'use strict';
const balanceUtil = require('./util.js');

module.exports = {
    /**
     * 新增资金流水
     * @url admin/finance/balance/sys/add 前端调用的url参数地址
     */
    main: async (event) => {
        let { data = {}, userInfo, util } = event;
        let { vk } = util;
        const transaction = await vk.baseDao.startTransaction();

        try {
            const description = String(data.description || '').trim();
            if (!description) {
                throw new Error('说明不能为空');
            }
            const logData = {
                description,
                amount: balanceUtil.normalizeAmount(data.amount),
                type: balanceUtil.normalizeType(data.type),
                logTime: balanceUtil.normalizeTime(data.logTime),
                operatorId: userInfo && userInfo.uid ? userInfo.uid : '',
                source: data.source || 'manual'
            };
            const changeAmount = balanceUtil.buildBalanceChange(logData);
            await balanceUtil.checkBalanceAvailable({
                transaction,
                vk,
                changeAmount
            });

            const addRes = await vk.baseDao.add({
                db: transaction,
                dbName: 'jjx-balance-log',
                dataJson: logData
            });

            await balanceUtil.updateBalanceWithDelta({
                transaction,
                vk,
                delta: changeAmount,
                lastLogId: addRes.id
            });

            await transaction.commit();
            return { code: 0, msg: '' };
        } catch (err) {
            return await balanceUtil.rollbackTransaction({
                transaction,
                err
            });
        }
    }
};