from __future__ import annotations

import random
import string
import uuid

from datetime import datetime
from typing import List, Optional

from sqlalchemy import Boolean, Column, DateTime, Integer, Unicode, desc
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Session, relationship

from .login_history import LoginHistory
from .meta import Base


class Client(Base):
    __tablename__ = "clients"

    id: uuid.UUID = Column("client_id", UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    code: int = Column("code", Integer, unique=True, nullable=False)
    name: str = Column("name", Unicode(255), unique=True, nullable=False)
    enabled: bool = Column("enabled", Boolean, nullable=False)
    otp: Optional[int] = Column("otp", Integer)
    creation_date: datetime = Column("creation_date", DateTime(), nullable=False)

    login_history: List["LoginHistory"] = relationship(
        "LoginHistory", order_by=desc(LoginHistory.date), back_populates="client"
    )

    def __init__(
        self,
        code: int,
        name: str,
        enabled: bool,
        otp: Optional[int],
        creation_date: Optional[datetime] = None,
        id_: Optional[uuid.UUID] = None,
    ) -> None:
        self.code = code
        self.name = name
        self.enabled = enabled
        self.otp = otp
        self.creation_date = datetime.utcnow() if creation_date is None else creation_date
        if id_ is not None:
            self.id = id_

    @classmethod
    def create(cls, db: Session) -> "Client":
        client_code = random.randint(1000, 9999)
        otp = random.randint(1000, 9999)
        name = "".join(random.choice(string.ascii_uppercase + string.digits) for x in range(6))
        client = Client(client_code, name, False, otp)
        db.add(client)
        return client