use std::io::{self, Write};
fn main() {
println!("🔧 3DS TESTING SETUP");
println!("===================");
println!();
println!(
"To properly test 3DS authentication, you need a webhook URL to capture return calls."
);
println!();
println!("📋 SETUP STEPS:");
println!("1. Go to https://webhook.site");
println!("2. Copy your unique webhook URL");
println!("3. Update the return_url in examples/3ds_payment_demo.rs");
println!();
println!("💡 EXAMPLE:");
println!(" return_url: Some(\"https://webhook.site/abc123-def456\".to_string()),");
println!();
println!("🔍 3DS TEST CARDS:");
println!(" - 4000000000003220 (Visa - 3DS Authentication Required)");
println!(" - 4000000000009995 (Visa - 3DS with Insufficient Funds)");
println!(" - 4000000000000002 (Visa - 3DS Declined)");
println!(" - 4000000000009987 (Visa - 3DS Lost Card)");
println!(" - 4000000000009979 (Visa - 3DS Stolen Card)");
println!();
println!("⚠️ IMPORTANT NOTES:");
println!(" - Sandbox 3DS behavior may be limited");
println!(" - Real 3DS testing requires production environment");
println!(" - Test cards may not always trigger 3DS in sandbox");
println!();
println!("🚀 TO RUN THE DEMO:");
println!(" cargo run --example 3ds_payment_demo");
println!();
print!("Press Enter to continue...");
io::stdout().flush().unwrap();
io::stdin().read_line(&mut String::new()).unwrap();
}