"""Create users and sessions tables

Revision ID: 001
Revises:
Create Date: 2026-03-19

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID

revision: str = "001"
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "users",
        sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
        sa.Column("email", sa.String(255), unique=True, nullable=False, index=True),
        sa.Column("username", sa.String(100), unique=True, nullable=False, index=True),
        sa.Column("hashed_password", sa.String(255), nullable=False),
        sa.Column("full_name", sa.String(255), nullable=True),
        sa.Column("role", sa.String(20), nullable=False, server_default="user"),
        sa.Column("is_active", sa.Boolean, nullable=False, server_default=sa.text("true")),
        sa.Column("max_chats", sa.Integer, nullable=False, server_default=sa.text("10")),
        sa.Column("oauth_provider", sa.String(50), nullable=True),
        sa.Column("oauth_provider_id", sa.String(255), nullable=True),
        sa.Column("telegram_chat_id", sa.BigInteger, nullable=True),
        sa.Column("avatar_url", sa.String(500), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
    )

    op.create_table(
        "sessions",
        sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
        sa.Column("user_id", UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("refresh_token_hash", sa.String(255), nullable=False, index=True),
        sa.Column("device_info", sa.String(500), nullable=True),
        sa.Column("ip_address", sa.String(45), nullable=True),
        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
    )


def downgrade() -> None:
    op.drop_table("sessions")
    op.drop_table("users")