-- 优惠券发放体系：未解锁状态、到期提醒标记、新人/裂变券模板（可重复执行）
SET @db := DATABASE();

SET @col := (
  SELECT COUNT(1)
  FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db
    AND TABLE_NAME = 't_coupon_instance'
    AND COLUMN_NAME = 'ExpiryNoticeSent'
);
SET @sql := IF(
  @col = 0,
  'ALTER TABLE `t_coupon_instance`
    ADD COLUMN `ExpiryNoticeSent` TINYINT(1) NOT NULL DEFAULT 0 COMMENT ''到期前3天已提醒'' AFTER `LockExpireTime`',
  'SELECT ''ExpiryNoticeSent already exists'' AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 新人首单券 15 元，领取后 15 天
INSERT INTO `t_coupon_template` (
  `TemplateCode`, `TemplateName`, `CouponType`, `FaceValue`, `DiscountRate`, `MaxDiscountAmount`,
  `MinOrderAmount`, `TotalQuantity`, `IssuedQuantity`, `PerCustomerLimit`,
  `ValidType`, `ValidStartTime`, `ValidEndTime`, `ValidDaysAfterReceive`,
  `ApplyScopeJson`, `GrantChannel`, `Status`, `Remark`,
  `IsDeleted`, `CreateUserId`, `CreateTime`, `UpdateUserId`, `UpdateTime`
)
SELECT
  'NEWCOMER_FIRST', '新人首单券', 'fixed_off', 15.00, NULL, NULL,
  0, 0, 0, 1,
  2, NULL, NULL, 15,
  NULL, 'newcomer', 1, '注册自动下发，仅抵基础运费，退款不退回',
  0, 0, NOW(), 0, NOW()
WHERE NOT EXISTS (
  SELECT 1 FROM `t_coupon_template` x WHERE x.`IsDeleted` = 0 AND x.`TemplateCode` = 'NEWCOMER_FIRST'
);

-- 新人第二单券 15 元，满 150 基础运费，解锁后 30 天
INSERT INTO `t_coupon_template` (
  `TemplateCode`, `TemplateName`, `CouponType`, `FaceValue`, `DiscountRate`, `MaxDiscountAmount`,
  `MinOrderAmount`, `TotalQuantity`, `IssuedQuantity`, `PerCustomerLimit`,
  `ValidType`, `ValidStartTime`, `ValidEndTime`, `ValidDaysAfterReceive`,
  `ApplyScopeJson`, `GrantChannel`, `Status`, `Remark`,
  `IsDeleted`, `CreateUserId`, `CreateTime`, `UpdateUserId`, `UpdateTime`
)
SELECT
  'NEWCOMER_SECOND', '新人第二单券', 'fixed_off', 15.00, NULL, NULL,
  150, 0, 0, 1,
  3, NULL, NULL, 30,
  NULL, 'newcomer', 1, '首单派送成功后解锁，实付基础运费满 150',
  0, 0, NOW(), 0, NOW()
WHERE NOT EXISTS (
  SELECT 1 FROM `t_coupon_template` x WHERE x.`IsDeleted` = 0 AND x.`TemplateCode` = 'NEWCOMER_SECOND'
);

-- 新人备货券 20 元，满 200，注册后 60 天
INSERT INTO `t_coupon_template` (
  `TemplateCode`, `TemplateName`, `CouponType`, `FaceValue`, `DiscountRate`, `MaxDiscountAmount`,
  `MinOrderAmount`, `TotalQuantity`, `IssuedQuantity`, `PerCustomerLimit`,
  `ValidType`, `ValidStartTime`, `ValidEndTime`, `ValidDaysAfterReceive`,
  `ApplyScopeJson`, `GrantChannel`, `Status`, `Remark`,
  `IsDeleted`, `CreateUserId`, `CreateTime`, `UpdateUserId`, `UpdateTime`
)
SELECT
  'NEWCOMER_STOCK', '新人备货券', 'fixed_off', 20.00, NULL, NULL,
  200, 0, 0, 1,
  2, NULL, NULL, 60,
  NULL, 'newcomer', 1, '注册自动下发，实付基础运费满 200',
  0, 0, NOW(), 0, NOW()
WHERE NOT EXISTS (
  SELECT 1 FROM `t_coupon_template` x WHERE x.`IsDeleted` = 0 AND x.`TemplateCode` = 'NEWCOMER_STOCK'
);

-- 裂变：老客 20 元无门槛
INSERT INTO `t_coupon_template` (
  `TemplateCode`, `TemplateName`, `CouponType`, `FaceValue`, `DiscountRate`, `MaxDiscountAmount`,
  `MinOrderAmount`, `TotalQuantity`, `IssuedQuantity`, `PerCustomerLimit`,
  `ValidType`, `ValidStartTime`, `ValidEndTime`, `ValidDaysAfterReceive`,
  `ApplyScopeJson`, `GrantChannel`, `Status`, `Remark`,
  `IsDeleted`, `CreateUserId`, `CreateTime`, `UpdateUserId`, `UpdateTime`
)
SELECT
  'REFERRAL_INVITER', '邀请有礼券', 'fixed_off', 20.00, NULL, NULL,
  0, 0, 0, 1,
  2, NULL, NULL, 30,
  NULL, 'referral', 1, '被邀请人首单派送成功后发给邀请人',
  0, 0, NOW(), 0, NOW()
WHERE NOT EXISTS (
  SELECT 1 FROM `t_coupon_template` x WHERE x.`IsDeleted` = 0 AND x.`TemplateCode` = 'REFERRAL_INVITER'
);

-- 裂变：新客额外 5 元
INSERT INTO `t_coupon_template` (
  `TemplateCode`, `TemplateName`, `CouponType`, `FaceValue`, `DiscountRate`, `MaxDiscountAmount`,
  `MinOrderAmount`, `TotalQuantity`, `IssuedQuantity`, `PerCustomerLimit`,
  `ValidType`, `ValidStartTime`, `ValidEndTime`, `ValidDaysAfterReceive`,
  `ApplyScopeJson`, `GrantChannel`, `Status`, `Remark`,
  `IsDeleted`, `CreateUserId`, `CreateTime`, `UpdateUserId`, `UpdateTime`
)
SELECT
  'REFERRAL_INVITEE', '邀请注册加赠券', 'fixed_off', 5.00, NULL, NULL,
  0, 0, 0, 1,
  2, NULL, NULL, 30,
  NULL, 'referral', 1, '被邀请人注册即发 5 元券',
  0, 0, NOW(), 0, NOW()
WHERE NOT EXISTS (
  SELECT 1 FROM `t_coupon_template` x WHERE x.`IsDeleted` = 0 AND x.`TemplateCode` = 'REFERRAL_INVITEE'
);