Files
hold-slayer/api/call_history.py
Robert Helewka 67a00defc3 refactor: composition root in lifespan, break core↔services cycle, shared data layer
The gateway was the composition root, device registry, inbound-call
policy, and call-operations service in one class, with core↔services
circular imports papered over by function-local imports, wiring done
by assigning private attributes, and MCP tools duplicating REST query
logic against their own sessions.

Composition:
- main.py's lifespan now builds every service and wires them by
  constructor/registration. gateway.from_config() is gone; core/ no
  longer imports services/ anywhere — the cycle is dead.
- Inbound-call policy moved to ReceptionistService.on_inbound_call
  (routing evaluation, reject/answer, screening dispatch); wired as
  the engine's on_incoming_call by the lifespan. Receptionist deps
  (tts/transcription/recording/routing) are constructor-injected —
  no more gateway._tts reach-through or importing hold_slayer's
  private _get_llm (now services.llm_client.get_llm, shared).
- Hold-slayer launch goes through a mode-handler registry
  (register_mode_handler); the gateway no longer knows the service's
  type. CallManager takes on_call_ended in its constructor.
- build_sip_engine() is a pure function taking explicit callbacks.
- api/routing.py uses the routing service from app.state via a
  proper dependency instead of gateway._routing.

Shared data layer:
- db.session_scope() is the one session convention (get_db wraps it).
- services/call_persistence.py gains the query/write functions and
  the single StoredCallFlow→CallFlow mapper; api/call_flows.py,
  api/call_history.py, and the six DB-touching MCP tools are thin
  wrappers over them — the two surfaces can't drift.
- legs_for_call() replaces the three private _call_legs scans
  (gateway transfer/hangup, REST dtmf, MCP dtmf).

7 new tests (mode-handler launch, on_call_ended hook, receptionist
inbound answer/reject, call-flow CRUD round-trip and history routes
against real SQLite through the shared layer). aiosqlite added to dev
deps for that.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 20:29:01 -04:00

110 lines
3.5 KiB
Python

"""
Call History API — Read-only access to persisted call records,
transcript chunks, and recording files for the dashboard.
Thin HTTP layer over the shared data functions in call_persistence.
"""
import os
from datetime import datetime
from fastapi import APIRouter, Depends, HTTPException, Query
from fastapi.responses import FileResponse
from sqlalchemy.ext.asyncio import AsyncSession
from db.database import get_db
from services import call_persistence as store
router = APIRouter()
@router.get("/history")
async def list_history(
limit: int = Query(50, ge=1, le=500),
offset: int = Query(0, ge=0),
number: str | None = None,
status: str | None = None,
since: datetime | None = None,
until: datetime | None = None,
db: AsyncSession = Depends(get_db),
):
"""Paged list of past calls, newest first."""
rows = await store.search_history(
db,
number=number,
status=status,
since=since,
until=until,
limit=limit,
offset=offset,
)
return [
{
"id": r.id,
"direction": r.direction,
"remote_number": r.remote_number,
"status": r.status,
"mode": r.mode,
"intent": r.intent,
"started_at": r.started_at.isoformat() if r.started_at else None,
"ended_at": r.ended_at.isoformat() if r.ended_at else None,
"duration": r.duration,
"hold_time": r.hold_time,
"device_used": r.device_used,
"summary": r.summary,
}
for r in rows
]
@router.get("/{call_id}/record")
async def get_record(call_id: str, db: AsyncSession = Depends(get_db)):
"""Full CallRecord with classification_timeline."""
row = await store.get_record(db, call_id)
if not row:
raise HTTPException(status_code=404, detail=f"Call {call_id} not found")
return {
"id": row.id,
"direction": row.direction,
"remote_number": row.remote_number,
"status": row.status,
"mode": row.mode,
"intent": row.intent,
"started_at": row.started_at.isoformat() if row.started_at else None,
"ended_at": row.ended_at.isoformat() if row.ended_at else None,
"duration": row.duration,
"hold_time": row.hold_time,
"device_used": row.device_used,
"summary": row.summary,
"action_items": row.action_items,
"sentiment": row.sentiment,
"call_flow_id": row.call_flow_id,
"classification_timeline": row.classification_timeline,
}
@router.get("/{call_id}/transcript")
async def get_transcript(call_id: str, db: AsyncSession = Depends(get_db)):
"""Ordered transcript chunks for a call."""
rows = await store.get_transcript_chunks(db, call_id)
return [
{
"seq": c.seq,
"t_offset_ms": c.t_offset_ms,
"speaker": c.speaker,
"text": c.text,
"confidence": c.confidence,
}
for c in rows
]
@router.get("/{call_id}/recording")
async def get_recording(call_id: str, db: AsyncSession = Depends(get_db)):
"""Stream the WAV recording for a call."""
row = await store.latest_recording(db, call_id)
if not row or not row.path:
raise HTTPException(status_code=404, detail="Recording not found")
if not os.path.exists(row.path):
raise HTTPException(status_code=404, detail="Recording file missing on disk")
return FileResponse(row.path, media_type="audio/wav", filename=os.path.basename(row.path))