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

class UserBase(BaseModel):
    username: str = Field(..., min_length=3, max_length=50)
    email: EmailStr = Field(...)
    first_name: Optional[str] = Field(None, max_length=50)
    last_name: Optional[str] = Field(None, max_length=50)
    bio: Optional[str] = Field(None, max_length=500)
    profile_picture: Optional[str] = Field(None)
    relationship_status: Optional[str] = Field(None)
    interests: Optional[str] = Field(None, max_length=500)
    is_active: bool = Field(default=True)

class UserCreate(UserBase):
    password: str = Field(..., min_length=8, max_length=100)

    class Config:
        schema_extra = {
            "example": {
                "username": "johndoe",
                "email": "john@example.com",
                "password": "securepass123",
                "first_name": "John",
                "last_name": "Doe",
                "bio": "Hello, I'm John!",
                "profile_picture": "https://example.com/picture.jpg",
                "relationship_status": "single",
                "interests": "Reading, hiking, photography"
            }
        }

class UserResponse(UserBase):
    id: int
    last_login: Optional[datetime]
    created_at: datetime
    updated_at: datetime

    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "id": 1,
                "username": "johndoe",
                "email": "john@example.com",
                "first_name": "John",
                "last_name": "Doe",
                "bio": "Hello, I'm John!",
                "profile_picture": "https://example.com/picture.jpg",
                "relationship_status": "single",
                "interests": "Reading, hiking, photography",
                "is_active": True,
                "last_login": "2023-01-01T12:00:00",
                "created_at": "2023-01-01T10:00:00",
                "updated_at": "2023-01-01T10:00:00"
            }
        }