"""Author RAG Chatbot SaaS — Pydantic Schemas for Auth."""

from typing import Literal

from pydantic import BaseModel, EmailStr, Field, field_validator

ClientId = Literal["author", "superadmin"]


class RegisterRequest(BaseModel):
    """Request body for author registration."""

    email: EmailStr
    password: str = Field(..., min_length=8, max_length=128)
    full_name: str = Field(..., min_length=1, max_length=255)
    referral_code: str | None = Field(None, max_length=50, description="Optional referral code from ?ref=")

    @field_validator("password")
    @classmethod
    def password_strength(cls, v: str) -> str:
        """Enforce password complexity: uppercase, digit, special char."""
        if not any(c.isupper() for c in v):
            raise ValueError("Password must contain at least one uppercase letter")
        if not any(c.isdigit() for c in v):
            raise ValueError("Password must contain at least one digit")
        if not any(c in "!@#$%^&*()_+-=[]{}|;':\",./<>?" for c in v):
            raise ValueError("Password must contain at least one special character")
        return v


class LoginRequest(BaseModel):
    """Request body for author/superadmin login."""

    email: str = Field(..., min_length=1)  # Accepts email or username
    password: str = Field(..., min_length=1)
    client_id: ClientId = "author"


class RefreshRequest(BaseModel):
    """Request body for token refresh."""

    refresh_token: str = ""
    client_id: ClientId = "author"


class LogoutRequest(BaseModel):
    """Request body for scoped logout."""

    client_id: ClientId = "author"


class TokenResponse(BaseModel):
    """Response containing JWT token pair."""

    access_token: str
    refresh_token: str
    token_type: str = "bearer"
    author_slug: str | None = None
    is_superadmin: bool = False
    role: str | None = None


class UserResponse(BaseModel):
    """Public user profile response."""

    id: str
    email: str
    full_name: str | None
    role: str
    bot_name: str
    timezone: str
    chatbot_is_active: bool

    model_config = {"from_attributes": True}