refactor: delete project

apps/server/src/services/app-state-service/AppStateService.ts

@@ -36,6 +36,11 @@ class AppState {
     return this.config.data;
   }
 
+  async isLastLoadedProject(projectName: string): Promise<boolean> {
+    const lastLoaded = await this.getLastLoadedProject();
+    return lastLoaded === projectName;
+  }
+
   async getLastLoadedProject(): Promise<string> {
     const data = await this.get();
     return data.lastLoadedProject;

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

@@ -13,7 +13,7 @@ import { ensureDirectory, removeFileExtension } from '../../utils/fileManagement
 import { dbModel } from '../../models/dataModel.js';
 import { deleteFile } from '../../utils/parserUtils.js';
 import { switchDb } from '../../setup/loadDb.js';
-import { getPathToProject, getProjectFiles } from './projectServiceUtils.js';
+import { doesProjectExist, getPathToProject, getProjectFiles } from './projectServiceUtils.js';
 import { parseJson } from '../../utils/parser.js';
 import { generateUniqueFileName } from '../../utils/generateUniqueFilename.js';
 
@@ -122,6 +122,15 @@ export async function createProject(filename: string, projectData: ProjectData)
  * Deletes a project file
  */
 export async function deleteProjectFile(filename: string) {
+  const isLastLoadedProject = await appStateProvider.isLastLoadedProject(filename);
+  if (isLastLoadedProject) {
+    throw new Error('Cannot delete currently loaded project');
+  }
+
+  if (!doesProjectExist(filename)) {
+    throw new Error('Project file not found');
+  }
+
   const projectFilePath = getPathToProject(filename);
   await deleteFile(projectFilePath);
 }

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

@@ -0,0 +1,45 @@
+import { deleteProjectFile } from '../ProjectService.js';
+import { appStateProvider } from '../../app-state-service/AppStateService.js';
+import { doesProjectExist, getPathToProject } from '../projectServiceUtils.js';
+import { Mock } from 'vitest';
+import { deleteFile } from '../../../utils/parserUtils.js';
+
+vi.mock('./appStateProvider');
+vi.mock('./fileSystem');
+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(),
+}));
+
+describe('deleteProjectFile', () => {
+  it('throws an error if trying to delete the currently loaded project', async () => {
+    (appStateProvider.isLastLoadedProject as Mock).mockResolvedValue(true);
+    await expect(deleteProjectFile('loadedProject')).rejects.toThrow('Cannot delete currently loaded project');
+  });
+
+  it('throws an error if the project file does not exist', async () => {
+    (appStateProvider.isLastLoadedProject as Mock).mockResolvedValue(false);
+    (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);
+
+    await deleteProjectFile('existingProject');
+
+    expect(getPathToProject).toHaveBeenCalledWith('existingProject');
+    expect(deleteFile).toHaveBeenCalledWith('/path/to/project');
+  });
+});