from __future__ import annotations

from typing import Any

from pydantic import root_validator
from sqlalchemy.exc import IntegrityError
from sqlmodel import Field, SQLModel

from ..config import Config
from .connection import Connection


class UserBase(SQLModel):
    name: str = Field(primary_key=True)
    email: str

    country: str | None = Field(default=None)
    state: str | None = Field(default=None)
    city: str | None = Field(default=None)
    organization: str | None = Field(default=None)
    organizational_unit: str | None = Field(default=None)


class User(UserBase, table=True):
    password: str

    @classmethod
    def create(cls, **kwargs) -> User | None:
        """
        Create a new user in the database.
        """

        try:
            with Connection.session as db:
                user = cls.from_orm(UserCreate(**kwargs))

                db.add(user)
                db.commit()
                db.refresh(user)

                return user

        except IntegrityError:
            # user already existed
            return None

    @classmethod
    def get(cls, name: str) -> User | None:
        with Connection.session as db:
            return db.get(cls, name)


class UserCreate(UserBase):
    password: str | None = Field(default=None)
    password_clear: str | None = Field(default=None)

    @root_validator
    @classmethod
    def hash_password(cls, values: dict[str, Any]) -> dict[str, Any]:
        if (values.get("password")) is not None:
            # password is set
            return values

        if (password_clear := values.get("password_clear")) is None:
            raise ValueError("No password to hash")

        if (current_config := Config.load_sync()) is None:
            raise ValueError("Not configured")

        values["password"] = current_config.crypto.crypt_context_sync.hash(
            password_clear)

        return values


class UserRead(UserBase):
    pass