from __future__ import annotations

from datetime import datetime

from sqlalchemy import DateTime, Index, SmallInteger, String, Text, func, text
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.orm import Mapped, mapped_column

from app.models.db import Base

STATUS_ACTIVE = 1
STATUS_BANNED = 2
BINDING_MODE_SINGLE = "single"
BINDING_MODE_MULTIPLE = "multiple"
BINDING_MODE_ALL = "all"


class TokenBinding(Base):
    __tablename__ = "token_bindings"
    __table_args__ = (
        Index("idx_token_bindings_hash", "token_hash"),
        Index("idx_token_bindings_ip", "bound_ip"),
    )

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    token_hash: Mapped[str] = mapped_column(String(64), unique=True, nullable=False)
    token_display: Mapped[str] = mapped_column(String(20), nullable=False)
    bound_ip: Mapped[str] = mapped_column(Text, nullable=False)
    binding_mode: Mapped[str] = mapped_column(
        String(16),
        nullable=False,
        default=BINDING_MODE_SINGLE,
        server_default=text("'single'"),
    )
    allowed_ips: Mapped[list[str]] = mapped_column(
        JSONB,
        nullable=False,
        default=list,
        server_default=text("'[]'::jsonb"),
    )
    status: Mapped[int] = mapped_column(
        SmallInteger,
        nullable=False,
        default=STATUS_ACTIVE,
        server_default=text("1"),
    )
    first_used_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        server_default=func.now(),
    )
    last_used_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        server_default=func.now(),
    )
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        server_default=func.now(),
    )