"""Store Accounting Mirror and Tally working paths in Client/FY mirror metadata.

Revision ID: 20260920_accounting_mirror_paths
Revises: 20260918_accounting_mirror_ver
"""
from alembic import op
import sqlalchemy as sa

revision = "20260920_accounting_mirror_paths"
down_revision = "20260918_accounting_mirror_ver"
branch_labels = None
depends_on = None


def upgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)
    columns = {c["name"] for c in inspector.get_columns("accounting_mirror_registry")}

    if "mirror_local_path" not in columns:
        op.add_column(
            "accounting_mirror_registry",
            sa.Column("mirror_local_path", sa.String(length=2000), nullable=False, server_default=""),
        )
    if "tally_data_relative_path" not in columns:
        op.add_column(
            "accounting_mirror_registry",
            sa.Column("tally_data_relative_path", sa.String(length=1000), nullable=False, server_default=""),
        )
    if "tally_data_local_path" not in columns:
        op.add_column(
            "accounting_mirror_registry",
            sa.Column("tally_data_local_path", sa.String(length=2000), nullable=False, server_default=""),
        )


def downgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)
    columns = {c["name"] for c in inspector.get_columns("accounting_mirror_registry")}
    if "tally_data_local_path" in columns:
        op.drop_column("accounting_mirror_registry", "tally_data_local_path")
    if "tally_data_relative_path" in columns:
        op.drop_column("accounting_mirror_registry", "tally_data_relative_path")
    if "mirror_local_path" in columns:
        op.drop_column("accounting_mirror_registry", "mirror_local_path")