<?php

namespace App\Services;

use App\Helpers\AiTokenHelper;
use App\Models\Juil\ConstructionSitePhoto;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Log;

class ConstructionSitePhotoService
{
    public function __construct(
        private readonly GoogleCloudService $googleCloudService
    ) {}

    public function getList(array $params): LengthAwarePaginator
    {
        $query = ConstructionSitePhoto::with('user')
            ->orderBy('work_date', 'desc')
            ->orderBy('id', 'desc');

        if (!empty($params['search'])) {
            $search = $params['search'];
            $query->where(function ($q) use ($search) {
                $q->where('site_name', 'like', "%{$search}%")
                    ->orWhere('description', 'like', "%{$search}%");
            });
        }

        if (!empty($params['date_from'])) {
            $query->where('work_date', '>=', $params['date_from']);
        }

        if (!empty($params['date_to'])) {
            $query->where('work_date', '<=', $params['date_to']);
        }

        $perPage = (int) ($params['per_page'] ?? 12);

        return $query->paginate($perPage);
    }

    public function create(array $data): ConstructionSitePhoto
    {
        return ConstructionSitePhoto::create([
            'tenant_id' => session('selected_tenant_id'),
            'user_id' => Auth::id(),
            'site_name' => $data['site_name'],
            'work_date' => $data['work_date'],
            'description' => $data['description'] ?? null,
        ]);
    }

    public function uploadPhoto(ConstructionSitePhoto $photo, $file, string $type): bool
    {
        if (!in_array($type, ['before', 'during', 'after'])) {
            return false;
        }

        $extension = $file->getClientOriginalExtension();
        $timestamp = now()->format('Ymd_His');
        $objectName = "construction-site-photos/{$photo->tenant_id}/{$photo->id}/{$timestamp}_{$type}.{$extension}";

        // 기존 사진이 있으면 GCS에서 삭제
        $oldPath = $photo->{$type . '_photo_path'};
        if ($oldPath) {
            $this->googleCloudService->deleteFromStorage($oldPath);
        }

        // 임시 파일로 저장 후 GCS 업로드
        $tempPath = $file->getRealPath();
        $result = $this->googleCloudService->uploadToStorage($tempPath, $objectName);

        if (!$result) {
            Log::error('ConstructionSitePhoto: GCS 업로드 실패', [
                'photo_id' => $photo->id,
                'type' => $type,
            ]);

            return false;
        }

        $photo->update([
            $type . '_photo_path' => $objectName,
            $type . '_photo_gcs_uri' => $result['uri'],
            $type . '_photo_size' => $result['size'],
        ]);

        AiTokenHelper::saveGcsStorageUsage('공사현장사진대지-GCS저장', $result['size']);

        return true;
    }

    public function update(ConstructionSitePhoto $photo, array $data): ConstructionSitePhoto
    {
        $photo->update([
            'site_name' => $data['site_name'],
            'work_date' => $data['work_date'],
            'description' => $data['description'] ?? null,
        ]);

        return $photo->fresh();
    }

    public function delete(ConstructionSitePhoto $photo): bool
    {
        // GCS에서 모든 사진 삭제
        foreach (['before', 'during', 'after'] as $type) {
            $path = $photo->{$type . '_photo_path'};
            if ($path) {
                $this->googleCloudService->deleteFromStorage($path);
            }
        }

        return $photo->delete();
    }

    public function deletePhotoByType(ConstructionSitePhoto $photo, string $type): bool
    {
        if (!in_array($type, ['before', 'during', 'after'])) {
            return false;
        }

        $path = $photo->{$type . '_photo_path'};
        if ($path) {
            $this->googleCloudService->deleteFromStorage($path);
        }

        $photo->update([
            $type . '_photo_path' => null,
            $type . '_photo_gcs_uri' => null,
            $type . '_photo_size' => null,
        ]);

        return true;
    }
}