<?php

namespace App\Console\Commands;

use App\Models\BendingItem;
use App\Models\Commons\File;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Storage;

/**
 * 레거시 이미지 → R2 업로드 + bending_items 연결
 *
 * 실행: php artisan bending:import-images [--dry-run] [--tenant_id=287]
 */
class BendingImportImages extends Command
{
    protected $signature = 'bending:import-images
        {--tenant_id=287 : 테넌트 ID}
        {--dry-run : 미리보기}
        {--legacy-path=/home/kkk/sam/5130/bending/img : 레거시 이미지 경로}';

    protected $description = '레거시 절곡품 이미지 → R2 업로드 + bending_items 연결';

    public function handle(): int
    {
        $tenantId = (int) $this->option('tenant_id');
        $dryRun = $this->option('dry-run');
        $legacyPath = $this->option('legacy-path');

        $items = BendingItem::where('tenant_id', $tenantId)
            ->whereNotNull('legacy_bending_id')
            ->get();

        $chandjMap = DB::connection('chandj')->table('bending')
            ->whereNotNull('imgdata')
            ->where('imgdata', '!=', '')
            ->pluck('imgdata', 'num');

        $this->info("bending_items: {$items->count()}건 / chandj imgdata: {$chandjMap->count()}건");

        $uploaded = 0;
        $skipped = 0;
        $notFound = 0;
        $errors = 0;

        foreach ($items as $bi) {
            $imgFile = $chandjMap[$bi->legacy_bending_id] ?? null;
            if (! $imgFile) {
                $skipped++;
                continue;
            }

            $filePath = "{$legacyPath}/{$imgFile}";
            if (! file_exists($filePath)) {
                $this->warn("  ⚠️ 파일 없음: {$imgFile} (#{$bi->legacy_bending_id})");
                $notFound++;
                continue;
            }

            $existing = File::where('document_type', 'bending_item')
                ->where('document_id', $bi->id)
                ->where('field_key', 'bending_diagram')
                ->whereNull('deleted_at')
                ->first();

            if ($existing) {
                $skipped++;
                continue;
            }

            if ($dryRun) {
                $this->line("  [DRY] #{$bi->legacy_bending_id} → {$bi->id} ({$bi->item_name}) ← {$imgFile}");
                $uploaded++;
                continue;
            }

            try {
                $extension = pathinfo($imgFile, PATHINFO_EXTENSION);
                $storedName = bin2hex(random_bytes(8)) . '.' . $extension;
                $directory = sprintf('%d/bending/%s/%s', $tenantId, date('Y'), date('m'));
                $r2Path = $directory . '/' . $storedName;

                Storage::disk('r2')->put($r2Path, file_get_contents($filePath));

                File::create([
                    'tenant_id' => $tenantId,
                    'display_name' => $imgFile,
                    'stored_name' => $storedName,
                    'file_path' => $r2Path,
                    'file_size' => filesize($filePath),
                    'mime_type' => mime_content_type($filePath),
                    'file_type' => 'image',
                    'field_key' => 'bending_diagram',
                    'document_id' => $bi->id,
                    'document_type' => 'bending_item',
                    'is_temp' => false,
                    'uploaded_by' => 1,
                    'created_by' => 1,
                ]);

                $this->line("  ✅ #{$bi->legacy_bending_id} → {$bi->id} ({$bi->item_name}) ← {$imgFile}");
                $uploaded++;
            } catch (\Throwable $e) {
                $this->error("  ❌ #{$bi->legacy_bending_id}: {$e->getMessage()}");
                $errors++;
            }
        }

        $this->newLine();
        $this->info("완료: 업로드 {$uploaded}, 스킵 {$skipped}, 파일없음 {$notFound}, 오류 {$errors}");

        return 0;
    }
}