feat: add ability to manually scrobble track (#91)

* feat: add button to manually scrobble from ui

* fix: ensure timestamp is in the past, log fix

* test: add integration test

engine/handlers/manual_scrobble.go

@@ -0,0 +1,77 @@
+package handlers
+
+import (
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/gabehf/koito/engine/middleware"
+	"github.com/gabehf/koito/internal/db"
+	"github.com/gabehf/koito/internal/logger"
+	"github.com/gabehf/koito/internal/utils"
+)
+
+func SubmitListenWithIDHandler(store db.DB) http.HandlerFunc {
+
+	var defaultClientStr = "Koito Web UI"
+
+	return func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+		l := logger.FromContext(ctx)
+
+		l.Debug().Msg("SubmitListenWithIDHandler: Got request")
+
+		u := middleware.GetUserFromContext(ctx)
+		if u == nil {
+			l.Debug().Msg("SubmitListenWithIDHandler: Unauthorized request (user context is nil)")
+			utils.WriteError(w, "unauthorized", http.StatusUnauthorized)
+			return
+		}
+
+		err := r.ParseForm()
+		if err != nil {
+			l.Debug().Msg("SubmitListenWithIDHandler: Failed to parse form")
+			utils.WriteError(w, "form is invalid", http.StatusBadRequest)
+			return
+		}
+
+		trackIDStr := r.FormValue("track_id")
+		timestampStr := r.FormValue("unix")
+		client := r.FormValue("client")
+		if client == "" {
+			client = defaultClientStr
+		}
+
+		if trackIDStr == "" || timestampStr == "" {
+			l.Debug().Msg("SubmitListenWithIDHandler: Request is missing required parameters")
+			utils.WriteError(w, "track_id and unix (timestamp) must be provided", http.StatusBadRequest)
+			return
+		}
+		trackID, err := strconv.Atoi(trackIDStr)
+		if err != nil {
+			l.Debug().AnErr("error", err).Msg("SubmitListenWithIDHandler: Invalid track id")
+			utils.WriteError(w, "invalid track_id", http.StatusBadRequest)
+			return
+		}
+		unix, err := strconv.ParseInt(timestampStr, 10, 64)
+		if err != nil || time.Now().Unix() < unix {
+			l.Debug().AnErr("error", err).Msg("SubmitListenWithIDHandler: Invalid unix timestamp")
+			utils.WriteError(w, "invalid timestamp", http.StatusBadRequest)
+			return
+		}
+
+		ts := time.Unix(unix, 0)
+		err = store.SaveListen(ctx, db.SaveListenOpts{
+			TrackID: int32(trackID),
+			Time:    ts,
+			UserID:  u.ID,
+			Client:  client,
+		})
+		if err != nil {
+			l.Err(err).Msg("SubmitListenWithIDHandler: Failed to submit listen")
+			utils.WriteError(w, "failed to submit listen", http.StatusInternalServerError)
+			return
+		}
+		w.WriteHeader(http.StatusCreated)
+	}
+}