package discord

import (
	"log/slog"
	"strings"

	"github.com/bwmarrin/discordgo"
	"github.com/leolionad58/ticketbot/internal/discord/commands"
	"github.com/leolionad58/ticketbot/internal/discord/components"
)

// Router dispatches Discord interactions to the appropriate handler.
type Router struct {
	PanelCmd   *commands.PanelCommand
	TicketCmd  *commands.TicketCommand
	ConvocCmd  *commands.ConvocationCommand
	PanelComp  *components.PanelComponent
	TicketComp *components.TicketComponent
}

func (r *Router) Handle(s *discordgo.Session, i *discordgo.InteractionCreate) {
	switch i.Type {
	case discordgo.InteractionApplicationCommand:
		r.routeCommand(s, i)
	case discordgo.InteractionMessageComponent:
		r.routeComponent(s, i)
	case discordgo.InteractionModalSubmit:
		r.routeModal(s, i)
	}
}

func (r *Router) routeCommand(s *discordgo.Session, i *discordgo.InteractionCreate) {
	name := i.ApplicationCommandData().Name
	slog.Debug("command received", "name", name, "user_id", memberUserID(i), "guild_id", i.GuildID)
	switch name {
	case "panel_send":
		r.PanelCmd.Handle(s, i)
	case "ticket":
		r.TicketCmd.Handle(s, i)
	case "convocation":
		r.ConvocCmd.Handle(s, i)
	default:
		slog.Warn("unknown command", "name", name)
	}
}

func (r *Router) routeComponent(s *discordgo.Session, i *discordgo.InteractionCreate) {
	customID := i.MessageComponentData().CustomID
	slog.Debug("component received", "custom_id", customID, "user_id", memberUserID(i))

	switch {
	case strings.HasPrefix(customID, "panel:open:"):
		r.PanelComp.Handle(s, i)
	case strings.HasPrefix(customID, "claim:take:"):
		r.TicketComp.HandleClaim(s, i)
	case strings.HasPrefix(customID, "ticket:delete:confirm:"):
		r.TicketComp.HandleDeleteConfirm(s, i)
	case strings.HasPrefix(customID, "ticket:delete:yes:"):
		r.TicketComp.HandleDeleteYes(s, i)
	case customID == "ticket:delete:cancel":
		r.TicketComp.HandleDeleteCancel(s, i)
	case strings.HasPrefix(customID, "convoc:delete:"):
		r.TicketComp.HandleConvocationDelete(s, i)
	default:
		slog.Warn("unknown component", "custom_id", customID)
	}
}

func (r *Router) routeModal(s *discordgo.Session, i *discordgo.InteractionCreate) {
	customID := i.ModalSubmitData().CustomID
	slog.Debug("modal received", "custom_id", customID, "user_id", memberUserID(i))
	switch {
	case strings.HasPrefix(customID, "modal:ticket:"):
		r.PanelComp.HandleModalSubmit(s, i)
	default:
		slog.Warn("unknown modal", "custom_id", customID)
	}
}

func memberUserID(i *discordgo.InteractionCreate) string {
	if i.Member != nil && i.Member.User != nil {
		return i.Member.User.ID
	}
	if i.User != nil {
		return i.User.ID
	}
	return ""
}