七月迭代短暂完结,还有很多后端的关键东西没有弄,这是一版赶时间做的东西

internal/application/agentrecharge/approval_decision.go

@@ -0,0 +1,119 @@
+package agentrecharge
+
+import (
+	"context"
+	"strings"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+
+	approvalapp "github.com/break/junhong_cmp_fiber/internal/application/approval"
+	walletapp "github.com/break/junhong_cmp_fiber/internal/application/wallet"
+	"github.com/break/junhong_cmp_fiber/internal/model"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+)
+
+// ApprovalDecisionHandler 将渠道无关审批终态应用到员工线下代充值业务。
+type ApprovalDecisionHandler struct {
+	db      *gorm.DB
+	posting *walletapp.PostingService
+}
+
+// NewApprovalDecisionHandler 创建员工线下代充值审批终态消费者。
+func NewApprovalDecisionHandler(db *gorm.DB, posting *walletapp.PostingService) *ApprovalDecisionHandler {
+	return &ApprovalDecisionHandler{db: db, posting: posting}
+}
+
+// Handle 幂等处理标准审批终态；只有 approved 首次入账，其他终态不修改钱包。
+func (h *ApprovalDecisionHandler) Handle(ctx context.Context, event approvalapp.TerminalDecisionEvent) error {
+	if h == nil || h.db == nil || h.posting == nil {
+		return errors.New(errors.CodeInternalError, "员工线下代充值审批终态能力未配置")
+	}
+	if event.BusinessType != constants.ApprovalBusinessTypeOfflineRecharge || event.BusinessID == 0 || event.InstanceID == 0 {
+		return errors.New(errors.CodeInvalidParam, "员工线下代充值审批终态参数无效")
+	}
+	return h.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		var record model.AgentRechargeRecord
+		if err := tx.WithContext(ctx).Clauses(clause.Locking{Strength: "UPDATE"}).
+			Where("id = ? AND payment_method = ?", event.BusinessID, constants.RechargeMethodOffline).
+			First(&record).Error; err != nil {
+			if err == gorm.ErrRecordNotFound {
+				return errors.New(errors.CodeForbidden, "无权限操作该资源或资源不存在")
+			}
+			return errors.Wrap(errors.CodeDatabaseError, err, "锁定员工线下代充值申请失败")
+		}
+		if record.ApprovalInstanceID == nil || *record.ApprovalInstanceID != event.InstanceID {
+			return errors.New(errors.CodeConflict, "线下代充值申请关联的审批实例不一致")
+		}
+		switch event.Decision {
+		case constants.ApprovalDecisionApproved:
+			return h.applyApproved(ctx, tx, &record, event)
+		case constants.ApprovalDecisionRejected:
+			return closeOfflineRecharge(ctx, tx, &record, constants.RechargeStatusRejected, "企业微信审批已拒绝")
+		case constants.ApprovalDecisionCancelled:
+			return closeOfflineRecharge(ctx, tx, &record, constants.RechargeStatusClosed, "企业微信审批已撤销")
+		case constants.ApprovalDecisionDeleted:
+			return closeOfflineRecharge(ctx, tx, &record, constants.RechargeStatusClosed, "企业微信审批已删除")
+		case constants.ApprovalDecisionRevokedAfterApproved:
+			return nil
+		default:
+			return errors.New(errors.CodeInvalidParam, "不支持的线下代充值审批终态")
+		}
+	})
+}
+
+func (h *ApprovalDecisionHandler) applyApproved(
+	ctx context.Context,
+	tx *gorm.DB,
+	record *model.AgentRechargeRecord,
+	event approvalapp.TerminalDecisionEvent,
+) error {
+	if record.Status != constants.RechargeStatusPending && record.Status != constants.RechargeStatusCompleted {
+		return errors.New(errors.CodeInvalidStatus, "线下代充值申请状态不允许审批入账")
+	}
+	if record.Status == constants.RechargeStatusPending {
+		result := tx.WithContext(ctx).Model(&model.AgentRechargeRecord{}).
+			Where("id = ? AND status = ?", record.ID, constants.RechargeStatusPending).
+			Updates(map[string]any{
+				"status": constants.RechargeStatusCompleted, "paid_at": event.OccurredAt,
+				"completed_at": event.OccurredAt, "updated_at": event.OccurredAt,
+			})
+		if result.Error != nil {
+			return errors.Wrap(errors.CodeDatabaseError, result.Error, "完成线下代充值审批申请失败")
+		}
+		if result.RowsAffected != 1 {
+			return errors.New(errors.CodeConflict, "线下代充值申请状态已变化")
+		}
+	}
+	_, err := h.posting.PostInTx(ctx, tx, walletapp.PostingCommand{
+		ShopID: record.ShopID, WalletID: record.AgentWalletID, Amount: record.Amount,
+		ReferenceType: constants.ReferenceTypeTopup, ReferenceID: record.ID,
+		TransactionType: constants.AgentTransactionTypeRecharge,
+		UserID:          event.SubmitterAccountID, Creator: event.SubmitterAccountID,
+		Remark: "企业微信审批通过线下充值", CorrelationID: event.CorrelationID,
+	})
+	return err
+}
+
+func closeOfflineRecharge(ctx context.Context, tx *gorm.DB, record *model.AgentRechargeRecord, status int, reason string) error {
+	if record.Status == status {
+		return nil
+	}
+	if record.Status != constants.RechargeStatusPending {
+		return errors.New(errors.CodeInvalidStatus, "线下代充值申请状态不允许结束审批")
+	}
+	reason = strings.TrimSpace(reason)
+	result := tx.WithContext(ctx).Model(&model.AgentRechargeRecord{}).
+		Where("id = ? AND status = ?", record.ID, constants.RechargeStatusPending).
+		Updates(map[string]any{"status": status, "rejection_reason": reason})
+	if result.Error != nil {
+		return errors.Wrap(errors.CodeDatabaseError, result.Error, "结束线下代充值审批申请失败")
+	}
+	if result.RowsAffected != 1 {
+		return errors.New(errors.CodeConflict, "线下代充值申请状态已变化")
+	}
+	return nil
+}
+
+var _ approvalapp.BusinessDecisionHandler = (*ApprovalDecisionHandler)(nil)