318 lines
8.3 KiB
Go
318 lines
8.3 KiB
Go
package chapa
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import (
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"context"
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"database/sql"
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"errors"
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"fmt"
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// "log/slog"
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"strconv"
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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/branch"
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referralservice "github.com/SamuelTariku/FortuneBet-Backend/internal/services/referal"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/services/transaction"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/services/user"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
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"github.com/google/uuid"
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"github.com/shopspring/decimal"
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)
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type Service struct {
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transactionStore transaction.TransactionStore
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walletStore wallet.WalletStore
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userStore user.UserStore
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referralStore referralservice.ReferralStore
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branchStore branch.BranchStore
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chapaClient ChapaClient
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config *config.Config
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// logger *slog.Logger
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store *repository.Store
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}
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func NewService(
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txStore transaction.TransactionStore,
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walletStore wallet.WalletStore,
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userStore user.UserStore,
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referralStore referralservice.ReferralStore,
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branchStore branch.BranchStore,
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chapaClient ChapaClient,
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store *repository.Store,
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) *Service {
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return &Service{
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transactionStore: txStore,
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walletStore: walletStore,
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userStore: userStore,
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referralStore: referralStore,
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branchStore: branchStore,
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chapaClient: chapaClient,
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store: store,
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}
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}
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func (s *Service) HandleChapaTransferWebhook(ctx context.Context, req domain.ChapaWebHookTransfer) error {
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_, tx, err := s.store.BeginTx(ctx)
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if err != nil {
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return err
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}
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defer tx.Rollback(ctx)
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// Use your services normally (they don’t use the transaction, unless you wire `q`)
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referenceID, err := strconv.ParseInt(req.Reference, 10, 64)
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if err != nil {
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return fmt.Errorf("invalid reference ID: %w", err)
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}
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txn, err := s.transactionStore.GetTransactionByID(ctx, referenceID)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return fmt.Errorf("transaction with ID %d not found", referenceID)
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}
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return err
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}
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if txn.Verified {
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return nil
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}
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webhookAmount, _ := decimal.NewFromString(req.Amount)
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storedAmount, _ := decimal.NewFromString(txn.Amount.String())
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if !webhookAmount.Equal(storedAmount) {
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return fmt.Errorf("amount mismatch")
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}
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txn.Verified = true
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if err := s.transactionStore.UpdateTransactionVerified(ctx, txn.ID, txn.Verified, txn.ApprovedBy.Value, txn.ApproverName.Value); err != nil {
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return err
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}
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return tx.Commit(ctx)
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}
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func (s *Service) HandleChapaPaymentWebhook(ctx context.Context, req domain.ChapaWebHookPayment) error {
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_, tx, err := s.store.BeginTx(ctx)
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if err != nil {
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return err
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}
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defer tx.Rollback(ctx)
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if req.Status != "success" {
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return fmt.Errorf("payment status not successful")
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}
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// 1. Parse reference ID
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referenceID, err := strconv.ParseInt(req.TxRef, 10, 64)
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if err != nil {
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return fmt.Errorf("invalid tx_ref: %w", err)
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}
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// 2. Fetch transaction
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txn, err := s.transactionStore.GetTransactionByID(ctx, referenceID)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return fmt.Errorf("transaction with ID %d not found", referenceID)
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}
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return err
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}
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if txn.Verified {
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return nil // already processed
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}
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webhookAmount, _ := strconv.ParseFloat(req.Amount, 32)
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if webhookAmount < float64(txn.Amount) {
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return fmt.Errorf("webhook amount is less than expected")
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}
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// 4. Fetch wallet
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wallet, err := s.walletStore.GetWalletByID(ctx, txn.ID)
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if err != nil {
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return err
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}
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// 5. Update wallet balance
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newBalance := wallet.Balance + txn.Amount
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if err := s.walletStore.UpdateBalance(ctx, wallet.ID, newBalance); err != nil {
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return err
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}
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// 6. Mark transaction as verified
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if err := s.transactionStore.UpdateTransactionVerified(ctx, txn.ID, true, txn.ApprovedBy.Value, txn.ApproverName.Value); err != nil {
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return err
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}
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// 7. Check & Create Referral
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stats, err := s.referralStore.GetReferralStats(ctx, strconv.FormatInt(wallet.UserID, 10))
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if err != nil {
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return err
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}
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if stats == nil {
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if err := s.referralStore.CreateReferral(ctx, wallet.UserID); err != nil {
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return err
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}
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}
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return tx.Commit(ctx)
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}
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func (s *Service) WithdrawUsingChapa(ctx context.Context, userID int64, req domain.ChapaWithdrawRequest) error {
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_, tx, err := s.store.BeginTx(ctx)
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if err != nil {
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return err
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}
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defer tx.Rollback(ctx)
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// Get the requesting user
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user, err := s.userStore.GetUserByID(ctx, userID)
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if err != nil {
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return fmt.Errorf("user not found: %w", err)
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}
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branch, err := s.branchStore.GetBranchByID(ctx, req.BranchID)
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if err != nil {
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return err
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}
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wallets, err := s.walletStore.GetWalletsByUser(ctx, userID)
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if err != nil {
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return err
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}
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var targetWallet *domain.Wallet
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for _, w := range wallets {
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if w.ID == req.WalletID {
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targetWallet = &w
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break
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}
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}
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if targetWallet == nil {
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return fmt.Errorf("no wallet found with the specified ID")
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}
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if !targetWallet.IsWithdraw || !targetWallet.IsActive {
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return fmt.Errorf("wallet not eligible for withdrawal")
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}
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if targetWallet.Balance < domain.Currency(req.Amount) {
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return fmt.Errorf("insufficient balance")
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}
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txID := uuid.New().String()
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payload := domain.ChapaTransferPayload{
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AccountName: req.AccountName,
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AccountNumber: req.AccountNumber,
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Amount: strconv.FormatInt(req.Amount, 10),
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Currency: req.Currency,
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BeneficiaryName: req.BeneficiaryName,
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TxRef: txID,
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Reference: txID,
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BankCode: req.BankCode,
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}
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ok, err := s.chapaClient.IssuePayment(ctx, payload)
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if err != nil || !ok {
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return fmt.Errorf("chapa transfer failed: %v", err)
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}
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// Create transaction using user and wallet info
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_, err = s.transactionStore.CreateTransaction(ctx, domain.CreateTransaction{
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Amount: domain.Currency(req.Amount),
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Type: domain.TransactionType(domain.TRANSACTION_CASHOUT),
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ReferenceNumber: txID,
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AccountName: req.AccountName,
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AccountNumber: req.AccountNumber,
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BankCode: req.BankCode,
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BeneficiaryName: req.BeneficiaryName,
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PaymentOption: domain.PaymentOption(domain.BANK),
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BranchID: req.BranchID,
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BranchName: branch.Name,
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BranchLocation: branch.Location,
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// CashierID: user.ID,
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// CashierName: user.FullName,
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FullName: user.FirstName + " " + user.LastName,
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PhoneNumber: user.PhoneNumber,
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CompanyID: branch.CompanyID,
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})
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if err != nil {
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return fmt.Errorf("failed to create transaction: %w", err)
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}
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newBalance := domain.Currency(req.Amount)
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err = s.walletStore.UpdateBalance(ctx, targetWallet.ID, newBalance)
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if err != nil {
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return fmt.Errorf("failed to update wallet balance: %w", err)
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}
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return tx.Commit(ctx)
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}
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func (s *Service) DepositUsingChapa(ctx context.Context, userID int64, req domain.ChapaDepositRequest) (string, error) {
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_, tx, err := s.store.BeginTx(ctx)
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if err != nil {
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return "", err
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}
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defer tx.Rollback(ctx)
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user, err := s.userStore.GetUserByID(ctx, userID)
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if err != nil {
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return "", err
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}
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branch, err := s.branchStore.GetBranchByID(ctx, req.BranchID)
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if err != nil {
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return "", err
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}
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txID := uuid.New().String()
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_, err = s.transactionStore.CreateTransaction(ctx, domain.CreateTransaction{
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Amount: req.Amount,
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Type: domain.TransactionType(domain.TRANSACTION_DEPOSIT),
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ReferenceNumber: txID,
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BranchID: req.BranchID,
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BranchName: branch.Name,
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BranchLocation: branch.Location,
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FullName: user.FirstName + " " + user.LastName,
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PhoneNumber: user.PhoneNumber,
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CompanyID: branch.CompanyID,
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})
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if err != nil {
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return "", err
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}
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// Fetch user details for Chapa payment
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userInfo, err := s.userStore.GetUserByID(ctx, userID)
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if err != nil {
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return "", err
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}
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// Build Chapa InitPaymentRequest (matches Chapa API)
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paymentReq := domain.InitPaymentRequest{
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Amount: req.Amount,
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Currency: req.Currency,
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Email: userInfo.Email,
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FirstName: userInfo.FirstName,
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LastName: userInfo.LastName,
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TxRef: txID,
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CallbackURL: s.config.CHAPA_CALLBACK_URL,
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ReturnURL: s.config.CHAPA_RETURN_URL,
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}
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// Call Chapa to initialize payment
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paymentURL, err := s.chapaClient.InitPayment(ctx, paymentReq)
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if err != nil {
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return "", err
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}
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// Commit DB transaction
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if err := tx.Commit(ctx); err != nil {
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return "", err
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}
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return paymentURL, nil
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}
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