<?php

namespace App\Console\Commands;

use Illuminate\Console\Attributes\AsCommand;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;

/**
 * chandj shutterbox(케이스) + bottombar(하단마감재) → SAM items 임포트
 */
#[AsCommand(name: 'bending-product:import-legacy', description: 'chandj 케이스/하단마감재 모델 → SAM items 임포트')]
class BendingProductImportLegacy extends Command
{
    protected $signature = 'bending-product:import-legacy
                            {--tenant_id=287 : Target tenant ID}
                            {--dry-run : 실제 저장 없이 미리보기}';

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

        $this->info('=== 케이스/하단마감재 모델 → SAM 임포트 ===');
        $this->info('Mode: '.($dryRun ? 'DRY-RUN' : 'LIVE'));
        $this->newLine();

        // 케이스 (shutterbox)
        $this->info('--- 케이스 (shutterbox) ---');
        $cases = DB::connection('chandj')->table('shutterbox')->whereNull('is_deleted')->get();
        $this->info("chandj shutterbox: {$cases->count()}건");
        $caseCreated = $this->importItems($cases, 'SHUTTERBOX_MODEL', $tenantId, $dryRun);

        $this->newLine();

        // 하단마감재 (bottombar)
        $this->info('--- 하단마감재 (bottombar) ---');
        $bars = DB::connection('chandj')->table('bottombar')->whereNull('is_deleted')->get();
        $this->info("chandj bottombar: {$bars->count()}건");
        $barCreated = $this->importItems($bars, 'BOTTOMBAR_MODEL', $tenantId, $dryRun);

        $this->newLine();
        $this->info("결과: 케이스 {$caseCreated}건 + 하단마감재 {$barCreated}건");
        if ($dryRun) {
            $this->info('🔍 DRY-RUN 완료.');
        }

        return self::SUCCESS;
    }

    private function importItems($rows, string $category, int $tenantId, bool $dryRun): int
    {
        $created = 0;
        $skipped = 0;

        foreach ($rows as $row) {
            $code = $this->buildCode($row, $category);
            $name = $this->buildName($row, $category);

            $existing = DB::table('items')
                ->where('tenant_id', $tenantId)
                ->where('code', $code)
                ->whereNull('deleted_at')
                ->first();

            if ($existing) {
                $skipped++;

                continue;
            }

            $components = $this->convertComponents(json_decode($row->bending_components ?? '[]', true) ?: []);
            $materialSummary = json_decode($row->material_summary ?? '{}', true) ?: [];

            $options = $this->buildOptions($row, $category, $components, $materialSummary);

            if (! $dryRun) {
                DB::table('items')->insert([
                    'tenant_id' => $tenantId,
                    'code' => $code,
                    'name' => $name,
                    'item_type' => 'FG',
                    'item_category' => $category,
                    'unit' => 'SET',
                    'options' => json_encode($options, JSON_UNESCAPED_UNICODE),
                    'is_active' => true,
                    'created_at' => now(),
                    'updated_at' => now(),
                ]);
            }

            $created++;
            $this->line("  ✅ {$code} ({$name}) — 부품 ".count($components).'개');
        }

        $this->info("  생성: {$created}건 | 스킵: {$skipped}건");

        return $created;
    }

    private function buildCode(object $row, string $category): string
    {
        if ($category === 'SHUTTERBOX_MODEL') {
            $size = ($row->box_width ?? '').
                '*'.($row->box_height ?? '');
            $exit = match ($row->exit_direction ?? '') {
                '양면 점검구' => '양면',
                '밑면 점검구' => '밑면',
                '후면 점검구' => '후면',
                default => $row->exit_direction ?? '',
            };

            return "SB-{$size}-{$exit}";
        }

        // BOTTOMBAR_MODEL
        $model = $row->model_name ?? 'UNKNOWN';
        $finish = str_contains($row->finishing_type ?? '', 'SUS') ? 'SUS' : 'EGI';

        return "BB-{$model}-{$finish}";
    }

    private function buildName(object $row, string $category): string
    {
        if ($category === 'SHUTTERBOX_MODEL') {
            return "케이스 {$row->box_width}*{$row->box_height} {$row->exit_direction}";
        }

        return "하단마감재 {$row->model_name} {$row->firstitem}";
    }

    private function buildOptions(object $row, string $category, array $components, array $materialSummary): array
    {
        $base = [
            'author' => $row->author ?? null,
            'registration_date' => $row->registration_date ?? null,
            'search_keyword' => $row->search_keyword ?? null,
            'memo' => $row->remark ?? null,
            'components' => $components,
            'material_summary' => $materialSummary,
            'source' => 'chandj_'.(strtolower($category)),
            'legacy_num' => $row->num,
        ];

        if ($category === 'SHUTTERBOX_MODEL') {
            return array_merge($base, [
                'box_width' => (int) ($row->box_width ?? 0),
                'box_height' => (int) ($row->box_height ?? 0),
                'exit_direction' => $row->exit_direction ?? null,
                'front_bottom_width' => $row->front_bottom_width ?? null,
                'rail_width' => $row->rail_width ?? null,
            ]);
        }

        // BOTTOMBAR_MODEL
        return array_merge($base, [
            'model_name' => $row->model_name ?? null,
            'item_sep' => $row->firstitem ?? null,
            'model_UA' => $row->model_UA ?? null,
            'finishing_type' => $row->finishing_type ?? null,
            'bar_width' => $row->bar_width ?? null,
            'bar_height' => $row->bar_height ?? null,
        ]);
    }

    private function convertComponents(array $legacyComps): array
    {
        return array_map(function ($c, $idx) {
            $inputs = $c['inputList'] ?? [];
            $rates = $c['bendingrateList'] ?? [];
            $sums = $c['sumList'] ?? [];
            $colors = $c['colorList'] ?? [];
            $angles = $c['AList'] ?? [];

            $bendingData = [];
            for ($i = 0; $i < count($inputs); $i++) {
                $bendingData[] = [
                    'no' => $i + 1,
                    'input' => (float) ($inputs[$i] ?? 0),
                    'rate' => (string) ($rates[$i] ?? ''),
                    'sum' => (float) ($sums[$i] ?? 0),
                    'color' => (bool) ($colors[$i] ?? false),
                    'aAngle' => (bool) ($angles[$i] ?? false),
                ];
            }

            $lastSum = ! empty($sums) ? (float) end($sums) : ($c['widthsum'] ?? 0);

            return [
                'orderNumber' => $idx + 1,
                'itemName' => $c['itemName'] ?? '',
                'material' => $c['material'] ?? '',
                'quantity' => (int) ($c['quantity'] ?? 1),
                'width_sum' => (float) $lastSum,
                'bendingData' => $bendingData,
                'legacy_bending_num' => $c['source_num'] ?? $c['num'] ?? null,
            ];
        }, $legacyComps, array_keys($legacyComps));
    }
}