import betterSqlite3 from 'better-sqlite3'
import { raw } from 'express'
import mongoose from 'mongoose'
import Finish from '../schemas/Finishes.js'
import Level from '../schemas/Level.js'
import Player from '../schemas/Player.js'

function log(string) {
    console.log(`sqlite2mongo >>> ${string}`)
}

export default async function() {
    log("Reconstructing the Database!")
    await mongoose.connect(
        process.env.MONGO_URI,
        {
            useNewUrlParser: true,
            useUnifiedTopology: true
        }
    ).then(async () => {
        log("Connected to mongodb!")

        const sqlite = new betterSqlite3('ddnet.sqlite')
        log("Initialised sqlite!")

        log("Adding levels (maps)...")
        const latestMapAddition = (await Level.findOne({}).sort({ "release": "desc" })).release.toISOString().replace(/[TZ]/g, " ").replace(/\.[0-9\s]+/, "")
        const allMaps = sqlite.prepare("SELECT Map, Server, Points, Stars, Mapper, Timestamp FROM maps WHERE Timestamp > ? ORDER BY Timestamp").iterate(`datetime('${latestMapAddition}')`)
        const newMapAmount = sqlite.prepare("SELECT count(Map) FROM maps WHERE Timestamp > ? ORDER BY Timestamp").get(`datetime('${latestMapAddition}')`)['count(Map)']
        let addedMapCount = 0
        console.log({ allMaps, newMapAmount, addedMapCount })
        for (let map of allMaps) {
            log("OOMPA")
            Level.create({
                name: map.Map,
                mapper: map.Mapper,
                release: map.Timestamp === '0000-00-00 00:00:00' ? new Date('January 1, 1970 00:00:00 UTC') : new Date(map.Timestamp),
                category: map.Server,
                rating: map.Stars,
                awardPoints: map.Points
            }).then(() => {
                ++addedMapCount
                log(`Adding map ${addedMapCount}/${newMapAmount} -> ${map.Map}`)
            })
        }

        // log("Adding players...")
        // let addedPlayerCount = 0
        // const allPlayers = sqlite.prepare(`SELECT distinct Name FROM race LIMIT 10000`).iterate()
        // for (const player of allPlayers) {
        //     Player.create({
        //         name: player.name
        //     }).then(() => {
        //         ++addedPlayerCount
        //         log(`Adding player ${addedPlayerCount}/10000 -> ${player.Name}`)
        //     })
        // }

//     log("Adding finishes (races)...")
//     const rows = sqlite.prepare("SELECT count(Name) FROM race;").get()['count(Name)']
//     let addedFinishCount = 0

//     for (let i = 0; i < rows; i += 5000) {
//         const allFinishes = sqlite.prepare(`SELECT Map, Name, Time, Timestamp, Server FROM race LIMIT 5000 OFFSET ${i + 1}`).all()
//         for (let finish of allFinishes) {
//             Level.findOne({ name: finish.Map }).then(map => {
//                 Player.findOne({ name: finish.Name }).then(async player => {
//                     await Finish.create({
//                         map: map._id,
//                         time: finish.Time,
//                         date: finish.Timestamp === '0000-00-00 00:00:00' ? new Date('January 1, 1970 00:00:00 UTC') : new Date(finish.Timestamp),
//                         players: player._id
//                     })
//                     ++addedFinishCount
//                     log(`Adding race ${addedFinishCount}/${rows} -> ${finish.Name} @ ${finish.Map}`)
//                 })
//             })
//         }
//     }
    })
}