package main

import (
	"database/sql"
	"flag"
	"fmt"
	_ "github.com/go-sql-driver/mysql"
	"gopkg.in/gcfg.v1"
	tb "gopkg.in/tucnak/telebot.v2"
	"log"
	"time"
)

type Config struct {
	Telegram struct {
		URL   string
		Token string
	}
	SQL struct {
		Driver   string
		Type     string
		Address  string
		Username string
		Password string
		Database string
	}
	Rabbit struct {
		User     string
		Password string
		Host     string
		Queue    string
	}
	Bot struct {
		Admin     uint64
		Guildname string
		Guild     string
	}
}

var (
	config = flag.String("config", "chirpnest.cfg", "config file path")
	initdb = flag.Bool("initdb", false, "initialize bot database")

	db *sql.DB
	b  *tb.Bot

	cfg                 Config
	MQCWMsgQueue        chan ChatWarsMessage
	SQLMsgIdentifyQueue chan int64
	msgParsingRules     map[int]MessageParsingRule
)

func PrintText(m *tb.Message) {
	fmt.Printf("[%d] %s(%d) | %s(%d) : %s\n", m.ID, m.Chat.Title, m.Chat.ID, m.Sender.Username, m.Sender.ID, m.Text)
	return
}

func main() {
	log.Println("Starting Chirpnest...")

	// Parsing config
	flag.Parse()

	err := gcfg.ReadFileInto(&cfg, *config)
	failOnError(err, "Parsing config")

	// Connecting to DB
	switch cfg.SQL.Driver {
	case "mysql":
		db, err = sql.Open("mysql", cfg.SQL.Username+":"+cfg.SQL.Password+"@"+cfg.SQL.Type+"("+cfg.SQL.Address+")/"+cfg.SQL.Database+"?parseTime=true")
		failOnError(err, "Opening MySQL connection")
		defer db.Close()

	}

	// Check if any issue
	err = db.Ping()
	failOnError(err, "Checking MySQL connection")
	log.Println("SQL connection initialized")

	if *initdb {
		initDB()
	}
	resetMsgParsingRules()

	msgParsingRules, err = loadMsgParsingRules()
	logOnError(err, "Message parsing rules")

	// Registering bot
	b, err := tb.NewBot(tb.Settings{
		Token:  cfg.Telegram.Token,
		URL:    cfg.Telegram.URL,
		Poller: &tb.LongPoller{Timeout: 10 * time.Second},
	})
	failOnError(err, "Registering bot")
	log.Println("Bot registered")

	go BotHandlers(b)
	u := tb.User{
		ID: int(cfg.Bot.Admin),
	}
	b.Send(&u, "Bot restarted")

	MQCWMsgQueue = make(chan ChatWarsMessage, 100)
	SQLMsgIdentifyQueue = make(chan int64, 100)

	for w := 1; w <= MQGetMsgWorkers; w++ {
		go MQGetMsgWorker(w, MQCWMsgQueue)
	}
	for w := 1; w <= SQLCWMsgWorkers; w++ {
		go SQLCWMsgWorker(w, MQCWMsgQueue, SQLMsgIdentifyQueue)
	}
	for w := 1; w <= SQLIdentifyMsgWorkers; w++ {
		go SQLIdentifyMsgWorker(w, SQLMsgIdentifyQueue)
	}
	for w := 1; w <= SQLJobWorkers; w++ {
		go SQLJobWorker(w)
	}

	log.Println("Bot started !")

	// Main loop
	for {
		time.Sleep(1 * time.Second)
	}

}