-- 报关两文件流程：回执与真实报关完税文件分离。
-- 仅在已确认目标测试库后执行；所有 DDL 可重复执行，不创建数据库、不写业务数据。
USE baiyue_firstleg;

SET @ddl = IF(NOT EXISTS (
  SELECT 1 FROM information_schema.columns
  WHERE table_schema=DATABASE() AND table_name='fl_customs_container' AND column_name='broker_submitted_at'
), 'ALTER TABLE fl_customs_container ADD COLUMN broker_submitted_by BIGINT UNSIGNED NULL COMMENT ''发送报关行执行的操作人ID'' AFTER completed_at, ADD COLUMN broker_submitted_by_name VARCHAR(64) NULL COMMENT ''发送报关行执行的操作人名称'' AFTER broker_submitted_by, ADD COLUMN broker_submitted_at DATETIME(3) NULL COMMENT ''发送报关行执行时间'' AFTER broker_submitted_by_name', 'SELECT 1');
PREPARE customs_container_broker_submit_stmt FROM @ddl; EXECUTE customs_container_broker_submit_stmt; DEALLOCATE PREPARE customs_container_broker_submit_stmt;

CREATE TABLE IF NOT EXISTS fl_customs_final_document (
  id BIGINT UNSIGNED NOT NULL COMMENT '真实报关完税文件ID',
  source_document_id BIGINT UNSIGNED NOT NULL COMMENT '对应冻结客户资料ID',
  file_id BIGINT UNSIGNED NOT NULL COMMENT 'File服务文件ID',
  file_name VARCHAR(255) NOT NULL COMMENT '真实报关完税文件名称快照',
  file_hash CHAR(64) NOT NULL COMMENT '真实报关完税文件SHA-256摘要',
  content_type VARCHAR(128) NULL COMMENT '真实报关完税文件媒体类型',
  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '真实报关完税文件大小（字节）',
  uploaded_by BIGINT UNSIGNED NOT NULL COMMENT '上传操作人ID',
  uploaded_by_name VARCHAR(64) NULL COMMENT '上传操作人名称快照',
  uploaded_at DATETIME(3) NOT NULL COMMENT '上传时间',
  version INT UNSIGNED NOT NULL DEFAULT 1 COMMENT '完税文件版本号',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '更新时间',
  PRIMARY KEY(id),
  UNIQUE KEY uk_customs_final_source(source_document_id),
  CONSTRAINT fk_customs_final_source FOREIGN KEY(source_document_id) REFERENCES fl_customs_customer_document(id)
) ENGINE=InnoDB COMMENT='真实报关完税文件当前版本';