"""Add explicit shared SKU collection membership table.

Revision ID: 0063_add_master_product_collection_membership
Revises: 0062_add_manual_attribute_lock_tables
Create Date: 2026-07-28 21:15:00.000000
"""

from __future__ import annotations

from alembic import op
import sqlalchemy as sa

revision = "0063_add_master_product_collection_membership"
down_revision = "0062_add_manual_attribute_lock_tables"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "master_product_collection_membership",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("master_sku", sa.String(length=128), nullable=False),
        sa.Column("path_slug", sa.String(length=512), nullable=False),
        sa.Column(
            "collection_registry_id",
            sa.Integer(),
            sa.ForeignKey("master_collection_registry.id"),
            nullable=True,
        ),
        sa.Column("collection_name", sa.Text(), nullable=True),
        sa.Column("source_label", sa.String(length=128), nullable=True),
        sa.Column("notes", sa.Text(), nullable=True),
        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
        sa.UniqueConstraint(
            "master_sku",
            "path_slug",
            name="uq_master_product_collection_membership_sku_path",
        ),
    )
    op.create_index(
        "ix_master_product_collection_membership_master_sku",
        "master_product_collection_membership",
        ["master_sku"],
    )
    op.create_index(
        "ix_master_product_collection_membership_path_slug",
        "master_product_collection_membership",
        ["path_slug"],
    )
    op.create_index(
        "ix_master_product_collection_membership_collection_registry_id",
        "master_product_collection_membership",
        ["collection_registry_id"],
    )
    op.create_index(
        "ix_master_product_collection_membership_is_active",
        "master_product_collection_membership",
        ["is_active"],
    )


def downgrade() -> None:
    op.drop_index(
        "ix_master_product_collection_membership_is_active",
        table_name="master_product_collection_membership",
    )
    op.drop_index(
        "ix_master_product_collection_membership_collection_registry_id",
        table_name="master_product_collection_membership",
    )
    op.drop_index(
        "ix_master_product_collection_membership_path_slug",
        table_name="master_product_collection_membership",
    )
    op.drop_index(
        "ix_master_product_collection_membership_master_sku",
        table_name="master_product_collection_membership",
    )
    op.drop_table("master_product_collection_membership")