mirror of
https://github.com/DRYTRIX/TimeTracker.git
synced 2026-05-19 12:50:11 -05:00
Dries Peeters
b4486a627f
- Webhook models: remove duplicate index definitions so db.create_all() no longer raises 'index already exists' (columns already have index=True) - ImportService: fix circular import by late-importing ClientService, ProjectService, TimeTrackingService in __init__ - reports: fix F823 by renaming unpack variable _ to _entry_count to avoid shadowing gettext _ in export_task_excel() - Code quality: add .flake8 with extend-ignore so flake8 CI passes; simplify pyproject.toml isort config (drop unsupported options) - Format: run black and isort on app/ - tests: restore minimal app fixture in test_import_export_models
129 lines
3.6 KiB
Python
129 lines
3.6 KiB
Python
"""
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Event bus for domain events.
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Provides decoupled event-driven architecture.
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"""
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from functools import wraps
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from typing import Any, Callable, Dict, List
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from flask import current_app
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from app.constants import WebhookEvent
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class EventBus:
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"""Simple event bus for domain events"""
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def __init__(self):
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self._handlers: Dict[str, List[Callable]] = {}
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def subscribe(self, event_type: str, handler: Callable) -> None:
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"""
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Subscribe a handler to an event type.
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Args:
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event_type: Event type (e.g., 'time_entry.created')
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handler: Function to call when event is emitted
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"""
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if event_type not in self._handlers:
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self._handlers[event_type] = []
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self._handlers[event_type].append(handler)
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def unsubscribe(self, event_type: str, handler: Callable) -> None:
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"""Unsubscribe a handler from an event type"""
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if event_type in self._handlers:
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try:
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self._handlers[event_type].remove(handler)
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except ValueError:
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pass
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def emit(self, event_type: str, data: Dict[str, Any]) -> None:
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"""
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Emit an event to all subscribed handlers.
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Args:
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event_type: Event type
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data: Event data
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"""
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handlers = self._handlers.get(event_type, [])
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for handler in handlers:
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try:
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handler(event_type, data)
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except Exception as e:
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current_app.logger.error(f"Error in event handler for {event_type}: {e}", exc_info=True)
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def clear(self) -> None:
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"""Clear all event handlers"""
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self._handlers.clear()
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# Global event bus instance
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_event_bus = EventBus()
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def get_event_bus() -> EventBus:
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"""Get the global event bus instance"""
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return _event_bus
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def emit_event(event_type: str, data: Dict[str, Any]) -> None:
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"""
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Emit an event using the global event bus.
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Args:
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event_type: Event type
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data: Event data
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"""
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_event_bus.emit(event_type, data)
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def subscribe_to_event(event_type: str):
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"""
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Decorator to subscribe a function to an event type.
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Usage:
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@subscribe_to_event('time_entry.created')
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def handle_time_entry_created(event_type, data):
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# Handle event
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"""
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def decorator(func: Callable) -> Callable:
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_event_bus.subscribe(event_type, func)
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return func
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return decorator
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# Example event handlers
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@subscribe_to_event(WebhookEvent.TIME_ENTRY_CREATED.value)
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def handle_time_entry_created(event_type: str, data: Dict[str, Any]) -> None:
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"""Handle time entry created event"""
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try:
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from app.utils.webhook_dispatcher import dispatch_webhook
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dispatch_webhook(event_type, data)
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except Exception as e:
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current_app.logger.error(f"Failed to dispatch webhook for {event_type}: {e}")
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@subscribe_to_event(WebhookEvent.PROJECT_CREATED.value)
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def handle_project_created(event_type: str, data: Dict[str, Any]) -> None:
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"""Handle project created event"""
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try:
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from app.utils.webhook_dispatcher import dispatch_webhook
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dispatch_webhook(event_type, data)
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except Exception as e:
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current_app.logger.error(f"Failed to dispatch webhook for {event_type}: {e}")
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@subscribe_to_event(WebhookEvent.INVOICE_CREATED.value)
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def handle_invoice_created(event_type: str, data: Dict[str, Any]) -> None:
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"""Handle invoice created event"""
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try:
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from app.utils.webhook_dispatcher import dispatch_webhook
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dispatch_webhook(event_type, data)
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except Exception as e:
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current_app.logger.error(f"Failed to dispatch webhook for {event_type}: {e}")
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