refactor: expose api for loading demo project

apps/client/src/common/api/db.ts

@@ -112,6 +112,14 @@ export async function loadProject(filename: string): Promise<MessageResponse> {
   return res.data;
 }
 
+/**
+ * HTTP request to load the demo project file
+ */
+export async function loadDemo(): Promise<MessageResponse> {
+  const res = await axios.post(`${dbPath}/demo`);
+  return res.data;
+}
+
 /**
  * HTTP request to duplicate a project file
  */

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

@@ -192,6 +192,25 @@ export async function loadProject(req: Request, res: Response<MessageResponse |
   }
 }
 
+/**
+ * Loads the demo project
+ */
+export async function loadDemo(req: Request, res: Response<MessageResponse | ErrorResponse>) {
+  try {
+    const projectName = await projectService.loadDemoProject();
+
+    res.status(201).send({
+      message: `Loaded demo project: ${projectName}`,
+    });
+  } catch (error) {
+    const message = getErrorMessage(error);
+    if (message.startsWith('Project file')) {
+      return res.status(403).send({ message });
+    }
+    res.status(500).send({ message });
+  }
+}
+
 /**
  * Duplicates a project file.
  * Receives the original project filename (`filename`) from the request parameters

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

@@ -6,6 +6,7 @@ import {
   deleteProjectFile,
   duplicateProjectFile,
   listProjects,
+  loadDemo,
   loadProject,
   patchPartialProjectFile,
   postProjectFile,
@@ -36,6 +37,7 @@ router.post('/quick', validateQuickProject, quickProjectFile);
 router.get('/all', listProjects);
 
 router.post('/load', validateFilenameBody, loadProject);
+router.post('/demo', loadDemo);
 router.post('/:filename/duplicate', validateFilenameParam, validateNewFilenameBody, duplicateProjectFile);
 router.put('/:filename/rename', validateFilenameParam, validateNewFilenameBody, renameProjectFile);
 router.delete('/:filename', validateFilenameParam, deleteProjectFile);

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

@@ -59,10 +59,9 @@ export async function getCurrentProject() {
 }
 
 /**
- * Private function loads a demo project
- * to be composed in the loading functions
+ * Loads the demo project
  */
-async function loadDemoProject(): Promise<string> {
+export async function loadDemoProject(): Promise<string> {
   const pathToNewFile = generateUniqueFileName(publicDir.projectsDir, config.demoProject);
   await initPersistence(getPathToProject(pathToNewFile), demoDb);
   const newName = getFileNameFromPath(pathToNewFile);