package commands

import (
	"context"
	"fmt"

	"github.com/disgoorg/disgo/discord"
	"github.com/disgoorg/disgo/events"

	"discord-music-bot/internal/music"
)

type LoopCommand struct {
	deps *Dependencies
}

func NewLoopCommand(deps *Dependencies) *LoopCommand {
	return &LoopCommand{deps: deps}
}

func (c *LoopCommand) Definition() discord.ApplicationCommandCreate {
	return discord.SlashCommandCreate{
		Name:        "loop",
		Description: "Sets what happens when a track finishes",
		Options: []discord.ApplicationCommandOption{
			discord.ApplicationCommandOptionString{
				Name:        "mode",
				Description: "Loop mode",
				Required:    true,
				Choices: []discord.ApplicationCommandOptionChoiceString{
					{Name: "Off", Value: "off"},
					{Name: "Track", Value: "track"},
					{Name: "Queue", Value: "queue"},
				},
			},
		},
	}
}

func (c *LoopCommand) Execute(ctx context.Context, event *events.ApplicationCommandInteractionCreate) error {
	gid, err := requirePlaybackAccess(c.deps.Discord, event)
	if err != nil {
		return err
	}

	value := event.SlashCommandInteractionData().String("mode")

	var mode music.LoopMode
	switch value {
	case "off":
		mode = music.LoopOff
	case "track":
		mode = music.LoopTrack
	case "queue":
		mode = music.LoopQueue
	default:
		return rejectEphemeral(event, fmt.Sprintf("Unknown loop mode %q.", value))
	}

	c.deps.Music.Guild(gid).SetLoopMode(mode)
	return reply(event, fmt.Sprintf("Loop mode set to **%s**.", mode))
}