'use strict';

/**
 * 消息数据模型
 *
 * @author CaiAoLin
 * @date 2017/11/23
 * @version
 */
module.exports = app => {

    class Message extends app.BaseService {

        /**
         * 构造函数
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        constructor(ctx) {
            super(ctx);
            this.tableName = 'message';
        }

        /**
         * 规则
         *
         * @return {Object} - 返回规则
         */
        rule() {
            return {
                title: { type: 'string', required: true, allowEmpty: false },
                content: { type: 'string', required: false, allowEmpty: true },
                istop: { type: 'string', required: false, allowEmpty: true },
            };
        }

        /**
         * 查询过虑
         *
         * @param {Object} data - 筛选表单中的get数据
         * @return {void}
         */
        searchFilter(data, project_id) {
            this.initSqlBuilder();

            // 状态筛选
            data.type = parseInt(data.type);
            data.type = isNaN(data.type) || data.type <= 0 ? 1 : data.type;
            // 获取用户数据
            this.sqlBuilder.setAndWhere('type', {
                value: data.type,
                operate: '=',
            });
            this.sqlBuilder.setAndWhere('project_id', {
                value: project_id,
                operate: '=',
            });
        }

        /**
         * 获取消息数据
         *
         * @param {Number} startTime - 时间标记位(获取这个时间点之后的数据)
         * @return {Array} - 返回消息数据
         */
        async getMessage(startTime, project_id) {
            this.initSqlBuilder();
            this.sqlBuilder.setAndWhere('release_time', {
                value: startTime,
                operate: '>=',
            });

            // 获取用户数据
            this.sqlBuilder.setAndWhere('project_id', {
                value: project_id,
                operate: '=',
            });

            // 获取用户数据
            this.sqlBuilder.setAndWhere('type', {
                value: 1,
                operate: '=',
            });

            const [sql, sqlParam] = this.sqlBuilder.build(this.tableName);
            const result = await this.db.query(sql, sqlParam);

            return result;
        }

        /**
         * 修改通知信息
         *
         * @param {Object} data - post过来的数据
         * @return {Boolean} - 返回修改结果
         */
        async save(id, data, user, projectId) {
            if (data._csrf_j !== undefined) {
                delete data._csrf_j;
            }
            if (id > 0) {
                // 修改操作时
                data.id = id;
                const msgInfo = await this.getDataById(id);
                data.istop = parseFloat(msgInfo.istop) === 0 && parseInt(data.istop) === 1 ? data.create_time : data.istop === undefined ? 0 : msgInfo.istop;
                delete data.create_time;
            } else {
                data.release_time = data.create_time;
                data.project_id = projectId;
                data.create_uid = user.accountId;
                data.creator = user.name;
                data.istop = parseInt(data.istop) === 1 ? data.create_time : 0;
            }
            const operate = id === 0 ? await this.db.insert(this.tableName, data) :
                await this.db.update(this.tableName, data);

            const result = operate.affectedRows > 0;

            return result;
        }

        /**
         * 修改通知信息
         *
         * @param {Object} data - post过来的数据
         * @return {Boolean} - 返回修改结果
         */
        async getMsgList(projectId, limit = 5, offset = 0, type = 1) {
            if (type === 1) {
                const sql = 'SELECT * FROM ?? WHERE `project_id` = ? AND `type` = ? ORDER BY CONCAT(`istop`,`release_time`) DESC LIMIT ?,?';
                const sqlParam = [this.tableName, projectId, type, offset, limit];
                return await this.db.query(sql, sqlParam);
            }

            const sql = 'SELECT * FROM ?? WHERE `type` = ? AND `status` = ? ORDER BY `release_time` DESC LIMIT ?,?';
            const sqlParam = [this.tableName, type, 1, offset, limit];
            return await this.db.query(sql, sqlParam);
        }
    }

    return Message;
};