Files
resolutionflow/backend/app/services/notification_service.py
Michael Chihlas e8ba74ed6d
All checks were successful
Mirror to GitHub / mirror (push) Successful in 6m5s
CI / frontend (pull_request) Successful in 11m59s
CI / e2e (pull_request) Successful in 10m7s
CI / backend (pull_request) Successful in 16m22s
feat(escalations): distinguishable notifications, async AI, richer sidebar
Three improvements driven by live wedge testing.

1) Notification title now includes a problem snippet and PSA ticket
   suffix when present:
     "Escalation from Jane · #12345: Outlook is failing to sync email…"
   Replaces the prior "Session escalated by Jane" copy that made every
   escalation from the same junior look identical in the bell panel.
   Snippet is trimmed to 70 chars with ellipsis. handoff_manager now
   passes psa_ticket_id through in the notify() payload so this works
   for both /escalate and /handoff entry points.

2) AI enrichment (assessment + enhanced escalation_package) moved to
   a FastAPI BackgroundTask. The escalating engineer no longer waits
   on 15-25s of Sonnet latency — handoff creation returns as soon as
   snapshot, status flip, dual-write, documentation, PSA push, and
   notify() are committed. enrich_escalation_async opens its own DB
   session, runs both AI calls, updates handoff.ai_assessment +
   session.escalation_package, commits, and publishes a new
   `handoff_assessment_ready` event on the escalation bus. Frontend
   doesn't yet listen for that event — the magic-moment screen still
   shows a placeholder ("AI assessment is still generating. Reopen
   this view in a few seconds…") which is honest about the state.
   Live polling / auto-refresh on the bus event is the natural next
   step.

3) ChatSidebar entries now surface the problem summary as a secondary
   line and tag PSA-linked sessions with a monospace #ticket badge plus
   an "Escalated" pill on in-transit sessions. ChatListItem grew
   problem_summary, psa_ticket_id, and status fields; loadChats
   populates them from listSessions. The user couldn't tell their own
   sessions apart in the sidebar because they all rendered as "New
   Chat" with no distinguishing detail — this fixes that for any
   session, escalated or not.

Test plan
- Backend full suite: 1103 passed in 255.85s with -n auto.
- Frontend tsc -b clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-28 00:34:32 -04:00

448 lines
16 KiB
Python

"""Notification service — dispatches in-app + external notifications.
Entry point: `notify(event, account_id, payload, db)`.
Retry engine: `retry_failed_notifications(db)` called by APScheduler.
"""
import logging
import uuid
from datetime import datetime, timedelta, timezone
from typing import Any, Optional
import httpx
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.core.config import settings
from app.core.email import EmailService
from app.models.notification import Notification
from app.models.notification_config import NotificationConfig
from app.models.notification_log import NotificationLog
from app.models.user import User
logger = logging.getLogger(__name__)
# Exponential backoff schedule (seconds): 30s, 2m, 10m
_RETRY_DELAYS = [30, 120, 600]
# ---------------------------------------------------------------------------
# Public API
# ---------------------------------------------------------------------------
async def notify(
event: str,
account_id: uuid.UUID,
payload: dict[str, Any],
db: AsyncSession,
target_user_ids: Optional[list[uuid.UUID]] = None,
) -> None:
"""Main entry point — create in-app notifications + route to external channels.
IMPORTANT: This function does NOT commit or rollback. The caller owns the transaction.
In-app notifications are added to the session (flushed, not committed).
External channel delivery is fire-and-forget — failures are logged, not raised.
"""
try:
recipients = await _resolve_recipients(account_id, target_user_ids, db)
title = _build_notification_title(event, payload)
body = _build_notification_body(event, payload)
link = _build_notification_link(event, payload)
# Create in-app notification for each recipient
for user in recipients:
notification = Notification(
account_id=account_id,
user_id=user.id,
event=event,
title=title,
body=body,
link=link,
)
db.add(notification)
await db.flush()
# Route to active external channels (fire-and-forget per channel)
configs = await _get_active_configs(account_id, event, db)
for config in configs:
try:
await _deliver_to_channel(config, event, payload, db)
except Exception:
logger.exception(
"External delivery failed for config=%s event=%s", config.id, event
)
except Exception:
logger.exception("Failed to process notification event=%s account=%s", event, account_id)
async def retry_failed_notifications(db: AsyncSession) -> int:
"""Retry failed notification deliveries. Called by APScheduler."""
now = datetime.now(timezone.utc)
result = await db.execute(
select(NotificationLog)
.where(NotificationLog.status == "retrying")
.where(NotificationLog.next_retry_at <= now)
)
logs = result.scalars().all()
if not logs:
return 0
logger.info("Retrying %d failed notification deliveries", len(logs))
for log in logs:
# Load the config for this log entry
config_result = await db.execute(
select(NotificationConfig).where(NotificationConfig.id == log.notification_config_id)
)
config = config_result.scalar_one_or_none()
if not config or not config.is_active:
log.status = "exhausted"
log.last_error = "Config disabled or deleted"
continue
try:
await _attempt_delivery(config, log.event, log.payload)
log.status = "sent"
log.delivered_at = datetime.now(timezone.utc)
log.last_error = None
logger.info("Retry succeeded for log=%s event=%s", log.id, log.event)
except Exception as exc:
log.retry_count += 1
log.last_error = str(exc)[:1000]
if log.retry_count >= log.max_retries:
log.status = "exhausted"
logger.warning(
"Notification exhausted after %d retries: log=%s event=%s",
log.retry_count, log.id, log.event,
)
else:
delay = _RETRY_DELAYS[min(log.retry_count, len(_RETRY_DELAYS) - 1)]
log.next_retry_at = datetime.now(timezone.utc) + timedelta(seconds=delay)
logger.info(
"Notification retry %d/%d scheduled in %ds: log=%s",
log.retry_count, log.max_retries, delay, log.id,
)
await db.commit()
return len(logs)
async def send_test_notification(
config: NotificationConfig,
) -> tuple[bool, str]:
"""Send a test message through a channel config. Returns (success, message)."""
event = "test"
payload: dict[str, Any] = {}
try:
await _attempt_delivery(config, event, payload)
return True, "Test notification sent successfully"
except Exception as exc:
return False, f"Delivery failed: {exc}"
# ---------------------------------------------------------------------------
# Internal helpers
# ---------------------------------------------------------------------------
async def _get_active_configs(
account_id: uuid.UUID,
event: str,
db: AsyncSession,
) -> list[NotificationConfig]:
"""Get configs where channel is active and event is enabled."""
result = await db.execute(
select(NotificationConfig)
.where(NotificationConfig.account_id == account_id)
.where(NotificationConfig.is_active.is_(True))
)
configs = result.scalars().all()
# Filter to configs where this event is enabled
return [
c for c in configs
if c.events_enabled and c.events_enabled.get(event, False)
]
async def _resolve_recipients(
account_id: uuid.UUID,
target_user_ids: Optional[list[uuid.UUID]],
db: AsyncSession,
) -> list[User]:
"""Resolve notification recipients. Defaults to team admins + account owners + admins."""
if target_user_ids:
result = await db.execute(
select(User)
.where(User.id.in_(target_user_ids))
.where(User.account_id == account_id) # enforce tenant boundary
.where(User.is_active.is_(True))
)
return list(result.scalars().all())
# Default: account owners, admins, and team admins
result = await db.execute(
select(User)
.where(User.account_id == account_id)
.where(User.is_active.is_(True))
)
users = result.scalars().all()
return [
u for u in users
if u.account_role in ("owner", "admin") or u.is_team_admin
]
async def _deliver_to_channel(
config: NotificationConfig,
event: str,
payload: dict[str, Any],
db: AsyncSession,
) -> None:
"""Attempt delivery and create a NotificationLog entry."""
log = NotificationLog(
notification_config_id=config.id,
event=event,
payload=payload,
)
try:
await _attempt_delivery(config, event, payload)
log.status = "sent"
log.delivered_at = datetime.now(timezone.utc)
except Exception as exc:
log.status = "retrying"
log.retry_count = 0
log.last_error = str(exc)[:1000]
log.next_retry_at = datetime.now(timezone.utc) + timedelta(seconds=_RETRY_DELAYS[0])
logger.warning(
"Notification delivery failed (will retry): config=%s event=%s error=%s",
config.id, event, exc,
)
db.add(log)
async def _attempt_delivery(
config: NotificationConfig,
event: str,
payload: dict[str, Any],
) -> None:
"""Dispatch to the appropriate channel. Raises on failure."""
if config.channel == "email":
await _send_email(config, event, payload)
elif config.channel == "slack_webhook":
if not config.webhook_url:
raise ValueError("Slack webhook URL not configured")
await _send_slack_message(config.webhook_url, event, payload)
elif config.channel == "teams_webhook":
if not config.webhook_url:
raise ValueError("Teams webhook URL not configured")
await _send_teams_message(config.webhook_url, event, payload)
else:
raise ValueError(f"Unknown channel: {config.channel}")
async def _send_email(
config: NotificationConfig,
event: str,
payload: dict[str, Any],
) -> None:
"""Send notification via email using EmailService."""
title = _build_notification_title(event, payload)
body = _build_notification_body(event, payload)
link = _build_notification_link(event, payload)
full_link = None
if link and settings.FRONTEND_URL:
full_link = f"{settings.FRONTEND_URL.rstrip('/')}{link}"
recipients = config.email_addresses or []
if not recipients:
raise ValueError("No email addresses configured for email channel")
failures = []
for email in recipients:
success = await EmailService.send_notification_email(
to_email=email,
title=title,
body=body,
link_url=full_link,
)
if not success:
failures.append(email)
if failures:
raise RuntimeError(f"Failed to send notification email to: {', '.join(failures)}")
async def _send_slack_message(
webhook_url: str,
event: str,
payload: dict[str, Any],
) -> None:
"""POST notification to Slack incoming webhook."""
title = _build_notification_title(event, payload)
body = _build_notification_body(event, payload)
link = _build_notification_link(event, payload)
blocks: list[dict[str, Any]] = [
{
"type": "header",
"text": {"type": "plain_text", "text": f"\U0001f514 {title}", "emoji": True},
},
{
"type": "section",
"text": {"type": "mrkdwn", "text": body},
},
]
if link and settings.FRONTEND_URL:
full_url = f"{settings.FRONTEND_URL.rstrip('/')}{link}"
blocks.append({
"type": "actions",
"elements": [{
"type": "button",
"text": {"type": "plain_text", "text": "Open in ResolutionFlow", "emoji": True},
"url": full_url,
}],
})
slack_payload = {"blocks": blocks}
async with httpx.AsyncClient(timeout=10) as client:
resp = await client.post(webhook_url, json=slack_payload)
if resp.status_code != 200 or resp.text.strip() != "ok":
raise RuntimeError(
f"Slack webhook failed (status={resp.status_code}): {resp.text[:200]}"
)
async def _send_teams_message(
webhook_url: str,
event: str,
payload: dict[str, Any],
) -> None:
"""POST notification to Microsoft Teams incoming webhook (Adaptive Card)."""
title = _build_notification_title(event, payload)
body = _build_notification_body(event, payload)
link = _build_notification_link(event, payload)
card_body: list[dict[str, Any]] = [
{"type": "TextBlock", "text": title, "weight": "Bolder", "size": "Medium"},
{"type": "TextBlock", "text": body, "wrap": True},
]
actions: list[dict[str, Any]] = []
if link and settings.FRONTEND_URL:
full_url = f"{settings.FRONTEND_URL.rstrip('/')}{link}"
actions.append({
"type": "Action.OpenUrl",
"title": "Open in ResolutionFlow",
"url": full_url,
})
teams_payload = {
"type": "message",
"attachments": [{
"contentType": "application/vnd.microsoft.card.adaptive",
"content": {
"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
"type": "AdaptiveCard",
"version": "1.4",
"body": card_body,
"actions": actions,
},
}],
}
async with httpx.AsyncClient(timeout=10) as client:
resp = await client.post(webhook_url, json=teams_payload)
if resp.status_code not in (200, 202):
raise RuntimeError(
f"Teams webhook returned {resp.status_code}: {resp.text[:200]}"
)
# ---------------------------------------------------------------------------
# Content builders
# ---------------------------------------------------------------------------
def _build_notification_title(event: str, payload: dict[str, Any]) -> str:
"""Human-readable title per event type."""
titles = {
# Distinguishability matters in the bell panel: with a generic title
# ("Session escalated by Jane") two different escalations from the
# same junior look like a duplicate notification. Including a short
# problem snippet (and ticket number if present) lets the senior
# tell them apart at a glance.
"session.escalated": "Escalation from {engineer_name}{ticket_suffix}: {problem_snippet}",
"session.high_priority": "High-priority session started: {ticket_number}",
"proposal.pending": "New flow proposal: {title}",
"proposal.approved": "Flow proposal approved: {title}",
"knowledge_gap.detected": "Knowledge gap detected: {gap_type}",
"test": "Test Notification from ResolutionFlow",
}
# Build the escalation-specific derived fields. Done here rather than at
# the call site so every dispatch path (legacy /escalate shim, /handoff,
# any future entry point) gets consistent formatting without each one
# having to repeat the snippet logic.
if event == "session.escalated":
problem = (payload.get("problem_summary") or "").strip()
if not problem or problem.upper() == "N/A":
problem_snippet = "(no summary provided)"
elif len(problem) > 70:
problem_snippet = problem[:67].rstrip() + ""
else:
problem_snippet = problem
ticket = payload.get("psa_ticket_id") or payload.get("ticket_number")
ticket_suffix = f" · #{ticket}" if ticket else ""
payload = {**payload, "problem_snippet": problem_snippet, "ticket_suffix": ticket_suffix}
template = titles.get(event, f"Notification: {event}")
try:
return template.format(**payload)
except KeyError:
return template
def _build_notification_body(event: str, payload: dict[str, Any]) -> str:
"""Body text per event type."""
bodies = {
"session.escalated": "Engineer {engineer_name} has escalated a FlowPilot session and needs assistance.",
"session.high_priority": "A new high-priority troubleshooting session has been started for ticket {ticket_number}.",
"proposal.pending": "A new flow proposal \"{title}\" is awaiting review in the review queue.",
"proposal.approved": "The flow proposal \"{title}\" has been approved and is ready for use.",
"knowledge_gap.detected": "A {gap_type} knowledge gap has been identified. Review recommended.",
"test": "This is a test notification to verify your notification channel is working correctly.",
}
template = bodies.get(event, f"Event: {event}")
try:
return template.format(**payload)
except KeyError:
return template
def _build_notification_link(event: str, payload: dict[str, Any]) -> Optional[str]:
"""In-app link per event type. Returns path (no host)."""
links: dict[str, str] = {
# ?pickup=true triggers the senior-tech handoff/pickup flow on the
# session page (magic-moment screen for handoff-based escalations,
# legacy SessionBriefing for `requesting_escalation` sessions).
# Without it the senior lands on a session-detail GET they can't
# access pre-pickup, which the user perceives as a dead notification.
"session.escalated": "/pilot/{session_id}?pickup=true",
"session.high_priority": "/pilot/{session_id}",
"proposal.pending": "/review-queue",
"proposal.approved": "/review-queue",
"knowledge_gap.detected": "/analytics/flowpilot",
}
template = links.get(event)
if template is None:
return None
try:
return template.format(**payload)
except KeyError:
return template