package main

import (
	"database/sql"
	"flag"
	"fmt"
	"log"
	"math/rand"
	"sync"
	"time"

	"gopkg.in/gcfg.v1"

	_ "github.com/go-sql-driver/mysql"
	tb "gopkg.in/tucnak/telebot.v2"
)

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
		Path     string
	}
	Bot struct {
		Admin       int64
		Guildname   string
		Guild       string
		Mainchat    int64
		Depositchat int64
	}
}

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

	RndSrc *rand.Rand
	RndMux sync.Mutex

	MQCWMsgQueue        chan ChatWarsMessage
	SQLMsgIdentifyQueue chan int64
	TGCmdQueue          chan TGCommand
	MQTGCmdQueue        chan TGCommand
	JobQueue            chan Job

	msgParsingRules map[int]MessageParsingRule

	clients    map[int64]*ChirpClient
	muxClients sync.RWMutex

	callbacks    map[int64]map[int64][]int64
	muxCallbacks sync.Mutex

	gDepositForwardMux sync.Mutex
	gDepositForwardMsg []int64
)

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()

	// randomize
	RndSrc = rand.New(rand.NewSource(time.Now().UTC().UnixNano()))

	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()
		_, _ = addObjCastle(`🦌`, `Deerhorn`)
		_, _ = addObjCastle(`🐉`, `Dragonscale`)
		_, _ = addObjCastle(`🦅`, `Highnest`)
		_, _ = addObjCastle(`🌑`, `Moonlight`)
		_, _ = addObjCastle(`🥔`, `Potato`)
		_, _ = addObjCastle(`🦈`, `Sharkteeth`)
		_, _ = addObjCastle(`🐺`, `Wolfpack`)
		_, _ = addObjCastle(`⛔`, `Unknwon`)
		_, _ = addObjGuild(``, `No Guild`)
	}

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

	err = loadObjCastle()
	logOnError(err, "Caching castles")

	err = loadObjGuild()
	logOnError(err, "Caching guilds")

	err = loadObjUser()
	logOnError(err, "Caching user")

	err = loadObjItem()
	logOnError(err, "Caching items")

	err = loadObjMsg()
	logOnError(err, "Caching msgs")

	// 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")

	log.Printf("URL : %s\n", b.URL)
	log.Printf("Token : %s\n", b.Token)

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

	MQCWMsgQueue = make(chan ChatWarsMessage, MQCWMsgQueueSize)
	SQLMsgIdentifyQueue = make(chan int64, SQLMsgIdentifyQueueSize)
	TGCmdQueue = make(chan TGCommand, TGCmdQueueSize)
	MQTGCmdQueue = make(chan TGCommand, MQTGCmdQueueSize)
	JobQueue = make(chan Job, JobQueueSize)
	clients = make(map[int64]*ChirpClient)
	callbacks = make(map[int64]map[int64][]int64)

	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 <= JobWorkers; w++ {
		go JobWorker(w, JobQueue)
	}
	for w := 1; w <= TGCmdWorkers; w++ {
		go TGCmdWorker(w, b, TGCmdQueue)
	}
	for w := 1; w <= MQTGCmdWorkers; w++ {
		go MQTGCmdWorker(w, MQTGCmdQueue)
	}
	go SQLJobWorker()
	go MQKeepAliveWorker()
	go MQTidyKeepAliveWorker()

	log.Println("Bot started !")

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

}