Function POST

app/api/chat/[project_id]/act/route.ts:231–470

(request: NextRequest, { params }: RouteContext)

 * Execute AI command
 */
export async function POST(request: NextRequest, { params }: RouteContext) {
  try {
    const { project_id } = await params;
    const rawBody = await request.json().catch(() => ({}));
    const body = (rawBody && typeof rawBody === 'object' ? rawBody : {}) as ChatActRequest &
      Record<string, unknown>;

    const project = await getProjectById(project_id);
    if (!project) {
      return NextResponse.json(
        { success: false, error: 'Project not found' },
        { status: 404 },
      );
    }

    const legacyBody = body as Record<string, unknown>;
    const projectRoot = resolveProjectRoot(project_id, project.repoPath);
    const rawInstruction = typeof body.instruction === 'string' ? body.instruction : '';
    const instructionWithoutLegacyPaths = rawInstruction.replace(/\n*Image #\d+ path: [^\n]+/g, '').trim();

    const rawImages: RawImageAttachment[] = Array.isArray((body as Record<string, unknown>).images)
      ? ((body as Record<string, unknown>).images as RawImageAttachment[])
      : Array.isArray(legacyBody['images'])
      ? (legacyBody['images'] as RawImageAttachment[])
      : [];

    const processedImages: { name: string; path: string; url: string; publicUrl?: string }[] = [];
    for (let index = 0; index < rawImages.length; index += 1) {
      const normalized = await normalizeImageAttachment(project_id, projectRoot, rawImages[index], index);
      if (normalized) {
        processedImages.push(normalized);
      }
    }

    const imageLines = processedImages.map((image, idx) => `Image #${idx + 1} path: ${image.path}`);
    const finalInstruction = [instructionWithoutLegacyPaths, imageLines.join('\n')]
      .filter((segment) => segment && segment.trim().length > 0)
      .join('\n\n')
      .trim();

    if (!finalInstruction) {
      return NextResponse.json(
        { success: false, error: 'instruction or images are required' },
        { status: 400 },
      );
    }

    const cliPreferenceRaw =
      coerceString((body as Record<string, unknown>).cliPreference) ??
      coerceString(legacyBody['cli_preference']) ??
      project.preferredCli ??
      'claude';
    const cliPreference = cliPreferenceRaw.toLowerCase();

    const selectedModelRaw =
      coerceString(body.selectedModel) ??
      coerceString(legacyBody['selected_model']) ??
      project.selectedModel ??