"""Add master static field mapping (wide 1:1 master → channel columns).

Revision ID: 0033_add_master_static_field_mapping
Revises: 0032_add_channel_sku_mapping
Create Date: 2026-06-12 20:00:00.000000
"""

from __future__ import annotations

from alembic import op
import sqlalchemy as sa

revision = "0033_add_master_static_field_mapping"
down_revision = "0032_add_channel_sku_mapping"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "master_static_field_mapping",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("master_attribute_code", sa.String(128), nullable=False),
        sa.Column("master_label", sa.Text(), nullable=True),
        sa.Column("field_group", sa.String(32), nullable=False, server_default="core"),
        sa.Column("data_type", sa.String(32), nullable=False, server_default="text"),
        sa.Column("magento_attribute_code", sa.String(255), nullable=True),
        sa.Column("shopify_attribute_code", sa.String(255), nullable=True),
        sa.Column("plytix_attribute_code", sa.String(255), nullable=True),
        sa.Column("sort_order", sa.Integer(), nullable=False, server_default="0"),
        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
        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_attribute_code",
            name="uq_master_static_field_mapping_master_code",
        ),
    )
    op.create_index(
        "ix_master_static_field_mapping_master_code",
        "master_static_field_mapping",
        ["master_attribute_code"],
    )
    op.create_index(
        "ix_master_static_field_mapping_field_group",
        "master_static_field_mapping",
        ["field_group"],
    )

    op.add_column(
        "channel_attribute_alias",
        sa.Column("mapping_scope", sa.String(length=32), nullable=False, server_default="dynamic"),
    )
    op.create_index(
        "ix_channel_attribute_alias_mapping_scope",
        "channel_attribute_alias",
        ["mapping_scope"],
    )


def downgrade() -> None:
    op.drop_index("ix_channel_attribute_alias_mapping_scope", table_name="channel_attribute_alias")
    op.drop_column("channel_attribute_alias", "mapping_scope")
    op.drop_index("ix_master_static_field_mapping_field_group", table_name="master_static_field_mapping")
    op.drop_index("ix_master_static_field_mapping_master_code", table_name="master_static_field_mapping")
    op.drop_table("master_static_field_mapping")