refactor: move project deletion to module

server/modules/projects/services/project-delete.service.ts

@@ -0,0 +1,75 @@
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+
+import { projectsDb, sessionsDb } from '@/modules/database/index.js';
+import { AppError } from '@/shared/utils.js';
+
+function uniqueJsonlPathsFromSessions(
+  sessions: Array<{ jsonl_path: string | null }>,
+): string[] {
+  const seen = new Set<string>();
+  const result: string[] = [];
+
+  for (const row of sessions) {
+    const raw = row.jsonl_path?.trim();
+    if (!raw) {
+      continue;
+    }
+    const absolute = path.isAbsolute(raw) ? path.normalize(raw) : path.resolve(raw);
+    if (seen.has(absolute)) {
+      continue;
+    }
+    seen.add(absolute);
+    result.push(absolute);
+  }
+
+  return result;
+}
+
+async function unlinkJsonlIfExists(filePath: string): Promise<void> {
+  try {
+    await fs.unlink(filePath);
+  } catch (error) {
+    const code = (error as NodeJS.ErrnoException).code;
+    if (code === 'ENOENT') {
+      return;
+    }
+    console.warn(`[project-delete] Failed to remove ${filePath}:`, (error as Error).message);
+  }
+}
+
+/**
+ * Loads all session rows for the project path and removes each distinct `jsonl_path` file on disk.
+ */
+export async function deleteSessionJsonlFilesForProjectPath(projectPath: string): Promise<void> {
+  const sessions = sessionsDb.getSessionsByProjectPath(projectPath);
+  const paths = uniqueJsonlPathsFromSessions(sessions);
+
+  for (const filePath of paths) {
+    await unlinkJsonlIfExists(filePath);
+  }
+}
+
+/**
+ * - **Soft delete** (`force` false): set `isArchived` on the `projects` row (hide from the active list; DB only).
+ * - **Force** (`force` true): for each session row for that `project_path`, delete the file at `jsonl_path`
+ *   (when set), then remove session rows and the `projects` row.
+ */
+export async function deleteOrArchiveProject(projectId: string, force: boolean): Promise<void> {
+  const row = projectsDb.getProjectById(projectId);
+  if (!row) {
+    throw new AppError(`Unknown projectId: ${projectId}`, {
+      code: 'PROJECT_NOT_FOUND',
+      statusCode: 404,
+    });
+  }
+
+  if (!force) {
+    projectsDb.updateProjectIsArchivedById(projectId, true);
+    return;
+  }
+
+  await deleteSessionJsonlFilesForProjectPath(row.project_path);
+  sessionsDb.deleteSessionsByProjectPath(row.project_path);
+  projectsDb.deleteProjectById(projectId);
+}