<?php

namespace App\Module\Shop\AdminControllers;

use App\Module\Shop\Models\ShopPurchaseLimit;
use App\Module\Shop\Models\ShopItem;
use App\Module\Shop\Enums\PURCHASE_LIMIT_TYPE;
use App\Module\Shop\Enums\PURCHASE_LIMIT_PERIOD;
use App\Module\Shop\Repositorys\ShopPurchaseLimitRepository;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Show;
use Dcat\Admin\Http\Controllers\AdminController;
use Spatie\RouteAttributes\Attributes\Resource;

/**
 * 商店限购配置控制器
 *
 * 路由前缀: /admin/shop/purchase-limits
 * 路由名称: admin.shop.purchase-limits
 *
 * 提供商店限购配置的管理功能，包括：
 * - 限购规则的增删改查
 * - 限购类型和周期的配置
 * - 限购状态的管理
 */
#[Resource('shop-purchase-limits', names: 'dcat.admin.shop.purchase-limits')]
class ShopPurchaseLimitController extends AdminController
{
    /**
     * 页面标题
     *
     * @var string
     */
    protected $title = '商店限购配置';

    /**
     * 创建表格
     *
     * @return Grid
     */
    protected function grid()
    {
        return Grid::make(new ShopPurchaseLimitRepository(), function (Grid $grid) {
            // 预加载关联数据
            $grid->model()->with(['shopItem']);

            $grid->column('id', 'ID')->sortable();
            $grid->column('shopItem.name', '商品名称')->limit(30);
            $grid->column('name', '限购规则名称')->limit(30);
            $grid->column('limit_type', '限购类型')->using(PURCHASE_LIMIT_TYPE::getAll());
            $grid->column('limit_period', '限购周期')->using(PURCHASE_LIMIT_PERIOD::getAll());
            $grid->column('max_quantity', '最大数量')->sortable();
            $grid->column('is_active', '状态')->switch();
            $grid->column('sort_order', '排序')->sortable()->editable();
            $grid->column('created_at', '创建时间')->sortable();

            // 过滤器
            $grid->filter(function (Grid\Filter $filter) {
                $filter->equal('shop_item_id', '商品')->select(
                    ShopItem::where('is_active', true)->pluck('name', 'id')
                );
                $filter->equal('limit_type', '限购类型')->select(PURCHASE_LIMIT_TYPE::getAll());
                $filter->equal('limit_period', '限购周期')->select(PURCHASE_LIMIT_PERIOD::getAll());
                $filter->equal('is_active', '状态')->select([1 => '激活', 0 => '禁用']);
            });

            // 工具栏
            $grid->toolsWithOutline(false);
            $grid->enableDialogCreate();
            $grid->enableDialogEdit();
            $grid->setDialogFormDimensions('800px', '600px');
        });
    }

    /**
     * 创建详情页
     *
     * @param mixed $id
     * @return Show
     */
    protected function detail($id)
    {
        return Show::make($id, new ShopPurchaseLimitRepository(), function (Show $show) {
            $show->field('id', 'ID');
            $show->field('shopItem.name', '商品名称');
            $show->field('name', '限购规则名称');
            $show->field('description', '限购规则描述');
            $show->field('limit_type', '限购类型')->using(PURCHASE_LIMIT_TYPE::getAll());
            $show->field('limit_period', '限购周期')->using(PURCHASE_LIMIT_PERIOD::getAll());
            $show->field('max_quantity', '最大数量');
            $show->field('is_active', '状态')->using([1 => '激活', 0 => '禁用']);
            $show->field('sort_order', '排序权重');
            $show->field('created_at', '创建时间');
            $show->field('updated_at', '更新时间');
        });
    }

    /**
     * 创建表单
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new ShopPurchaseLimitRepository(), function (Form $form) {
            $form->display('id', 'ID');

            $form->select('shop_item_id', '商品')
                ->options(ShopItem::where('is_active', true)->pluck('name', 'id'))
                ->required()
                ->help('选择要设置限购的商品');

            $form->text('name', '限购规则名称')
                ->required()
                ->help('为此限购规则起一个便于识别的名称');

            $form->textarea('description', '限购规则描述')
                ->rows(3)
                ->help('详细描述此限购规则的用途和限制条件');

            $form->select('limit_type', '限购类型')
                ->options(PURCHASE_LIMIT_TYPE::getAll())
                ->required()
                ->help('选择限购类型：单次购买限制或周期性购买限制');

            $form->select('limit_period', '限购周期')
                ->options(PURCHASE_LIMIT_PERIOD::getAll())
                ->default(PURCHASE_LIMIT_PERIOD::PERMANENT->value)
                ->help('选择限购周期，仅在周期性购买限制时有效');

            $form->number('max_quantity', '最大购买数量')
                ->min(1)
                ->required()
                ->help('设置在限购周期内允许购买的最大数量');

            $form->switch('is_active', '是否激活')
                ->default(true)
                ->help('是否启用此限购规则');

            $form->number('sort_order', '排序权重')
                ->default(0)
                ->help('数值越小排序越靠前，用于控制多个限购规则的检查顺序');

            $form->display('created_at', '创建时间');
            $form->display('updated_at', '更新时间');

            // 表单验证
            $form->saving(function (Form $form) {
                // 验证限购类型和周期的组合
                if ($form->limit_type == PURCHASE_LIMIT_TYPE::SINGLE_PURCHASE->value
                    && $form->limit_period != PURCHASE_LIMIT_PERIOD::PERMANENT->value) {
                    return $form->response()->error('单次购买限制只能使用永久周期');
                }
            });
        });
    }


    /**
     * 批量切换状态
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function toggleStatus()
    {
        $ids = request('ids', []);

        if (empty($ids)) {
            return response()->json([
                'status' => false,
                'message' => '请选择要操作的记录'
            ]);
        }

        $successCount = 0;
        foreach ($ids as $id) {
            if ($this->repository()->toggleStatus($id)) {
                $successCount++;
            }
        }

        return response()->json([
            'status' => true,
            'message' => "成功切换 {$successCount} 条记录的状态"
        ]);
    }

    /**
     * 获取商品的限购配置
     *
     * @param int $shopItemId
     * @return \Illuminate\Http\JsonResponse
     */
    public function getByShopItem($shopItemId)
    {
        $limits = $this->repository()->getByShopItem($shopItemId);

        return response()->json([
            'status' => true,
            'data' => $limits->map(function ($limit) {
                return [
                    'id' => $limit->id,
                    'name' => $limit->name,
                    'limit_type_text' => $limit->limit_type_text,
                    'limit_period_text' => $limit->limit_period_text,
                    'max_quantity' => $limit->max_quantity,
                    'is_active' => $limit->is_active,
                ];
            })
        ]);
    }

    /**
     * 复制限购配置
     *
     * @param int $id
     * @return \Illuminate\Http\JsonResponse
     */
    public function copy($id)
    {
        $limit = $this->repository()->newQuery()->find($id);

        if (!$limit) {
            return response()->json([
                'status' => false,
                'message' => '限购配置不存在'
            ]);
        }

        $newData = $limit->toArray();
        unset($newData['id'], $newData['created_at'], $newData['updated_at']);
        $newData['name'] = $newData['name'] . ' (副本)';
        $newData['is_active'] = false; // 副本默认为禁用状态

        $repository = $this->repository();
        $newLimit = $repository->createLimit($newData);

        return response()->json([
            'status' => true,
            'message' => '限购配置复制成功',
            'data' => [
                'id' => $newLimit->id,
                'name' => $newLimit->name
            ]
        ]);
    }
}