-- 一期平台客户档案字段增量迁移。可在同一数据库重复执行。
USE baiyue_iam;
SET NAMES utf8mb4;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'contact_wechat'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN contact_wechat VARCHAR(64) NULL COMMENT ''联系微信'' AFTER contact_email');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'sales_owner_name'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN sales_owner_name VARCHAR(64) NULL COMMENT ''销售负责人姓名'' AFTER contact_wechat');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'payment_term_days'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN payment_term_days SMALLINT UNSIGNED NULL COMMENT ''账期天数'' AFTER sales_owner_name');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'enterprise_type'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN enterprise_type VARCHAR(64) NULL COMMENT ''企业类型'' AFTER payment_term_days');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'established_date'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN established_date DATE NULL COMMENT ''成立日期'' AFTER enterprise_type');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'registered_capital'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN registered_capital DECIMAL(18,2) NULL COMMENT ''注册资本'' AFTER established_date');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'registered_capital_currency'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN registered_capital_currency CHAR(3) NULL COMMENT ''注册资本币种 ISO 4217'' AFTER registered_capital');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'registered_address'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN registered_address VARCHAR(500) NULL COMMENT ''注册地址文本'' AFTER registered_capital_currency');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema = DATABASE() AND table_name = 'iam_tenant' AND column_name = 'internal_remark'),
  'SELECT 1', 'ALTER TABLE iam_tenant ADD COLUMN internal_remark VARCHAR(1000) NULL COMMENT ''平台内部备注'' AFTER registered_address');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;