// llmongo.go
package main

import (
	"flag"
	"fmt"
	"log"
	"os"
	"sync"
	"time"
)

const (
	_VERSION = "v2.7.2"
)

var (
	opts = Options{
		RedisTTL: time.Hour * 11688, // 16 mesi
		LogFile:  "log/llmongo.log",
	}

	loop []bool

	done    []chan bool
	consume []chan produced
	remove  []chan consumed

	wg sync.WaitGroup

	count *Counter
)

func main() {
	flag.Usage = usage
	flag.Parse()

	if opts.Version {
		fmt.Println(os.Args[0], _VERSION)
		os.Exit(0)
	}

	if opts.Hostname == "" {
		var err error
		opts.Hostname, err = os.Hostname()
		if err != nil {
			fmt.Println("Hostname error: ", err.Error())
		}
	}

	setTerm()

	fs, err := os.OpenFile(opts.LogFile, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0666)
	if err != nil {
		fmt.Println("Log file error: ", err.Error())
		os.Exit(-4)
	}
	defer fs.Close()

	log.SetOutput(fs)

	// DA VERIFICARE
	pid.Write(true)
	defer pid.Remove()

	start := time.Now()
	fmt.Printf("Start: %+v\n", opts)
	log.Printf("Start: %+v\n", opts)

	opts.Month = start.Format("0601")

	dbs.poolRedis()
	defer dbs.rdb.Close()

	dbs.connectMongo()
	defer dbs.mdb.Close()

	if opts.Timeout > 0 {
		time.AfterFunc(opts.Timeout, exit)
	}

	count = NewCounter()

	for i := 0; i < opts.Concurrent; i++ {
		consume = append(consume, make(chan produced))
		remove = append(remove, make(chan consumed))
		loop = append(loop, true)
		done = append(done, make(chan bool))

		go producer(i)
		go consumer(i)
		go remover(i)
	}

	for i := 0; i < opts.Concurrent; i++ {
		<-done[i]
		fmt.Printf("Done %d\n", i)
		close(done[i])
	}

	fmt.Println("Waiting WG")
	for i := 0; i < opts.Concurrent; i++ {
		fmt.Printf("ID (%d): %d\n", i, count.GetWG(i))
	}
	wg.Wait()

	count.SetTime(time.Since(start))

	fmt.Printf("Stop %v - user: %d - login: %d - errors: %d - rem: %d - duplicate: %d\n\r", count.GetTime(), count.GetUser(), count.GetLog(), count.GetErr(), count.GetRem(), count.GetDup())
	log.Printf("Stop %v - user: %d - login: %d - errors: %d - rem: %d - duplicate: %d\n\r", count.GetTime(), count.GetUser(), count.GetLog(), count.GetErr(), count.GetRem(), count.GetDup())

	if opts.Influxdb != "" {
		writeStats(start)
	}

	if opts.Xymon != "" {
		sendStatus()
	}
}