(function() {
    'use strict';
    function AppendTitleField(text, event) {
        if ((!event.altKey && !event.ctrlKey) || event.shiftKey) {
			try {
				var titleInput = document.getElementById('title');
				if (event.shiftKey)
					titleInput.value = text;
				else
					titleInput.value += text;
				console.log('Appended title to title field: ' + text);
			} catch (err) {
				console.error('Failed to append text to title field:', err);
			}
		}
		
		var textArea = null;
		var fileckUrl = null;
		if (event.altKey) {
			try {
				const navElements = document.querySelectorAll("a");
				for (const element of navElements)
				{
					var ckUrl = decodeURI(element.href);
					if (ckUrl.startsWith("file://")){
						fileckUrl = ckUrl;
						ckUrl = ckUrl.replace("file:///", "");
						ckUrl = ckUrl.replace("file://", "");
						console.debug("Copping " + ckUrl + " to clipboard");
						textArea = document.createElement("textarea");
						textArea.value = ckUrl;
						document.body.appendChild(textArea);
						textArea.select();
						break;
					}
				}
			} catch (err) {
				console.error('Failed to get file URL:', err);
			}
		}
		else if (event.ctrlKey) {
			try {
				console.debug("Copping " + text + " to clipboard");
				textArea = document.createElement("textarea");
				textArea.value = text;
				document.body.appendChild(textArea);
				textArea.select();
			} catch (err) {
				console.error('Failed to get title:', err);
			}
		}
		
		if (textArea != null)
		{
			try {
				var successful = document.execCommand('copy');
				var msg = successful ? 'successful' : 'unsuccessful';
				console.log('Text copy ' + msg + ':', textArea.value);
			} catch (err) {
				console.error('Failed to copy text to clipboard:', err);
			}
			document.body.removeChild(textArea);
			try {
				if (fileckUrl != null && event.ctrlKey){
					window.open(fileckUrl, "_blank");
					console.log('Opening link ' + fileckUrl);
				}
			} catch (err) {
				console.error("Failed to open link '" + fileckUrl + "' with error:", err);
			}		
			
		}
    }

    function wrapElement(element) {
        var text = element.textContent.trim();
        var anchor = document.createElement('a');
        anchor.href = '#';
        anchor.textContent = text;
        anchor.classList.add('renamefile');
        anchor.title = 'Click to append title to [Title] input field; OR ctrl-key & mouse click to copy title to clipboard; OR shift-key click to copy to [Title] input field; OR alt-key click to copy file URI to clipboard.';
        anchor.addEventListener('click', function(event) {
            event.preventDefault();
            AppendTitleField(text, event);
        });
        element.innerHTML = '';
        element.appendChild(anchor);
    }

    function handleMutations(mutationsList, observer) {
        for(const mutation of mutationsList) {
            for(const addedNode of mutation.addedNodes) {
                if (addedNode.nodeType === Node.ELEMENT_NODE && addedNode.querySelector('.scene-header div.TruncatedText')) {
                    wrapElement(addedNode.querySelector('.scene-header div.TruncatedText'));
                }
            }
        }
    }
    const observer = new MutationObserver(handleMutations);
    observer.observe(document.body, { childList: true, subtree: true });
})();