from datetime import datetime
from typing import List, Optional

from pydantic import BaseModel, ConfigDict

from app.models.task import TaskPriority, TaskStatus


# Shared properties
class TaskBase(BaseModel):
    title: Optional[str] = None
    description: Optional[str] = None
    status: Optional[TaskStatus] = None
    priority: Optional[TaskPriority] = None
    due_date: Optional[datetime] = None


# Properties to receive via API on creation
class TaskCreate(TaskBase):
    title: str
    status: TaskStatus = TaskStatus.TODO
    priority: TaskPriority = TaskPriority.MEDIUM


# Properties to receive via API on update
class TaskUpdate(TaskBase):
    pass


# Properties shared by models stored in DB
class TaskInDBBase(TaskBase):
    id: int
    title: str
    status: TaskStatus
    priority: TaskPriority
    owner_id: int
    created_at: datetime
    updated_at: datetime
    completed_at: Optional[datetime] = None

    model_config = ConfigDict(from_attributes=True)


# Properties to return via API
class Task(TaskInDBBase):
    pass


# Properties for tasks with assignee information
class TaskWithAssignees(Task):
    assignee_ids: List[int] = []


# Properties stored in DB but not returned by API
class TaskInDB(TaskInDBBase):
    is_deleted: bool = False