Added Delete Sim

server/api.go

@@ -150,7 +150,7 @@ func getSimulations(w http.ResponseWriter, r *http.Request) {
 func getSimulationDetails(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Access-Control-Allow-Origin", "*")
 	if r.Method == "OPTIONS" {
-		w.Header().Set("Access-Control-Allow-Methods", "GET, PUT, POST, OPTIONS")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE, OPTIONS")
 		w.WriteHeader(http.StatusOK)
 		return
 	}
@@ -178,6 +178,11 @@ func getSimulationDetails(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	if r.Method == "DELETE" && len(pathParts) == 1 {
+		deleteSimulation(w, r, idStr)
+		return
+	}
+
 	if r.Method != "GET" {
 		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
 		return
@@ -244,6 +249,44 @@ func updateSimulationTime(w http.ResponseWriter, r *http.Request, idStr string)
 	json.NewEncoder(w).Encode(map[string]string{"status": "success"})
 }
 
+func deleteSimulation(w http.ResponseWriter, r *http.Request, idStr string) {
+	var name string
+	err := db.QueryRow("SELECT name FROM simulations WHERE id = ?", idStr).Scan(&name)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			http.Error(w, "Simulation not found", http.StatusNotFound)
+		} else {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+		return
+	}
+
+	// Attempt dropping resource map hooks first
+	_, err = db.Exec("DELETE FROM resources WHERE simulation_id = ?", idStr)
+	if err != nil {
+		log.Println("Warning: Error deleting resources map from DB:", err)
+	}
+	
+	_, err = db.Exec("DELETE FROM simulations WHERE id = ?", idStr)
+	if err != nil {
+		log.Println("Error deleting simulation from DB:", err)
+		http.Error(w, "Failed to delete from database", http.StatusInternalServerError)
+		return
+	}
+
+	// Physically destroy data payload mapped onto it 
+	dirPath := filepath.Join("../results", name)
+	if _, statErr := os.Stat(dirPath); statErr == nil {
+		err = os.RemoveAll(dirPath)
+		if err != nil {
+			log.Println("Warning: Failed fully deleting physical directory items:", err)
+		}
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]string{"status": "success"})
+}
+
 func renameSimulation(w http.ResponseWriter, r *http.Request, idStr string) {
 	var reqBody struct {
 		Name string `json:"name"`