'use strict';

/**
 * 变更新增部位插入记录表
 *
 * @author Mai
 * @date
 * @version
 */

module.exports = app => {

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

        async saveHistory(transaction, data) {
            await transaction.insert(this.tableName, {
                tid: data.tid,
                cpid: data.id,
                info_json: JSON.stringify(data),
            });
        }

        async returnHistory(transaction, cpid) {
            const data = await transaction.get(this.tableName, { cpid });
            if (!data) throw '撤销前数据不存在，无法撤销';
            const change_update = {};
            const oldInfo = JSON.parse(data.info_json);
            for (const key in oldInfo) {
                if (key !== 'in_time') {
                    change_update[key] = oldInfo[key];
                }
            }
            await transaction.update(this.ctx.service.changeProject.tableName, change_update);
        }
    }

    return ChangeProjectHistory;
};