-- 渠道代理与返佣（首版轻量）。可重复执行。
-- 含：t_agent、t_agent_commission_detail；t_customer / t_order 扩展 AgentId。

SET @db := DATABASE();

-- ---------- t_agent ----------
CREATE TABLE IF NOT EXISTS `t_agent` (
  `Id` INT NOT NULL AUTO_INCREMENT,
  `UserId` INT NOT NULL COMMENT 'RBAC user.userid / JWT mapId',
  `AgentCode` VARCHAR(32) NOT NULL COMMENT '登录账号+注册链接编码',
  `AgentName` VARCHAR(64) NOT NULL COMMENT '显示名',
  `Phone` VARCHAR(32) NULL,
  `Email` VARCHAR(128) NULL,
  `Password` VARCHAR(64) NOT NULL COMMENT 'MD5 密码',
  `Status` TINYINT NOT NULL DEFAULT 2 COMMENT '1停用 2启用',
  `BaseType` VARCHAR(32) NOT NULL DEFAULT 'freight' COMMENT 'freight/receivable',
  `CommissionRate` DECIMAL(18,6) NOT NULL DEFAULT 0 COMMENT '返佣比例',
  `SalesProductIds` VARCHAR(512) NULL COMMENT '可选销售产品Id列表 JSON/[1,2] 或逗号；空=不限',
  `Remark` VARCHAR(512) NULL,
  `IsDeleted` TINYINT(1) NOT NULL DEFAULT 0,
  `CreateUserId` INT NOT NULL DEFAULT 0,
  `CreateTime` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `UpdateUserId` INT NOT NULL DEFAULT 0,
  `UpdateTime` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`Id`),
  KEY `ix_agent_code` (`AgentCode`),
  KEY `ix_agent_userid` (`UserId`)
) COMMENT='渠道代理主数据';

-- ---------- t_agent_commission_detail ----------
CREATE TABLE IF NOT EXISTS `t_agent_commission_detail` (
  `Id` INT NOT NULL AUTO_INCREMENT,
  `AgentId` INT NOT NULL,
  `OrderId` INT NOT NULL,
  `CustomerId` INT NOT NULL,
  `SalesProductId` INT NULL,
  `BaseType` VARCHAR(32) NOT NULL,
  `BaseAmount` DECIMAL(18,4) NOT NULL DEFAULT 0,
  `CommissionRate` DECIMAL(18,6) NOT NULL DEFAULT 0,
  `CommissionAmount` DECIMAL(18,4) NOT NULL DEFAULT 0,
  `Status` VARCHAR(16) NOT NULL DEFAULT 'pending' COMMENT 'pending/paid',
  `TriggerOrderStatus` VARCHAR(32) NOT NULL,
  `PaidTime` DATETIME NULL,
  `Remark` VARCHAR(512) NULL,
  `IsDeleted` TINYINT(1) NOT NULL DEFAULT 0,
  `CreateUserId` INT NOT NULL DEFAULT 0,
  `CreateTime` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `UpdateUserId` INT NOT NULL DEFAULT 0,
  `UpdateTime` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`Id`),
  KEY `ix_agent_comm_agent` (`AgentId`),
  KEY `ix_agent_comm_order` (`OrderId`),
  KEY `ix_agent_comm_status` (`Status`)
) COMMENT='代理返佣明细（首版无余额入账）';

-- ---------- t_customer.AgentId ----------
SET @exists := (
  SELECT COUNT(1) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 't_customer' AND COLUMN_NAME = 'AgentId'
);
SET @sql := IF(
  @exists = 0,
  'ALTER TABLE `t_customer` ADD COLUMN `AgentId` INT NULL COMMENT ''所属渠道代理'' AFTER `CommissionBalance`, ADD COLUMN `AgentBindTime` DATETIME NULL COMMENT ''代理绑定时间'' AFTER `AgentId`, ADD KEY `ix_customer_agent` (`AgentId`)',
  'SELECT ''t_customer.AgentId already exists'' AS info'
);
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

-- ---------- t_order.AgentId ----------
SET @exists := (
  SELECT COUNT(1) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 't_order' AND COLUMN_NAME = 'AgentId'
);
SET @sql := IF(
  @exists = 0,
  'ALTER TABLE `t_order` ADD COLUMN `AgentId` INT NULL COMMENT ''下单时代理快照'' AFTER `CustomerId`, ADD KEY `ix_order_agent` (`AgentId`)',
  'SELECT ''t_order.AgentId already exists'' AS info'
);
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;