<?php

namespace App\Services\Draw;

/**
 * 开奖号码行布局（与界面文档 4.6 奖项分区一致）。
 *
 * @return array<int, array{prize_type: string, prize_index: int}>
 */
final class DrawPrizeLayout
{
    public static function slots(): array
    {
        $slots = [];
        foreach (['first', 'second', 'third'] as $tier) {
            $slots[] = ['prize_type' => $tier, 'prize_index' => 0];
        }
        for ($i = 0; $i < 10; $i++) {
            $slots[] = ['prize_type' => 'starter', 'prize_index' => $i];
        }
        for ($i = 0; $i < 10; $i++) {
            $slots[] = ['prize_type' => 'consolation', 'prize_index' => $i];
        }

        return $slots;
    }
}