const dbUtils = require('../utils/db-util')

const menus = {
    async ceateMenu(model) {
        let result = await dbUtils.insertData('category', model);
        return result;
    },
    // async deleteMenu(id) {
    //     let result = await dbUtils.deleteDataById('category', id);
    //     if (result.serverStatus == 2) {
    //         result = true
    //     } else {
    //         result = false
    //     }
    // },
    deleteMenu(id,subList,fix) {
        let sql = [];
        sql.push('DELETE FROM category WHERE id = '+id);
        if(subList){
            for (let i = 0; i < subList.length; i++) {
                sql.push("UPDATE category SET belongto='"+fix+"' WHERE id = "+subList[i].id);
            }
        }
        console.log(sql)
        return new Promise((resolve,reject)=>{
            dbUtils.execTrans(sql,(err)=>{
                if (err){
                    resolve(false);
                } else {
                    resolve(true)
                }
            })
        })
    },
    /**
     * 更新菜单信息
     * @param  {object} model 数据模型
     * @return {object}       mysql执行结果
     */
    async update(model, id) {
        let result = await dbUtils.updateData('category', model, id)
        if (result.serverStatus == 2) {
            result = true
        } else {
            result = false
        }
        return result
    },
    /**
     * 获取所有菜单
     */
    async getAllMenus() {
        let _sql = `SELECT * from category;`;
        let result = await dbUtils.query(_sql);
        if (Array.isArray(result)) {
            result = result
        } else {
            result = null;
        }
        return result
    },

    async getMenusByID(id) {
        let _sql = `
  SELECT * from category
    where id="${id}";`;
        let result = await dbUtils.query(_sql);
        if (Array.isArray(result) && result.length > 0) {
            result = result
        } else {
            result = null;
        }
        return result
    },

    /**
     * 获取子菜单
     * 0： 主菜单
     * 1： 属于ID:1的子菜单
     * 2： 属于ID:2的子菜单
     */

    async getMenusByBelongTo(belongto) {
        let _sql = `
  SELECT * from category
    where belongto="${belongto}";`;
        let result = await dbUtils.query(_sql);
        if (Array.isArray(result) && result.length > 0) {
            result = result
        } else {
            result = null;
        }
        return result
    },

}

module.exports = menus