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/offline_creation.go

@@ -0,0 +1,188 @@
+// Package agentrecharge 收口员工线下代充值申请和审批终态业务用例。
+package agentrecharge
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/bytedance/sonic"
+	"gorm.io/gorm"
+
+	approvalapp "github.com/break/junhong_cmp_fiber/internal/application/approval"
+	"github.com/break/junhong_cmp_fiber/internal/model"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+)
+
+// CreateOfflineCommand 描述员工创建线下代充值审批申请的稳定输入。
+type CreateOfflineCommand struct {
+	SubmitterAccountID uint
+	SubmitterUserType  int
+	ShopID             uint
+	RechargeNo         string
+	Amount             int64
+	PaymentVoucherKeys []string
+	Remark             string
+}
+
+// CreateOfflineResult 返回已原子保存的业务申请和初始审批状态。
+type CreateOfflineResult struct {
+	Record         *model.AgentRechargeRecord
+	ShopName       string
+	SubmitterName  string
+	ApprovalStatus int
+}
+
+// OfflineCreationService 创建员工线下代充值申请及唯一通用审批实例。
+type OfflineCreationService struct {
+	db       *gorm.DB
+	approval approvalapp.Port
+}
+
+// NewOfflineCreationService 创建员工线下代充值申请用例。
+func NewOfflineCreationService(db *gorm.DB, approval approvalapp.Port) *OfflineCreationService {
+	return &OfflineCreationService{db: db, approval: approval}
+}
+
+// Execute 在业务写入前校验审批渠道，并在同一事务保存充值申请、审批实例和提交 Outbox。
+func (s *OfflineCreationService) Execute(ctx context.Context, command CreateOfflineCommand) (*CreateOfflineResult, error) {
+	if s == nil || s.db == nil || s.approval == nil {
+		return nil, errors.New(errors.CodeServiceUnavailable, "员工线下代充值审批能力未配置")
+	}
+	if err := validateCreateOfflineCommand(command); err != nil {
+		return nil, err
+	}
+	account, shop, wallet, err := s.loadCreationFacts(ctx, command)
+	if err != nil {
+		return nil, err
+	}
+	preparation, err := s.approval.Prepare(ctx, approvalapp.PrepareRequest{
+		BusinessType: constants.ApprovalBusinessTypeOfflineRecharge, SubmitterAccountID: command.SubmitterAccountID,
+		CorrelationID: strings.TrimSpace(command.RechargeNo),
+	})
+	if err != nil {
+		return nil, err
+	}
+	submitterSnapshot, requestSnapshot, err := offlineApprovalSnapshots(command, account.Username, shop.ShopName)
+	if err != nil {
+		return nil, err
+	}
+	paymentChannel := constants.RechargeMethodOffline
+	record := &model.AgentRechargeRecord{
+		UserID: command.SubmitterAccountID, AgentWalletID: wallet.ID, ShopID: command.ShopID,
+		RechargeNo: strings.TrimSpace(command.RechargeNo), Amount: command.Amount,
+		PaymentMethod: constants.RechargeMethodOffline, PaymentChannel: &paymentChannel,
+		PaymentVoucherKey: model.StringJSONBArray(command.PaymentVoucherKeys), Remark: strings.TrimSpace(command.Remark),
+		Status: constants.RechargeStatusPending, ShopIDTag: wallet.ShopIDTag, EnterpriseIDTag: wallet.EnterpriseIDTag,
+	}
+	var approvalStatus int
+	err = s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.WithContext(ctx).Create(record).Error; err != nil {
+			return errors.Wrap(errors.CodeDatabaseError, err, "创建员工线下代充值申请失败")
+		}
+		reference, err := s.approval.CreateInTx(ctx, tx, approvalapp.CreateRequest{
+			Preparation: preparation, BusinessType: constants.ApprovalBusinessTypeOfflineRecharge,
+			BusinessID: record.ID, SubmitterAccountID: command.SubmitterAccountID,
+			SubmitterSnapshot: submitterSnapshot, RequestSnapshot: requestSnapshot,
+			CorrelationID: record.RechargeNo,
+		})
+		if err != nil {
+			return err
+		}
+		result := tx.WithContext(ctx).Model(&model.AgentRechargeRecord{}).
+			Where("id = ? AND approval_instance_id IS NULL", record.ID).
+			Update("approval_instance_id", reference.InstanceID)
+		if result.Error != nil {
+			return errors.Wrap(errors.CodeDatabaseError, result.Error, "关联员工线下代充值审批实例失败")
+		}
+		if result.RowsAffected != 1 {
+			return errors.New(errors.CodeConflict, "员工线下代充值审批实例关联已变化")
+		}
+		record.ApprovalInstanceID = &reference.InstanceID
+		approvalStatus = reference.Status
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &CreateOfflineResult{
+		Record: record, ShopName: shop.ShopName, SubmitterName: account.Username, ApprovalStatus: approvalStatus,
+	}, nil
+}
+
+func validateCreateOfflineCommand(command CreateOfflineCommand) error {
+	if command.SubmitterUserType != constants.UserTypePlatform && command.SubmitterUserType != constants.UserTypeSuperAdmin {
+		return errors.New(errors.CodeForbidden, "线下充值仅平台管理员可操作")
+	}
+	if command.SubmitterAccountID == 0 || command.ShopID == 0 || strings.TrimSpace(command.RechargeNo) == "" {
+		return errors.New(errors.CodeInvalidParam)
+	}
+	if command.Amount < constants.AgentRechargeMinAmount || command.Amount > constants.AgentRechargeMaxAmount {
+		return errors.New(errors.CodeInvalidParam, "充值金额超出允许范围")
+	}
+	if len(command.PaymentVoucherKeys) == 0 || len(command.PaymentVoucherKeys) > 5 {
+		return errors.New(errors.CodeInvalidParam, "线下充值必须上传 1 至 5 个支付凭证")
+	}
+	for _, key := range command.PaymentVoucherKeys {
+		if strings.TrimSpace(key) == "" {
+			return errors.New(errors.CodeInvalidParam, "线下充值支付凭证不能为空")
+		}
+	}
+	return nil
+}
+
+func (s *OfflineCreationService) loadCreationFacts(
+	ctx context.Context,
+	command CreateOfflineCommand,
+) (*model.Account, *model.Shop, *model.AgentWallet, error) {
+	var account model.Account
+	if err := s.db.WithContext(ctx).Where("id = ? AND status = ?", command.SubmitterAccountID, constants.StatusEnabled).First(&account).Error; err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil, nil, errors.New(errors.CodeForbidden, "提交人账号不可用")
+		}
+		return nil, nil, nil, errors.Wrap(errors.CodeDatabaseError, err, "查询线下代充值提交人失败")
+	}
+	var shop model.Shop
+	if err := s.db.WithContext(ctx).Where("id = ?", command.ShopID).First(&shop).Error; err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil, nil, errors.New(errors.CodeNotFound, "目标店铺不存在")
+		}
+		return nil, nil, nil, errors.Wrap(errors.CodeDatabaseError, err, "查询目标店铺失败")
+	}
+	var wallet model.AgentWallet
+	if err := s.db.WithContext(ctx).
+		Where("shop_id = ? AND wallet_type = ? AND status = ?", command.ShopID, constants.AgentWalletTypeMain, constants.AgentWalletStatusNormal).
+		First(&wallet).Error; err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil, nil, errors.New(errors.CodeWalletNotFound, "目标店铺主钱包不存在或不可用")
+		}
+		return nil, nil, nil, errors.Wrap(errors.CodeDatabaseError, err, "查询目标店铺主钱包失败")
+	}
+	return &account, &shop, &wallet, nil
+}
+
+func offlineApprovalSnapshots(command CreateOfflineCommand, submitterName, shopName string) ([]byte, []byte, error) {
+	submitterSnapshot, err := sonic.Marshal(map[string]any{
+		"account_id": command.SubmitterAccountID, "account_name": submitterName,
+		"user_type": command.SubmitterUserType,
+	})
+	if err != nil {
+		return nil, nil, errors.Wrap(errors.CodeInternalError, err, "编码线下代充值提交人快照失败")
+	}
+	requestSnapshot, err := sonic.Marshal(map[string]any{
+		constants.ApprovalFieldRechargeNo:        strings.TrimSpace(command.RechargeNo),
+		constants.ApprovalFieldShopID:            command.ShopID,
+		constants.ApprovalFieldShopName:          shopName,
+		constants.ApprovalFieldAmount:            fmt.Sprintf("%d.%02d", command.Amount/100, command.Amount%100),
+		constants.ApprovalFieldAmountCent:        command.Amount,
+		constants.ApprovalFieldPaymentVoucherKey: command.PaymentVoucherKeys,
+		constants.ApprovalFieldRemark:            strings.TrimSpace(command.Remark),
+		constants.ApprovalFieldSubmitterID:       command.SubmitterAccountID,
+		constants.ApprovalFieldSubmitterName:     submitterName,
+	})
+	if err != nil {
+		return nil, nil, errors.Wrap(errors.CodeInternalError, err, "编码线下代充值审批业务快照失败")
+	}
+	return submitterSnapshot, requestSnapshot, nil
+}