"""Add Shopify taxonomy registry and per-SKU channel taxonomy assignments.

Revision ID: 0039_add_taxonomy_registry_and_sku_assignments
Revises: 0038_make_sku_mappings_connection_scoped
Create Date: 2026-06-13 18:00:00.000000
"""

from __future__ import annotations

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import JSONB

revision = "0039_add_taxonomy_registry_and_sku_assignments"
down_revision = "0038_make_sku_mappings_connection_scoped"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "shopify_taxonomy_registry",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("taxonomy_id", sa.String(255), nullable=False),
        sa.Column("name", sa.Text(), nullable=False),
        sa.Column("full_name", sa.Text(), nullable=False),
        sa.Column("parent_id", sa.String(255), nullable=True),
        sa.Column("level", sa.Integer(), nullable=False, server_default="0"),
        sa.Column("is_leaf", sa.Boolean(), nullable=False, server_default="false"),
        sa.Column("is_root", sa.Boolean(), nullable=False, server_default="false"),
        sa.Column("search_term", sa.String(128), nullable=True),
        sa.Column("raw_json", JSONB, nullable=True),
        sa.Column("fetched_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
        sa.UniqueConstraint("taxonomy_id", name="uq_shopify_taxonomy_registry_taxonomy_id"),
    )
    op.create_index(
        "ix_shopify_taxonomy_registry_full_name",
        "shopify_taxonomy_registry",
        ["full_name"],
    )

    op.create_table(
        "product_channel_taxonomy_assignment",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("master_sku", sa.String(128), nullable=False),
        sa.Column("channel_code", sa.String(32), nullable=False),
        sa.Column("connection_id", sa.Integer(), nullable=True),
        sa.Column("taxonomy_kind", sa.String(32), nullable=False, server_default="category"),
        sa.Column("remote_id", sa.String(255), nullable=False),
        sa.Column("remote_path", sa.Text(), nullable=True),
        sa.Column("assignment_status", sa.String(32), nullable=False, server_default="active"),
        sa.Column("match_source", sa.String(64), nullable=True),
        sa.Column("sort_order", sa.Integer(), nullable=False, server_default="0"),
        sa.Column("notes", sa.Text(), nullable=True),
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.UniqueConstraint(
            "master_sku",
            "channel_code",
            "connection_id",
            "taxonomy_kind",
            "remote_id",
            name="uq_product_channel_taxonomy_assignment",
        ),
    )
    op.create_index(
        "ix_product_channel_taxonomy_assignment_lookup",
        "product_channel_taxonomy_assignment",
        ["channel_code", "connection_id", "master_sku"],
    )


def downgrade() -> None:
    op.drop_index("ix_product_channel_taxonomy_assignment_lookup", table_name="product_channel_taxonomy_assignment")
    op.drop_table("product_channel_taxonomy_assignment")
    op.drop_index("ix_shopify_taxonomy_registry_full_name", table_name="shopify_taxonomy_registry")
    op.drop_table("shopify_taxonomy_registry")