package discord

import (
	"fmt"
	"log"
	"os"
	"os/signal"
	"ticket-pimp/discord/handler"
	"ticket-pimp/internal/domain"
	"ticket-pimp/internal/services"

	tickets "ticket-pimp/internal/storage/db/tickets"

	"github.com/bwmarrin/discordgo"
)

func initBotWith(token string) (*discordgo.Session, error) {
	discord, err := discordgo.New("Bot " + token)
	if err != nil {
		return nil, err
	}
	return discord, nil
}

type DiscordOptions struct {
	TicketsRepo  *tickets.Queries
	GitService   *services.Git
	CloudService *services.Cloud
	Coda         *services.Coda
	AppConfig    *domain.Config
}

func Run(conf domain.Config, opts DiscordOptions) error {
	token := conf.Discord.Token

	session, err := initBotWith(token)
	if err != nil {
		return err
	}

	router := handler.InitRouter(opts.GitService)

	commandHandlers := map[string]func(s *discordgo.Session, i *discordgo.InteractionCreate){}
	for _, handler := range router.Routes {
		commandHandlers[handler.Command.Name] = handler.Handler
	}
	session.AddHandler(func(s *discordgo.Session, i *discordgo.InteractionCreate) {
		if h, ok := commandHandlers[i.ApplicationCommandData().Name]; ok {
			h(s, i)
		}
	})

	// for _, h := range router.Routes {
	// 	session.AddHandler(h.Handler) // [ ] Как-то я неправильно хэндлеры добавляю, на проджект отрабатывает /repo
	// }

	if err := session.Open(); err != nil {
		return fmt.Errorf("cannot open the session: %v", err)
	}

	log.Println("Adding commands...")
	var cmds []*discordgo.ApplicationCommand
	for _, h := range router.Routes {
		cmd, err := session.ApplicationCommandCreate(session.State.User.ID, "", &h.Command)
		if err != nil {
			log.Panicf("Cannot create '%v' command: %v", h.Command.Name, err)
		}
		cmds = append(cmds, cmd)
	}

	log.Println("Following commands added:")
	log.Println(cmds)
	defer session.Close()
	stop := make(chan os.Signal, 1)
	signal.Notify(stop, os.Interrupt)
	<-stop
	log.Println("Graceful shutdown")

	log.Println("Removing commands...")
	for _, h := range cmds {
		err = session.ApplicationCommandDelete(session.State.User.ID, "", h.ID)
		if err != nil {
			log.Panicf("Cannot delete '%v' command: %v", h.Name, err)
		}
	}

	return nil
}