feat(l1): L1 endpoint surface (intake/queue/step/notes/resolve/escalate)

Mounts /api/v1/l1/* with require_l1_or_coverage on every route. Intake
creates an internal ticket and starts a flow OR adhoc session (PSA queue
merge follows in Phase 2). Step/notes/resolve/escalate delegate to
l1_session_service. escalate-without-walk creates an immediately-
escalated session for the BuildAbortedNoKB path.

ValueError from services → 400. Cross-account session access → 404.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
2026-05-28 13:33:18 -04:00
parent 054e9da49b
commit 96973c7968
4 changed files with 704 additions and 0 deletions

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@@ -0,0 +1,268 @@
"""L1 Workspace endpoints (Phase 1).
PSA-merge queue support + AI build path are deferred to Phase 2.
"""
from typing import Annotated, Optional
from uuid import UUID
from fastapi import APIRouter, Depends, HTTPException, status as http_status
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.api.deps import get_db, require_l1_or_coverage
from app.models.l1_walk_session import L1WalkSession
from app.models.user import User
from app.schemas.l1 import (
EscalateRequest,
EscalateWithoutWalkRequest,
IntakeRequest,
IntakeResponse,
NotesRequest,
QueueRow,
ResolveRequest,
StepRequest,
WalkSessionResponse,
)
from app.services import internal_ticket_service, l1_session_service
router = APIRouter(prefix="/l1", tags=["l1"])
def _to_response(session: L1WalkSession) -> WalkSessionResponse:
return WalkSessionResponse(
id=session.id,
session_kind=session.session_kind,
flow_id=session.flow_id,
flow_proposal_id=session.flow_proposal_id,
current_node_id=session.current_node_id,
walked_path=session.walked_path or [],
walk_notes=session.walk_notes or [],
status=session.status,
started_at=session.started_at,
last_step_at=session.last_step_at,
resolved_at=session.resolved_at,
)
async def _get_session_or_404(
db: AsyncSession, session_id: UUID, user: User
) -> L1WalkSession:
session = await db.get(L1WalkSession, session_id)
if session is None or session.account_id != user.account_id:
raise HTTPException(
status_code=http_status.HTTP_404_NOT_FOUND,
detail="Session not found",
)
return session
@router.post("/intake", response_model=IntakeResponse)
async def intake(
payload: IntakeRequest,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
"""L1 intake: creates an internal ticket and starts a walk session.
Phase 1: internal-ticket only (PSA support follows in Phase 2 escalation polish).
If `flow_id` is provided, starts a flow session; otherwise an adhoc session.
"""
ticket = await internal_ticket_service.create_ticket(
db,
account_id=user.account_id,
created_by_user_id=user.id,
problem_statement=payload.problem_statement,
customer_name=payload.customer_name,
customer_contact=payload.customer_contact,
)
if payload.flow_id is not None:
session = await l1_session_service.start_flow_session(
db,
account_id=user.account_id,
user=user,
flow_id=payload.flow_id,
ticket_id=str(ticket.id),
ticket_kind="internal",
)
else:
session = await l1_session_service.start_adhoc_session(
db,
account_id=user.account_id,
user=user,
ticket_id=str(ticket.id),
ticket_kind="internal",
)
await db.commit()
return IntakeResponse(
session_id=session.id,
session_kind=session.session_kind,
ticket_id=str(ticket.id),
ticket_kind="internal",
)
@router.get("/queue", response_model=list[QueueRow])
async def queue(
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
status_filter: Optional[str] = None,
limit: int = 50,
):
"""Phase 1 queue: internal tickets only. PSA-fed rows in Phase 2."""
tickets = await internal_ticket_service.list_tickets_for_account(
db,
account_id=user.account_id,
status=status_filter,
limit=limit,
)
return [
QueueRow(
ticket_id=str(t.id),
ticket_kind="internal",
problem_statement=t.problem_statement,
customer_name=t.customer_name,
status=t.status,
created_at=t.created_at,
)
for t in tickets
]
@router.get("/sessions/active", response_model=list[WalkSessionResponse])
async def list_active_sessions(
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
"""The caller's currently-active sessions (for the dashboard 'Resume in progress' widget)."""
stmt = (
select(L1WalkSession)
.where(L1WalkSession.created_by_user_id == user.id)
.where(L1WalkSession.status == "active")
.order_by(L1WalkSession.last_step_at.desc())
.limit(20)
)
result = await db.execute(stmt)
return [_to_response(s) for s in result.scalars()]
@router.get("/sessions/{session_id}", response_model=WalkSessionResponse)
async def get_session(
session_id: UUID,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
session = await _get_session_or_404(db, session_id, user)
return _to_response(session)
@router.post("/sessions/{session_id}/step", response_model=WalkSessionResponse)
async def post_step(
session_id: UUID,
payload: StepRequest,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
await _get_session_or_404(db, session_id, user)
try:
updated = await l1_session_service.record_step(
db,
session_id=session_id,
node_id=payload.node_id,
question=payload.question,
answer=payload.answer,
note=payload.note,
)
except ValueError as exc:
raise HTTPException(status_code=http_status.HTTP_400_BAD_REQUEST, detail=str(exc))
await db.commit()
return _to_response(updated)
@router.post("/sessions/{session_id}/notes", response_model=WalkSessionResponse)
async def post_notes(
session_id: UUID,
payload: NotesRequest,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
await _get_session_or_404(db, session_id, user)
try:
updated = await l1_session_service.update_notes(
db,
session_id=session_id,
notes=payload.notes,
)
except ValueError as exc:
raise HTTPException(status_code=http_status.HTTP_400_BAD_REQUEST, detail=str(exc))
await db.commit()
return _to_response(updated)
@router.post("/sessions/{session_id}/resolve", response_model=WalkSessionResponse)
async def post_resolve(
session_id: UUID,
payload: ResolveRequest,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
await _get_session_or_404(db, session_id, user)
try:
updated = await l1_session_service.resolve(
db,
session_id=session_id,
helpful=payload.helpful,
resolution_notes=payload.resolution_notes,
)
except ValueError as exc:
raise HTTPException(status_code=http_status.HTTP_400_BAD_REQUEST, detail=str(exc))
await db.commit()
return _to_response(updated)
@router.post("/sessions/{session_id}/escalate", response_model=WalkSessionResponse)
async def post_escalate(
session_id: UUID,
payload: EscalateRequest,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
await _get_session_or_404(db, session_id, user)
try:
updated = await l1_session_service.escalate(
db,
session_id=session_id,
reason=payload.reason or "",
reason_category=payload.reason_category,
)
except ValueError as exc:
raise HTTPException(status_code=http_status.HTTP_400_BAD_REQUEST, detail=str(exc))
await db.commit()
return _to_response(updated)
@router.post("/escalate-without-walk", response_model=WalkSessionResponse)
async def post_escalate_without_walk(
payload: EscalateWithoutWalkRequest,
db: Annotated[AsyncSession, Depends(get_db)],
user: Annotated[User, Depends(require_l1_or_coverage)],
):
ticket = await internal_ticket_service.create_ticket(
db,
account_id=user.account_id,
created_by_user_id=user.id,
problem_statement=payload.problem_statement,
customer_name=payload.customer_name,
customer_contact=payload.customer_contact,
)
session = await l1_session_service.escalate_without_walk(
db,
account_id=user.account_id,
user=user,
ticket_id=str(ticket.id),
ticket_kind="internal",
reason_category=payload.reason_category,
reason=payload.reason,
)
await db.commit()
return _to_response(session)

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@@ -8,6 +8,7 @@ from app.api.deps import (
from app.api.endpoints import (
admin,
admin_audit,
l1,
admin_categories,
admin_dashboard,
admin_feature_flags,
@@ -185,3 +186,4 @@ api_router.include_router(beta_feedback.router, dependencies=_tenant_deps)
api_router.include_router(session_branches.router, dependencies=_pro_deps)
api_router.include_router(session_handoffs.router, dependencies=_pro_deps)
api_router.include_router(device_types.router, dependencies=_tenant_deps)
api_router.include_router(l1.router, dependencies=_tenant_deps)

72
backend/app/schemas/l1.py Normal file
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@@ -0,0 +1,72 @@
"""Pydantic schemas for the /l1/* endpoint surface."""
from datetime import datetime
from typing import Any, Literal, Optional
from uuid import UUID
from pydantic import BaseModel, Field
class IntakeRequest(BaseModel):
problem_statement: str = Field(..., min_length=1)
customer_name: Optional[str] = None
customer_contact: Optional[str] = None
flow_id: Optional[UUID] = None
class IntakeResponse(BaseModel):
session_id: UUID
session_kind: Literal["flow", "proposal", "adhoc"]
ticket_id: str
ticket_kind: Literal["psa", "internal"]
class StepRequest(BaseModel):
node_id: str
question: str
answer: str
note: Optional[str] = None
class NotesRequest(BaseModel):
notes: list[dict[str, Any]]
class ResolveRequest(BaseModel):
helpful: bool
resolution_notes: str
class EscalateRequest(BaseModel):
reason: Optional[str] = None
reason_category: str = Field(..., min_length=1)
class EscalateWithoutWalkRequest(BaseModel):
problem_statement: str = Field(..., min_length=1)
customer_name: Optional[str] = None
customer_contact: Optional[str] = None
reason_category: str = Field(..., min_length=1)
reason: Optional[str] = None
class WalkSessionResponse(BaseModel):
id: UUID
session_kind: str
flow_id: Optional[UUID]
flow_proposal_id: Optional[UUID]
current_node_id: Optional[str]
walked_path: list[dict[str, Any]]
walk_notes: list[dict[str, Any]]
status: str
started_at: datetime
last_step_at: datetime
resolved_at: Optional[datetime]
class QueueRow(BaseModel):
ticket_id: str
ticket_kind: Literal["psa", "internal"]
problem_statement: Optional[str] = None
customer_name: Optional[str] = None
status: str
created_at: Optional[datetime] = None