/**
 * Auto-add https:// to links in the Classic Editor via JavaScript
 * Triggers when the user clicks 'Apply', hits 'Enter', or leaves the input field.
 */
function auto_add_https_classic_editor_js() {
    // Only run this script on admin pages where the editor might be present
    $screen = get_current_screen();
    if ( ! $screen || ! in_array( $screen->base, array( 'post' ) ) ) {
        return;
    }
    ?>
    <script type="text/javascript">
    jQuery(document).ready(function($) {
        
        // Function to check and prepend https://
        function fixLinkFormat(inputElement) {
            var input = $(inputElement);
            if (input.length === 0) return;
            
            var val = input.val().trim();
            
            // If not empty, doesn't start with standard prefixes, and contains a dot (looks like a domain)
            if (val && !/^(https?:\/\/|mailto:|tel:|#|\/)/i.test(val) && val.indexOf('.') !== -1) {
                input.val('https://' + val);
            }
        }

        // 1. Intercept clicks on the "Apply" / "Add Link" buttons
        // Targets the Advanced Dialog (#wp-link-submit) and Inline Toolbar (.wp-link-apply)
        $(document).on('mousedown click', '#wp-link-submit, .wp-link-apply', function() {
            fixLinkFormat('#wp-link-url');           // Advanced Dialog input
            fixLinkFormat('.wp-link-input input');   // Inline Toolbar input
        });

        // 2. Intercept the 'Enter' key inside the link input fields
        $(document).on('keydown', '#wp-link-url, .wp-link-input input', function(e) {
            if (e.which === 13) { // 13 is the Enter key
                fixLinkFormat(this);
            }
        });
        
        // 3. Fallback: Also format when the user clicks out of the input box (blur)
        $(document).on('blur', '#wp-link-url, .wp-link-input input', function() {
            fixLinkFormat(this);
        });
        
    });
    </script>
    <?php
}

// Hook into the admin footer to output the script
add_action( 'admin_footer', 'auto_add_https_classic_editor_js' );

function custom_classic_editor_styles( $init_array ) {
    
    // Define your custom CSS here. 
    // In this example, we are changing all <h2> tags to red.
    $custom_css = '#tinymce a {	color: #3858E9 !important; } #tinymce a:hover { text-decoration: underline !important; }';

    // Inject the CSS into TinyMCE's content_style array
    if ( isset( $init_array['content_style'] ) ) {
        $init_array['content_style'] .= ' ' . $custom_css;
    } else {
        $init_array['content_style'] = $custom_css;
    }

    return $init_array;
}

// Hook into TinyMCE initialization
add_filter( 'tiny_mce_before_init', 'custom_classic_editor_styles' );