268 lines
8.9 KiB
Go
268 lines
8.9 KiB
Go
package referralservice
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import (
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"context"
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"crypto/rand"
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"encoding/base32"
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"errors"
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"log/slog"
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"strconv"
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"time"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/config"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/domain"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/repository"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
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)
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type Service struct {
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repo repository.ReferralRepository
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walletSvc wallet.Service
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store *repository.Store
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config *config.Config
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logger *slog.Logger
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}
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func New(repo repository.ReferralRepository, walletSvc wallet.Service, store *repository.Store, cfg *config.Config, logger *slog.Logger) *Service {
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return &Service{
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repo: repo,
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walletSvc: walletSvc,
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store: store,
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config: cfg,
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logger: logger,
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}
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}
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var (
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ErrInvalidReferral = errors.New("invalid or expired referral")
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ErrInvalidReferralSignup = errors.New("referral requires phone signup")
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ErrUserNotFound = errors.New("user not found")
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ErrNoReferralFound = errors.New("no referral found for this user")
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)
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func (s *Service) GenerateReferralCode() (string, error) {
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b := make([]byte, 8)
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if _, err := rand.Read(b); err != nil {
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s.logger.Error("Failed to generate random bytes for referral code", "error", err)
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return "", err
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}
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code := base32.StdEncoding.EncodeToString(b)[:10]
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s.logger.Debug("Generated referral code", "code", code)
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return code, nil
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}
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func (s *Service) CreateReferral(ctx context.Context, userID int64) error {
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s.logger.Info("Creating referral code for user", "userID", userID)
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code, err := s.GenerateReferralCode()
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if err != nil {
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s.logger.Error("Failed to generate referral code", "error", err)
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return err
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}
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if err := s.repo.UpdateUserReferalCode(ctx, domain.UpdateUserReferalCode{
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UserID: userID,
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Code: code,
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}); 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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func (s *Service) ProcessReferral(ctx context.Context, referredPhone, referralCode string) error {
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s.logger.Info("Processing referral", "referredPhone", referredPhone, "referralCode", referralCode)
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referral, err := s.repo.GetReferralByCode(ctx, referralCode)
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if err != nil {
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s.logger.Error("Failed to get referral by code", "referralCode", referralCode, "error", err)
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return err
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}
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if referral == nil || referral.Status != domain.ReferralPending || referral.ExpiresAt.Before(time.Now()) {
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s.logger.Warn("Invalid or expired referral", "referralCode", referralCode, "status", referral.Status)
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return ErrInvalidReferral
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}
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user, err := s.store.GetUserByPhone(ctx, referredPhone)
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if err != nil {
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if errors.Is(err, domain.ErrUserNotFound) {
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s.logger.Warn("User not found for referral", "referredPhone", referredPhone)
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return ErrUserNotFound
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}
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s.logger.Error("Failed to get user by phone", "referredPhone", referredPhone, "error", err)
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return err
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}
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if !user.PhoneVerified {
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s.logger.Warn("Phone not verified for referral", "referredPhone", referredPhone)
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return ErrInvalidReferralSignup
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}
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referral.ReferredID = &referredPhone
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referral.Status = domain.ReferralCompleted
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referral.UpdatedAt = time.Now()
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if err := s.repo.UpdateReferral(ctx, referral); err != nil {
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s.logger.Error("Failed to update referral", "referralCode", referralCode, "error", err)
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return err
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}
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referrerID, err := strconv.ParseInt(referral.ReferrerID, 10, 64)
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if err != nil {
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s.logger.Error("Invalid referrer phone number format", "referrerID", referral.ReferrerID, "error", err)
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return errors.New("invalid referrer phone number format")
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}
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wallets, err := s.walletSvc.GetWalletsByUser(ctx, referrerID)
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if err != nil {
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s.logger.Error("Failed to get wallets for referrer", "referrerID", referrerID, "error", err)
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return err
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}
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if len(wallets) == 0 {
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s.logger.Error("Referrer has no wallet", "referrerID", referrerID)
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return errors.New("referrer has no wallet")
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}
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walletID := wallets[0].ID
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currentBonus := float64(wallets[0].Balance)
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err = s.walletSvc.Add(ctx, walletID, domain.Currency(int64((currentBonus+referral.RewardAmount)*100)))
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if err != nil {
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s.logger.Error("Failed to add referral reward to wallet", "walletID", walletID, "referrerID", referrerID, "error", err)
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return err
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}
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s.logger.Info("Referral processed successfully", "referredPhone", referredPhone, "referralCode", referralCode, "rewardAmount", referral.RewardAmount)
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return nil
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}
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func (s *Service) ProcessDepositBonus(ctx context.Context, userPhone string, amount float64) error {
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s.logger.Info("Processing deposit bonus", "userPhone", userPhone, "amount", amount)
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settings, err := s.repo.GetSettings(ctx)
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if err != nil {
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s.logger.Error("Failed to get referral settings", "error", err)
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return err
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}
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userID, err := strconv.ParseInt(userPhone, 10, 64)
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if err != nil {
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s.logger.Error("Invalid phone number format", "userPhone", userPhone, "error", err)
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return errors.New("invalid phone number format")
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}
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wallets, err := s.walletSvc.GetWalletsByUser(ctx, userID)
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if err != nil {
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s.logger.Error("Failed to get wallets for user", "userID", userID, "error", err)
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return err
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}
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if len(wallets) == 0 {
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s.logger.Error("User has no wallet", "userID", userID)
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return errors.New("user has no wallet")
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}
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walletID := wallets[0].ID
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bonus := amount * (settings.CashbackPercentage / 100)
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currentBonus := float64(wallets[0].Balance)
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err = s.walletSvc.Add(ctx, walletID, domain.Currency(int64((currentBonus+bonus)*100)))
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if err != nil {
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s.logger.Error("Failed to add deposit bonus to wallet", "walletID", walletID, "userID", userID, "bonus", bonus, "error", err)
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return err
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}
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s.logger.Info("Deposit bonus processed successfully", "userPhone", userPhone, "bonus", bonus)
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return nil
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}
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func (s *Service) ProcessBetReferral(ctx context.Context, userPhone string, betAmount float64) error {
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s.logger.Info("Processing bet referral", "userPhone", userPhone, "betAmount", betAmount)
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settings, err := s.repo.GetSettings(ctx)
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if err != nil {
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s.logger.Error("Failed to get referral settings", "error", err)
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return err
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}
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referral, err := s.repo.GetReferralByReferredID(ctx, userPhone)
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if err != nil {
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s.logger.Error("Failed to get referral by referred ID", "userPhone", userPhone, "error", err)
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return err
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}
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if referral == nil || referral.Status != domain.ReferralCompleted {
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s.logger.Warn("No valid referral found", "userPhone", userPhone, "status", referral.Status)
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return ErrNoReferralFound
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}
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referrerID, err := strconv.ParseInt(referral.ReferrerID, 10, 64)
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if err != nil {
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s.logger.Error("Invalid referrer phone number format", "referrerID", referral.ReferrerID, "error", err)
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return errors.New("invalid referrer phone number format")
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}
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wallets, err := s.walletSvc.GetWalletsByUser(ctx, referrerID)
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if err != nil {
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s.logger.Error("Failed to get wallets for referrer", "referrerID", referrerID, "error", err)
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return err
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}
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if len(wallets) == 0 {
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s.logger.Error("Referrer has no wallet", "referrerID", referrerID)
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return errors.New("referrer has no wallet")
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}
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bonusPercentage := settings.BetReferralBonusPercentage
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if bonusPercentage == 0 {
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bonusPercentage = 5.0
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s.logger.Debug("Using default bet referral bonus percentage", "percentage", bonusPercentage)
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}
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bonus := betAmount * (bonusPercentage / 100)
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walletID := wallets[0].ID
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currentBalance := float64(wallets[0].Balance)
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err = s.walletSvc.Add(ctx, walletID, domain.Currency(int64((currentBalance+bonus)*100)))
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if err != nil {
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s.logger.Error("Failed to add bet referral bonus to wallet", "walletID", walletID, "referrerID", referrerID, "bonus", bonus, "error", err)
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return err
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}
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s.logger.Info("Bet referral processed successfully", "userPhone", userPhone, "referrerID", referrerID, "bonus", bonus)
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return nil
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}
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func (s *Service) GetReferralStats(ctx context.Context, userPhone string) (*domain.ReferralStats, error) {
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s.logger.Info("Fetching referral stats", "userPhone", userPhone)
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stats, err := s.repo.GetReferralStats(ctx, userPhone)
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if err != nil {
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s.logger.Error("Failed to get referral stats", "userPhone", userPhone, "error", err)
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return nil, err
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}
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s.logger.Info("Referral stats retrieved successfully", "userPhone", userPhone, "totalReferrals", stats.TotalReferrals)
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return stats, nil
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}
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func (s *Service) UpdateReferralSettings(ctx context.Context, settings *domain.ReferralSettings) error {
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s.logger.Info("Updating referral settings", "settingsID", settings.ID)
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settings.UpdatedAt = time.Now()
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err := s.repo.UpdateSettings(ctx, settings)
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if err != nil {
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s.logger.Error("Failed to update referral settings", "settingsID", settings.ID, "error", err)
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return err
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}
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s.logger.Info("Referral settings updated successfully", "settingsID", settings.ID)
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return nil
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}
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func (s *Service) GetReferralSettings(ctx context.Context) (*domain.ReferralSettings, error) {
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s.logger.Info("Fetching referral settings")
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settings, err := s.repo.GetSettings(ctx)
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if err != nil {
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s.logger.Error("Failed to get referral settings", "error", err)
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return nil, err
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}
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s.logger.Info("Referral settings retrieved successfully", "settingsID", settings.ID)
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return settings, nil
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}
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