Add file save and delete api endpoints

backend/internal/api/handlers.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"encoding/json"
+	"io"
 	"net/http"
 	"strings"
 
@@ -34,3 +35,37 @@ func GetFileContent(fs *filesystem.FileSystem) http.HandlerFunc {
 		w.Write(content)
 	}
 }
+
+func SaveFile(fs *filesystem.FileSystem) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		filePath := strings.TrimPrefix(r.URL.Path, "/api/v1/files/")
+		content, err := io.ReadAll(r.Body)
+		if err != nil {
+			http.Error(w, "Failed to read request body", http.StatusBadRequest)
+			return
+		}
+
+		err = fs.SaveFile(filePath, content)
+		if err != nil {
+			http.Error(w, "Failed to save file", http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte("File saved successfully"))
+	}
+}
+
+func DeleteFile(fs *filesystem.FileSystem) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		filePath := strings.TrimPrefix(r.URL.Path, "/api/v1/files/")
+		err := fs.DeleteFile(filePath)
+		if err != nil {
+			http.Error(w, "Failed to delete file", http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte("File deleted successfully"))
+	}
+}

backend/internal/filesystem/filesystem.go

@@ -58,3 +58,19 @@ func (fs *FileSystem) GetFileContent(filePath string) ([]byte, error) {
 	fullPath := filepath.Join(fs.RootDir, filePath)
 	return os.ReadFile(fullPath)
 }
+
+func (fs *FileSystem) SaveFile(filePath string, content []byte) error {
+	fullPath := filepath.Join(fs.RootDir, filePath)
+	dir := filepath.Dir(fullPath)
+
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return err
+	}
+
+	return os.WriteFile(fullPath, content, 0644)
+}
+
+func (fs *FileSystem) DeleteFile(filePath string) error {
+	fullPath := filepath.Join(fs.RootDir, filePath)
+	return os.Remove(fullPath)
+}