const Automate = require('sequelize-automate-freesun')
const moment = require('moment');

async function handleTask(app, task) {
    try {
        const { models } = app.fs.dc
        const dataSource = await models.DataSource.findOne({
            where: {
                id: task.dataSourceId
            }
        });

        if (dataSource) {
            const dbOptions = createDbOptions(dataSource.config);
            const automate = new Automate(dbOptions, {});
            const tables = await automate.getTables()

            //创建或更新库元数据
            const dataToSave = {
                code: dataSource.config.database,
                name: dataSource.config.database,
                catalog: dataSource.mountPath,
                parent: null,
                description: null,
                type: "库",
                createBy: 1,
                createAt: moment(),
                updateAt: null,
                user: { id: 1, name: "超级管理员", username: "SuperAdmin" },
                attributesParam: null
            }
            // const databaseRslt = await models.MetadataDatabase.create(dataToSave)
            //创建或更新表元数据
            //创建或更新字段&索引&外键元数据
            // MetadataDatabase

            // console.log(databaseRslt)
        }
    } catch (error) {
        app.fs.logger.error(`sechedule: handleTask, error: ${error}`);
    }
}

function createDbOptions(params) {
    const dbOptions = {
        database: params.database,
        username: params.user,
        password: params.password,
        dialect: 'postgres',
        host: params.host,
        port: params.port,
        define: {
            underscored: false,
            freezeTableName: false,
            charset: 'utf8mb4',
            timezone: '+00: 00',
            dialectOptions: {
                collate: 'utf8_general_ci',
            },
            timestamps: false,
        },
    }
    return dbOptions

}

module.exports = { handleTask }