package api

import (
	"net/http"
)

func (h *Handlers) ListLibraryArtists(w http.ResponseWriter, r *http.Request) {
	if h.DB == nil {
		writeError(w, http.StatusServiceUnavailable, "database not connected")
		return
	}

	artists, err := h.DB.ListArtists(r.Context())
	if err != nil {
		writeError(w, http.StatusInternalServerError, err.Error())
		return
	}

	writeJSON(w, http.StatusOK, artists)
}

func (h *Handlers) ListLibraryAlbums(w http.ResponseWriter, r *http.Request) {
	if h.DB == nil {
		writeError(w, http.StatusServiceUnavailable, "database not connected")
		return
	}

	albums, err := h.DB.ListAllAlbums(r.Context())
	if err != nil {
		writeError(w, http.StatusInternalServerError, err.Error())
		return
	}

	writeJSON(w, http.StatusOK, albums)
}

func (h *Handlers) LibraryStats(w http.ResponseWriter, r *http.Request) {
	if h.DB == nil {
		writeError(w, http.StatusServiceUnavailable, "database not connected")
		return
	}

	artistCount, err := h.DB.CountArtists(r.Context())
	if err != nil {
		writeError(w, http.StatusInternalServerError, err.Error())
		return
	}

	albumCount, err := h.DB.CountAlbums(r.Context())
	if err != nil {
		writeError(w, http.StatusInternalServerError, err.Error())
		return
	}

	writeJSON(w, http.StatusOK, map[string]int64{
		"artists": artistCount,
		"albums":  albumCount,
	})
}