package components

import "context"
import "strings"

type TwoFactorBackupCodesData struct {
	BackupCodes  []string
	ErrorMessage string
	SuccessMessage string
}

templ TwoFactorBackupCodes(ctx context.Context, data TwoFactorBackupCodesData) {
	@LayoutWithContext("Two-Factor Authentication Backup Codes", ctx) {
		<div class="min-h-screen bg-secondary-50 dark:bg-secondary-900 py-12">
			<div class="max-w-3xl mx-auto px-4 sm:px-6 lg:px-8">
				<div class="bg-white dark:bg-secondary-800 shadow rounded-lg p-6">
					<div class="text-center mb-6">
						<h2 class="text-3xl font-bold text-secondary-900 dark:text-secondary-100">2FA Backup Codes</h2>
						<p class="mt-2 text-secondary-600 dark:text-secondary-400">These codes can be used to login if you lose access to your authenticator app</p>
					</div>

					if data.ErrorMessage != "" {
						<div class="bg-red-100 dark:bg-red-900 border border-red-400 dark:border-red-700 text-red-700 dark:text-red-300 px-4 py-3 rounded-lg mb-6" role="alert">
							<div class="flex items-center">
								<i class="fas fa-exclamation-circle mr-2"></i>
								<span class="block sm:inline">{ data.ErrorMessage }</span>
							</div>
						</div>
					}

					if data.SuccessMessage != "" {
						if (strings.Contains(data.SuccessMessage, "IMPORTANT")) {
							// Show important messages with a different style and icon
							<div class="bg-yellow-100 dark:bg-yellow-900 border border-yellow-400 dark:border-yellow-700 text-yellow-700 dark:text-yellow-300 px-4 py-3 rounded-lg mb-6" role="alert">
								<div class="flex items-center">
									<i class="fas fa-exclamation-triangle mr-2"></i>
									<span class="block sm:inline font-bold">{ data.SuccessMessage }</span>
								</div>
							</div>
						} else {
							<div class="bg-green-100 dark:bg-green-900 border border-green-400 dark:border-green-700 text-green-700 dark:text-green-300 px-4 py-3 rounded-lg mb-6" role="alert">
								<div class="flex items-center">
									<i class="fas fa-info-circle mr-2"></i>
									<span class="block sm:inline">{ data.SuccessMessage }</span>
								</div>
							</div>
						}
					}

					<div class="space-y-8">
						if len(data.BackupCodes) > 0 {
							<div>
								<h3 class="text-xl font-semibold text-secondary-900 dark:text-secondary-100 mb-4">Your Backup Codes</h3>
								
								<div class="p-4 border border-amber-300 bg-amber-50 dark:bg-amber-900/20 dark:border-amber-700 rounded-lg mb-6">
									<div class="flex items-start">
										<div class="flex-shrink-0 mt-0.5">
											<i class="fas fa-shield-alt text-amber-600 dark:text-amber-400 text-lg"></i>
										</div>
										<div class="ml-3">
											<h4 class="text-sm font-medium text-amber-800 dark:text-amber-300">Security information</h4>
											<div class="mt-1 text-sm text-amber-700 dark:text-amber-400 space-y-2">
												<p><strong>These codes are your backup method to access your account.</strong></p>
												<ul class="list-disc pl-5 space-y-1">
													<li>Each code can only be used once.</li>
													<li>Store these codes in a secure password manager.</li>
													<li>These codes allow access to your account - keep them safe!</li>
													<li>For security, you can only view codes immediately after generating them.</li>
												</ul>
											</div>
										</div>
									</div>
								</div>
								
								<div class="grid grid-cols-2 gap-4 mb-6">
									for _, code := range data.BackupCodes {
										if strings.Contains(code, "REDACTED") {
											<div class="p-2 bg-secondary-200 dark:bg-secondary-700 rounded font-mono text-sm text-center text-secondary-500 dark:text-secondary-400">
												{ code }
											</div>
										} else {
											<div class="p-2 bg-secondary-100 dark:bg-secondary-700 rounded font-mono text-sm text-center font-bold">
												{ code }
											</div>
										}
									}
								</div>
								<div class="flex justify-center space-x-4 mt-6">
									if !strings.Contains(data.BackupCodes[0], "REDACTED") {
										<button 
											class="btn-secondary"
											onclick="downloadBackupCodes(this)">
											<i class="fas fa-download mr-2"></i>
											Download Backup Codes
										</button>
									}
									<form method="POST" action="/profile/2fa/regenerate-codes" class="inline">
										<button type="submit" class="btn-primary">
											<i class="fas fa-sync-alt mr-2"></i>
											Generate New Codes
										</button>
									</form>
								</div>
								<script>
									function downloadBackupCodes(button) {
										// Get backup codes from the displayed elements that don't contain "REDACTED"
										const codes = Array.from(
											document.querySelectorAll('.bg-secondary-100.dark\\:bg-secondary-700')
										).map(el => el.textContent.trim());
										
										// Create content for the file
										const content = 
											"2FA BACKUP CODES - KEEP THESE SAFE!\n" +
											"=====================================\n\n" +
											codes.join("\n") +
											"\n\n" +
											"Generated: " + new Date().toISOString().split('T')[0] + "\n" +
											"SECURITY WARNINGS:\n" +
											"* These codes can be used to access your account if you lose access to your authenticator app.\n" +
											"* Each code can only be used once.\n" +
											"* Keep these codes in a secure location like a password manager.\n" + 
											"* Treat these codes with the same security as your password.";
										
										// Create blob and download link
										const blob = new Blob([content], { type: 'text/plain' });
										const url = window.URL.createObjectURL(blob);
										const a = document.createElement('a');
										a.href = url;
										a.download = '2fa-backup-codes-secure.txt';
										
										// Trigger download
										document.body.appendChild(a);
										a.click();
										
										// Cleanup
										window.URL.revokeObjectURL(url);
										document.body.removeChild(a);
									}
								</script>
							</div>
						} else {
							<div class="text-center py-8">
								<div class="rounded-full bg-secondary-100 dark:bg-secondary-700 p-4 mx-auto w-16 h-16 flex items-center justify-center mb-4">
									<i class="fas fa-key text-secondary-500 dark:text-secondary-400 text-2xl"></i>
								</div>
								<h3 class="text-lg font-medium text-secondary-900 dark:text-secondary-100 mb-2">No Backup Codes Available</h3>
								<p class="text-secondary-600 dark:text-secondary-400 mb-6">You don't have any backup codes. Generate new ones for account recovery.</p>
								<form method="POST" action="/profile/2fa/regenerate-codes">
									<button type="submit" class="btn-primary">
										<i class="fas fa-sync-alt mr-2"></i>
										Generate Backup Codes
									</button>
								</form>
							</div>
						}
					</div>

					<div class="mt-8 pt-6 border-t border-secondary-200 dark:border-secondary-700">
						<div class="flex justify-between items-center">
							<a href="/profile" class="text-primary-600 dark:text-primary-400 hover:text-primary-800 dark:hover:text-primary-300">
								<i class="fas fa-arrow-left mr-2"></i>
								Back to Profile
							</a>
						</div>
					</div>
				</div>
			</div>
		</div>
	}
}