feat(tools): Phase T.1-T.4 complete - manifest system, registry, implementations, runtime, collaboration, scheduler

backend/app/tools/implementations/task_manager.py

@@ -0,0 +1,194 @@
+"""
+Task Manager Tool
+
+Task creation, management and status tracking.
+"""
+
+import uuid
+from typing import Dict, Any, List, Optional
+from dataclasses import dataclass, field
+from datetime import datetime
+from enum import Enum
+
+
+class TaskStatus(str, Enum):
+    """Task status"""
+
+    PENDING = "pending"
+    RUNNING = "running"
+    COMPLETED = "completed"
+    FAILED = "failed"
+
+
+@dataclass
+class Task:
+    """Task definition"""
+
+    id: str
+    name: str
+    description: str
+    status: TaskStatus = TaskStatus.PENDING
+    created_at: datetime = field(default_factory=datetime.utcnow)
+    scheduled_at: Optional[datetime] = None
+    completed_at: Optional[datetime] = None
+    result: Optional[Any] = None
+    error: Optional[str] = None
+
+
+class TaskManager:
+    """Task manager tool"""
+
+    def __init__(self, config: dict):
+        self._tasks: Dict[str, Task] = {}
+
+    async def create_task(
+        self,
+        name: str,
+        description: str,
+        scheduled_at: Optional[datetime] = None,
+    ) -> Dict[str, Any]:
+        """Create a new task"""
+        task_id = str(uuid.uuid4())[:8]
+        task = Task(
+            id=task_id,
+            name=name,
+            description=description,
+            scheduled_at=scheduled_at,
+        )
+        self._tasks[task_id] = task
+
+        return {
+            "status": "success",
+            "result": {
+                "id": task_id,
+                "name": task.name,
+                "status": task.status.value,
+                "created_at": task.created_at.isoformat(),
+            },
+        }
+
+    async def list_tasks(
+        self,
+        status: Optional[str] = None,
+    ) -> Dict[str, Any]:
+        """List tasks with optional status filter"""
+        tasks = list(self._tasks.values())
+
+        if status:
+            tasks = [t for t in tasks if t.status.value == status]
+
+        return {
+            "status": "success",
+            "result": [
+                {
+                    "id": t.id,
+                    "name": t.name,
+                    "description": t.description,
+                    "status": t.status.value,
+                    "created_at": t.created_at.isoformat(),
+                    "scheduled_at": t.scheduled_at.isoformat() if t.scheduled_at else None,
+                }
+                for t in tasks
+            ],
+        }
+
+    async def get_task(self, task_id: str) -> Dict[str, Any]:
+        """Get task details"""
+        task = self._tasks.get(task_id)
+        if not task:
+            return {"status": "error", "error": "Task not found"}
+
+        return {
+            "status": "success",
+            "result": {
+                "id": task.id,
+                "name": task.name,
+                "description": task.description,
+                "status": task.status.value,
+                "result": task.result,
+                "error": task.error,
+                "created_at": task.created_at.isoformat(),
+                "completed_at": task.completed_at.isoformat() if task.completed_at else None,
+            },
+        }
+
+    async def update_task_status(
+        self,
+        task_id: str,
+        status: str,
+    ) -> Dict[str, Any]:
+        """Update task status"""
+        task = self._tasks.get(task_id)
+        if not task:
+            return {"status": "error", "error": "Task not found"}
+
+        try:
+            task.status = TaskStatus(status)
+            return {"status": "success"}
+        except ValueError:
+            return {"status": "error", "error": f"Invalid status: {status}"}
+
+    async def complete_task(
+        self,
+        task_id: str,
+        result: Any,
+    ) -> Dict[str, Any]:
+        """Mark task as completed"""
+        task = self._tasks.get(task_id)
+        if not task:
+            return {"status": "error", "error": "Task not found"}
+
+        task.status = TaskStatus.COMPLETED
+        task.result = result
+        task.completed_at = datetime.utcnow()
+
+        return {"status": "success"}
+
+    async def fail_task(
+        self,
+        task_id: str,
+        error: str,
+    ) -> Dict[str, Any]:
+        """Mark task as failed"""
+        task = self._tasks.get(task_id)
+        if not task:
+            return {"status": "error", "error": "Task not found"}
+
+        task.status = TaskStatus.FAILED
+        task.error = error
+        task.completed_at = datetime.utcnow()
+
+        return {"status": "success"}
+
+    async def delete_task(self, task_id: str) -> Dict[str, Any]:
+        """Delete a task"""
+        if task_id not in self._tasks:
+            return {"status": "error", "error": "Task not found"}
+
+        del self._tasks[task_id]
+        return {"status": "success"}
+
+
+def create_task_manager_executor(config: dict):
+    """Create task manager executor"""
+    manager = TaskManager(config)
+
+    async def execute(command: str, parameters: dict) -> dict:
+        if command == "create_task":
+            return await manager.create_task(**parameters)
+        elif command == "list_tasks":
+            return await manager.list_tasks(**parameters)
+        elif command == "get_task":
+            return await manager.get_task(**parameters)
+        elif command == "update_task_status":
+            return await manager.update_task_status(**parameters)
+        elif command == "complete_task":
+            return await manager.complete_task(**parameters)
+        elif command == "fail_task":
+            return await manager.fail_task(**parameters)
+        elif command == "delete_task":
+            return await manager.delete_task(**parameters)
+        else:
+            return {"status": "error", "error": f"Unknown command: {command}"}
+
+    return execute