bvandeusen
1e66910823
M6 stub. Validates seed_track param (400 on missing/blank/bad UUID), looks up the track (404 on miss), returns RadioResponse with a single TrackRef. M4 will replace the body with similarity-driven candidate pool + scoring; the request/response shape is final.
61 lines
1.8 KiB
Go
61 lines
1.8 KiB
Go
package api
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import (
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"errors"
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"net/http"
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"strings"
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"github.com/jackc/pgx/v5"
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"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
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)
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// RadioResponse is the body of GET /api/radio.
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type RadioResponse struct {
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Tracks []TrackRef `json:"tracks"`
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}
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// handleRadio implements GET /api/radio?seed_track=<uuid>.
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//
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// M6 stub: returns a queue containing only the seed track. The full M4
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// implementation (similarity-based candidate pool + scoring) replaces the
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// body without changing the request/response shape.
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func (h *handlers) handleRadio(w http.ResponseWriter, r *http.Request) {
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raw := strings.TrimSpace(r.URL.Query().Get("seed_track"))
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if raw == "" {
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writeErr(w, http.StatusBadRequest, "bad_request", "seed_track is required")
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return
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}
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id, ok := parseUUID(raw)
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if !ok {
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writeErr(w, http.StatusBadRequest, "bad_request", "invalid seed_track id")
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return
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}
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q := dbq.New(h.pool)
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track, err := q.GetTrackByID(r.Context(), id)
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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writeErr(w, http.StatusNotFound, "not_found", "seed_track not found")
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return
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}
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h.logger.Error("api: get radio seed track failed", "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
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return
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}
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album, err := q.GetAlbumByID(r.Context(), track.AlbumID)
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if err != nil {
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h.logger.Error("api: get radio seed album failed", "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
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return
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}
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artist, err := q.GetArtistByID(r.Context(), track.ArtistID)
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if err != nil {
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h.logger.Error("api: get radio seed artist failed", "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
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return
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}
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writeJSON(w, http.StatusOK, RadioResponse{
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Tracks: []TrackRef{trackRefFrom(track, album.Title, artist.Name)},
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})
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}
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