package main

import (
	"fmt"
	"os"
	"os/signal"
	"strings"
	"syscall"

	"github.com/bwmarrin/discordgo"
	"github.com/devawaves/snake-go/commands"
	"github.com/joho/godotenv"
)

func main() {
	err := godotenv.Load()
	errorCheck(err)
	token := os.Getenv("DISCORD_TOKEN")

	discord, err := discordgo.New("Bot " + token)
	errorCheck(err)

	discord.AddHandler(messageCreate)

	discord.Identify.Intents = discordgo.IntentsGuildMessages
	err = discord.Open()
	errorCheck(err)

	fmt.Println("Bot is running...")
	sc := make(chan os.Signal, 1)
	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
	<-sc

	discord.Close()
}

func errorCheck(err error) {
	if err != nil {
		fmt.Println("er! " + err.Error())
		os.Exit(1)
	}
}

func messageCreate(session *discordgo.Session, msg *discordgo.MessageCreate) {
	if msg.Author.ID == session.State.User.ID {
		return
	}

	for _, command := range commands.Commands {
		potential_command := strings.ToLower(msg.Content)
		last_command_index := strings.Index(potential_command, " ")

		if last_command_index == -1 {
			last_command_index = len(potential_command)
		}

		potential_command = potential_command[:last_command_index]

		if potential_command == "$" + command.Name {
			command.Handler(session, msg)
		}
	}
}