//add 2 new custom fields to Job form
add_filter( 'submit_job_form_fields', 'frontend_add_fb_field' );
function frontend_add_fb_field( $fields ) {
  $fields['company']['company_facebook'] = array(
    'label'       => __( 'Facebook pagina', 'job_manager' ),
    'type'        => 'text',
    'required'    => false,
    'placeholder' => 'facebook pagina',
    'priority'    => 10
  );
  return $fields;
}

add_filter( 'submit_job_form_fields', 'frontend_add_email_field' );
function frontend_add_email_field( $fields ) {
  $fields['company']['company_email'] = array(
    'label'       => __( 'Email adres', 'job_manager' ),
    'type'        => 'text',
    'required'    => false,
    'placeholder' => 'bier@brouwerij.nl',
    'priority'    => 12
  );
  return $fields;
}


//now, add these fields to admin
add_filter( 'job_manager_job_listing_data_fields', 'admin_add_fb_field' );

function admin_add_fb_field( $fields ) {
  $fields['_company_facebook'] = array(
    'label'       => __( 'Facebook pagina', 'job_manager' ),
    'type'        => 'text',
    'placeholder' => 'facebook pagina',
    'description' => ''
  );
  return $fields;
}


add_filter( 'job_manager_job_listing_data_fields', 'admin_add_email_field' );

function admin_add_email_field( $fields ) {
  $fields['_company_email'] = array(
    'label'       => __( 'Email adres', 'job_manager' ),
    'type'        => 'text',
    'placeholder' => 'bier@brouwerij.nl',
    'description' => ''
  );
  return $fields;
}


//and to a job template

add_action( 'listable_single_job_listing_after_social_icons', 'display_brewery_fb_data' );

function display_brewery_fb_data() {
  global $post;

  $company_fb = get_post_meta( $post->ID, '_company_facebook', true );

  if ( $company_fb ) { ?>
    <a class="listing-contact  listing--facebook" href="<?php echo esc_html( $company_fb );?>" itemprop="url"><i class="fa fa-facebook" aria-hidden="true"></i><?php echo esc_html( $company_fb );?></a>
  <?php }
}

add_action( 'listable_single_job_listing_after_social_icons', 'display_brewery_email_data' );

function display_brewery_email_data() {
  global $post;

  $company_email = get_post_meta( $post->ID, '_company_email', true );

  if ( $company_email ) { ?>
    <a class="listing-contact  listing--email" href="mailto:<?php echo esc_html( $company_email );?>" itemprop="url"><?php echo esc_html( $company_email );?></a>
  <?php }
}