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<?php if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * Class NF_Fields_Email
 */
class NF_Fields_Email extends NF_Abstracts_UserInfo
{
    protected $_name = 'email';

protected $_nicename = 'Email';

protected $_type = 'email';

protected $_section = 'userinfo';

protected $_icon = 'envelope-o';

protected $_templates = 'email';

protected  $_test_value = 'foo@bar.dev';

protected $_settings_all_fields = array( 'custom_name_attribute', 'personally_identifiable' );

public function __construct()
    {
        parent::__construct();

$this->_nicename = esc_html__( 'Email', 'ninja-forms' );

$this->_settings[ 'custom_name_attribute' ][ 'value' ] = 'email';
        $this->_settings[ 'personally_identifiable' ][ 'value' ] = '1';

}

public function validate( $field, $data ) {
        $errors = parent::validate( $field, $data );
        if ( ! empty( $errors ) ) return $errors;
        if ( ! empty( $field['value'] ) && ( ! filter_var( $field['value'], FILTER_VALIDATE_EMAIL ) || ! is_email( $field['value'] ) ) ) {
            return esc_html__('Please enter a valid email address.', 'ninja-forms');
        }
    }

public function filter_default_value( $default_value, $field_class, $settings )
    {
        if( ! isset( $settings[ 'default_type' ] ) ||
            'user-meta' != $settings[ 'default_type' ] ||
            $this->_name != $field_class->get_name()) return $default_value;

$current_user = wp_get_current_user();

if( $current_user ){
            $default_value = $current_user->user_email;
        }

return $default_value;
    }
}