package main

import (
	"context"
	"flag"
	"fmt"
	"sync"

	"wave_record/comtrade"
	"wave_record/config"
	"wave_record/database"
	"wave_record/log"
	"wave_record/util"

	"go.mongodb.org/mongo-driver/mongo"
	"go.uber.org/zap"

	"github.com/panjf2000/ants/v2"
)

var (
	comtradeConfigDir  = flag.String("comtrade_config_dir", "./config", "config file dir of wave record project")
	comtradeConfigName = flag.String("comtrade_config_name", "config", "config file name of wave record project")
	comtradeConfigType = flag.String("comtrade_config_type", "yaml", "config file type of wave record project")
)

var (
	waveRecordConfig config.WaveRecordConfig
	addChannel       chan string
	comtradeMap      sync.Map
	mongoDBClient    *mongo.Client
	logger           *zap.Logger
)

func init() {
	addChannel = make(chan string, 10)
}

func main() {
	flag.Parse()
	ctx := context.TODO()

	waveRecordConfig = config.ReadAndInitConfig(*comtradeConfigDir, *comtradeConfigName, *comtradeConfigType)

	// init mongoDBClient
	mongoDBClient = database.GetMongoDBInstance(ctx, waveRecordConfig.MongoDBURI)

	// init logger
	logger = log.GetLoggerInstance(waveRecordConfig.LCfg)

	defer func() {
		if err := mongoDBClient.Disconnect(ctx); err != nil {
			panic(err)
		}
	}()

	defer logger.Sync()

	defer ants.Release()

	pool, err := ants.NewPoolWithFunc(waveRecordConfig.ParseConcurrentQuantity, comtrade.ParseFunc)
	if err != nil {
		fmt.Println(err)
		return
	}

	for i := 0; i < 15; i++ {
		if err = pool.Invoke(i); err != nil {
			fmt.Println(err)
		}
	}

	go util.DirWatch(waveRecordConfig.MonitorDir, addChannel)

	comtrade.ParseComtradeFile(waveRecordConfig.MonitorDir, addChannel, &comtradeMap)
}