from datetime import datetime

from pydantic import BaseModel, ConfigDict, EmailStr, Field


class UserBase(BaseModel):
    email: EmailStr
    username: str = Field(min_length=3, max_length=100)
    full_name: str = Field(min_length=1, max_length=255)
    employee_id: str | None = Field(default=None, max_length=100)
    phone: str | None = Field(default=None, max_length=50)
    occupation: str | None = Field(default=None, max_length=150)


class UserCreate(UserBase):
    password: str = Field(min_length=8, max_length=128)


class UserUpdate(BaseModel):
    full_name: str | None = Field(default=None, min_length=1, max_length=255)
    employee_id: str | None = Field(default=None, max_length=100)
    phone: str | None = Field(default=None, max_length=50)
    occupation: str | None = Field(default=None, max_length=150)


class ChangePasswordRequest(BaseModel):
    current_password: str = Field(min_length=1, max_length=128)
    new_password: str = Field(min_length=8, max_length=128)


class UserResponse(UserBase):
    model_config = ConfigDict(from_attributes=True)

    id: int
    is_active: bool
    created_at: datetime
    updated_at: datetime


class LoginRequest(BaseModel):
    username_or_email: str = Field(min_length=1)
    password: str = Field(min_length=1)
    remember_me: bool = False


class TokenResponse(BaseModel):
    access_token: str
    refresh_token: str
    token_type: str = "bearer"
    user: UserResponse


class ForgotPasswordRequest(BaseModel):
    email: EmailStr


class ResetPasswordRequest(BaseModel):
    token: str
    new_password: str = Field(min_length=8, max_length=128)


class MessageResponse(BaseModel):
    message: str
    reset_token: str | None = None