package api

import (
	"net/http"

	"github.com/inou-ai/messaging-center/internal/core"
)

// ChannelsResponse wraps a list of channels for API response.
type ChannelsResponse struct {
	Channels []core.Channel `json:"channels"`
}

// handleListChannels handles GET /api/v1/channels (stub).
func (s *Server) handleListChannels(w http.ResponseWriter, r *http.Request) {
	// For now, return configured channels with unknown status
	// Actual status will come from adapters once implemented
	var channels []core.Channel

	if s.config.Channels.Email != nil && s.config.Channels.Email.Enabled {
		channels = append(channels, core.Channel{
			Name:    "email",
			Enabled: true,
			Status:  "not_implemented",
		})
	}

	if s.config.Channels.WhatsApp != nil && s.config.Channels.WhatsApp.Enabled {
		channels = append(channels, core.Channel{
			Name:    "whatsapp",
			Enabled: true,
			Status:  "not_implemented",
		})
	}

	if s.config.Channels.Signal != nil && s.config.Channels.Signal.Enabled {
		channels = append(channels, core.Channel{
			Name:    "signal",
			Enabled: true,
			Status:  "not_implemented",
		})
	}

	writeJSON(w, http.StatusOK, ChannelsResponse{Channels: channels})
}