from pydantic import BaseModel
from datetime import datetime
from typing import Optional


class PostBase(BaseModel):
    title: str
    content: str
    image_url: Optional[str] = None
    is_announcement: bool = False
    is_prayer_request: bool = False


class PostCreate(PostBase):
    pass


class PostUpdate(BaseModel):
    title: Optional[str] = None
    content: Optional[str] = None
    image_url: Optional[str] = None
    is_announcement: Optional[bool] = None
    is_prayer_request: Optional[bool] = None


class PostResponse(PostBase):
    id: int
    author_id: int
    created_at: datetime
    updated_at: datetime
    author_name: Optional[str] = None
    likes_count: int = 0
    comments_count: int = 0

    class Config:
        from_attributes = True


class CommentBase(BaseModel):
    content: str


class CommentCreate(CommentBase):
    pass


class CommentResponse(CommentBase):
    id: int
    post_id: int
    author_id: int
    author_name: Optional[str] = None
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True