Files
minstrel/internal/api/home.go
T

57 lines
2.3 KiB
Go

package api
import (
"net/http"
"git.fabledsword.com/bvandeusen/minstrel/internal/apierror"
"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
"git.fabledsword.com/bvandeusen/minstrel/internal/recommendation"
)
// handleGetHome implements GET /api/home. Returns five sections in one
// payload; sections that have no rows render as []. 500 on any underlying
// DB failure — the SPA should render either empty states or full content,
// not a half-broken page.
func (h *handlers) handleGetHome(w http.ResponseWriter, r *http.Request) {
user, ok := auth.UserFromContext(r.Context())
if !ok {
writeErr(w, apierror.ErrUnauthorized)
return
}
data, err := recommendation.HomeData(r.Context(), h.pool, user.ID)
if err != nil {
h.logger.Error("api: home data", "err", err)
writeErr(w, apierror.InternalMsg("failed to load home", err))
return
}
out := HomePayload{
RecentlyAddedAlbums: make([]AlbumRef, 0, len(data.RecentlyAddedAlbums)),
RediscoverAlbums: make([]AlbumRef, 0, len(data.RediscoverAlbums)),
RediscoverArtists: make([]ArtistRef, 0, len(data.RediscoverArtists)),
MostPlayedTracks: make([]TrackRef, 0, len(data.MostPlayedTracks)),
LastPlayedArtists: make([]ArtistRef, 0, len(data.LastPlayedArtists)),
}
for _, row := range data.RecentlyAddedAlbums {
out.RecentlyAddedAlbums = append(out.RecentlyAddedAlbums, albumRefFrom(row.Album, row.ArtistName, 0, 0))
}
for _, row := range data.RediscoverAlbums {
out.RediscoverAlbums = append(out.RediscoverAlbums, albumRefFrom(row.Album, row.ArtistName, 0, 0))
}
for _, row := range data.RediscoverArtists {
out.RediscoverArtists = append(out.RediscoverArtists, artistRefFromCovered(row.Artist, int(row.AlbumCount), row.CoverAlbumID))
}
for _, row := range data.MostPlayedTracks {
out.MostPlayedTracks = append(out.MostPlayedTracks, trackRefFrom(row.Track, row.AlbumTitle, row.ArtistName))
}
for _, row := range data.LastPlayedArtists {
out.LastPlayedArtists = append(out.LastPlayedArtists, artistRefFromCovered(row.Artist, int(row.AlbumCount), row.CoverAlbumID))
}
writeJSON(w, http.StatusOK, out)
}
// Compile-time guard that dbq has the row types we need; if the SQL is
// regenerated with a different name, this fails fast at build time.
var _ = dbq.ListMostPlayedTracksForUserRow{}.Track