// Example 11: Payment Provider - Pesapal Integration

print("=== Payment Provider & Pesapal Example ===\n");

// Get a context to work with
print("1. Getting context...");
let ctx = get_context(["alice", "bob"]);
print("   ✓ Context created: " + ctx.context_id());

// Create Pesapal payment client (sandbox mode for testing)
print("\n2. Creating Pesapal payment client (sandbox)...");
let payment_client = new_payment_client_pesapal_sandbox(
    1,                                      // Client ID
    "qkio1BGGYAXTu2JOfm7XSXNruoZsrqEW",  // Consumer key
    "osGQ364R49cXKeOYSpaOnT++rHs="       // Consumer secret
);
print("   ✓ Payment client created");

// Create a payment request
print("\n3. Creating payment request...");
let payment_request = new_payment_request(
    "ORDER_" + timestamp(),              // Merchant reference
    2500.00,                              // Amount
    "KES",                                // Currency (Kenyan Shillings)
    "Payment for Premium Subscription",  // Description
    "https://example.com/payment/callback"  // Callback URL
);

// Add customer details
payment_request
    .customer_email("customer@example.com")
    .customer_phone("+254712345678")
    .customer_name("John", "Doe")
    .redirect_url("https://example.com/payment/success");

print("   ✓ Payment request created");
print("   Merchant Reference: ORDER_" + timestamp());
print("   Amount: 2500.00 KES");
print("   Description: Payment for Premium Subscription");

// Create payment link
print("\n4. Creating payment link...");
let payment_response = payment_client.create_payment_link(payment_request);
print("   ✓ Payment link created successfully!");
print("   Payment URL: " + payment_response.get_payment_url());
print("   Order Tracking ID: " + payment_response.get_order_tracking_id());
print("   Merchant Reference: " + payment_response.get_merchant_reference());
print("   Status: " + payment_response.get_status());

// In a real scenario, you would:
// 1. Redirect the user to payment_response.get_payment_url()
// 2. User completes payment on Pesapal
// 3. Pesapal sends callback to your callback URL
// 4. You check payment status using the order tracking ID

// Simulate checking payment status
print("\n5. Checking payment status...");
let order_tracking_id = payment_response.get_order_tracking_id();
let payment_status = payment_client.get_payment_status(order_tracking_id);
print("   ✓ Payment status retrieved");
print("   Order Tracking ID: " + order_tracking_id);
print("   Status: " + payment_status.get_status());
print("   Amount: " + payment_status.get_amount() + " " + payment_status.get_currency());
print("   Payment Method: " + payment_status.get_payment_method());
print("   Transaction ID: " + payment_status.get_transaction_id());

// Create another payment for a different scenario
print("\n6. Creating another payment (smaller amount)...");
let small_payment = new_payment_request(
    "ORDER_SMALL_" + timestamp(),
    150.00,
    "KES",
    "Coffee Purchase",
    "https://example.com/payment/callback"
);

small_payment
    .customer_email("coffee@example.com")
    .customer_phone("+254798765432");

let small_payment_response = payment_client.create_payment_link(small_payment);
print("   ✓ Small payment link created");
print("   Amount: 150.00 KES");
print("   Payment URL: " + small_payment_response.get_payment_url());

// Example with production client (commented out - requires real credentials)
print("\n7. Production client example (not executed)...");
print("   // For production, use:");
print("   // let prod_client = new_payment_client_pesapal(");
print("   //     \"your_production_consumer_key\",");
print("   //     \"your_production_consumer_secret\"");
print("   // );");

print("\n=== Payment Provider & Pesapal Example Complete ===");
print("\nNote: This example makes REAL API calls to Pesapal sandbox.");
print("The credentials used are for testing purposes only.");
print("\nPesapal Payment Flow:");
print("1. Create payment request with amount, currency, and customer details");
print("2. Get payment URL from Pesapal");
print("3. Redirect customer to payment URL");
print("4. Customer completes payment (M-PESA, Card, etc.)");
print("5. Pesapal sends callback to your server");
print("6. Check payment status using order tracking ID");
print("7. Fulfill order if payment is successful");