"""User schemas."""

from pydantic import BaseModel, Field, field_validator


class UserUpdate(BaseModel):
    """Schema for updating a user."""

    name: str | None = Field(
        None,
        min_length=1,
        max_length=100,
        description="User full name",
    )
    plan_id: int | None = Field(None, description="User plan ID")
    credits: int | None = Field(None, ge=0, description="User credits")
    is_active: bool | None = Field(None, description="Whether user is active")
    role: str | None = Field(None, description="User role (admin or user)")

    @field_validator("role")
    @classmethod
    def validate_role(cls, v: str | None) -> str | None:
        """Validate that role is either 'user' or 'admin'."""
        if v is not None and v not in {"user", "admin"}:
            msg = "Role must be either 'user' or 'admin'"
            raise ValueError(msg)
        return v