<?php
defined( 'ABSPATH' ) or die( 'Something went wrong.' );

global $current_user;


$this->set_current_section( 'login_auth' );
$this->set_section_description( __( 'Two-Factor Authentication is a way to enforce another layer of login verification, like an additional password, a secret key, a special link sent by email etc. Not just your login and password.', 'secupress' ) );
$this->add_section( __( 'Authentication', 'secupress' ) );

$field_name = $this->get_field_name( 'type' );
if ( secupress_is_pro() && defined( 'SECUPRESS_ALLOW_LOGIN_ACCESS' ) && SECUPRESS_ALLOW_LOGIN_ACCESS ) {
	$this->add_field( array(
		'title'             => __( 'Use a Two-Factor Authentication', 'secupress' ),
		'label_for'         => $field_name,
		'type'              => 'html',
		'value'             => '',
		'helpers'           => array(
			array(
				'type'        => 'warning',
				'description' => sprintf( __( 'The %1$s constant is set, you cannot use the %2$s module.', 'secupress' ), '<code>SECUPRESS_ALLOW_LOGIN_ACCESS</code>', '<em>Two-Factor Authentication</em>' ),
			),
		),
	) );
	return;
} elseif ( secupress_is_pro() && $plugin = apply_filters( 'secupress.scan.SecuPress_Scan_Easy_Login.activated', false ) ) {
	$this->add_field( array(
		'title'             => __( 'Use a Two-Factor Authentication', 'secupress' ),
		'label_for'         => $field_name,
		'type'              => 'html',
		'value'             => '',
		'helpers'           => array(
			array(
				'type'        => 'help',
				'description' => sprintf( __( 'The %1$s plugin is active, you cannot use the %2$s module.', 'secupress' ), '<strong>' . $plugin . '</strong>', '<em>Two-Factor Authentication</em>' ),
			),
		),
	) );
	return;
} else {
	$resend_link_url  = wp_nonce_url( admin_url( 'admin-post.php?action=send_passwordless_validation_link' ), 'send_passwordless_validation_link' );
	
	$is_plugin_active = [];
	$values           = array(
		'passwordless' => __( 'Yes, use the <strong>PasswordLess</strong> method (legacy)', 'secupress' ),
		'otp-auth'     => __( 'Yes, use the <strong>OTP Auth App</strong> method', 'secupress' ),
	);
	foreach ( $values as $_plugin => $label ) {
		if ( secupress_is_submodule_active( 'users-login', $_plugin ) ) {
			$is_plugin_active[] = $_plugin;
		}
	}
	// Let the possibility to continue using PasswordLess until your switch for OTP ;)
/* //// redo
	if ( array_search( 'passwordless', $is_plugin_active ) !== false ) {
		$type   = 'radioboxes';
		$values['otp-auth'] .= ' ' . _x( '(recommended)', 'method', 'secupress' );
	} else {
		$type   = 'checkboxes';
		unset( $values['passwordless'] );
	}

	$this->add_field( array(
		'title'             => __( 'Use a Two-Factor Authentication', 'secupress' ),
		'label_for'         => $field_name,
		'plugin_activation' => true,
		'type'              => $type,
		'value'             => $is_plugin_active,
		'options'           => $values,
		'disabled_values'   => ['otp-auth'],
		'helpers'           => array(
			array(
				'type'        => 'description',
				'description' => __( 'COMING SOON!', 'secupress' ),
			),
		),
	) );

	$this->add_field( array(
		'title'             => __( 'Receive alerts for OTP Auth App usage.', 'secupress' ),
		'label'             => __( 'Yes, allow users to receive an email notification whenever someone logs into their account', 'secupress' ),
		'label_for'         => $this->get_field_name( 'otp-mail' ),
		'type'              => 'checkbox',
		'default'           => 1,
		'depends'           => $field_name . '_otp-auth',
		'helpers'           => array(
			array(
				'type'        => 'description',
				'description' => __( 'Users can disable this feature in their profile.', 'secupress' ),
			),
		),
	) );

	$this->add_field( array(
		'title'             => __( 'Allow login using mobile sessions', 'secupress' ),
		'label'             => __( 'Yes, allow a user to use their existing mobile session', 'secupress' ),
		'label_for'         => $this->get_field_name( 'otp-mobile' ),
		'type'              => 'checkbox',
		'default'           => 1,
		'depends'           => $field_name . '_otp-auth',
		'helpers'           => array(
			array(
				'type'        => 'description',
				'description' => __( 'Users can disable this feature in their profile.', 'secupress' ),
			),
		),
	) );
*/

	$message = '';
	if ( secupress_is_pro() ) {
		$passwordless_activation = secupress_passwordless_is_activated();
		if ( is_int( $passwordless_activation ) ) {
			if ( $passwordless_activation === get_current_user_id() ) {
				$message = __( 'This module will not work until validated by a link sent to your email address when you activated it.', 'secupress' );
			} else {
				$message = __( 'This module will not work until the person who activated it has validated it by clicking a link sent to their email address.', 'secupress' );
			}
		}
	}
	$this->add_field( array(
		'title'             => __( 'Use a Two-Factor Authentication', 'secupress' ),
		'name'              => $field_name,
		'plugin_activation' => true,
		'type'              => 'checkbox',
		'label'             => __( 'Yes, use the <strong>PasswordLess</strong> method', 'secupress' ),
		'value'             => (int) secupress_is_submodule_active( 'users-login', 'passwordless' ),
		'helpers'           => array(
			array(
				'type'        => 'description',
				'description' => __( 'Users will just have to enter their email address when log in, then click on a link in the email they receive.', 'secupress' ),
			),
			array(
				'type'        => 'warning',
				'description' => $message,
			),
		),
	) );
/*
	if ( secupress_is_submodule_active( 'users-login', 'passwordless' ) && ! secupress_passwordless_is_activated() ) {
		$resend_link_url = wp_nonce_url( admin_url( 'admin-post.php?action=send_passwordless_validation_link' ), 'send_passwordless_validation_link' );
		$this->add_field( array(
			'name'         => 'passwordless_warning',
			'depends'      => $field_name . '_passwordless',
			'type'         => 'html',
			'value'        => '<span class="dashicons dashicons-warning"></span>' . __( 'This module will not function until you validate it by clicking a link sent to your email address during activation.', 'secupress' ) . '<br>' . sprintf( __( 'Need to <a href="%s">resend the validation email</a>?', 'secupress' ), $resend_link_url ),
			'move_item'    => '.secupress-field-double-auth_type_passwordless',
		) );
	}
*/
/*
	// Use this filters like the next blocks are helpers
	// if ( apply_filters( 'secupress.settings.help', 'passwordless_info', $field_name . '_passwordless', 'description' ) ) {
	// 	$this->add_field( array(
	// 		'name'         => 'passwordless_info',
	// 		'depends'      => $field_name . '_passwordless',
	// 		'type'         => 'html',
	// 		'value'        => '<span class="dashicons dashicons-editor-help"></span>' . __( 'Affected users will have to provide their email address, then click on a link in their mailbox to log in.', 'secupress' ) . '<hr>',
	// 		'move_item'    => '.secupress-field-double-auth_type_passwordless',
	// 	) );
	// }
*/
	if ( apply_filters( 'secupress.settings.help', 'otp-auth_info', $field_name . '_otp-auth', 'description' ) ) {
		$this->add_field( array(
			'name'         => 'otp-auth_info',
			'depends'      => $field_name . '_otp-auth',
			'type'         => 'html',
			'value'        => '<span class="dashicons dashicons-editor-help"></span>' . __( 'Affected users will have to provide their email address, then enter a unique numeric code to log in. They also need to set up a mobile app to use it.', 'secupress' ) . '<hr>',
			'move_item'    => '.secupress-field-double-auth_type_otp-auth',
		) );
	}
	if ( apply_filters( 'secupress.settings.help', 'none_info', $field_name . '_none', 'description' ) ) {
		$this->add_field( array(
			'name'         => 'none_info',
			'depends'      => $field_name . '_none',
			'type'         => 'html',
			'value'        => '<span class="dashicons dashicons-editor-help"></span>' . __( 'We recommend you to activate at least the <a href="#row-password-policy_strong_passwords">Force Strong Password</a> module below.', 'secupress' ) . '<hr>',
			'move_item'    => '.secupress-field-double-auth_type_none',
		) );
	}
	$this->add_field( array(
		'title'        => '<span class="dashicons dashicons-groups"></span> ' . __( 'Affected Roles', 'secupress' ),
		'description'  => __( 'Which roles does this module affect?', 'secupress' ),
		'depends'      => $field_name,
		// 'depends'      => $field_name . '_passwordless ' . $field_name . '_otp-auth',
		'row_class'    => 'affected-role-row',
		'name'         => $this->get_field_name( 'affected_role' ),
		'type'         => 'roles',
		'label_screen' => __( 'Affected Roles', 'secupress' ),
		'move_item'    => '.secupress-field-double-auth_type_passwordless',
		'helpers'      => array(
			array(
				'type'        => 'description',
				'description' => __( 'Future roles will be automatically selected', 'secupress' ),
			),
			array(
				'type'        => 'warning',
				'class'       => 'hide-if-js',
				'description' => __( 'Select at least 1 role', 'secupress' ),
			),
		),
	) );

}

$req_wp_ver = '6.8'; // Minimum WP version required
$is_wp_ok   = secupress_wp_version_is( $req_wp_ver );

$helper_type = $is_wp_ok ? '' : 'warning';
$helper_desc = $is_wp_ok ? '' : sprintf(
	__( 'WordPress <b>v%1$s</b> is required to use the module <em>%2$s</em>.', 'secupress' ),
	$req_wp_ver,
	__( 'Force the Best Password Encryption Method', 'secupress' )
);

$active    = secupress_is_submodule_active( 'users-login', 'force-strong-encryption' );
$sp_algo   = secupress_get_option( 'strong_encryption_system' );
$wp_algo   = apply_filters( 'wp_hash_password_algorithm', PASSWORD_BCRYPT );
$best_algo = secupress_get_best_encryption_system();

$cur_algo = $active && !empty( $sp_algo['algo'] ) ? $sp_algo['algo'] : ( $best_algo ?: $wp_algo );
$cur_algo_name = secupress_get_encryption_name( $cur_algo );

$opts = apply_filters( 'wp_hash_password_options', [], $cur_algo_name );
$cost = $opts['cost'] ?? ( $opts['time_cost'] ?? false );

$best_stat = secupress_get_best_cost_by_algo( $best_algo );
$best_cost = $best_stat['cost'] ?? false;

if ( ! $cost ) {
	$hash = password_hash( 'a', $best_algo );
	$info = password_get_info( $hash );
	$cost = $info['options']['cost'] ?? ( $info['options']['time_cost'] ?? _x( 'Unknown', 'Unknown cost', 'secupress' ) );
}

if ( $active && isset( $sp_algo['cost'] ) ) {
	$cost = $sp_algo['cost'];
}

$is_argon = strpos( $best_algo, 'argon' ) !== false;
$desc = ! secupress_is_expert_mode() || ! $is_argon
	? sprintf(
		__( 'We recommend using %s with %s iterations.', 'secupress' ),
		secupress_tag_me( secupress_get_encryption_name( $best_algo ), 'strong' ),
		secupress_code_me( $best_cost )
	)
	: sprintf(
		__( 'We recommend using %s with %s iterations and a memory usage of %s.', 'secupress' ),
		secupress_tag_me( secupress_get_encryption_name( $best_algo ), 'strong' ),
		secupress_code_me( $best_cost ),
		secupress_code_me( size_format( $best_stat['memory_cost'] ?? 0 ) )
	);

if ( ! $active ) {
	$desc .= '<br>' . __( 'No accounts on this site will experience login issues once this module is activated.', 'secupress' );
}

$this->add_field( array(
	'title'             => __( 'Force the Best Password Encryption Method Available', 'secupress' ) . ' — BETA',
	'description'       => $desc,
	'label_for'         => $this->get_field_name( 'force-strong-encryption' ),
	'plugin_activation' => true,
	'type'              => 'checkbox',
	'disabled'          => ! $is_wp_ok,
	'value'             => (int) secupress_is_submodule_active( 'users-login', 'force-strong-encryption' ),
	'label'             => sprintf( __( 'Yes, force %s as password encryption method with a cost of %s', 'secupress' ), secupress_tag_me( $cur_algo, 'strong' ), secupress_code_me( $best_cost ) ),
	'helpers'           => array(
		array(
			'type'        => 'description',
			'description' => ! $active ? sprintf( __( 'Current Password Encryption Method: %s with cost %s', 'secupress' ), secupress_tag_me( secupress_get_encryption_name( $wp_algo ), 'strong' ), secupress_code_me( $cost ) ) : '',
		),
		array(
			'type'        => $helper_type,
			'description' => $helper_desc
		),
	),
) );

$this->add_field( array(
	'title'             => __( 'Prevent Other Encryption Method to Log In', 'secupress' ),
	'description'       => __( 'Prevent fake accounts not using the recommended method to log in here.', 'secupress' ),
	'label_for'         => $this->get_field_name( 'prevent-low-encryption' ),
	'type'              => 'checkbox',
	'depends'           => $this->get_field_name( 'force-strong-encryption' ),
	'disabled'          => ! $is_wp_ok,
	'label'             => __( 'Yes, prevent log in without a strong encrypted system', 'secupress' ),
	'helpers'           => array(
		array(
			'type'        => $helper_type,
			'description' => $helper_desc
		),
	),
) );

$same_hashes = secupress_users_contains_duplicated_hashes();
$is_disabled = $same_hashes;
$helper_warn = $same_hashes ? sprintf( __( 'Your database table %s contains duplicated password hashes, <strong>which is highly suspicious</strong>. This feature adds a unique INDEX to this table, and will not function properly. Please, address this issue as soon as possible.', 'secupress' ), secupress_code_me( 'users' ) ) : '';
$this->add_field( array(
	'title'             => __( 'Prevent Password Hashes to be Reused for Other Users', 'secupress' ),
	'description'       => __( 'Prevent attackers from injecting duplicate password hashes into your database to log in easily.', 'secupress' ),
	'label_for'         => $this->get_field_name( 'prevent-hash-reuse' ),
	'type'              => 'checkbox',
	'depends'           => $this->get_field_name( 'force-strong-encryption' ),
	'disabled'          => ! $is_wp_ok || $is_disabled,
	'label'             => __( 'Yes, prevent the reuse of password hashes', 'secupress' ),
	'helpers'           => array(
		array(
			'type'        => 'warning',
			'description' => $helper_warn
		),
		array(
			'type'        => $helper_type,
			'description' => $helper_desc
		),
	),
) );

$this->set_current_plugin( 'captcha' );

$this->add_field( array(
	'title'             => __( 'Enable our CAPTCHA v2 on login page', 'secupress' ),
	'description'       => __( 'This CAPTCHA will prevent the login form from being submitted if its rule isn’t respected.', 'secupress' ),
	'label_for'         => $this->get_field_name( 'activate' ),
	'plugin_activation' => true,
	'value'             => (int) secupress_is_submodule_active( 'users-login', 'login-captcha' ),
	'type'              => 'checkbox',
	'attributes'        => [ 'data-value' => (int) secupress_is_submodule_active( 'users-login', 'login-captcha' ) ],
	'label'             => __( 'Yes, use a Captcha', 'secupress' ),
	'helpers'           => array(
		array(
			'type'        => 'warning',
			// 'description' => defined( 'SECUPRESS_CAPTCHA_NO_SESSION' ) || ( (int) secupress_is_submodule_active( 'users-login', 'login-captcha' ) && ! session_id() ) ? __( 'It seems you have a PHP session issue, this module will not work correctly. There is nothing we can do here.', 'secupress' ) : '',
		),
	),
) );

$this->add_field( array(
	'name'              => $this->get_field_name( 'captcha-style' ),
	'depends'           => $this->get_field_name( 'activate' ),
	'options'           => [ 'simple' => __( '<strong>Simple</strong> as a checkbox', 'secupress' ), 'challenge' => __( '<strong>Challenge</strong> with Emojis', 'secupress' ) ],
	'default'           => 'simple',
	'type'              => 'radios',
) );
  
$this->add_field( array(
	'depends'           => $this->get_field_name( 'captcha-style_simple' ) . ' ' . $this->get_field_name( 'activate' ),
	'type'              => 'html',
	'value'             => __( 'The box will check itself after 3 sec.', 'secupress' ),
	'move_item'         => 'label[for="captcha_captcha-style_simple"]'
) );

$sets                = secupress_get_emojiset( 'all' );
$options             = [];
foreach ( $sets as $key => $values ) {
	$options[ $key ] = implode( '&nbsp;', array_keys( secupress_get_emojiset( $key ) ) );
}
$options['random']   = __( 'Random', 'secupress' );
$this->add_field( array(
	'depends'           => $this->get_field_name( 'captcha-style_challenge' ),
	'name'              => $this->get_field_name( 'emoji-set' ),
	'options'           => $options,
	'type'              => 'select',
	'move_item'         => 'label[for="captcha_captcha-style_challenge"]'
) );
