Tools and Product Features to Troubleshoot Environments

package main
import (
	"fmt"
	"time"
)
// PaymentGateway represents the interface to an external payment gateway.
type PaymentGateway interface {
	Charge(amount float64) (string, error)
}
// PayPalGateway represents the real implementation of the payment gateway interface.
type PayPalGateway struct{}
// Charge simulates charging an amount via PayPal.
func (p *PayPalGateway) Charge(amount float64) (string, error) {
	// Simulate charging the amount via PayPal.
	time.Sleep(2 * time.Second)
	return fmt.Sprintf("Payment of $%.2f processed successfully via PayPal", amount), nil
}
// PaymentProcessor represents the payment processing service.
type PaymentProcessor struct {
	PaymentGateway PaymentGateway
}
// ProcessPayment processes the payment, calculates additional fees, etc.
func (p *PaymentProcessor) ProcessPayment(amount float64) (string, error) {
	// Charge the payment using the payment gateway.
	paymentReceipt, err := p.PaymentGateway.Charge(amount)
	if err != nil {
		return "", err
	}
	// Additional processing logic, e.g., calculating fees, updating records, etc.
	processingFee := amount * 0.03
	totalAmount := amount + processingFee
	// Return a receipt with additional information.
	receipt := fmt.Sprintf("%s\nProcessing Fee: $%.2f\nTotal Amount: $%.2f", paymentReceipt, processingFee, totalAmount)
	return receipt, nil
}
// MockPaymentGateway represents a mock implementation of the payment gateway for testing.
type MockPaymentGateway struct{}
// Charge simulates charging an amount via a mocked payment gateway.
func (m *MockPaymentGateway) Charge(amount float64) (string, error) {
	// Simulate charging the amount via the mocked payment gateway.
	return fmt.Sprintf("Mock Payment of $%.2f processed successfully", amount), nil
}
func main() {
	// Testing scenario with mock
	mockPaymentGateway := &MockPaymentGateway{}
	mockPaymentProcessor := PaymentProcessor{PaymentGateway: mockPaymentGateway}
	mockAmount := 150.0
	mockReceipt, _ := mockPaymentProcessor.ProcessPayment(mockAmount)
	fmt.Println("\nTesting Scenario with Mock:")
	fmt.Println(mockReceipt)
}