<?php
declare (strict_types = 1);

namespace app\admin\controller\v1;

use app\admin\model\v1\ProductModel;
use app\admin\model\v1\ProductParamsModel;
use app\admin\model\v1\ProductRelatedModel;
use app\admin\validate\v1\ProductValidate;

class Product
{
    // 分页列表
    public function index()
    {
        $param = request()->get([
            'name',
            'spu',
            'category_id',
            'created_at',
            'is_show',
            'page/d' => 1, 
            'size/d' => 10
        ]);

        $validate = new ProductValidate();
        if (!$validate->scene('index')->check($param)) {
            return error($validate->getError());
        }

        $products = ProductModel::field([
                'id',
                'name',
                'cover_image',
                'spu',
                'category_id',
                'sort',
                'is_new',
                'is_hot',
                'is_sale',
                'is_show',
                'stock_qty',
                'status',
                'created_at'
            ])
            ->with('category')
            ->language(request()->lang_id)
            ->withSearch(['name_nullable', 'spu_nullable', 'created_at_nullable'], [
                'name_nullable'       => $param['name']??null,
                'spu_nullable'        => $param['spu']??null,
                'created_at_nullable' => !empty($param['created_at']) ? explode(',', $param['created_at']) : null,
            ])
            ->categoryNullable($param['category_id']??null)
            ->isShowNullable(isset($param['is_show']) ? (bool)$param['is_show'] : null)
            ->order(['sort' => 'asc', 'id' => 'desc'])
            ->paginate([
                'list_rows' => $param['size'],
                'page'      => $param['page'],
            ])
            ->bindAttr('category', ['category_name' => 'name'])
            ->hidden(['category_id', 'category']);

        return success('获取成功', $products);
    }

    // 产品详情
    public function read()
    {
        $product = ProductModel::withoutField([
                'language_id',
                'created_at',
                'updated_at',
                'deleted_at'
            ])
            ->bypk(request()->param('id'))
            ->find();
        if (empty($product)) {
            return error('产品不存在');
        }

        // 获取产品参数
        $params = [];
        $product_params = ProductParamsModel::productId($product->id)->select();
        foreach ($product_params as $val) {
            $params[] = implode(":", [$val->name, $val->value]);
        }
        $product->params = implode(PHP_EOL, $params);

        // 获取关联产品
        $product->related = ProductRelatedModel::field([
                'related_product_id', 
                'sort'
            ])
            ->productId($product->id
            )->select();

        return success('获取成功', $product);
    }

    // 更新
    public function update()
    {
        $id  = request()->param('id');
        $put = request()->put([
            'category_id',
            'spu',
            'name',
            'short_name',
            'cover_image',
            'desc',
            'video_img',
            'video_url',
            'is_sale',
            'is_new',
            'is_hot',
            'is_show',
            'sort',
            'detail',
            'params' => '',
            'related' => '',
            'status' => 1,
            'seo_title',
            'seo_keywords',
            'seo_desc'
        ]);

        $validate   = new ProductValidate();
        $check_data = array_merge($put, [
            'id'          => $id,
            'language_id' => request()->lang_id
        ]);
        if (!$validate->scene('update')->check($check_data)) {
            return error($validate->getError());
        }

        $product = ProductModel::bypk($id)->find();
        if (is_null($product)) {
            return error('请确认操作对象是否存在');
        }
        if (!$product->save($put)) {
            return error('操作失败');
        }

        // 更新产品参数
        if ($put['params'] != "") {
            ProductParamsModel::productId($id)->delete();
            if (preg_match_all('/(\w+):(.[^\n|\r|\r\n]+)/', $put['params'], $match_result)) {
                $params = [];
                for ($i = 0; $i < count($match_result[0]); $i++) {
                    $params[] = [
                        'product_id' => $id,
                        'name'       => $match_result[1][$i],
                        'value'      => $match_result[2][$i]
                    ];
                }
                if (!empty($params)) ProductParamsModel::insertAll($params);
            }
        }

        // 更新关联产品
        if ($put['related'] != "") {
            ProductRelatedModel::productId($id)->delete();
            $encode_result = json_decode($put['related'], true);
            if (!empty($encode_result)) {
                $related = [];
                foreach ($encode_result as $val) {
                    $related[] = [
                        'product_id'         => $id,
                        'related_product_id' => $val['related_product_id'],
                        'sort'               => $val['sort']
                    ];
                }
                if (!empty($related)) ProductRelatedModel::insertAll($related);
            }
        }

        return success('操作成功');
    }

    // 上下架操作
    public function updownShelves()
    {
        $id = request()->param('id');
        $product = ProductModel::bypk($id )->find();
        if (empty($product)) {
            return error('请确认操作对象是否存在');
        }

        $product->is_show = (int)!$product->is_show;
        if (!$product->save()) {
            return error('操作失败');
        }

        return success('操作成功');
    }

    // 删除
    public function delete()
    {
        $product = ProductModel::bypk(request()->param('id'))->find();
        if (empty($product)) {
            return error('请确认操作对象是否存在');
        }

        // 软删除
        if (!$product->delete()) {
            return error('操作失败');
        }

        return success('操作成功');
    }
}