('kegiatan_mitigasi');

        if (!$sessionData) {
            return response()->json(['success' => false, 'message' => 'Silakan lengkapi bagian Informasi Umum terlebih dahulu']);
        }

        $updatedData = array_merge($sessionData, $validated);

        $request->session()->put('kegiatan_mitigasi', $updatedData);
        return response()->json(['success' => true]);
    }

    public function storePart4(Request $request)
    {
        try {
            $validated = $request->validate([
                'titleSourceReference' => 'nullable|array',
                'titleSourceReference.*' => 'nullable|string|max:255',
                'yearSourceReference' => 'nullable|array',
                'yearSourceReference.*' => 'nullable|string|max:4',
                'linkSourceReference' => 'nullable|array',
                'linkSourceReference.*' => 'nullable|string|max:500',
            ]);

            $sessionData = $request->session()->get('kegiatan_mitigasi', []);

            if (empty($sessionData)) {
                return response()->json([
                    'success' => false,
                    'message' => 'Silakan lengkapi bagian Informasi Umum terlebih dahulu.'
                ]);
            }

            $titles = $validated['titleSourceReference'] ?? [];
            $years = $validated['yearSourceReference'] ?? [];
            $links = $validated['linkSourceReference'] ?? [];

            $max = max(count($titles), count($years), count($links));

            $sumberDataList = [];
            for ($i = 0; $i < $max; $i++) {
                $sumberDataList[] = [
                    'title' => trim($titles[$i] ?? ''),
                    'year'  => trim($years[$i] ?? ''),
                    'link'  => trim($links[$i] ?? ''),
                ];
            }

            $updatedData = array_merge($sessionData, ['sumber_data' => $sumberDataList]);
            $request->session()->put('kegiatan_mitigasi', $updatedData);

            return response()->json(['success' => true]);
        } catch (\Exception $e) {
            Log::error('Error storePart4: '.$e->getMessage());
            return response()->json([
                'success' => false,
                'message' => 'Terjadi error server: '.$e->getMessage()
            ]);
        }
    }

    public function storePart5(Request $request)
    {
        $validated = $request->validate([
            'kabupaten_kota_location' => 'nullable|string',
            'kecamatan_location' => 'nullable|string',
            'kelurahan_location' => 'nullable|string',
            'lat_location' => 'nullable|string',
            'long_location' => 'nullable|string'
        ]);

        $sessionData = $request->session()->get('kegiatan_mitigasi');

        if (!$sessionData) {
            return response()->json(['success' => false, 'message' => 'Silakan lengkapi bagian Informasi Umum terlebih dahulu']);
        }

        $updatedData = array_merge($sessionData, $validated);

        $request->session()->put('kegiatan_mitigasi', $updatedData);
        return response()->json(['success' => true]);
    }

    public function storeFinal(Request $request)
    {
        $sessionData = $request->session()->get('kegiatan_mitigasi');
        if (empty($sessionData)) {
            return response()->json([
                'success' => false,
                'message' => 'Silakan lengkapi semua bagian terlebih dahulu'
            ]);
        }

        try {
            $mitigasiId = Str::uuid()->toString();

            DB::transaction(function() use ($sessionData, $request, $mitigasiId) {
                $kegiatanMitigasi = KegiatanMitigasi::create([
                    'id'                     => $mitigasiId,
                    'tipe_kegiatan'          => $sessionData['tipe_kegiatan'] ?? null,
                    'tahun_kegiatan'         => $this->sanitizeInteger($sessionData['tahun_kegiatan'] ?? null),
                    'sektor'                 => $sessionData['sektor'] ?? null,
                    'sub_sektor'             => $sessionData['sub_sektor'] ?? null,
                    'kategori_perhitungan'   => $sessionData['kategori_perhitungan'] ?? null,
                    'kategori_sub_aktivitas' => $sessionData['kategori_sub_aktivitas'] ?? null,
                    'mitigation_id'          => $sessionData['mitigation_id'] ?? null,
                    'tipe_laporan'           => $sessionData['tipe_laporan'] ?? 'laporan',
                    'nama_kegiatan'          => $sessionData['nama_kegiatan'] ?? null,
                    'informasi_lokasi_kegiatan' => $sessionData['informasi_lokasi_kegiatan'] ?? null,
                    'jenis_kegiatan'         => $sessionData['jenis_kegiatan'] ?? null,
                    'pelaksana_kegiatan'     => $sessionData['pelaksana_kegiatan'] ?? null,
                    'pelaksana_kegiatan_rad' => $sessionData['pelaksana_kegiatan_rad'] ?? null,
                    'nomenklatur_kemendagri' => $sessionData['nomenklatur_kemendagri'] ?? null,
                    'target'                 => $sessionData['target'] ?? null,
                    'satuan'                 => $sessionData['satuan'] ?? null,
                    'realisasi'              => $sessionData['realisasi'] ?? null,
                    'sdg'                    => json_encode($sessionData['sdg'] ?? []),
                    'catatan'                => $sessionData['catatan'] ?? null,
                    'alokasi_apbn'           => $sessionData['alokasi_apbn'] ?? null,
                    'alokasi_apbd'           => $sessionData['alokasi_apbd'] ?? null,
                    'alokasi_swasta'         => $sessionData['alokasi_swasta'] ?? null,
                    'alokasi_sumber_dana_lain' => $sessionData['alokasi_sumber_dana_lain'] ?? null,
                    'realisasi_apbn'         => $sessionData['realisasi_apbn'] ?? null,
                    'realisasi_apbd'         => $sessionData['realisasi_apbd'] ?? null,
                    'realisasi_swasta'       => $sessionData['realisasi_swasta'] ?? null,
                    'realisasi_sumber_dana_lain' => $sessionData['realisasi_sumber_dana_lain'] ?? null,
                    'kabupaten_kota_location'=> $sessionData['kabupaten_kota_location'] ?? null,
                    'kecamatan_location'     => $sessionData['kecamatan_location'] ?? null,
                    'kelurahan_location'     => $sessionData['kelurahan_location'] ?? null,
                    'lat_location'           => $sessionData['lat_location'] ?? null,
                    'long_location'          => $sessionData['long_location'] ?? null,
                    'created_by'             => auth()->check() ? auth()->user()->name : null,
                ]);

                collect($sessionData['sumber_data'] ?? [])
                    ->filter(function($s) {
                        return 
                            trim($s['title'] ?? '') !== '' ||
                            trim($s['year']  ?? '') !== '' ||
                            trim($s['link']  ?? '') !== '';
                    })
                    ->each(function($s) use ($kegiatanMitigasi) {
                        $kegiatanMitigasi->sumberData()->create([
                            'id'                     => Str::uuid()->toString(),
                            'judul_sumber_reference' => trim($s['title'] ?? '') ?: null,
                            'tahun_sumber_reference' => $this->sanitizeInteger($s['year'] ?? null),
                            'link_sumber_reference'  => trim($s['link'] ?? '') ?: null,
                        ]);
                    });

                $this->persistActivityForms($request->all(), $sessionData['mitigation_id'], $mitigasiId);

                $this->formMitigasiService->calculateAndPersist($sessionData['mitigation_id'], $kegiatanMitigasi, $mitigasiId);

                $request->session()->forget('kegiatan_mitigasi');
            });

            return response()->json([
                'success'  => true,
                'redirect' => route('formMitigasi.thankYou', $mitigasiId),
            ]);
        } catch (\Exception $e) {
            Log::error('Error storing final data: ' . $e->getMessage());
            return back()->with('error', 'Gagal menyimpan data. Silakan coba lagi.');
        }
    }


    // ... fungsi getSectors, getSubSectors, getKategoriPerhitungan, getSubActivity, getAksiRAD, getKabkot, getKecamatan, getKelurahan tidak perlu diubah ...
    public function getSectors()
    {
        $query = Mitigation::select('sector')
            ->where('is_active', true)
            ->distinct();
        $result = $query->pluck('sector');

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

    public function getSubSectors(Request $request)
    {
        $param = $request->input('sector');

        $query = Mitigation::select('sub_sector')
            ->where('sector', $param)
            ->where('is_active', true)
            ->distinct();
        $result = $query->pluck('sub_sector');

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

    public function getKategoriPerhitungan(Request $request)
    {
        $param = $request->input('sub_sector');
        $param2 = $request->input('sector');

        $query = Mitigation::select('id', 'activity_type')
            ->where('sub_sector', $param)
            ->where('sector', $param2)
            ->where('is_active', true)
            ->distinct('activity_type')->get();

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

    public function getSubActivity(Request $request)
    {
        $param = $request->input('sub_sector');
        $param2 = $request->input('sector');
        $param3 = $request->input('activity');

        $query = Mitigation::select('id', 'sub_activity', 'sub_activity_desc')
            ->where('sub_sector', $param)
            ->where('sector', $param2)
            ->where('activity_type', $param3)
            ->where('is_active', true)
            ->distinct('sub_activity')->get();

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

    public function getAksiRAD(Request $request)
    {
        $param = $request->input('sub_sector');

        $data = MitigationRendahKarbonDaerah::select('sector', 'sub_sector', 'name')
            ->where('sub_sector', $param)
            ->distinct('name')->get();

        $result = $data->map(function ($item) {
            return "[" . $item->sector . " - " . $item->sub_sector . "] " . $item->name;
        });

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

    public function getKabkot()
    {
        $query = Kabupaten::select('kabkot_id', 'kabkot_name')
        ->get();

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

    public function getKecamatan(Request $request)
    {
        $param = $request->input('kabkot_id');

        $query = Kecamatan::select('kec_id', 'kec_name')
            ->where('kabkot_id', $param)
            ->get();

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

    public function getKelurahan(Request $request)
    {
        $kabkot_id = $request->input('kabkot_id');
        $kec_id = $request->input('kec_id');

        $query = Kelurahan::select('kel_id', 'kel_name')
            ->where('kabkot_id', $kabkot_id)
            ->where('kec_id', $kec_id)
            ->get();

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