from __future__ import annotations
from datetime import datetime
from typing import Optional, List, TYPE_CHECKING
from pydantic import BaseModel

from app.models.project import ProjectStatus

if TYPE_CHECKING:
    from app.schemas.todo import Todo


class ProjectBase(BaseModel):
    name: str
    description: Optional[str] = None
    status: ProjectStatus = ProjectStatus.ACTIVE


class ProjectCreate(ProjectBase):
    pass


class ProjectUpdate(BaseModel):
    name: Optional[str] = None
    description: Optional[str] = None
    status: Optional[ProjectStatus] = None


class Project(ProjectBase):
    id: int
    created_at: datetime
    updated_at: Optional[datetime] = None

    class Config:
        from_attributes = True


class ProjectWithTodos(Project):
    todos: List[Todo] = []

    class Config:
        from_attributes = True


class ProjectListResponse(BaseModel):
    items: List[Project]
    total: int
    page: int
    per_page: int
    has_next: bool
    has_prev: bool