bvandeusen
0ba31c7816
POST /api/playlists/system/discover/refresh re-runs the system playlist build synchronously for the calling user, then returns their newly-built Discover playlist's UUID and track count. Used by the frontend's "Refresh" affordances (next task) on the Discover detail page header and the home Playlists row tile kebab. Operator's escape hatch when they want a different randomness without waiting for tomorrow's cron tick (e.g., after pasting a Last.fm key, after the daily cover-art enrichment expanded their playable library, or just for the heck of it). Authenticated user only; the authed sub-router's RequireUser middleware handles 401. Each user refreshes only their own Discover — no admin route, no cross-user impersonation. Adds GetSystemPlaylistByVariantForUser sqlc query for the response lookup. Returns playlist_id=null and track_count=0 if the build succeeded but the user's library yielded no eligible tracks (degenerate empty-library).
71 lines
2.3 KiB
Go
71 lines
2.3 KiB
Go
package api
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import (
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"errors"
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"net/http"
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"time"
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"github.com/jackc/pgx/v5"
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"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
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"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
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"git.fabledsword.com/bvandeusen/minstrel/internal/playlists"
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)
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// discoverRefreshResp is the wire shape for POST
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// /api/playlists/system/discover/refresh. playlist_id is null when
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// the build succeeded but the user's library yielded no eligible
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// tracks (degenerate empty-library); track_count is 0 in that case.
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type discoverRefreshResp struct {
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PlaylistID *string `json:"playlist_id"`
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TrackCount int32 `json:"track_count"`
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}
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// handleDiscoverRefresh re-runs BuildSystemPlaylists synchronously
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// for the calling user, then returns the resulting Discover row's
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// id + track_count. Used by the frontend's refresh affordances on
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// the detail page header and the home tile kebab.
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//
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// Authenticated user only (gated by the authed sub-router's
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// RequireUser middleware). Each user only ever refreshes their own
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// Discover — no admin route, no cross-user impersonation.
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func (h *handlers) handleDiscoverRefresh(w http.ResponseWriter, r *http.Request) {
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user, ok := auth.UserFromContext(r.Context())
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if !ok {
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writeErr(w, http.StatusUnauthorized, "auth_required", "")
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return
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}
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if err := playlists.BuildSystemPlaylists(r.Context(), h.pool, h.logger, user.ID, time.Now(), h.dataDir); err != nil {
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h.logger.Error("discover refresh: build failed",
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"user_id", uuidToString(user.ID), "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "build failed")
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return
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}
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sysVariant := "discover"
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pl, err := dbq.New(h.pool).GetSystemPlaylistByVariantForUser(r.Context(),
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dbq.GetSystemPlaylistByVariantForUserParams{
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UserID: user.ID,
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SystemVariant: &sysVariant,
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})
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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// Build succeeded but no Discover row produced — empty library.
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writeJSON(w, http.StatusOK, discoverRefreshResp{
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PlaylistID: nil, TrackCount: 0,
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})
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return
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}
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h.logger.Error("discover refresh: lookup failed",
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"user_id", uuidToString(user.ID), "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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idStr := uuidToString(pl.ID)
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writeJSON(w, http.StatusOK, discoverRefreshResp{
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PlaylistID: &idStr,
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TrackCount: pl.TrackCount,
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})
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}
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