<?php

namespace App\Endpoint\Api\Http\Controllers;

use App\Endpoint\Api\Http\Resources\ShoppingCartItemResource;
use App\Exceptions\BizException;
use App\Models\ProductSku;
use Illuminate\Http\Request;

class ShoppingCartItemController extends Controller
{
    /**
     * 购物车商品列表
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function index(Request $request)
    {
        $items = $request->user()->shoppingCartItems()->with(['sku'])->has('sku')->latest('id')->get();

        return ShoppingCartItemResource::collection($items);
    }

    /**
     * 添加购物车商品
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $input = $request->validate([
            'sku_id' => ['bail', 'required'],
            'quantity' => ['bail', 'required', 'int', 'min:1'],
        ]);

        $sku = ProductSku::whereRelation('category', 'is_show', true)->online()->find($input['sku_id']);

        if ($sku === null) {
            throw new BizException(__('Product has been removed'));
        }

        $item = $request->user()->shoppingCartItems()->firstOrCreate([
            'sku_id' => $sku->id,
        ], [
            'quantity' => $input['quantity'],
        ]);

        if (! $item->wasRecentlyCreated) {
            $item->increment('quantity', $input['quantity']);
        }

        return response()->noContent();
    }

    /**
     * 修改购物车商品
     *
     * @param int $id
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function update($id, Request $request)
    {
        $input = $request->validate([
            'quantity' => ['bail', 'required', 'int', 'min:1'],
        ]);

        $item = $request->user()->shoppingCartItems()->findOrFail($id);

        $item->update($input);

        return response()->noContent();
    }

    /**
     * 删除购物车商品
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function delete(Request $request)
    {
        $input = $request->validate([
            'ids' => ['bail', 'required', 'array'],
        ]);

        $request->user()->shoppingCartItems()->whereIn('id', $input['ids'])->delete();

        return response()->noContent();
    }
}