"""Phase 7.2: user notification_preferences and jira_account_id columns.

Revision ID: b032phase7
Revises: b031phase6
"""
from typing import Sequence, Union
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql
from alembic import op

revision: str = "b032phase7"
down_revision: Union[str, None] = "b031phase6"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None

_DEFAULT_PREFS = '{"email_on_test_validated": true, "email_on_campaign_completed": true, "email_on_new_mitre_techniques": false, "in_app_all": true}'

def _column_names(table: str) -> set[str]:
    bind = op.get_bind()
    insp = sa.inspect(bind)
    return {c["name"] for c in insp.get_columns(table)}

def upgrade() -> None:
    user_cols = _column_names("users")
    if "notification_preferences" not in user_cols:
        op.add_column(
            "users",
            sa.Column("notification_preferences", postgresql.JSONB, nullable=True, server_default=_DEFAULT_PREFS),
        )
    if "jira_account_id" not in user_cols:
        op.add_column(
            "users",
            sa.Column("jira_account_id", sa.String(100), nullable=True),
        )

def downgrade() -> None:
    user_cols = _column_names("users")
    if "jira_account_id" in user_cols:
        op.drop_column("users", "jira_account_id")
    if "notification_preferences" in user_cols:
        op.drop_column("users", "notification_preferences")