"""Personal API tokens for MCP clients

Revision ID: 0026_api_tokens
Revises: 0025_drop_http_plugin_setting
Create Date: 2026-10-06
"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

revision: str = "0026_api_tokens"
down_revision: Union[str, None] = "0025_drop_http_plugin_setting"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "api_tokens",
        sa.Column("id", sa.Integer, primary_key=True, autoincrement=True),
        sa.Column("user_id", sa.String(36),
                  sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
        sa.Column("name", sa.String(128), nullable=False),
        sa.Column("token_hash", sa.String(64), nullable=False, unique=True),
        sa.Column("prefix", sa.String(16), nullable=False),
        # Reuses the users.role enum type created in 0001.
        sa.Column("role", postgresql.ENUM("admin", "operator", "viewer",
                                          name="userrole", create_type=False),
                  nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("last_used_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("revoked_at", sa.DateTime(timezone=True), nullable=True),
    )
    op.create_index("ix_api_tokens_user_id", "api_tokens", ["user_id"])


def downgrade() -> None:
    op.drop_index("ix_api_tokens_user_id", "api_tokens")
    op.drop_table("api_tokens")