from sqlalchemy import Column, Integer, String, Text, DateTime, Enum
from sqlalchemy.sql import func
from enum import Enum as PyEnum
from app.db.base import Base


class TaskStatus(PyEnum):
    PENDING = "pending"
    IN_PROGRESS = "in_progress"
    COMPLETED = "completed"


class TaskPriority(PyEnum):
    LOW = "low"
    MEDIUM = "medium"
    HIGH = "high"


class Task(Base):
    __tablename__ = "tasks"

    id = Column(Integer, primary_key=True, index=True)
    title = Column(String(200), nullable=False, index=True)
    description = Column(Text, nullable=True)
    status = Column(Enum(TaskStatus), default=TaskStatus.PENDING, nullable=False)
    priority = Column(Enum(TaskPriority), default=TaskPriority.MEDIUM, nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now())
    updated_at = Column(
        DateTime(timezone=True), onupdate=func.now(), server_default=func.now()
    )