<?php

namespace App\Http\Controllers\Client;

use App\Exceptions\RepositoryException;
use App\Http\Requests\Client\SpecialBatchAddRequest;
use App\Http\Requests\Client\SpecialFormRequest;
use App\Models\HomeSpecialModel;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Modules\AnnoRoute\Attribute\DeleteRoute;
use Modules\AnnoRoute\Attribute\GetRoute;
use Modules\AnnoRoute\Attribute\PostRoute;
use Modules\AnnoRoute\Attribute\PutRoute;
use Modules\AnnoRoute\Attribute\RequestAttribute;
use Modules\Common\Http\Controllers\BaseController;

/**
 * 特价推荐商品配置（小程序首页）
 */
#[RequestAttribute('/client/special', 'client.special')]
class SpecialController extends BaseController
{
    protected array $searchField = [
        'status' => '=',
    ];

    /** 推荐列表（默认按排序升序；keyword 按商品名模糊搜索） */
    #[GetRoute(authorize: 'query')]
    public function query(Request $request): JsonResponse
    {
        $params = $request->all();
        $pageSize = $params['pageSize'] ?? 10;
        $query = $this->buildSearch($params, HomeSpecialModel::query()->with('product'));

        $keyword = trim((string) ($params['keyword'] ?? ''));
        if ($keyword !== '') {
            $query->whereHas('product', static function ($q) use ($keyword) {
                $q->where('name', 'like', '%' . $keyword . '%');
            });
        }

        $data = $query->orderBy('sort')
            ->orderBy('id')
            ->paginate($pageSize)
            ->toArray();
        return $this->success($data);
    }

    /** 批量添加推荐商品（已在推荐中的自动跳过） */
    #[PostRoute('/batch', 'create')]
    public function batchAdd(SpecialBatchAddRequest $request): JsonResponse
    {
        $productIds = $request->validated()['product_ids'];
        $exists = HomeSpecialModel::whereIn('product_id', $productIds)->pluck('product_id')->all();
        $newIds = array_values(array_diff($productIds, $exists));

        foreach ($newIds as $productId) {
            HomeSpecialModel::create([
                'product_id' => $productId,
                'sort' => 0,
                'status' => HomeSpecialModel::STATUS_NORMAL,
            ]);
        }

        return $this->success([
            'added' => count($newIds),
            'skipped' => count($productIds) - count($newIds),
        ]);
    }

    /** 编辑推荐（仅排序与状态） */
    #[PutRoute(route: '/{id}', authorize: 'update', where: ['id' => '[0-9]+'])]
    public function update(int $id, SpecialFormRequest $request): JsonResponse
    {
        $model = HomeSpecialModel::find($id);
        if (empty($model)) {
            throw new RepositoryException('推荐不存在');
        }
        $model->update($request->validated());
        return $this->success();
    }

    /** 删除推荐 */
    #[DeleteRoute(route: '/{id}', authorize: 'delete', where: ['id' => '[0-9]+'])]
    public function delete(int $id): JsonResponse
    {
        $model = HomeSpecialModel::find($id);
        if (empty($model)) {
            throw new RepositoryException('推荐不存在');
        }
        $model->delete();
        return $this->success();
    }

    /** 批量删除推荐 */
    #[DeleteRoute('/batch', 'delete')]
    public function batchDelete(Request $request): JsonResponse
    {
        $data = $request->validate([
            'ids' => 'required|array|min:1',
            'ids.*' => 'integer|distinct',
        ], [
            'ids.required' => '请选择要删除的推荐',
            'ids.min' => '请选择要删除的推荐',
            'ids.*.integer' => '推荐 ID 格式错误',
            'ids.*.distinct' => '存在重复的推荐',
        ]);
        HomeSpecialModel::whereIn('id', $data['ids'])->delete();
        return $this->success();
    }
}