<script>
// JavaScript workaround for JSWSERVER-25420
// Use with discretion - this is provided AS IS by Atlassian Support
// This may break without warning with any minor Jira upgrade

// Confirm we're viewing a plan
if (document.URL.indexOf('PortfolioPlanView') >= 0) {

    // Wait for the document to load so our "content" node will be available
    jQuery(document).on('ready', function () {
        const content = document.getElementById('content');

        // Create an observer
        const observer = new MutationObserver(mutations => {
            for (let mutation of mutations) {
                // Iterate through all nodes added during this mutation
                for (let node of mutation.addedNodes) {
                    // Fail fast: confirm the node is an element
                    if (!(node instanceof HTMLElement))
                        continue;

                    // Fail fast: confirm this is a (legacy) Atlaskit dropdown menu
                    if (!node.matches('div[class^="Droplist__Content-"]'))
                        continue;

                    // Skip to the menu container that's the parent of the options
                    const menu = node.querySelector('div[role="menu"] div[role="menu"]');
                    if (!menu)
                        continue;

                    for (let menuItem of menu.children) {
                        // Skip to the option's label
                        let menuLabel = menuItem.querySelector('span[class^="ItemParts__ContentWrapper"]');
                        if (!menuLabel)
                            continue;

                        // Check if the label is "Share"
                        if (menuLabel.textContent === 'Share') {
                            // Remove that option
                            menuItem.remove();
                            return;
                        }
                    }
                }
            }
        });

        // Start the observer
        observer.observe(content, {childList: true, subtree: true});
    });
}
</script>