(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 });
})();