feat(db): add GET history endpoint

Signed-off-by: Klagarge <remi@heredero.ch>

db/get-db.http

@@ -3,5 +3,8 @@
 ### GET last value of temp, co2, humidity, windows states
 GET http://localhost:8080/api/v1/rooms/{{room-id}}/current
 
+### GET history of a room
+GET http://localhost:8080/api/v1/rooms/{{room-id}}/history
+
 ### GET all rooms
 GET http://localhost:8080/api/v1/rooms

db/src/rest/rest.go

@@ -29,6 +29,7 @@ func (g *RestGateway) setupRoutes() {
 	{
 		v1.GET("/rooms", g.getRooms)
 		v1.GET("/rooms/:room-id/current", g.getRoomCurrent)
+		v1.GET("/rooms/:room-id/history", g.getRoomHistory)
 	}
 }
 
@@ -90,3 +91,31 @@ func (g *RestGateway) getRoomCurrent(c *gin.Context) {
 
 	c.JSON(http.StatusNotFound, gin.H{"error": "Room not found or no data available"})
 }
+
+// GET /api/v1/rooms/{room-id}/history
+func (g *RestGateway) getRoomHistory(c *gin.Context) {
+	roomID := c.Param("room-id")
+
+	// Default to last 24 hours if not specified
+	query := fmt.Sprintf(`	SELECT * FROM "provence" WHERE "room" = '%s' AND time > now() - INTERVAL '1 day' ORDER BY time ASC
+`, roomID)
+
+	// Using context.Background() as seen in working snippet
+	it, err := g.influxGateway.Query(context.Background(), query)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	var history []map[string]any
+	for it.Next() {
+		history = append(history, it.Value())
+	}
+
+	if err := it.Err(); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, history)
+}