from pydantic import BaseModel


class GroupBrief(BaseModel):
    """Brief group info for embedding in user responses."""

    id: int
    name: str

    class Config:
        from_attributes = True


class LoginRequest(BaseModel):
    username: str
    password: str


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


class UserCreate(BaseModel):
    username: str
    password: str | None = None  # Optional when advanced auth is enabled
    email: str | None = None
    role: str = "user"
    group_ids: list[int] | None = None


class UserUpdate(BaseModel):
    username: str | None = None
    password: str | None = None
    email: str | None = None
    role: str | None = None
    is_active: bool | None = None
    group_ids: list[int] | None = None


class UserResponse(BaseModel):
    id: int
    username: str
    email: str | None = None
    role: str  # Deprecated, kept for backward compatibility
    is_active: bool
    is_admin: bool  # Computed from role and group membership
    auth_source: str = "local"  # "local" or "ldap"
    groups: list[GroupBrief] = []
    permissions: list[str] = []  # All permissions from groups
    created_at: str

    class Config:
        from_attributes = True


class ChangePasswordRequest(BaseModel):
    current_password: str
    new_password: str


class SetupRequest(BaseModel):
    auth_enabled: bool
    admin_username: str | None = None
    admin_password: str | None = None


class SetupResponse(BaseModel):
    auth_enabled: bool
    admin_created: bool | None = None


class ForgotPasswordRequest(BaseModel):
    email: str


class ForgotPasswordResponse(BaseModel):
    message: str


class ResetPasswordRequest(BaseModel):
    user_id: int


class ResetPasswordResponse(BaseModel):
    message: str


class SMTPSettings(BaseModel):
    smtp_host: str
    smtp_port: int
    smtp_username: str | None = None  # Optional when auth is disabled
    smtp_password: str | None = None  # Optional for read operations or when auth is disabled
    smtp_security: str = "starttls"  # 'starttls', 'ssl', 'none'
    smtp_auth_enabled: bool = True
    smtp_from_email: str
    smtp_from_name: str = "BamBuddy"
    # Deprecated field for backward compatibility
    smtp_use_tls: bool | None = None


class TestSMTPRequest(BaseModel):
    test_recipient: str


class TestSMTPResponse(BaseModel):
    success: bool
    message: str