package api

import (
	"errors"
	"net/http"

	"github.com/go-chi/chi/v5"
	"github.com/jackc/pgx/v5"

	"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
)

// handleGetTrack implements GET /api/tracks/{id}. Resolves parent album +
// artist names so the response is self-contained — clients should not need
// a follow-up request to render a track outside an album view.
func (h *handlers) handleGetTrack(w http.ResponseWriter, r *http.Request) {
	id, ok := parseUUID(chi.URLParam(r, "id"))
	if !ok {
		writeErr(w, http.StatusBadRequest, "bad_request", "invalid track id")
		return
	}
	q := dbq.New(h.pool)
	track, err := q.GetTrackByID(r.Context(), id)
	if err != nil {
		if errors.Is(err, pgx.ErrNoRows) {
			writeErr(w, http.StatusNotFound, "not_found", "track not found")
			return
		}
		h.logger.Error("api: get track failed", "err", err)
		writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
		return
	}
	album, err := q.GetAlbumByID(r.Context(), track.AlbumID)
	if err != nil {
		h.logger.Error("api: get track album failed", "err", err)
		writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
		return
	}
	artist, err := q.GetArtistByID(r.Context(), track.ArtistID)
	if err != nil {
		h.logger.Error("api: get track artist failed", "err", err)
		writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
		return
	}
	writeJSON(w, http.StatusOK, trackRefFrom(track, album.Title, artist.Name))
}

// handleGetAlbum is implemented in Task 7.
func (h *handlers) handleGetAlbum(w http.ResponseWriter, r *http.Request) {
	writeErr(w, http.StatusNotImplemented, "not_implemented", "stub")
}

// handleGetArtist is implemented in Task 8.
func (h *handlers) handleGetArtist(w http.ResponseWriter, r *http.Request) {
	writeErr(w, http.StatusNotImplemented, "not_implemented", "stub")
}

// handleListArtists is implemented in Task 9.
func (h *handlers) handleListArtists(w http.ResponseWriter, r *http.Request) {
	writeErr(w, http.StatusNotImplemented, "not_implemented", "stub")
}

// handleSearch is implemented in Task 10 (file: search.go).
func (h *handlers) handleSearch(w http.ResponseWriter, r *http.Request) {
	writeErr(w, http.StatusNotImplemented, "not_implemented", "stub")
}