app/schemas/auth.py

from datetime import datetime
from typing import Optional
from pydantic import BaseModel, EmailStr, Field, field_validator
from app.models.user import SoftwareLevel, HardwareLevel


class SignupRequest(BaseModel):
    """Request schema for user registration"""
    email: EmailStr
    password: str = Field(..., min_length=8, description="Password must be at least 8 characters")
    software_level: SoftwareLevel
    hardware_level: HardwareLevel
    learning_goals: str = Field(..., max_length=1000, description="Learning objectives (max 1000 chars)")

    @field_validator('email')
    @classmethod
    def normalize_email(cls, v: str) -> str:
        """Normalize email to lowercase"""
        return v.lower().strip()


class SigninRequest(BaseModel):
    """Request schema for user authentication"""
    email: EmailStr
    password: str

    @field_validator('email')
    @classmethod
    def normalize_email(cls, v: str) -> str:
        """Normalize email to lowercase"""
        return v.lower().strip()


class TokenResponse(BaseModel):
    """Response schema for successful authentication"""
    access_token: str
    token_type: str = "bearer"


class UserResponse(BaseModel):
    """Response schema for user profile data"""
    id: int
    email: str
    username: Optional[str] = None
    software_level: str
    hardware_level: str
    learning_goals: str
    created_at: datetime

    class Config:
        from_attributes = True