package main

import (
	"context"
	"github.com/go-redis/redis/v8"
	"github.com/rs/zerolog"
	"github.com/rs/zerolog/log"
	"gopkg.in/tucnak/telebot.v3"
	"gopkg.in/tucnak/telebot.v3/layout"
	"gorm.io/driver/postgres"
	"gorm.io/gorm"
	"muskrat/bot"
	"muskrat/bot/handlers"
	"muskrat/storage"
	"muskrat/types"
	"muskrat/userbot"
	"os"
	"strconv"
	"time"
)

func main() {
	// Log settings
	zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
	pretty, err := strconv.ParseBool(os.Getenv("LOG_PRETTY"))
	if err != nil {
		pretty = false
	}
	if pretty {
		log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
	}
	switch os.Getenv("LOG_LEVEL") {
	case "DISABLED":
		zerolog.SetGlobalLevel(zerolog.Disabled)
	case "PANIC":
		zerolog.SetGlobalLevel(zerolog.PanicLevel)
	case "FATAL":
		zerolog.SetGlobalLevel(zerolog.FatalLevel)
	case "ERROR":
		zerolog.SetGlobalLevel(zerolog.ErrorLevel)
	case "WARN":
		zerolog.SetGlobalLevel(zerolog.WarnLevel)
	case "DEBUG":
		zerolog.SetGlobalLevel(zerolog.DebugLevel)
	case "TRACE":
		zerolog.SetGlobalLevel(zerolog.TraceLevel)
	default:
		zerolog.SetGlobalLevel(zerolog.InfoLevel)
	}

	// Postgres
	storage.DB, err = gorm.Open(postgres.Open(os.Getenv("POSTGRES_DSN")), &gorm.Config{})
	if err != nil {
		log.Fatal().Err(err).Send()
	}
	// Connection pools
	db, err := storage.DB.DB()
	if err != nil {
		log.Fatal().Err(err).Send()
	}
	db.SetMaxIdleConns(10)
	db.SetMaxOpenConns(100)
	db.SetConnMaxLifetime(time.Hour)

	err = storage.DB.AutoMigrate(&types.Account{})
	if err != nil {
		log.Fatal().Err(err).Send()
	}

	// Redis
	redisURI, err := redis.ParseURL(os.Getenv("REDIS_URI"))
	if err != nil {
		log.Fatal().Str("module", "redis").Err(err).Send()
	}
	storage.Redis = redis.NewClient(redisURI)
	defer storage.Redis.Close()
	err = storage.Redis.Ping(context.TODO()).Err()
	if err != nil {
		log.Fatal().Str("module", "redis").Err(err).Send()
	}

	// Userbots
	accounts := make([]types.Account, 0)
	storage.DB.Find(&accounts)

	userbot.Userbots = make(map[int64]*userbot.Userbot)

	for _, account := range accounts {
		current := account

		userbot.Userbots[account.ID] = &userbot.Userbot{
			Account: &current,
		}

		err = userbot.Userbots[account.ID].Start(context.Background())
		if err != nil {
			storage.DB.Unscoped().Delete(&current)
			userbot.Userbots[account.ID].Stop()
			delete(userbot.Userbots, account.ID)
		}
	}

	// Layout
	bot.Layout, err = layout.New("assets/layout.yml")
	if err != nil {
		log.Fatal().Str("module", "bot").Err(err).Send()
	}

	// Bot
	bot.Bot, err = telebot.NewBot(bot.Layout.Settings())
	if err != nil {
		log.Fatal().Str("module", "bot").Err(err).Send()
	}

	// Middlewares
	bot.Bot.Use(bot.Layout.Middleware("ru"))

	// Handlers
	bot.Bot.Handle("/add", handlers.Add)
	bot.Bot.Handle("/delete", handlers.Delete)
	bot.Bot.Handle("/adel", handlers.AdminDelete)
	bot.Bot.Handle("\frules_accept", handlers.Accept)
	bot.Bot.Handle("\faccount", handlers.Account)
	bot.Bot.Handle("\fedit", handlers.Edit)
	bot.Bot.Handle("\fdelete", handlers.DeleteButton)

	bot.Bot.Handle(telebot.OnText, handlers.Router)

	bot.Bot.Start()
}