'use strict';

/**
 *
 *
 * @author Mai
 * @date 2018/9/26
 * @version
 */

const settingConst = require('../const/setting.js');

module.exports = app => {
    class Category extends app.BaseService {
        /**
         * 构造函数
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        constructor(ctx) {
            super(ctx);
            this.tableName = 'category';
        }

        async addCategory(pid, name, type) {
            const count = await this.count({pid: pid, name: name});
            if (count > 0) {
                throw '存在同名类别';
            }

            const category = {
                pid: pid,
                name: name,
                type: type,
            };
            const result = await this.db.insert(this.tableName, category);
            if (result.affectedRows !== 1) {
                throw '提交数据失败';
            } else {
                category.id = result.insertId;
            }

            category.value = category.value && category.value !== '' ? JSON.parse(category.value) : [];
            return category;
        }

        async getCategory(condition) {
            const data = await this.getDataByCondition(condition);
            data.value = data.value && data.value !== '' ? JSON.parse(data.value) : [];
            return data;
        }

        async getAllCategory(condition) {
            const data = await this.getAllDataByCondition(condition);
            for (const d of data) {
                d.value = d.value && d.value !== '' ? JSON.parse(d.value) : [];
            }
            return data;
        }

    }

    return Category;
};