// Example 10: Communication - Email Verification

print("=== Communication & Email Verification 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 verification for a user
print("\n2. Creating verification...");

let verification = new_verification(
    "user_123",
    "alice@example.com"
)
.callback_url("https://example.com/verify");

print("   ✓ Created verification");
print("   Entity ID: " + verification.get_entity_id());
print("   Contact: " + verification.get_contact());
print("   Code: " + verification.get_code());
print("   Nonce: " + verification.get_nonce());
print("   Verification URL: " + verification.get_verification_url());
print("   Status: " + verification.get_status());

// Create email client
print("\n3. Creating email client...");
let email_client = new_email_client();
print("   ✓ Email client created");

// Send verification email with link
print("\n4. Sending verification email...");
email_client.send_verification_link(verification);
verification.mark_sent();
print("   ✓ Verification email sent");
print("   Status: " + verification.get_status());

// Save the verification
print("\n5. Saving verification to context...");
let verification_id = ctx.save(verification);
print("   ✓ Saved verification with ID: " + verification_id);

// Simulate user clicking link (nonce verification)
print("\n6. Simulating URL click verification...");
let nonce = verification.get_nonce();
print("   User clicks: " + verification.get_verification_url());
verification.verify_nonce(nonce);
print("   ✓ Verification successful via URL!");
print("   Status: " + verification.get_status());

// Save verified status
ctx.save(verification);

// Create another verification for code-based flow
print("\n7. Creating code-based verification for Bob...");

let bob_verification = new_verification(
    "user_456",
    "bob@example.com"
);

print("   ✓ Created verification for Bob");
print("   Contact: " + bob_verification.get_contact());
print("   Code: " + bob_verification.get_code());

// Send code via email
print("\n8. Sending code-based verification email...");
email_client.send_verification_code(bob_verification);
bob_verification.mark_sent();
print("   ✓ Code sent");

// Save Bob's verification
let bob_verification_id = ctx.save(bob_verification);
print("   ✓ Saved with ID: " + bob_verification_id);

// Simulate user entering wrong code
print("\n9. Simulating code verification attempts...");
print("   Attempt 1 with wrong code...");
try {
    bob_verification.verify_code("000000");
    print("   ✗ Unexpected success");
} catch(err) {
    print("   ✗ Verification failed (expected): " + err);
    print("   Attempts: " + bob_verification.get_attempts());
}

// Verify with correct code
print("\n10. Verifying with correct code...");
let correct_code = bob_verification.get_code();
print("   Using code: " + correct_code);
bob_verification.verify_code(correct_code);
print("   ✓ Verification successful!");
print("   Status: " + bob_verification.get_status());

ctx.save(bob_verification);

// List all verifications
print("\n11. Listing all verifications in context...");
let verification_ids = ctx.list("verifications");
print("   ✓ Found " + verification_ids.len() + " verifications");

print("\n=== Communication & Email Verification Example Complete ===");