from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime

class Post(BaseModel):
    id: str
    username: str
    content: str
    createdAt: str
    updatedAt: str
    likes: int
    comments: int

class PostCreateRequest(BaseModel):
    username: str
    content: str

class PostUpdateRequest(BaseModel):
    username: str
    content: str

class Comment(BaseModel):
    id: str
    postId: str
    username: str
    content: str
    createdAt: str
    updatedAt: str

class CommentCreateRequest(BaseModel):
    username: str
    content: str

class CommentUpdateRequest(BaseModel):
    username: str
    content: str

class LikeRequest(BaseModel):
    username: str