This commit is contained in:
331
internal/application/agentrecharge/online_creation.go
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331
internal/application/agentrecharge/online_creation.go
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@@ -0,0 +1,331 @@
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package agentrecharge
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import (
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"context"
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cryptorand "crypto/rand"
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stderrors "errors"
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"fmt"
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"math/big"
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"strings"
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"time"
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"gorm.io/gorm"
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domain "github.com/break/junhong_cmp_fiber/internal/domain/agentrecharge"
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"github.com/break/junhong_cmp_fiber/internal/model"
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"github.com/break/junhong_cmp_fiber/pkg/constants"
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apperrors "github.com/break/junhong_cmp_fiber/pkg/errors"
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"github.com/break/junhong_cmp_fiber/pkg/idempotency"
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)
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const onlineCreationOperation = "agent-recharge.create-online"
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// CreateOnlineCommand 描述从认证上下文构造的在线充值命令。
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type CreateOnlineCommand struct {
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AccountID uint
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UserType int
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CurrentShopID uint
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Amount int64
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PaymentMethod string
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RequestID string
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}
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// CreateOnlineResult 返回在线充值单、支付单及原始付款内容。
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type CreateOnlineResult struct {
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Recharge *model.AgentRechargeRecord
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Payment *model.Payment
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}
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// AvailablePaymentMethodsResult 返回当前可用渠道及在线金额边界。
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type AvailablePaymentMethodsResult struct {
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Methods []string
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MinAmount int64
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MaxAmount int64
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}
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// OnlineCreationService 创建代理在线扫码充值单。
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type OnlineCreationService struct {
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db *gorm.DB
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wechat OnlinePaymentPort
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alipay OnlinePaymentPort
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}
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// NewOnlineCreationService 创建代理在线充值用例并以结构体字段注入两个渠道 Adapter。
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func NewOnlineCreationService(db *gorm.DB, wechat, alipay OnlinePaymentPort) *OnlineCreationService {
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return &OnlineCreationService{db: db, wechat: wechat, alipay: alipay}
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}
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// Execute 以短事务建单，事务外预下单，再条件保存付款内容或关闭失败订单。
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func (s *OnlineCreationService) Execute(ctx context.Context, command CreateOnlineCommand) (*CreateOnlineResult, error) {
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if s == nil || s.db == nil || s.wechat == nil || s.alipay == nil {
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return nil, apperrors.New(apperrors.CodeServiceUnavailable, "代理在线充值能力未配置")
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}
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command.PaymentMethod = strings.TrimSpace(command.PaymentMethod)
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command.RequestID = strings.TrimSpace(command.RequestID)
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if err := domain.ValidateOnlineCreation(command.UserType, command.Amount, command.PaymentMethod); err != nil {
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return nil, err
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}
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if command.AccountID == 0 || command.CurrentShopID == 0 || len(command.RequestID) > 64 ||
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!idempotency.ValidateScope(onlineCreationScope(command.AccountID), command.RequestID) {
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return nil, apperrors.New(apperrors.CodeInvalidParam)
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}
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fingerprint, err := idempotency.Fingerprint(struct {
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Amount int64 `json:"amount"`
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PaymentMethod string `json:"payment_method"`
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}{command.Amount, command.PaymentMethod})
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if err != nil {
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return nil, apperrors.Wrap(apperrors.CodeInternalError, err, "生成在线充值请求指纹失败")
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}
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if replay, found, err := s.loadReplay(ctx, command, fingerprint); err != nil || found {
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return replay, err
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}
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account, shop, wallet, config, adapter, err := s.loadCreationFacts(ctx, command)
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if err != nil {
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return nil, err
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}
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result, err := s.createLocalFacts(ctx, command, fingerprint.Value, account, shop, wallet, config)
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if err != nil {
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if replay, found, replayErr := s.loadReplay(ctx, command, fingerprint); replayErr != nil || found {
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return replay, replayErr
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}
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return nil, err
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}
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paymentResult, err := adapter.PreCreate(ctx, OnlinePaymentRequest{
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PaymentNo: result.Payment.PaymentNo, Description: "代理主钱包充值", Amount: command.Amount,
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ExpireAt: *result.Payment.ExpireAt, Config: config,
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})
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if err != nil {
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if !isUnknownPaymentResult(err) {
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if closeErr := s.closeFailedCreation(ctx, result); closeErr != nil {
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return nil, apperrors.Wrap(apperrors.CodeDatabaseError, closeErr, "支付预下单失败且关闭本地订单失败")
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}
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}
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return nil, err
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}
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if strings.TrimSpace(paymentResult.QRContent) == "" {
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if closeErr := s.closeFailedCreation(ctx, result); closeErr != nil {
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return nil, closeErr
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}
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return nil, apperrors.New(apperrors.CodeServiceUnavailable, "支付渠道未返回付款内容")
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}
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update := s.db.WithContext(ctx).Model(&model.Payment{}).
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Where("id = ? AND status = ? AND qr_content = ''", result.Payment.ID, model.PaymentRecordStatusPending).
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Update("qr_content", paymentResult.QRContent)
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if update.Error != nil {
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return nil, apperrors.Wrap(apperrors.CodeDatabaseError, update.Error, "保存扫码付款内容失败")
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}
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if update.RowsAffected != 1 {
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return nil, apperrors.New(apperrors.CodeConflict, "在线充值付款内容已变化")
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}
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result.Payment.QRContent = paymentResult.QRContent
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return result, nil
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}
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// AvailablePaymentMethods 按固定顺序返回配置完整的扫码支付方式。
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func (s *OnlineCreationService) AvailablePaymentMethods(ctx context.Context, userType int) (AvailablePaymentMethodsResult, error) {
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result := AvailablePaymentMethodsResult{
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Methods: []string{}, MinAmount: constants.AgentOnlineRechargeMinAmount, MaxAmount: constants.AgentRechargeMaxAmount,
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}
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if userType != constants.UserTypeAgent {
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return result, apperrors.New(apperrors.CodeForbidden, "仅代理账号可以查询在线支付方式")
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}
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var config model.WechatConfig
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if err := s.db.WithContext(ctx).Where("is_active = ?", true).First(&config).Error; err != nil {
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if stderrors.Is(err, gorm.ErrRecordNotFound) {
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return result, nil
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}
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return result, apperrors.Wrap(apperrors.CodeDatabaseError, err, "查询生效支付配置失败")
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}
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if s.wechat.Available(&config) {
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result.Methods = append(result.Methods, constants.RechargeMethodWechat)
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}
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if s.alipay.Available(&config) {
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result.Methods = append(result.Methods, constants.RechargeMethodAlipay)
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}
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return result, nil
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}
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func (s *OnlineCreationService) loadCreationFacts(
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ctx context.Context,
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command CreateOnlineCommand,
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) (*model.Account, *model.Shop, *model.AgentWallet, *model.WechatConfig, OnlinePaymentPort, error) {
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var account model.Account
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if err := s.db.WithContext(ctx).Where("id = ? AND user_type = ? AND status = ?", command.AccountID, constants.UserTypeAgent, constants.StatusEnabled).First(&account).Error; err != nil || account.ShopID == nil || *account.ShopID != command.CurrentShopID {
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if err != nil && !stderrors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil, nil, nil, nil, apperrors.Wrap(apperrors.CodeDatabaseError, err, "查询在线充值账号失败")
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}
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return nil, nil, nil, nil, nil, apperrors.New(apperrors.CodeForbidden, "当前代理账号不可为该店铺充值")
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}
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var shop model.Shop
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if err := s.db.WithContext(ctx).Where("id = ? AND status = ?", command.CurrentShopID, constants.StatusEnabled).First(&shop).Error; err != nil {
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if stderrors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil, nil, nil, nil, apperrors.New(apperrors.CodeForbidden, "无权限操作该资源或资源不存在")
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}
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return nil, nil, nil, nil, nil, apperrors.Wrap(apperrors.CodeDatabaseError, err, "查询当前店铺失败")
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}
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var wallet model.AgentWallet
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if err := s.db.WithContext(ctx).Where("shop_id = ? AND wallet_type = ? AND status = ?", command.CurrentShopID, constants.AgentWalletTypeMain, constants.AgentWalletStatusNormal).First(&wallet).Error; err != nil {
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if stderrors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil, nil, nil, nil, apperrors.New(apperrors.CodeWalletNotFound, "当前店铺主钱包不存在或不可用")
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}
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return nil, nil, nil, nil, nil, apperrors.Wrap(apperrors.CodeDatabaseError, err, "查询当前店铺主钱包失败")
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}
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var config model.WechatConfig
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if err := s.db.WithContext(ctx).Where("is_active = ?", true).First(&config).Error; err != nil {
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if stderrors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil, nil, nil, nil, apperrors.New(apperrors.CodeNoPaymentConfig)
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}
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return nil, nil, nil, nil, nil, apperrors.Wrap(apperrors.CodeDatabaseError, err, "查询生效支付配置失败")
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}
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adapter := s.adapter(command.PaymentMethod)
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if adapter == nil || !adapter.Available(&config) {
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return nil, nil, nil, nil, nil, apperrors.New(apperrors.CodeNoPaymentConfig)
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}
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return &account, &shop, &wallet, &config, adapter, nil
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}
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func (s *OnlineCreationService) createLocalFacts(
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ctx context.Context,
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command CreateOnlineCommand,
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fingerprint string,
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account *model.Account,
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shop *model.Shop,
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wallet *model.AgentWallet,
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config *model.WechatConfig,
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) (*CreateOnlineResult, error) {
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rechargeNo, err := newBusinessNo(constants.AgentRechargeOrderPrefix, time.Now().Format("20060102150405"))
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if err != nil {
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return nil, err
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}
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paymentNo, err := newBusinessNo("PAY", fmt.Sprintf("%d", time.Now().UnixMilli()))
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if err != nil {
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return nil, err
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}
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expireMinutes := config.AliPayExpireMinutes
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if expireMinutes <= 0 {
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expireMinutes = model.DefaultAliPayExpireMinutes
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}
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expireAt := time.Now().Add(time.Duration(expireMinutes) * time.Minute)
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channel, requestID := command.PaymentMethod, command.RequestID
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record := &model.AgentRechargeRecord{
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UserID: account.ID, AgentWalletID: wallet.ID, ShopID: shop.ID, RechargeNo: rechargeNo,
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Amount: command.Amount, PaymentMethod: command.PaymentMethod, PaymentChannel: &channel,
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PaymentConfigID: &config.ID, Status: constants.RechargeStatusPending,
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RequestID: &requestID, RequestFingerprint: &fingerprint,
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ShopIDTag: wallet.ShopIDTag, EnterpriseIDTag: wallet.EnterpriseIDTag,
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}
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payment := &model.Payment{
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PaymentNo: paymentNo, OrderType: model.PaymentOrderTypeAgentRecharge,
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PaymentMethod: command.PaymentMethod, MerchantIdentity: paymentMerchantIdentity(command.PaymentMethod, config),
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Amount: command.Amount, Status: model.PaymentRecordStatusPending,
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PaymentConfigID: &config.ID, ExpireAt: &expireAt,
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}
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err = s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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if err := tx.Create(record).Error; err != nil {
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return err
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}
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payment.OrderID = record.ID
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if err := tx.Create(payment).Error; err != nil {
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return err
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}
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return nil
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})
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if err != nil {
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return nil, apperrors.Wrap(apperrors.CodeDatabaseError, err, "创建在线充值本地订单失败")
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}
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return &CreateOnlineResult{Recharge: record, Payment: payment}, nil
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}
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func paymentMerchantIdentity(paymentMethod string, config *model.WechatConfig) string {
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if config == nil {
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return ""
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}
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if paymentMethod == constants.RechargeMethodWechat {
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return config.WxMchID
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}
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if paymentMethod == constants.RechargeMethodAlipay {
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return config.AliAppID
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}
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return ""
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}
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func (s *OnlineCreationService) loadReplay(
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ctx context.Context,
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command CreateOnlineCommand,
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fingerprint idempotency.FingerprintValue,
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) (*CreateOnlineResult, bool, error) {
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var record model.AgentRechargeRecord
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err := s.db.WithContext(ctx).Where("user_id = ? AND request_id = ?", command.AccountID, command.RequestID).First(&record).Error
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if stderrors.Is(err, gorm.ErrRecordNotFound) {
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return nil, false, nil
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}
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if err != nil {
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return nil, false, apperrors.Wrap(apperrors.CodeDatabaseError, err, "读取在线充值幂等记录失败")
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}
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existingFingerprint := ""
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if record.RequestFingerprint != nil {
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existingFingerprint = *record.RequestFingerprint
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}
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if existingFingerprint != fingerprint.Value {
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return nil, true, apperrors.New(apperrors.CodeConflict, "同一请求标识对应的充值内容不一致")
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}
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var payment model.Payment
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if err := s.db.WithContext(ctx).Where("order_id = ? AND order_type = ?", record.ID, model.PaymentOrderTypeAgentRecharge).First(&payment).Error; err != nil {
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return nil, true, apperrors.Wrap(apperrors.CodeDatabaseError, err, "读取在线充值支付单失败")
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}
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if payment.QRContent == "" {
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if record.Status == constants.RechargeStatusClosed || payment.Status == model.PaymentRecordStatusFailed {
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return nil, true, apperrors.New(apperrors.CodeInvalidStatus, "原在线充值请求预下单失败")
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}
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return nil, true, apperrors.New(apperrors.CodeConflict, "在线充值请求正在处理中，请稍后重试")
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}
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return &CreateOnlineResult{Recharge: &record, Payment: &payment}, true, nil
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}
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func (s *OnlineCreationService) closeFailedCreation(ctx context.Context, result *CreateOnlineResult) error {
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if result == nil || result.Recharge == nil || result.Payment == nil || !domain.CanCloseAfterPreCreateFailure(result.Recharge.Status) {
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return nil
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}
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return s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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paymentUpdate := tx.Model(&model.Payment{}).
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Where("id = ? AND status = ?", result.Payment.ID, model.PaymentRecordStatusPending).
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Update("status", model.PaymentRecordStatusFailed)
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if paymentUpdate.Error != nil {
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return apperrors.Wrap(apperrors.CodeDatabaseError, paymentUpdate.Error, "关闭失败支付单失败")
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}
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rechargeUpdate := tx.Model(&model.AgentRechargeRecord{}).
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Where("id = ? AND status = ?", result.Recharge.ID, constants.RechargeStatusPending).
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Update("status", constants.RechargeStatusClosed)
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if rechargeUpdate.Error != nil {
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return apperrors.Wrap(apperrors.CodeDatabaseError, rechargeUpdate.Error, "关闭失败充值单失败")
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}
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return nil
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})
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}
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func (s *OnlineCreationService) adapter(paymentMethod string) OnlinePaymentPort {
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if paymentMethod == constants.RechargeMethodWechat {
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return s.wechat
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}
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if paymentMethod == constants.RechargeMethodAlipay {
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return s.alipay
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}
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return nil
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}
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func onlineCreationScope(accountID uint) idempotency.Scope {
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return idempotency.Scope{Subject: fmt.Sprintf("account:%d", accountID), Operation: onlineCreationOperation}
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}
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func newBusinessNo(prefix, timestamp string) (string, error) {
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random, err := cryptorand.Int(cryptorand.Reader, big.NewInt(1000000))
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if err != nil {
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return "", apperrors.Wrap(apperrors.CodeInternalError, err, "生成业务单号失败")
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}
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return fmt.Sprintf("%s%s%06d", prefix, timestamp, random.Int64()), nil
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}
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func isUnknownPaymentResult(err error) bool {
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var appErr *apperrors.AppError
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return stderrors.As(err, &appErr) && appErr.Code == apperrors.CodeTimeout
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}
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Reference in New Issue
Block a user