"""add durable customer notification deliveries

Revision ID: f6b9d2c4801a
Revises: e2a6c8f14b73
Create Date: 2026-08-15 22:20:00
"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = "f6b9d2c4801a"
down_revision: Union[str, Sequence[str], None] = "e2a6c8f14b73"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    with op.batch_alter_table("outbox_events") as batch_op:
        batch_op.add_column(
            sa.Column("last_error_code", sa.String(length=64), nullable=True)
        )
    op.create_table(
        "notification_deliveries",
        sa.Column("id", sa.String(length=128), nullable=False),
        sa.Column("outbox_event_id", sa.String(length=128), nullable=False),
        sa.Column("user_id", sa.String(length=128), nullable=False),
        sa.Column("status", sa.String(length=32), nullable=False),
        sa.Column("attempts", sa.Integer(), nullable=False),
        sa.Column("provider_message_id", sa.String(length=256), nullable=True),
        sa.Column("last_error_code", sa.String(length=64), nullable=True),
        sa.Column("delivered_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("(CURRENT_TIMESTAMP)"),
            nullable=False,
        ),
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("(CURRENT_TIMESTAMP)"),
            nullable=False,
        ),
        sa.CheckConstraint(
            "attempts >= 0",
            name="ck_notification_deliveries_attempts",
        ),
        sa.CheckConstraint(
            "status IN ('pending', 'sending', 'processed', 'failed', 'skipped')",
            name="ck_notification_deliveries_status",
        ),
        sa.ForeignKeyConstraint(
            ["outbox_event_id"],
            ["outbox_events.id"],
            ondelete="CASCADE",
        ),
        sa.ForeignKeyConstraint(
            ["user_id"],
            ["users.id"],
            ondelete="CASCADE",
        ),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint(
            "outbox_event_id",
            "user_id",
            name="uq_notification_deliveries_outbox_user",
        ),
    )
    op.create_index(
        "ix_notification_deliveries_status",
        "notification_deliveries",
        ["status", "updated_at"],
        unique=False,
    )


def downgrade() -> None:
    op.drop_index(
        "ix_notification_deliveries_status",
        table_name="notification_deliveries",
    )
    op.drop_table("notification_deliveries")
    with op.batch_alter_table("outbox_events") as batch_op:
        batch_op.drop_column("last_error_code")