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junhong_cmp_fiber/internal/model/dto/refund_dto.go
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feat(退款): AUG26-006 补充当前退款套餐已用量与总量
补齐 PRD §2.3.1「退款管理补充字段」:退款列表、详情与导出新增
「当前退款套餐已用量」与「当前退款套餐总量」两个纯展示字段。

- 套餐定位口径与退款套餐失效保持一致,按优先级取唯一一条:
  冻结的 package_usage_id(且属于该订单)→ 订单主套餐 → 订单任一套餐,
  同级按标识升序。不按当前世代或当前生效套餐推断;不按套餐状态过滤,
  使退款后套餐转已失效时仍能回看用量。
- 列表与详情用固定两次查询批量解析(按标识、按订单),查询次数不随条数增长;
  详情复用同一函数。解析不到套餐或记录已物理删除时返回 0,不阻断读取。
- 导出新增两列并改用同一优先级的 LATERAL 取法,不再依赖只按 r.package_usage_id
  的 join——生产库 1296 条退款仅 157 条带该字段,旧取法会让多数行显示零值。
- 不改变退款金额校验、冻结实收、套餐失效、接续、停机与佣金回溯任何规则。

验证:测试库 junhong_cmp_test 实测冻结记录、订单主套餐回退、记录缺失返回 0 三项
解析场景与「4 条退款固定 2 次查询」;并以同批 43 条退款对拍 Go 解析器与导出 SQL,
口径不一致 0 条;导出 43 行列数与表头一致。无迁移、无接口路径变化。
2026-09-14 12:11:55 +08:00

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package dto
// CreateRefundRequest 创建退款申请请求
type CreateRefundRequest struct {
OrderID uint `json:"order_id" validate:"required" required:"true" description:"关联订单ID"`
ActualReceivedAmount *int64 `json:"actual_received_amount" validate:"omitempty" description:"已废弃:实收金额由系统从原成功支付记录或订单实际收款派生并冻结,提交人填写无效"`
Method string `json:"method" validate:"required,oneof=original_route customer_account asset_wallet agent_wallet" required:"true" description:"退款方式 (original_route:原路退款, customer_account:客户收款信息退款, asset_wallet:退回资产钱包, agent_wallet:退回代理主钱包)"`
CustomerAccountInfo string `json:"customer_account_info" validate:"omitempty,max=1000" maxLength:"1000" description:"客户收款信息,仅客户收款信息退款方式必填,不得复用公司线下收款方式字典"`
RequestedRefundAmount int64 `json:"requested_refund_amount" validate:"required,min=1" required:"true" minimum:"1" description:"申请退款金额(分)"`
RefundVoucherKey []string `json:"refund_voucher_key" validate:"omitempty,max=5,dive,max=500" maxItems:"5" description:"退款凭证对象存储file_key列表最多5个仅客户收款信息退款方式必填通过/storage/upload-url上传图片后获得"`
RefundReason string `json:"refund_reason" validate:"omitempty,max=1000" maxLength:"1000" description:"退款原因"`
PackageUsageID *uint `json:"package_usage_id" validate:"omitempty" description:"关联套餐使用记录ID可选"`
}
// RefundIDRequest 退款申请ID路径参数
type RefundIDRequest struct {
ID uint `path:"id" description:"退款申请ID" required:"true"`
}
// RejectRefundRequest 拒绝退款申请请求
type RejectRefundRequest struct {
ID uint `json:"-" params:"id" path:"id" validate:"required" description:"退款申请ID"`
RejectReason string `json:"reject_reason" validate:"required,max=500" required:"true" maxLength:"500" description:"拒绝原因(必填)"`
}
// ResubmitRefundRequest 重新提交退款申请请求
// 退款单被退回后,可修改部分字段后重新提交
type ResubmitRefundRequest struct {
ID uint `json:"-" params:"id" path:"id" validate:"required" description:"退款申请ID"`
ActualReceivedAmount *int64 `json:"actual_received_amount" validate:"omitempty,min=1" minimum:"1" description:"已废弃:实收金额由系统从原成功支付记录或订单实际收款派生并冻结,提交人填写无效"`
Method *string `json:"method" validate:"omitempty,oneof=original_route customer_account asset_wallet agent_wallet" description:"退款方式 (original_route:原路退款, customer_account:客户收款信息退款, asset_wallet:退回资产钱包, agent_wallet:退回代理主钱包),不填沿用原有方式"`
CustomerAccountInfo *string `json:"customer_account_info" validate:"omitempty,max=1000" maxLength:"1000" description:"客户收款信息,仅客户收款信息退款方式必填,不得复用公司线下收款方式字典"`
RequestedRefundAmount *int64 `json:"requested_refund_amount" validate:"omitempty,min=1" minimum:"1" description:"申请退款金额(分)"`
RefundVoucherKey *[]string `json:"refund_voucher_key" validate:"omitempty,max=5,dive,max=500" maxItems:"5" description:"退款凭证对象存储file_key列表重新提交时可替换客户收款信息退款方式必填最多5个"`
RefundReason *string `json:"refund_reason" validate:"omitempty,max=1000" maxLength:"1000" description:"退款原因"`
}
// ApproveRefundRequest 审批通过退款申请请求
type ApproveRefundRequest struct {
ID uint `json:"-" params:"id" path:"id" validate:"required" description:"退款申请ID"`
ApprovedRefundAmount *int64 `json:"approved_refund_amount" validate:"omitempty,min=1" minimum:"1" description:"审批实际退款金额(分),不填则使用申请金额"`
Remark string `json:"remark" validate:"omitempty,max=500" maxLength:"500" description:"审批备注"`
}
// ReturnRefundRequest 退回退款申请请求
type ReturnRefundRequest struct {
ID uint `json:"-" params:"id" path:"id" validate:"required" description:"退款申请ID"`
Remark string `json:"remark" validate:"omitempty,max=500" maxLength:"500" description:"退回备注"`
}
// RefundListRequest 退款申请列表查询请求
type RefundListRequest struct {
Page int `json:"page" query:"page" validate:"omitempty,min=1" minimum:"1" description:"页码默认1"`
PageSize int `json:"page_size" query:"page_size" validate:"omitempty,min=1,max=100" minimum:"1" maximum:"100" description:"每页数量默认20最大100"`
Status *int `json:"status" query:"status" validate:"omitempty,min=1,max=6" minimum:"1" maximum:"6" description:"状态 (1:待审批, 2:已通过, 3:已拒绝, 4:已退回, 5:原路退款处理中, 6:原路退款失败)"`
OrderID *uint `json:"order_id" query:"order_id" validate:"omitempty" description:"关联订单ID"`
ShopID *uint `json:"shop_id" query:"shop_id" validate:"omitempty" description:"店铺ID"`
AssetIdentifier string `json:"asset_identifier" query:"asset_identifier" validate:"omitempty,max=100" maxLength:"100" description:"资产标识精确检索ICCID 或 设备虚拟号,非空时精确匹配)"`
}
// RefundResponse 退款申请详情响应
type RefundResponse struct {
ID uint `json:"id" description:"退款申请ID"`
RefundNo string `json:"refund_no" description:"退款单号"`
OrderID uint `json:"order_id" description:"关联订单ID"`
OrderNo string `json:"order_no" description:"订单号"`
AssetIdentifier string `json:"asset_identifier,omitempty" description:"下单时资产的标识符快照(卡为 ICCID设备优先使用 VirtualNo缺失时使用 IMEI"`
AssetType string `json:"asset_type,omitempty" description:"资产类型 (card:单卡, device:设备)"`
IotCardID *uint `json:"iot_card_id,omitempty" description:"IoT卡ID"`
DeviceID *uint `json:"device_id,omitempty" description:"设备ID"`
PackageUsageID *uint `json:"package_usage_id,omitempty" description:"关联套餐使用记录ID"`
// 当前退款套餐用量:按冻结套餐使用记录 → 订单主套餐 → 订单任一套餐的优先级解析,
// 只用于展示、查询与导出,不参与退款金额校验、套餐失效或佣金回溯。
RefundPackageUsedMB int64 `json:"refund_package_used_mb" description:"当前退款套餐已用量MB真实流量解析不到套餐时为0"`
RefundPackageTotalMB int64 `json:"refund_package_total_mb" description:"当前退款套餐总量MB真实流量解析不到套餐时为0"`
ShopID *uint `json:"shop_id,omitempty" description:"店铺ID"`
ShopName string `json:"shop_name,omitempty" description:"店铺名称"`
ActualReceivedAmount int64 `json:"actual_received_amount" description:"实收金额(分)"`
RequestedRefundAmount int64 `json:"requested_refund_amount" description:"申请退款金额(分)"`
ApprovedRefundAmount *int64 `json:"approved_refund_amount,omitempty" description:"审批实际退款金额(分)"`
RefundVoucherKey []string `json:"refund_voucher_key" description:"退款凭证对象存储file_key列表最多5个"`
RefundReason string `json:"refund_reason" description:"退款原因"`
Status int `json:"status" description:"状态 (1:待审批, 2:已通过, 3:已拒绝, 4:已退回, 5:原路退款处理中, 6:原路退款失败)"`
StatusName string `json:"status_name" description:"状态名称(中文)"`
Method string `json:"method" description:"退款方式 (original_route:原路退款, customer_account:客户收款信息退款, asset_wallet:退回资产钱包, agent_wallet:退回代理主钱包),空表示未接入方式的存量申请"`
MethodName string `json:"method_name" description:"退款方式中文名称"`
FrozenActualReceivedAmount int64 `json:"frozen_actual_received_amount" description:"系统派生并冻结的权威实收金额(分),作为可退金额上限"`
CustomerAccountInfo string `json:"customer_account_info" description:"客户收款信息自由文本快照,仅客户收款信息退款方式有值"`
ChannelRefundStatus int `json:"channel_refund_status" description:"渠道原路退款状态 (0:未发起, 1:处理中, 2:已成功, 3:已失败)0 表示未发起渠道退款或不适用该退款方式"`
ChannelRefundStatusName string `json:"channel_refund_status_name" description:"渠道原路退款状态中文名称"`
ChannelRefundNo string `json:"channel_refund_no" description:"渠道退款流水号,渠道明确成功或失败后回填"`
ChannelRefundRequestNo string `json:"channel_refund_request_no" description:"渠道退款请求号快照,用于幂等与对账"`
ChannelRefundAmount int64 `json:"channel_refund_amount" description:"提交渠道的退款金额快照(分)"`
ChannelRefundedAt string `json:"channel_refunded_at,omitempty" description:"渠道明确退款成功时间"`
FailureReason string `json:"failure_reason" description:"结构化失败分类稳定编码 (channel_rejected:渠道明确拒绝, credential_invalid:渠道凭证失效, insufficient_balance:渠道余额不足, timeout_unknown:超时或结果未知, approval_rejected:企业微信驳回或关闭, revoked_after_approved:企业微信通过后撤销, payment_fact_invalid:本地原支付事实不可用),空表示无失败"`
FailureReasonName string `json:"failure_reason_name" description:"失败分类中文名称"`
FailureMessage string `json:"failure_message" description:"失败安全摘要,供人工排查;不含渠道凭证等敏感内容"`
AnomalyFlag int `json:"anomaly_flag" description:"异常标记 (0:无异常, 1:有异常,需人工处理)"`
AnomalyReason string `json:"anomaly_reason" description:"异常原因说明,无异常时为空"`
LatestAttemptID uint `json:"latest_attempt_id" description:"最新审批尝试记录ID仅用于展示"`
LatestApprovalInstanceID uint `json:"latest_approval_instance_id" description:"最新通用审批实例ID仅用于展示"`
Attempts []RefundAttemptResponse `json:"attempts" description:"审批尝试记录,按提交顺序排列,历史材料不被覆盖;无尝试记录时为空数组"`
ProcessorID *uint `json:"processor_id,omitempty" description:"审批人ID"`
ProcessedAt string `json:"processed_at,omitempty" description:"审批时间"`
RejectReason string `json:"reject_reason,omitempty" description:"拒绝原因"`
Remark string `json:"remark,omitempty" description:"审批备注"`
CommissionDeducted bool `json:"commission_deducted" description:"佣金是否已回扣"`
AssetReset bool `json:"asset_reset" description:"退款后资产处理是否完成"`
SubmitterID uint `json:"submitter_id" description:"提交人账号ID"`
SubmitterName string `json:"submitter_name" description:"提交人账号名称"`
ApprovalInstanceID *uint `json:"approval_instance_id,omitempty" description:"通用审批实例ID"`
ApprovalProvider string `json:"approval_provider,omitempty" description:"审批渠道企业微信为wecom"`
ApprovalStatus *int `json:"approval_status,omitempty" description:"审批状态 (0:提交中, 1:审批中, 2:已通过, 3:已拒绝, 4:已撤销, 5:通过后撤销, 6:已删除, 7:提交失败, 8:提交结果未知)"`
ApprovalStatusName string `json:"approval_status_name,omitempty" description:"审批状态名称(中文)"`
Creator uint `json:"creator" description:"创建人ID"`
Updater uint `json:"updater" description:"更新人ID"`
CreatedAt string `json:"created_at" description:"创建时间"`
UpdatedAt string `json:"updated_at" description:"更新时间"`
}
// RefundListResponse 退款申请列表分页响应
type RefundListResponse struct {
Items []RefundResponse `json:"items" description:"退款申请列表"`
Total int64 `json:"total" description:"总记录数"`
Page int `json:"page" description:"当前页码"`
Size int `json:"size" description:"每页数量"`
}
// RefundAttemptResponse 退款审批尝试响应,材料为本次提交的冻结快照。
type RefundAttemptResponse struct {
ID uint `json:"id" description:"审批尝试记录ID同时是通用审批业务ID"`
AttemptNo int `json:"attempt_no" description:"第几次提交,从 1 递增"`
Method string `json:"method" description:"本次冻结的退款方式 (original_route:原路退款, customer_account:客户收款信息退款, asset_wallet:退回资产钱包, agent_wallet:退回代理主钱包)"`
MethodName string `json:"method_name" description:"本次冻结的退款方式中文名称"`
RefundAmount int64 `json:"refund_amount" description:"本次提交冻结的申请退款金额(分)"`
FrozenActualReceivedAmount int64 `json:"frozen_actual_received_amount" description:"本次提交冻结的权威实收金额(分)"`
RefundReason string `json:"refund_reason" description:"本次提交的退款原因"`
CustomerAccountInfo string `json:"customer_account_info" description:"本次冻结的客户收款信息快照,非客户收款信息退款方式为空"`
CustomerVoucherKey []string `json:"customer_voucher_key" description:"客户收款凭证对象存储file_key列表仅返回对象键引用"`
ChannelRefundRequestNo string `json:"channel_refund_request_no" description:"本次提交使用的渠道退款请求号快照,用于幂等与对账"`
SubmittedByAccountID uint `json:"submitted_by_account_id" description:"本次实际提交账号ID"`
ApprovalInstanceID uint `json:"approval_instance_id" description:"本次尝试关联的通用审批实例ID0 表示未关联"`
ApprovalStatus *int `json:"approval_status,omitempty" description:"通用审批实例状态 (0:提交中, 1:审批中, 2:已通过, 3:已拒绝, 4:已撤销, 5:通过后撤销, 6:已删除, 7:提交失败, 8:提交结果未知)"`
ApprovalStatusName string `json:"approval_status_name" description:"通用审批实例状态中文名称"`
CreatedAt string `json:"created_at" description:"创建时间"`
}