tasks.py

import uuid
import time
from enum import Enum, auto
from typing import Dict, List, Any, Optional, Set
from dataclasses import dataclass, field

class TaskStatus(Enum):
    PENDING = auto()
    IN_PROGRESS = auto()
    BLOCKED = auto()
    COMPLETED = auto()
    FAILED = auto()

class TaskPriority(Enum):
    LOW = auto()
    MEDIUM = auto()
    HIGH = auto()
    CRITICAL = auto()

@dataclass
class Task:
    id: str = field(default_factory=lambda: str(uuid.uuid4()))
    title: str = ""
    description: str = ""
    creator_id: str = ""
    assignee_id: Optional[str] = None
    status: TaskStatus = TaskStatus.PENDING
    priority: TaskPriority = TaskPriority.MEDIUM
    dependencies: Set[str] = field(default_factory=set)
    subtasks: List[str] = field(default_factory=list)
    parent_task_id: Optional[str] = None
    created_at: float = field(default_factory=time.time)
    updated_at: float = field(default_factory=time.time)
    completed_at: Optional[float] = None
    results: Dict[str, Any] = field(default_factory=dict)