<?php

namespace app\admin\controller;

use think\facade\View;
use think\facade\Db;
use app\common\model\FFCategories;
use app\common\model\FFProducts;

class FFProductsController extends Base
{
    /**
     * 商品列表
     */
    public function index()
    {
        if (request()->isAjax()) {
            $limit = input('param.limit', 15);
            $page = input('param.page', 1);
            $offset = ($page - 1) * $limit;
            $product_name = input('param.product_name', '');
            $status = input('param.status', '');
            $is_hot = input('param.is_hot', '');
            $is_new = input('param.is_new', '');
            $is_recommend = input('param.is_recommend', '');
            $category_name = input('param.category_name', '');

            $where = [];
            if ($product_name) {
                $where[] = ['product_name', 'like', "%{$product_name}%"];
            }
            if ($status !== '') {
                $where[] = ['status', '=', $status];
            }
            if ($is_hot !== '') {
                $where[] = ['is_hot', '=', $is_hot];
            }
            if ($is_new !== '') {
                $where[] = ['is_new', '=', $is_new];
            }
            if ($is_recommend !== '') {
                $where[] = ['is_recommend', '=', $is_recommend];
            }
            if ($category_name) {
                $where[] = ['category_name', 'like', "%{$category_name}%"];
            }

            $res = FFProducts::where($where)
                ->order('id', 'desc')
                ->limit($offset, $limit)
                ->select();

            $total = FFProducts::where($where)->count();

            return $this->renderTable('获取成功', $total, $res, 0);
        }

        return View::fetch('FFProducts/index');
    }

    /**
     * 添加商品
     */
    public function add()
    {
        if (request()->isPost()) {
            $param = input('post.');
            $validate = $this->validate($param, [
                'product_name' => 'require',
                'price' => 'require|float',
                'stock' => 'require|number',
            ]);

            if (true !== $validate) {
                return $this->renderError($validate);
            }
            
            // 处理多选的分类，转换为逗号分隔的字符串
            if (isset($param['categories']) && is_array($param['categories'])) {
                $param['category_name'] = implode(',', $param['categories']);
                unset($param['categories']);
            }

            // 设置默认值
            if (!isset($param['status'])) {
                $param['status'] = 1;
            }
            if (!isset($param['sales'])) {
                $param['sales'] = 0;
            }
            if (!isset($param['is_hot'])) {
                $param['is_hot'] = 0;
            }
            if (!isset($param['is_new'])) {
                $param['is_new'] = 0;
            }
            if (!isset($param['is_recommend'])) {
                $param['is_recommend'] = 0;
            }

            $res = FFProducts::create($param);
            if ($res) {
                return $this->renderSuccess('添加成功', ['url' => (string) url('ff_products')]);
            } else {
                return $this->renderError('添加失败');
            }
        }

        // 获取分类列表
        $categories = FFCategories::where('status', 1)
            ->order('sort_order', 'asc')
            ->select();
        View::assign('categories', $categories);
        
        return View::fetch('FFProducts/add');
    }

    /**
     * 编辑商品
     */
    public function edit()
    {
        $id = input('param.id', 0);
        $info = FFProducts::where('id', $id)->find();
        if (empty($info)) {
            return $this->renderError('数据不存在');
        }

        if (request()->isPost()) {
            $param = input('post.');
            $validate = $this->validate($param, [
                'product_name' => 'require',
                'price' => 'require|float',
                'stock' => 'require|number',
            ]);

            if (true !== $validate) {
                return $this->renderError($validate);
            }
            
            // 处理多选的分类，转换为逗号分隔的字符串
            if (isset($param['categories']) && is_array($param['categories'])) {
                $param['category_name'] = implode(',', $param['categories']);
                unset($param['categories']);
            }

            $res = FFProducts::update($param, ['id' => $id]);
            if ($res) {
                return $this->renderSuccess('编辑成功', ['url' => (string) url('ff_products')]);
            } else {
                return $this->renderError('编辑失败');
            }
        }

        // 获取分类列表
        $categories = FFCategories::where('status', 1)
            ->order('sort_order', 'asc')
            ->select()->toArray();
            
        // 将已有的分类名称转为数组
        $selectedCategories = [];
        if ($info['category_name']) {
            $selectedCategories = explode(',', $info['category_name']);
        }
        
        View::assign('categories', $categories);
        View::assign('selectedCategories', $selectedCategories);
        View::assign('info', $info);
        
        return View::fetch('FFProducts/edit');
    }

    /**
     * 修改商品状态（上架/下架）
     */
    public function status()
    {
        $id = input('param.id', 0);
        $status = input('param.status', 0);

        $res = FFProducts::update(['status' => $status], ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 修改热销状态
     */
    public function hot()
    {
        $id = input('param.id', 0);
        $is_hot = input('param.is_hot', 0);

        $res = FFProducts::update(['is_hot' => $is_hot], ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 修改新品状态
     */
    public function new()
    {
        $id = input('param.id', 0);
        $is_new = input('param.is_new', 0);

        $res = FFProducts::update(['is_new' => $is_new], ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 修改推荐状态
     */
    public function recommend()
    {
        $id = input('param.id', 0);
        $is_recommend = input('param.is_recommend', 0);

        $res = FFProducts::update(['is_recommend' => $is_recommend], ['id' => $id]);
        if ($res) {
            return $this->renderSuccess('操作成功');
        } else {
            return $this->renderError('操作失败');
        }
    }

    /**
     * 删除商品
     */
    public function del()
    {
        $id = input('param.id', 0);
        $res = FFProducts::destroy($id);
        if ($res) {
            return $this->renderSuccess('删除成功');
        } else {
            return $this->renderError('删除失败');
        }
    }
}