refactor: duplicate project

apps/server/src/api-data/db/db.controller.ts

@@ -175,16 +175,12 @@ export async function loadProject(req: Request, res: Response<MessageResponse |
  *                         or a 500 status with an error message in case of an exception.
  */
 export async function duplicateProjectFile(req: Request, res: Response<MessageResponse | ErrorResponse>) {
+  // file to copy from
+  const { filename } = req.params;
+  // new file name
+  const { newFilename } = req.body;
+
   try {
-    const { filename } = req.params;
-    const { newFilename } = req.body;
-
-    const errors = validateProjectFiles({ filename, newFilename });
-
-    if (errors.length) {
-      return res.status(409).send({ message: errors.join(', ') });
-    }
-
     await projectService.duplicateProjectFile(filename, newFilename);
 
     res.status(201).send({
@@ -192,6 +188,10 @@ export async function duplicateProjectFile(req: Request, res: Response<MessageRe
     });
   } catch (error) {
     const message = getErrorMessage(error);
+    if (message.startsWith('Project file')) {
+      return res.status(403).send({ message });
+    }
+
     res.status(500).send({ message });
   }
 }

apps/server/src/services/project-service/ProjectService.ts

@@ -66,9 +66,17 @@ export async function getProjectList(): Promise<ProjectFileListResponse> {
 /**
  * Duplicates an existing project file
  */
-export async function duplicateProjectFile(existingProjectFile: string, newProjectFile: string) {
-  const projectFilePath = getPathToProject(existingProjectFile);
-  const duplicateProjectFilePath = getPathToProject(newProjectFile);
+export async function duplicateProjectFile(originalFile: string, newFileName: string) {
+  if (!doesProjectExist(originalFile)) {
+    throw new Error('Project file not found');
+  }
+
+  if (doesProjectExist(newFileName)) {
+    throw new Error(`Project file with name ${newFileName} already exists`);
+  }
+
+  const projectFilePath = getPathToProject(originalFile);
+  const duplicateProjectFilePath = getPathToProject(newFileName);
 
   return copyFile(projectFilePath, duplicateProjectFilePath);
 }

apps/server/src/services/project-service/__tests__/ProjectService.test.ts

@@ -1,24 +1,30 @@
-import { deleteProjectFile } from '../ProjectService.js';
+import { deleteProjectFile, duplicateProjectFile } from '../ProjectService.js';
 import { appStateProvider } from '../../app-state-service/AppStateService.js';
-import { doesProjectExist, getPathToProject } from '../projectServiceUtils.js';
+import { doesProjectExist } from '../projectServiceUtils.js';
 import { Mock } from 'vitest';
-import { deleteFile } from '../../../utils/parserUtils.js';
 
-vi.mock('./appStateProvider');
-vi.mock('./fileSystem');
+// stop the database loading from initiating
+vi.mock('../../../setup/loadDb.js', () => {
+  return {
+    switchDb: vi.fn(),
+  };
+});
+
 vi.mock('../../app-state-service/AppStateService.js', () => ({
   appStateProvider: {
     isLastLoadedProject: vi.fn(),
   },
 }));
+
 vi.mock('../projectServiceUtils.js', () => ({
   doesProjectExist: vi.fn(),
   getPathToProject: vi.fn(),
 }));
-vi.mock('../../../utils/parserUtils.js', () => ({
-  deleteFile: vi.fn(),
-}));
 
+/**
+ * tests only assert errors since the
+ * controller depend on these to send the right responses
+ */
 describe('deleteProjectFile', () => {
   it('throws an error if trying to delete the currently loaded project', async () => {
     (appStateProvider.isLastLoadedProject as Mock).mockResolvedValue(true);
@@ -30,16 +36,21 @@ describe('deleteProjectFile', () => {
     (doesProjectExist as Mock).mockReturnValue(false);
     await expect(deleteProjectFile('nonexistentProject')).rejects.toThrow('Project file not found');
   });
+});
 
-  it('deletes the project file successfully', async () => {
-    (appStateProvider.isLastLoadedProject as Mock).mockResolvedValue(false);
-    (doesProjectExist as Mock).mockReturnValue(true);
-    (getPathToProject as Mock).mockReturnValue('/path/to/project');
-    (deleteFile as Mock).mockResolvedValue(undefined);
+describe('duplicateProjectFile', () => {
+  it('throws an error if origin project does not exist', async () => {
+    (doesProjectExist as Mock).mockReturnValue(false);
+    await expect(duplicateProjectFile('does not exist', 'doesnt matter')).rejects.toThrow('Project file not found');
+  });
 
-    await deleteProjectFile('existingProject');
-
-    expect(getPathToProject).toHaveBeenCalledWith('existingProject');
-    expect(deleteFile).toHaveBeenCalledWith('/path/to/project');
+  it('throws an error if new file name is already a project', async () => {
+    // current project exists
+    (doesProjectExist as Mock).mockReturnValueOnce(true);
+    // new project exists
+    (doesProjectExist as Mock).mockReturnValueOnce(true);
+    expect(duplicateProjectFile('nonexistentProject', 'existingproject')).rejects.toThrow(
+      'Project file with name existingproject already exists',
+    );
   });
 });