<?php

namespace App\Http\Controllers\Api\V1\Admin\Draw;

use App\Models\Draw;
use App\Support\ApiResponse;
use App\Models\DrawResultItem;
use App\Models\DrawResultBatch;
use Illuminate\Http\JsonResponse;
use App\Http\Controllers\Controller;

/**
 * GET /api/v1/admin/draws/{draw}/result-batches — 开奖批次与号码（审核/结果核对）。
 */
final class AdminDrawResultBatchesIndexController extends Controller
{
    public function __invoke(Draw $draw): JsonResponse
    {
        $batches = $draw->resultBatches()
            ->with(['items' => function ($q): void {
                $q->orderBy('prize_type')->orderBy('prize_index');
            }])
            ->orderByDesc('result_version')
            ->get();

        return ApiResponse::success([
            'draw_id' => (int) $draw->id,
            'draw_no' => $draw->draw_no,
            'draw_status' => $draw->status,
            'batches' => $batches->map(fn (DrawResultBatch $b) => $this->serializeBatch($b))->all(),
        ]);
    }

    /** @return array<string, mixed> */
    private function serializeBatch(DrawResultBatch $batch): array
    {
        return [
            'id' => (int) $batch->id,
            'result_version' => (int) $batch->result_version,
            'source_type' => $batch->source_type,
            'rng_seed_hash' => $batch->rng_seed_hash,
            'status' => $batch->status,
            'created_by' => $batch->created_by,
            'confirmed_by' => $batch->confirmed_by,
            'confirmed_at' => $batch->confirmed_at?->toIso8601String(),
            'created_at' => $batch->created_at?->toIso8601String(),
            'updated_at' => $batch->updated_at?->toIso8601String(),
            'items' => $batch->items->map(fn (DrawResultItem $item) => [
                'prize_type' => $item->prize_type,
                'prize_index' => (int) $item->prize_index,
                'number_4d' => $item->number_4d,
                'suffix_3d' => $item->suffix_3d,
                'suffix_2d' => $item->suffix_2d,
                'head_digit' => $item->head_digit,
                'tail_digit' => $item->tail_digit,
            ])->values()->all(),
        ];
    }
}