import {MongoClient} from "mongodb";
import * as ramda from 'ramda'
import fs from "fs";

let R = ramda

async function start() {
    //连接mongodb
    let client = await MongoClient.connect('mongodbUrl');

    console.log('链接成功')

    let a: any = {}

    for (let i = 1; i < 20; i++) {
        let dbName = `blacklagoon_s${i}`
        console.log(dbName)
        let mongodb = client.db(dbName);
        a[dbName] = {};
        (await mongodb.collection('email').find({type: 'gm', uid: 'system'}).toArray()).map(i => {
            a[dbName][i.title] = R.compose(R.map(i => ({[i[0]]: i.length})), R.values, R.filter(i => i.length > 1), R.groupBy(i => i))(i.prizelist)
            console.log(a[dbName][i.title])
        })
        console.log(dbName, '查询完成')
    }

    fs.writeFileSync('tab.json', JSON.stringify(a, null, 2))
}

//定义全局变量
// ctor();
//启动服务
start().then(() => {
    process.exit()
});