"""Phase 4 standard accounting classification taxonomy.

Revision ID: 20260822_accounting_taxonomy_p4
Revises: 20260822_business_profile_p3
"""
from alembic import op
import sqlalchemy as sa

revision = "20260822_accounting_taxonomy_p4"
down_revision = "20260822_business_profile_p3"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "accounting_natures",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("tenant_id", sa.Integer(), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
        sa.Column("code", sa.String(length=80), nullable=False),
        sa.Column("name", sa.String(length=160), nullable=False),
        sa.Column("parent_code", sa.String(length=80), nullable=True),
        sa.Column("classification_group", sa.String(length=40), nullable=False),
        sa.Column("capital_revenue", sa.String(length=20), nullable=False, server_default="revenue"),
        sa.Column("description", sa.Text(), nullable=True),
        sa.Column("sort_order", sa.Integer(), nullable=False, server_default="100"),
        sa.Column("is_posting_nature", sa.Boolean(), nullable=False, server_default=sa.true()),
        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
        sa.Column("is_system_defined", sa.Boolean(), nullable=False, server_default=sa.true()),
        sa.Column("created_by_user_id", sa.Integer(), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
        sa.Column("updated_by_user_id", sa.Integer(), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
        sa.Column("created_at_utc", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
        sa.Column("updated_at_utc", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
        sa.UniqueConstraint("tenant_id", "code", name="uq_accounting_natures_tenant_code"),
    )
    op.create_index("ix_accounting_natures_tenant_id", "accounting_natures", ["tenant_id"])
    op.create_index("ix_accounting_natures_code", "accounting_natures", ["code"])
    op.create_index("ix_accounting_natures_name", "accounting_natures", ["name"])
    op.create_index("ix_accounting_natures_parent_code", "accounting_natures", ["parent_code"])
    op.create_index("ix_accounting_natures_classification_group", "accounting_natures", ["classification_group"])
    op.create_index("ix_accounting_natures_capital_revenue", "accounting_natures", ["capital_revenue"])
    op.create_index("ix_accounting_natures_is_posting_nature", "accounting_natures", ["is_posting_nature"])
    op.create_index("ix_accounting_natures_is_active", "accounting_natures", ["is_active"])


def downgrade() -> None:
    op.drop_index("ix_accounting_natures_is_active", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_is_posting_nature", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_capital_revenue", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_classification_group", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_parent_code", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_name", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_code", table_name="accounting_natures")
    op.drop_index("ix_accounting_natures_tenant_id", table_name="accounting_natures")
    op.drop_table("accounting_natures")