DROP TABLE IF EXISTS `customer_account`;
CREATE TABLE `customer_account` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `customer_id` BIGINT(20) NOT NULL COMMENT '客户ID',
  `currency` CHAR(3) NOT NULL DEFAULT 'CNY' COMMENT '币种，如 CNY/USD',
  `balance` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '账户余额',
  `frozen_balance` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '冻结余额',
  `total_credit` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '总额度',
  `extra_credit` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '额外额度',
  `used_credit` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '已用额度',
  `tax` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '税金',
  `version` INT(11) NOT NULL DEFAULT 0 COMMENT '乐观锁版本号',
  `create_by` VARCHAR(64) DEFAULT '' COMMENT '创建者',
  `create_time` DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `update_by` VARCHAR(64) DEFAULT '' COMMENT '更新者',
  `update_time` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
  `remark` VARCHAR(500) DEFAULT NULL COMMENT '备注',
  `del_flag` CHAR(1) DEFAULT '0' COMMENT '删除标志（0代表存在 1代表删除）',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_customer_currency` (`customer_id`, `currency`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='客户余额表';


DROP TABLE IF EXISTS `customer_receipt`;
CREATE TABLE `customer_receipt` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `receipt_no` VARCHAR(64) NOT NULL COMMENT '收款单号',
  `customer_id` BIGINT(20) NOT NULL COMMENT '客户ID',
  `account_id` BIGINT(20) DEFAULT NULL COMMENT '客户账户ID',
  `receipt_type` VARCHAR(32) NOT NULL DEFAULT 'PREPAY' COMMENT '收款类型：PREPAY预充值/REPAY还款核销/MIXED混合',
  `amount` DECIMAL(18,2) NOT NULL COMMENT '收款金额',
  `allocated_amount` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '已核销金额',
  `unallocated_amount` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '待核销金额',
  `currency` CHAR(3) NOT NULL DEFAULT 'CNY' COMMENT '币种，如 CNY/USD',
  `pay_method` VARCHAR(32) DEFAULT NULL COMMENT '收款方式：BANK_TRANSFER/ALIPAY/WECHAT/CASH/OTHER',
  `bank_transaction_no` VARCHAR(64) DEFAULT NULL COMMENT '银行流水号/支付平台流水号',
  `received_at` DATETIME NOT NULL COMMENT '收款日期',
  `status` VARCHAR(16) NOT NULL DEFAULT 'PENDING' COMMENT '状态：PENDING待确认/CONFIRMED已确认/CANCELLED已取消',
  `confirmed_at` DATETIME DEFAULT NULL COMMENT '确认时间',
  `confirmed_by` BIGINT(20) DEFAULT NULL COMMENT '确认人',
  `invoice_status` VARCHAR(16) NOT NULL DEFAULT 'NONE' COMMENT '开票状态：NONE未开/PART部分/ALL全部',
  `version` INT(11) NOT NULL DEFAULT 0 COMMENT '乐观锁版本号',
  `create_by` VARCHAR(64) DEFAULT '' COMMENT '创建者',
  `create_time` DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `update_by` VARCHAR(64) DEFAULT '' COMMENT '更新者',
  `update_time` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
  `remark` VARCHAR(500) DEFAULT NULL COMMENT '备注',
  `del_flag` CHAR(1) DEFAULT '0' COMMENT '删除标志（0代表存在 1代表删除）',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_receipt_no` (`receipt_no`),
  KEY `idx_customer_time` (`customer_id`, `received_at`),
  KEY `idx_account` (`account_id`),
  KEY `idx_status` (`status`),
  KEY `idx_bank_transaction_no` (`bank_transaction_no`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='客户收款表';


CREATE TABLE `customer_balance_flow` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `flow_no` VARCHAR(64) NOT NULL COMMENT '流水号',
  `customer_id` BIGINT(20) NOT NULL COMMENT '客户ID',
  `account_id` BIGINT(20) NOT NULL COMMENT '客户账户ID',
  `currency` CHAR(3) NOT NULL DEFAULT 'CNY' COMMENT '币种',
  `biz_type` VARCHAR(32) NOT NULL COMMENT '业务类型：RECEIPT收款/BILL_PAY账单支付/REFUND退款/ADJUST手工调整/FREEZE冻结/UNFREEZE解冻',
  `biz_id` BIGINT(20) DEFAULT NULL COMMENT '关联业务ID，如收款单ID、账单ID',
  `biz_no` VARCHAR(64) DEFAULT NULL COMMENT '关联业务单号',
  `direction` TINYINT(1) NOT NULL COMMENT '变动方向：1增加，-1减少',
  `amount` DECIMAL(18,2) NOT NULL COMMENT '变动金额',
  `before_balance` DECIMAL(18,2) NOT NULL COMMENT '变动前余额',
  `after_balance` DECIMAL(18,2) NOT NULL COMMENT '变动后余额',
  `before_frozen_balance` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '变动前冻结余额',
  `after_frozen_balance` DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '变动后冻结余额',
  `operator_id` BIGINT(20) DEFAULT NULL COMMENT '操作人',
  `create_by` VARCHAR(64) DEFAULT '' COMMENT '创建者',
  `create_time` DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `update_by` VARCHAR(64) DEFAULT '' COMMENT '更新者',
  `update_time` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
  `remark` VARCHAR(500) DEFAULT NULL COMMENT '备注',
  `del_flag` CHAR(1) DEFAULT '0' COMMENT '删除标志（0代表存在 1代表删除）',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_flow_no` (`flow_no`),
  KEY `idx_customer_time` (`customer_id`, `create_time`),
  KEY `idx_account_time` (`account_id`, `create_time`),
  KEY `idx_biz` (`biz_type`, `biz_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='余额流水表';

-- 收款单附件复用客户附件表：attachment_type='3'（其他），biz_id 关联 customer_receipt.id
ALTER TABLE `bms_customer_attachment`
  ADD COLUMN `biz_id` BIGINT(20) DEFAULT NULL COMMENT '关联业务ID（如收款单ID，attachment_type=3时使用）' AFTER `attachment_type`,
  ADD KEY `idx_biz_id` (`biz_id`);