"""remove special fee modules

Revision ID: 20260512_02
Revises: 20260512_01
Create Date: 2026-05-12 10:15:00.000000

"""

from typing import Sequence, Union

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


revision: str = "20260512_02"
down_revision: Union[str, None] = "20260512_01"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def _table_exists(inspector: sa.Inspector, table_name: str) -> bool:
    return table_name in inspector.get_table_names()


def upgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)

    if _table_exists(inspector, "attachments"):
        op.execute(
            """
            DELETE FROM attachments
            WHERE entity_type IN (
                'finance_special',
                'special_expense',
                'special_expense_voucher',
                'special_expense_invoice',
                'special_expense_other'
            )
            """
        )

    if _table_exists(inspector, "fee_attachments"):
        op.execute(
            """
            DELETE FROM fee_attachments
            WHERE entity_type = 'special_expense'
            """
        )

    if _table_exists(inspector, "audit_logs"):
        op.execute(
            """
            DELETE FROM audit_logs
            WHERE entity_type IN ('finance_special', 'special_expense')
            """
        )

    if _table_exists(inspector, "finance_specials"):
        op.drop_table("finance_specials")

    if _table_exists(inspector, "special_expenses"):
        op.drop_table("special_expenses")


def downgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)

    if not _table_exists(inspector, "special_expenses"):
        op.create_table(
            "special_expenses",
            sa.Column("id", postgresql.UUID(as_uuid=True), nullable=False),
            sa.Column("project_id", postgresql.UUID(as_uuid=True), nullable=False),
            sa.Column("center_id", postgresql.UUID(as_uuid=True), nullable=True),
            sa.Column("category", sa.String(length=50), nullable=False),
            sa.Column("amount", sa.Numeric(12, 2), nullable=False),
            sa.Column("happen_date", sa.Date(), nullable=True),
            sa.Column("description", sa.Text(), nullable=True),
            sa.Column("is_paid", sa.Boolean(), server_default="false", nullable=False),
            sa.Column("paid_date", sa.Date(), nullable=True),
            sa.Column("is_verified", sa.Boolean(), server_default="false", nullable=False),
            sa.Column("verified_date", sa.Date(), nullable=True),
            sa.Column("created_by", postgresql.UUID(as_uuid=True), nullable=True),
            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
            sa.ForeignKeyConstraint(["center_id"], ["sites.id"]),
            sa.ForeignKeyConstraint(["created_by"], ["users.id"]),
            sa.ForeignKeyConstraint(["project_id"], ["studies.id"]),
            sa.PrimaryKeyConstraint("id"),
        )
        op.create_index("ix_special_expenses_project_id", "special_expenses", ["project_id"])
        op.create_index("ix_special_expenses_center_id", "special_expenses", ["center_id"])

    if not _table_exists(inspector, "finance_specials"):
        op.create_table(
            "finance_specials",
            sa.Column("id", postgresql.UUID(as_uuid=True), nullable=False),
            sa.Column("study_id", postgresql.UUID(as_uuid=True), nullable=False),
            sa.Column("site_name", sa.String(length=255), nullable=False),
            sa.Column("fee_type", sa.String(length=50), nullable=False),
            sa.Column("amount", sa.Numeric(12, 2), nullable=False),
            sa.Column("occur_date", sa.Date(), nullable=True),
            sa.Column("staff_name", sa.String(length=100), nullable=True),
            sa.Column("remark", sa.Text(), nullable=True),
            sa.Column("created_by", postgresql.UUID(as_uuid=True), nullable=True),
            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
            sa.ForeignKeyConstraint(["created_by"], ["users.id"]),
            sa.ForeignKeyConstraint(["study_id"], ["studies.id"]),
            sa.PrimaryKeyConstraint("id"),
        )
        op.create_index("ix_finance_specials_study_id", "finance_specials", ["study_id"])