Uploaded Media File Delete Update

2026-02-22 13:04:04 -05:00
parent 3d936d8a6f
commit 3b4d5e4080
16 changed files with 701 additions and 451 deletions
--- a/server/routes/simulations.go
+++ b/server/routes/simulations.go
@@ -0,0 +1,265 @@
+package routes
+
+import (
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func (rt *Router) CreateSimulation(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	bodyBytes, err := io.ReadAll(r.Body)
+	if err != nil {
+		http.Error(w, "Failed to read request body", http.StatusBadRequest)
+		return
+	}
+	defer r.Body.Close()
+	configStr := string(bodyBytes)
+
+	if configStr == "" {
+		http.Error(w, "Config cannot be empty", http.StatusBadRequest)
+		return
+	}
+
+	hasPattern := false
+	var jsonParsed map[string]interface{}
+	err = json.Unmarshal(bodyBytes, &jsonParsed)
+	if err != nil {
+		http.Error(w, "Invalid configuration format: must be valid JSON", http.StatusBadRequest)
+		return
+	}
+
+	for k, v := range jsonParsed {
+		if k == "search.yaml" || k == "search" {
+			if searchMap, ok := v.(map[string]interface{}); ok {
+				if _, ok := searchMap["spiral"]; ok {
+					hasPattern = true
+				}
+				if _, ok := searchMap["lawnmower"]; ok {
+					hasPattern = true
+				}
+				if _, ok := searchMap["levy"]; ok {
+					hasPattern = true
+				}
+			}
+		}
+	}
+
+	if !hasPattern {
+		http.Error(w, "Simulation configuration must include a search pattern (spiral, lawnmower, or levy)", http.StatusBadRequest)
+		return
+	}
+
+	var existingID int
+	var existingName string
+	err = rt.DB.QueryRow("SELECT id, name FROM simulations WHERE config = ?", configStr).Scan(&existingID, &existingName)
+	if err == nil {
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(map[string]interface{}{
+			"id":   existingID,
+			"name": existingName,
+		})
+		return
+	}
+
+	var count int
+	rt.DB.QueryRow("SELECT COUNT(*) FROM simulations").Scan(&count)
+	newName := fmt.Sprintf("simulation_%d", count+1)
+
+	for {
+		var temp int
+		err := rt.DB.QueryRow("SELECT id FROM simulations WHERE name = ?", newName).Scan(&temp)
+		if err == sql.ErrNoRows {
+			break
+		}
+		count++
+		newName = fmt.Sprintf("simulation_%d", count+1)
+	}
+
+	res, err := rt.DB.Exec("INSERT INTO simulations(name, config) VALUES(?, ?)", newName, configStr)
+	if err != nil {
+		log.Println("Insert simulation error:", err)
+		http.Error(w, "Failed to create", http.StatusInternalServerError)
+		return
+	}
+	newID, _ := res.LastInsertId()
+
+	resultsDir := filepath.Join("../results", newName)
+	os.MkdirAll(resultsDir, 0755)
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"id":   newID,
+		"name": newName,
+	})
+}
+
+func (rt *Router) GetSimulations(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	rows, err := rt.DB.Query("SELECT id, name, config, created_at, search_time, total_time FROM simulations")
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer rows.Close()
+
+	var sims []Simulation
+	for rows.Next() {
+		var s Simulation
+		err = rows.Scan(&s.ID, &s.Name, &s.Config, &s.CreatedAt, &s.SearchTime, &s.TotalTime)
+		if err != nil {
+			log.Println("Row scan error:", err)
+			continue
+		}
+		sims = append(sims, s)
+	}
+
+	if sims == nil {
+		sims = []Simulation{}
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(sims)
+}
+
+func (rt *Router) GetSimulationDetails(w http.ResponseWriter, r *http.Request, idStr string) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	var s Simulation
+	err := rt.DB.QueryRow("SELECT id, name, config, created_at, search_time, total_time FROM simulations WHERE id = ?", idStr).Scan(&s.ID, &s.Name, &s.Config, &s.CreatedAt, &s.SearchTime, &s.TotalTime)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			http.Error(w, "Simulation not found", http.StatusNotFound)
+		} else {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+		return
+	}
+
+	rows, err := rt.DB.Query("SELECT filename FROM resources WHERE simulation_id = ?", s.ID)
+	if err == nil {
+		defer rows.Close()
+		for rows.Next() {
+			var fname string
+			if err := rows.Scan(&fname); err == nil {
+				s.Resources = append(s.Resources, fname)
+				if stat, err := os.Stat(filepath.Join("../results", s.Name, fname)); err == nil {
+					s.TotalSizeBytes += stat.Size()
+				}
+			}
+		}
+	}
+	if s.Resources == nil {
+		s.Resources = []string{}
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(s)
+}
+
+func (rt *Router) RenameSimulation(w http.ResponseWriter, r *http.Request, idStr string) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	var reqBody struct {
+		Name string `json:"name"`
+	}
+
+	err := json.NewDecoder(r.Body).Decode(&reqBody)
+	if err != nil || strings.TrimSpace(reqBody.Name) == "" {
+		http.Error(w, "Invalid request body or missing name", http.StatusBadRequest)
+		return
+	}
+	defer r.Body.Close()
+
+	newName := strings.TrimSpace(reqBody.Name)
+
+	var oldName string
+	err = rt.DB.QueryRow("SELECT name FROM simulations WHERE id = ?", idStr).Scan(&oldName)
+	if err != nil {
+		http.Error(w, "Simulation not found", http.StatusNotFound)
+		return
+	}
+
+	// Make sure the new name doesn't already exist
+	var tempID int
+	err = rt.DB.QueryRow("SELECT id FROM simulations WHERE name = ?", newName).Scan(&tempID)
+	if err == nil {
+		http.Error(w, "A simulation with that name already exists", http.StatusConflict)
+		return
+	}
+
+	// Rename the physical storage folder to maintain link parity
+	oldDirPath := filepath.Join("../results", oldName)
+	newDirPath := filepath.Join("../results", newName)
+	if _, statErr := os.Stat(oldDirPath); statErr == nil {
+		err = os.Rename(oldDirPath, newDirPath)
+		if err != nil {
+			log.Println("Error renaming directory:", err)
+			http.Error(w, "Failed to rename results directory", http.StatusInternalServerError)
+			return
+		}
+	} else {
+		// Just ensure target dir exists
+		os.MkdirAll(newDirPath, 0755)
+	}
+
+	_, err = rt.DB.Exec("UPDATE simulations SET name = ? WHERE id = ?", newName, idStr)
+	if err != nil {
+		// Attempt revert if DB dies halfway 
+		os.Rename(newDirPath, oldDirPath)
+		log.Println("Update simulation name error:", err)
+		http.Error(w, "Failed to update database", http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]string{"status": "success", "new_name": newName})
+}
+
+func (rt *Router) DeleteSimulation(w http.ResponseWriter, r *http.Request, idStr string) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	var name string
+	err := rt.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 = rt.DB.Exec("DELETE FROM resources WHERE simulation_id = ?", idStr)
+	if err != nil {
+		log.Println("Warning: Error deleting resources map from DB:", err)
+	}
+	
+	_, err = rt.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"})
+}