# apps/api/src/api/system
dir: apps/api/src/api/system

index: apps/api/src/api/system/.pi-map.index.md

## role
Provides system-level API endpoints for monitoring, administration, and infrastructure interaction including dashboards, health checks, event streaming, notifications, and container terminal access.
## files
- __init__.py | Aggregates and re-exports system API router modules from submodules for centralized access. | dep: src.api.system.dashboard, src.api.system.events, src.api.system.health, src.api.system.instance_proxy, src.api.system.notifications, src.api.system.terminal
- dashboard.py | Provides a FastAPI endpoint that returns a dashboard summary with aggregated counts of projects, repositories, SSH keys, and recent activity for the authenticated user. | exp: func:get_dashboard_summary(user_id, session) → dict, call:session.execute, call:select(func.count()).select_from(Project).where, call:func.count, call:projects_result.scalar, call:select(func.count()).select_from(GitRepository).where, call:repos_result.scalar, call:select(func.count()).select_from(SSHKey).where, call:ssh_keys_result.scalar, call:select(Project) .where(Project.owner_id == user_id) .order_by(Project.created_at.desc()) .limit, call:Project.created_at.desc, call:recent_projects.scalars().all | dep: uuid, fastapi, sqlalchemy, sqlalchemy.ext.asyncio, src.auth.dependencies, src.models, src.models.project, src.models (GitRepository, Project, SSHKey)
- events.py | Implements an SSE streaming endpoint that delivers instance events to authenticated users with per-user connection limits and keep-alive pings. | exp: func:events_stream(request: Request, user_id) → StreamingResponse, call:_connection_counts.get, call:InstanceEventBus, call:asyncio.Queue, call:queue.put_nowait, call:contextlib.suppress, call:queue.get_nowait, call:event_bus.subscribe, call:asyncio.wait_for, call:queue.get, call:json.dumps, call:unsubscribe, call:max, call:_connection_counts.pop, call:StreamingResponse, call:event_generator, raise:HTTPException, func:event_generator() → AsyncGenerator[str, None], call:InstanceEventBus, call:asyncio.Queue, call:queue.put_nowait, call:contextlib.suppress, call:queue.get_nowait, call:event_bus.subscribe, call:asyncio.wait_for, call:queue.get, call:json.dumps, call:unsubscribe, call:max, call:_connection_counts.get, call:_connection_counts.pop, func:on_event(payload: InstanceEventPayload) → None, call:queue.put_nowait, call:contextlib.suppress, call:queue.get_nowait | dep: asyncio, contextlib, json, uuid, collections.abc, fastapi, fastapi.responses, src.auth.dependencies, src.services.instance.event_bus
- health.py | Implements FastAPI health check endpoints for monitoring system status including database connectivity and disk space. | exp: func:health_check() → dict[str, Any], call:HealthChecks, call:time_module.perf_counter, call:SessionLocal, call:session.execute, call:text, call:DatabaseHealth, call:round, call:shutil.disk_usage, call:DiskHealth, call:HealthResponse( status=overall_status, timestamp=datetime.now(timezone.utc).isoformat().replace("+00:00", "Z"), version="0.1.0", checks=checks, uptime_seconds=round(time.time() - _start_time, 2), ).model_dump, call:datetime.now(timezone.utc).isoformat().replace, call:time.time, func:health_check_db() → dict[str, Any], call:time_module.perf_counter, call:SessionLocal, call:session.execute, call:text, call:DatabaseHealthResponse( status="healthy", response_time_ms=round(db_time, 2), ).model_dump, call:round, call:DatabaseHealthResponse( status="unhealthy", response_time_ms=0.0, ).model_dump | dep: time, datetime, typing, fastapi, sqlalchemy, src.database, src.schemas.system, shutil
- instance_proxy.py | Proxies HTTP requests from FastAPI endpoints to running containerized tool instances after verifying ownership and status. | exp: func:_proxy_request(request: Request, instance_id: uuid.UUID, path: str, user_id: uuid.UUID, session: AsyncSession) → Response, call:session.get, call:str, call:request.headers.items, call:key.lower, call:httpx.AsyncClient, call:request.body, call:client.request, call:logger.error, call:dict, call:response_headers.pop, call:Response, raise:HTTPException, func:proxy_to_instance(request: Request, instance_id: uuid.UUID, path, user_id, session) → Response, call:_proxy_request | dep: logging, uuid, httpx, fastapi, sqlalchemy.ext.asyncio, src.auth.dependencies, src.models
- notifications.py | Defines FastAPI REST endpoints for managing user notifications (list, unread count, mark read, dismiss/clear) with support for muted categories from user config. | exp: class:NotificationItem, class:NotificationListResponse, class:UnreadCountResponse, class:MarkAllReadResponse, class:ClearAllResponse, func:_get_mute_categories(session: AsyncSession, user_id: uuid.UUID) → list[str], call:session.execute, call:select(UserConfig).where, call:result.scalar_one_or_none, call:config.config.get, call:isinstance, func:list_notifications(limit, offset, unread_only, user, session) → NotificationListResponse, call:_get_mute_categories, call:notification_service.list_notifications, call:NotificationListResponse, call:NotificationItem.model_validate, func:get_unread_count(user, session) → UnreadCountResponse, call:notification_service.get_unread_count, call:UnreadCountResponse, func:mark_notification_read(notification_id: uuid.UUID, user, session) → NotificationItem, call:notification_service.mark_read, call:NotificationItem.model_validate, raise:HTTPException, func:mark_all_read(user, session) → MarkAllReadResponse, call:notification_service.mark_all_read, call:MarkAllReadResponse, func:clear_all_notifications(user, session) → ClearAllResponse, call:notification_service.dismiss_all, call:ClearAllResponse, func:dismiss_notification(notification_id: uuid.UUID, user, session) → None, call:notification_service.dismiss, raise:HTTPException | dep: uuid, datetime, fastapi, pydantic, sqlalchemy.ext.asyncio, src.auth.dependencies, src.models.user, src.models, src.services.shared.notification_service, sqlalchemy
- terminal.py | Provides WebSocket and HTTP endpoints for managing interactive terminal sessions attached to running Docker container tool instances, including session creation, attachment, input/output streaming, resize/reset control messages, and session listing. | exp: class:SessionRef, method:__init__(self, session, slot_session_id), func:terminal_websocket_default(websocket: WebSocket, instance_id: str, db_session) → None, call:_handle_terminal_websocket, func:terminal_websocket_specific(websocket: WebSocket, instance_id: str, session_id: str, db_session) → None, call:_handle_terminal_websocket, func:_handle_terminal_websocket(websocket: WebSocket, instance_id: str, target_session_id: str | None, db_session: AsyncSession) → None, call:logger.debug, call:websocket.accept, call:uuid.UUID, call:logger.error, call:websocket.close, call:_get_user_from_websocket, call:logger.warning, call:db_session.get, call:get_container_status, call:terminal_manager.get_or_create_session, call:terminal_manager.get_session, call:logger.info, call:terminal_manager.create_session, call:terminal_manager._find_key_by_internal_id, call:terminal_manager.attach_websocket, call:websocket.send_json, call:SessionRef, call:asyncio.create_task, call:_write_loop, call:_heartbeat_loop, call:asyncio.wait, call:len, call:task.cancel, call:str, call:suppress, call:terminal_manager.detach_websocket, func:_write_loop(session_ref: SessionRef, websocket, instance_id: str) → None, call:session.is_alive, call:asyncio.sleep, call:websocket.receive, call:session.write_input, call:text.startswith, call:json.loads, call:ctrl.get, call:logger.debug, call:session.resize, call:session.acknowledge_data, call:websocket.send_json, call:terminal_manager.reset_session, call:terminal_manager.attach_websocket, call:text.encode, func:_heartbeat_loop(websocket: WebSocket) → None, call:asyncio.sleep, call:websocket.send_json, func:_get_terminal_instance(instance_id: uuid.UUID, user_id: uuid.UUID, db_session: AsyncSession) → ToolInstance, call:db_session.get, raise:HTTPException, func:list_terminal_sessions(instance_id: uuid.UUID, user_id, db_session) → dict, call:_get_terminal_instance, call:db_session.execute, call:select(TerminalSessionModel) .where(TerminalSessionModel.instance_id == instance_id) .where(TerminalSessionModel.status != "closed") .order_by, call:TerminalSessionModel.created_at.asc, call:result.scalars().all, call:terminal_manager.get_session, call:str, call:sessions.append, call:live_session.has_websockets, call:row.created_at.isoformat, call:row.last_activity_at.isoformat, func:create_terminal_session(instance_id: uuid.UUID, data: dict, user_id, db_session) → dict, call:_get_terminal_instance, call:db_session.get, call:data.get, call:terminal_manager.create_session, raise:HTTPException, func:close_terminal_session(instance_id: uuid.UUID, session_id: str, user_id, db_session) → dict, call:_get_terminal_instance, call:terminal_manager._find_key_by_internal_id, call:str, call:terminal_manager.get_session, call:terminal_manager.close_session, raise:HTTPException, func:reset_specific_terminal_session(instance_id: uuid.UUID, session_id: str, user_id, db_session) → dict, call:_get_terminal_instance, call:terminal_manager._find_key_by_internal_id, call:str, call:terminal_manager.get_session, call:db_session.get, call:terminal_manager.reset_session, raise:HTTPException, func:rename_terminal_session(instance_id: uuid.UUID, session_id: str, data: dict, user_id, db_session) → dict, call:_get_terminal_instance, call:data.get, call:isinstance, call:terminal_manager.get_session, call:str, call:db_session.get, call:uuid.UUID, call:db_session.commit, raise:HTTPException, func:reset_terminal_session(instance_id: uuid.UUID, user_id, db_session) → dict, call:_get_terminal_instance, call:db_session.get, call:terminal_manager.reset_session, call:logger.info, call:str, call:logger.error, raise:HTTPException, func:_get_user_from_websocket(websocket: WebSocket, db_session: AsyncSession) → uuid.UUID | None, call:websocket.cookies.get, call:Settings, call:decode_session_cookie, call:uuid.UUID, call:str | dep: asyncio, json, logging, uuid, contextlib, fastapi, sqlalchemy, sqlalchemy.ext.asyncio, starlette.websockets, src.auth.dependencies, src.models, src.services.terminal.terminal_manager, src.services.docker, src.auth.session, src.config, starlette
## arch
FastAPI router modules organized by domain concern with async/await patterns, SSE/WebSocket for real-time streaming, proxy pattern for container instance forwarding, and per-user authentication/authorization with connection limiting.
## tags
session, terminal, call:terminal, call:, src, get, response, websocket
## symbols
- NotificationItem
- NotificationListResponse
- UnreadCountResponse
- MarkAllReadResponse
- ClearAllResponse
- SessionRef
- get_dashboard_summary
- events_stream
## workflows
- change system behavior
  read: __init__.py, dashboard.py, events.py
## dirty
-
