<?php

/**
 * 文件功能：商店控制器
 * 提供商品列表查询、商品购买、改名卡使用 三个接口
 */

namespace App\Http\Controllers;

use App\Models\ShopItem;
use App\Services\ShopService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class ShopController extends Controller
{
    /**
     * 注入商店服务
     */
    public function __construct(
        private readonly ShopService $shopService,
    ) {}

    /**
     * 获取商店商品列表及当前用户状态
     *
     * 返回字段：items（商品列表）、user_jjb（当前金币）、
     *           active_week_effect（当前周卡）、has_rename_card（是否持有改名卡）
     */
    public function items(): JsonResponse
    {
        $user = Auth::user();
        $items = ShopItem::active()->map(fn ($item) => [
            'id' => $item->id,
            'name' => $item->name,
            'slug' => $item->slug,
            'description' => $item->description,
            'icon' => $item->icon,
            'price' => $item->price,
            'type' => $item->type,
            'duration_days' => $item->duration_days,
        ]);

        return response()->json([
            'items' => $items,
            'user_jjb' => $user->jjb ?? 0,
            'active_week_effect' => $this->shopService->getActiveWeekEffect($user),
            'has_rename_card' => $this->shopService->hasRenameCard($user),
        ]);
    }

    /**
     * 购买商品
     *
     * @param  Request  $request  含 item_id
     */
    public function buy(Request $request): JsonResponse
    {
        $request->validate(['item_id' => 'required|integer|exists:shop_items,id']);

        $item = ShopItem::find($request->item_id);
        if (! $item->is_active) {
            return response()->json(['status' => 'error', 'message' => '该商品已下架。'], 400);
        }

        $result = $this->shopService->buyItem(Auth::user(), $item);

        if (! $result['ok']) {
            return response()->json(['status' => 'error', 'message' => $result['message']], 400);
        }

        $response = ['status' => 'success', 'message' => $result['message']];

        // 单次特效卡：告诉前端立即播放哪个特效
        if (isset($result['play_effect'])) {
            $response['play_effect'] = $result['play_effect'];
        }

        // 返回最新金币余额
        $response['jjb'] = Auth::user()->fresh()->jjb;

        return response()->json($response);
    }

    /**
     * 使用改名卡修改昵称
     *
     * @param  Request  $request  含 new_name
     */
    public function rename(Request $request): JsonResponse
    {
        $request->validate([
            'new_name' => 'required|string|min:1|max:10',
        ]);

        $result = $this->shopService->useRenameCard(Auth::user(), $request->new_name);

        if (! $result['ok']) {
            return response()->json(['status' => 'error', 'message' => $result['message']], 400);
        }

        return response()->json(['status' => 'success', 'message' => $result['message']]);
    }
}