"""Phase 8: Push-Benachrichtigungen

Revision ID: 0011
Revises: 0010
Create Date: 2026-08-08
"""
from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "0011"
down_revision: str | None = "0010"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "push_subscription",
        sa.Column("id", sa.String(36), primary_key=True),
        sa.Column("user_id", sa.String(36), nullable=False),
        sa.Column("endpoint", sa.String(500), nullable=False),
        sa.Column("p256dh", sa.String(200), nullable=False),
        sa.Column("auth", sa.String(100), nullable=False),
        sa.Column("label", sa.String(80), nullable=True),
        sa.Column("created_at", sa.DateTime(), nullable=False, server_default=sa.func.now()),
        sa.Column("last_success_at", sa.DateTime(), nullable=True),
        sa.Column("failure_count", sa.Integer(), nullable=False, server_default=sa.text("0")),
        sa.ForeignKeyConstraint(["user_id"], ["user.id"], ondelete="CASCADE"),
        sa.UniqueConstraint("endpoint", name="uq_push_subscription_endpoint"),
        mysql_engine="InnoDB",
        mysql_charset="utf8mb4",
        mysql_collate="utf8mb4_unicode_ci",
    )
    op.create_index("ix_push_subscription_user", "push_subscription", ["user_id"])

    op.create_table(
        "notify_state",
        sa.Column("list_id", sa.String(36), primary_key=True),
        sa.Column("user_id", sa.String(36), primary_key=True),
        sa.Column("last_notified_at", sa.DateTime(), nullable=False,
                  server_default=sa.func.now()),
        sa.ForeignKeyConstraint(["list_id"], ["shopping_list.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["user_id"], ["user.id"], ondelete="CASCADE"),
        mysql_engine="InnoDB",
        mysql_charset="utf8mb4",
        mysql_collate="utf8mb4_unicode_ci",
    )


def downgrade() -> None:
    op.drop_table("notify_state")
    op.drop_index("ix_push_subscription_user", table_name="push_subscription")
    op.drop_table("push_subscription")