package commands

import (
	"context"
	"fmt"
	"strings"

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

type QueueCommand struct {
	deps *Dependencies
}

func NewQueueCommand(deps *Dependencies) *QueueCommand {
	return &QueueCommand{deps: deps}
}

func (c *QueueCommand) Definition() discord.ApplicationCommandCreate {
	return discord.SlashCommandCreate{
		Name:        "queue",
		Description: "Shows the upcoming tracks",
	}
}

func (c *QueueCommand) Execute(ctx context.Context, event *events.ApplicationCommandInteractionCreate) error {
	gid, ok := guildID(event)
	if !ok {
		return guildOnlyError(event)
	}

	tracks := c.deps.Music.Guild(gid).Queued()
	if len(tracks) == 0 {
		return reply(event, "The queue is empty.")
	}

	var builder strings.Builder
	builder.WriteString("Up next:\n")
	for i, track := range tracks {
		fmt.Fprintf(&builder, "%d. **%s** (%s)\n", i+1, track.Info.Title, track.Info.Length)
	}
	return reply(event, builder.String())
}