feat:#5 added free rooms api endpoint

backend/service/addRoute.go

@@ -5,6 +5,7 @@ import (
 	"htwkalender/service/fetch/sport"
 	v1 "htwkalender/service/fetch/v1"
 	v2 "htwkalender/service/fetch/v2"
+	"htwkalender/service/functions/time"
 	"htwkalender/service/ical"
 	"htwkalender/service/room"
 	"log/slog"
@@ -181,6 +182,39 @@ func AddRoutes(app *pocketbase.PocketBase) {
 		return nil
 	})
 
+	// API Endpoint to get all rooms that have no events in a specific time frame
+	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
+		_, err := e.Router.AddRoute(echo.Route{
+			Method: http.MethodGet,
+			Path:   "/api/rooms/free",
+			Handler: func(c echo.Context) error {
+				from, err := time.ParseTime(c.QueryParam("from"))
+				if err != nil {
+					slog.Error("Failed to parse time: %v", err)
+					return c.JSON(http.StatusBadRequest, "Failed to parse time")
+				}
+				to, err := time.ParseTime(c.QueryParam("to"))
+				if err != nil {
+					slog.Error("Failed to parse time: %v", err)
+					return c.JSON(http.StatusBadRequest, "Failed to parse time")
+				}
+				rooms, err := room.GetFreeRooms(app, from, to)
+				if err != nil {
+					slog.Error("Failed to get free rooms: %v", err)
+					return c.JSON(http.StatusBadRequest, "Failed to get free rooms")
+				}
+				return c.JSON(http.StatusOK, rooms)
+			},
+			Middlewares: []echo.MiddlewareFunc{
+				apis.ActivityLogger(app),
+			},
+		})
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+
 	addFeedRoutes(app)
 
 	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {