-- 回滚提现资格资料版本与提现审批尝试记录 Schema。
-- 任一本 Change 的业务事实存在时禁止破坏性回滚：资金冻结与资格审批事实无法通过重建 Schema 恢复。

DO $$
BEGIN
    IF EXISTS (SELECT 1 FROM tb_withdrawal_qualification) THEN
        RAISE EXCEPTION '存在提现资格资料版本，禁止回滚提现资格与审批尝试迁移';
    END IF;
    IF EXISTS (SELECT 1 FROM tb_commission_withdrawal_request_attempt) THEN
        RAISE EXCEPTION '存在提现审批尝试记录，禁止回滚提现资格与审批尝试迁移';
    END IF;
    IF EXISTS (
        SELECT 1 FROM tb_commission_withdrawal_request
        WHERE latest_attempt_id <> 0 OR latest_approval_instance_id <> 0
           OR approval_instance_id IS NOT NULL OR anomaly_flag <> 0
    ) THEN
        RAISE EXCEPTION '存在已接入企业微信终审的提现申请，禁止回滚提现资格与审批尝试迁移';
    END IF;
END $$;

ALTER TABLE tb_commission_withdrawal_request DROP CONSTRAINT IF EXISTS chk_commission_withdrawal_request_anomaly;
ALTER TABLE tb_commission_withdrawal_request DROP CONSTRAINT IF EXISTS chk_commission_withdrawal_request_approval_instance;

ALTER TABLE tb_commission_withdrawal_request
    DROP COLUMN IF EXISTS anomaly_reason,
    DROP COLUMN IF EXISTS anomaly_flag,
    DROP COLUMN IF EXISTS approval_instance_id,
    DROP COLUMN IF EXISTS latest_approval_instance_id,
    DROP COLUMN IF EXISTS latest_attempt_id;

DROP INDEX IF EXISTS idx_commission_withdrawal_attempt_unreleased;
DROP INDEX IF EXISTS idx_commission_withdrawal_attempt_request;
DROP INDEX IF EXISTS uk_commission_withdrawal_attempt_instance;
DROP TABLE IF EXISTS tb_commission_withdrawal_request_attempt;

DROP INDEX IF EXISTS uk_withdrawal_qualification_instance;
DROP INDEX IF EXISTS idx_withdrawal_qualification_shop;
DROP INDEX IF EXISTS uk_withdrawal_qualification_valid;
DROP TABLE IF EXISTS tb_withdrawal_qualification;