package public

import (
	"context"
	"strconv"

	"velox-bot/internal/commands/meeting/shared"
	"velox-bot/internal/db/services"

	"github.com/bwmarrin/discordgo"
)

var Meeting = &discordgo.ApplicationCommand{
	Name:        "meeting",
	Description: "Meeting room settings",
	Options: []*discordgo.ApplicationCommandOption{
		{
			Type:        discordgo.ApplicationCommandOptionSubCommand,
			Name:        "set-lobby",
			Description: "Set the voice lobby channel used to create meetings",
			Options: []*discordgo.ApplicationCommandOption{
				{
					Type:         discordgo.ApplicationCommandOptionChannel,
					Name:         "channel",
					Description:  "Voice channel lobby",
					Required:     true,
					ChannelTypes: []discordgo.ChannelType{discordgo.ChannelTypeGuildVoice},
				},
			},
		},
	},
}

func MeetingHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
	if !shared.RequireGuild(s, i) || !shared.RequireManageGuild(s, i) || !shared.RequireMeetingService(s, i) {
		return
	}

	data := i.ApplicationCommandData()
	if len(data.Options) == 0 {
		shared.RespondEphemeral(s, i, "Missing subcommand.")
		return
	}

	switch data.Options[0].Name {
	case "set-lobby":
		handleSetLobby(s, i)
	default:
		shared.RespondEphemeral(s, i, "Unknown subcommand.")
	}
}

func handleSetLobby(s *discordgo.Session, i *discordgo.InteractionCreate) {
	guildID, ok := shared.ParseGuildID(s, i)
	if !ok {
		return
	}

	optMap := shared.SubcommandOptionMap(i)
	channelOpt, ok := optMap["channel"]
	if !ok {
		shared.RespondEphemeral(s, i, "Missing channel option.")
		return
	}

	ch := channelOpt.ChannelValue(s)
	if ch == nil || ch.Type != discordgo.ChannelTypeGuildVoice {
		shared.RespondEphemeral(s, i, "Invalid voice channel.")
		return
	}

	channelID, err := strconv.ParseInt(ch.ID, 10, 64)
	if err != nil {
		shared.RespondEphemeral(s, i, "Invalid channel ID.")
		return
	}

	if err := services.Global.Meeting.SetLobbyChannel(context.Background(), guildID, channelID); err != nil {
		shared.RespondEphemeral(s, i, "Failed to set meeting lobby.")
		return
	}

	shared.RespondEphemeral(s, i, "Meeting lobby set to "+ch.Mention()+".")
}