feat: implement automation module
- Event-based triggers (Phase 1): - Trigger/TriggerLog models with field_change type - TriggerService for condition evaluation and action execution - Trigger CRUD API endpoints - Task integration (status, assignee, priority changes) - Frontend: TriggerList, TriggerForm components - Weekly reports (Phase 2): - ScheduledReport/ReportHistory models - ReportService for stats generation - APScheduler for Friday 16:00 job - Report preview/generate/history API - Frontend: WeeklyReportPreview, ReportHistory components - Tests: 23 new tests (14 triggers + 9 reports) - OpenSpec: add-automation change archived 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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beabigegg
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backend/app/services/trigger_service.py
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backend/app/services/trigger_service.py
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import uuid
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from typing import List, Dict, Any, Optional
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from sqlalchemy.orm import Session
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from app.models import Trigger, TriggerLog, Task, User, Project
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from app.services.notification_service import NotificationService
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class TriggerService:
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"""Service for evaluating and executing triggers."""
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SUPPORTED_FIELDS = ["status_id", "assignee_id", "priority"]
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SUPPORTED_OPERATORS = ["equals", "not_equals", "changed_to", "changed_from"]
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@staticmethod
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def evaluate_triggers(
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db: Session,
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task: Task,
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old_values: Dict[str, Any],
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new_values: Dict[str, Any],
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current_user: User,
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) -> List[TriggerLog]:
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"""Evaluate all active triggers for a project when task values change."""
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logs = []
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# Get active field_change triggers for the project
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triggers = db.query(Trigger).filter(
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Trigger.project_id == task.project_id,
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Trigger.is_active == True,
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Trigger.trigger_type == "field_change",
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).all()
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for trigger in triggers:
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if TriggerService._check_conditions(trigger.conditions, old_values, new_values):
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log = TriggerService._execute_actions(db, trigger, task, current_user, old_values, new_values)
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logs.append(log)
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return logs
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@staticmethod
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def _check_conditions(
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conditions: Dict[str, Any],
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old_values: Dict[str, Any],
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new_values: Dict[str, Any],
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) -> bool:
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"""Check if trigger conditions are met."""
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field = conditions.get("field")
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operator = conditions.get("operator")
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value = conditions.get("value")
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if field not in TriggerService.SUPPORTED_FIELDS:
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return False
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old_value = old_values.get(field)
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new_value = new_values.get(field)
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if operator == "equals":
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return new_value == value
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elif operator == "not_equals":
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return new_value != value
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elif operator == "changed_to":
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return old_value != value and new_value == value
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elif operator == "changed_from":
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return old_value == value and new_value != value
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return False
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@staticmethod
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def _execute_actions(
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db: Session,
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trigger: Trigger,
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task: Task,
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current_user: User,
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old_values: Dict[str, Any],
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new_values: Dict[str, Any],
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) -> TriggerLog:
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"""Execute trigger actions and log the result."""
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actions = trigger.actions if isinstance(trigger.actions, list) else [trigger.actions]
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executed_actions = []
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error_message = None
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try:
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for action in actions:
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action_type = action.get("type")
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if action_type == "notify":
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TriggerService._execute_notify_action(db, action, task, current_user, old_values, new_values)
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executed_actions.append({"type": action_type, "status": "success"})
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status = "success"
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except Exception as e:
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status = "failed"
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error_message = str(e)
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executed_actions.append({"type": "error", "message": str(e)})
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log = TriggerLog(
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id=str(uuid.uuid4()),
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trigger_id=trigger.id,
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task_id=task.id,
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status=status,
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details={
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"trigger_name": trigger.name,
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"old_values": old_values,
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"new_values": new_values,
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"actions_executed": executed_actions,
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},
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error_message=error_message,
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)
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db.add(log)
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return log
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@staticmethod
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def _execute_notify_action(
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db: Session,
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action: Dict[str, Any],
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task: Task,
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current_user: User,
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old_values: Dict[str, Any],
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new_values: Dict[str, Any],
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) -> None:
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"""Execute a notify action."""
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target = action.get("target", "assignee")
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template = action.get("template", "任務 {task_title} 已觸發自動化規則")
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# Resolve target user
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target_user_id = TriggerService._resolve_target(task, target)
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if not target_user_id:
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return
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# Don't notify the user who triggered the action
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if target_user_id == current_user.id:
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return
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# Format message with variables
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message = TriggerService._format_template(template, task, old_values, new_values)
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NotificationService.create_notification(
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db=db,
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user_id=target_user_id,
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notification_type="status_change",
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reference_type="task",
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reference_id=task.id,
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title=f"自動化通知: {task.title}",
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message=message,
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)
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@staticmethod
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def _resolve_target(task: Task, target: str) -> Optional[str]:
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"""Resolve notification target to user ID."""
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if target == "assignee":
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return task.assignee_id
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elif target == "creator":
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return task.created_by
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elif target == "project_owner":
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return task.project.owner_id if task.project else None
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elif target.startswith("user:"):
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return target.split(":", 1)[1]
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return None
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@staticmethod
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def _format_template(
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template: str,
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task: Task,
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old_values: Dict[str, Any],
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new_values: Dict[str, Any],
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) -> str:
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"""Format message template with task variables."""
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replacements = {
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"{task_title}": task.title,
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"{task_id}": task.id,
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"{old_value}": str(old_values.get("status_id", old_values.get("assignee_id", old_values.get("priority", "")))),
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"{new_value}": str(new_values.get("status_id", new_values.get("assignee_id", new_values.get("priority", "")))),
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}
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result = template
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for key, value in replacements.items():
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result = result.replace(key, value)
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return result
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@staticmethod
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def log_execution(
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db: Session,
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trigger: Trigger,
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task: Optional[Task],
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status: str,
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details: Optional[Dict[str, Any]] = None,
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error_message: Optional[str] = None,
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) -> TriggerLog:
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"""Log a trigger execution."""
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log = TriggerLog(
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id=str(uuid.uuid4()),
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trigger_id=trigger.id,
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task_id=task.id if task else None,
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status=status,
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details=details,
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error_message=error_message,
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)
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db.add(log)
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return log
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