package core

import (
	"github.com/bwmarrin/discordgo"
	"log"
)

// represent a command to input to the bot through a Discord message
type Command struct {
	name string // name identifier
	desc string // description
	example string // usage example
	command func(
		s *discordgo.Session,
		m *discordgo.MessageCreate,
		message string) // command (a callback)
}

// register containing commands associated with their aliases
var CommandRegister = make(
	map[string]Command)

// associate a Command with an alias within the command register
func SetCommand(
	aliases []string,
	desc string,
	example string,
	command func(s *discordgo.Session, m *discordgo.MessageCreate, message string)) {
	for _, alias := range aliases {
		c := Command{
			name: alias,
			desc: desc,
			example: example,
			command: command}
		CommandRegister[alias] = c
		log.Printf("added %s to Register", alias)
	}
}

// add commands to the register
func CommandInit() {
	SetCommand(
		[]string{"ggd audio", "ggd tts"},
		"*Attach a TTS version of the message on the channel*",
		"`ggd [audio|tts] hello everyone`",
		MessageAudio)

	SetCommand(
		[]string{"ggd voca"},
		"Play audio message in vocal channel",
		"`ggd voca let's go shopping`",
		MessageVocal)

	SetCommand(
		[]string{"ping", "pong"},
		"*Check if the bot is alive*",
		"`[ping|pong]`",
		MessagePing)

	SetCommand(
		[]string{"ggd help", "ggd info"},
		"*Display the available list of commands*",
		"`ggd [help|info]`",
		MessageHelp)

	SetCommand(
		[]string{"ggd hat", "ggd chapeau", "ggd chapo"},
		"*Hand over a set of fancy hats*",
		"`ggd [hat|chapeau|chapo]`",
		MessageHat)
}