Method constructor

src/components/editor/prompt-plugin.tsx:69–250

(
    public plugin: CodeMirrorPromptPlugin,
    public from: number,
    public to: number
  )

  protected container: HTMLDivElement;

  constructor(
    public plugin: CodeMirrorPromptPlugin,
    public from: number,
    public to: number
  ) {
    super();

    // Generate unique session id for this prompt
    const sessionId = generateId();

    plugin.lock();
    this.container = document.createElement("div");

    plugin.isActive = true;
    plugin.activeWidget = this;

    const view = plugin.getEditorView();
    if (!view) return;

    // First we need to lock the editor to read-only.
    // This will simplify the logic of the plugin of not having to
    // worry about keeping up with the editor state while the prompt
    const getSelectionLines = () => {
      const startLineNumber = view.state.doc.lineAt(from).number;
      const endLineNumber = view.state.doc.lineAt(to).number;

      return Array.from(
        { length: endLineNumber - startLineNumber + 1 },
        (_, i) => startLineNumber + i
      );
    };

    const selectedLines = getSelectionLines();

    // Calculate cursor and selection positions
    const startPosition = from;
    const startLineNumber = view.state.doc.lineAt(startPosition).number;
    const endPosition = selectedLines
      ? view.state.doc.line(selectedLines[selectedLines.length - 1]).to
      : view.state.doc.lineAt(startPosition).to;

    // Reverse the suggestion that we have made
    const selectedOriginalText = view.state.sliceDoc(
      startPosition,
      endPosition
    );

    const originalText = view.state.doc.toString();
    let suggestedText = selectedOriginalText;

    const reverseSuggestion = () => {
      if (suggestedText !== selectedOriginalText) {
        this.plugin.hideSuggestionDiff();

        view.dispatch({
          changes: {
            from: startPosition,
            to: startPosition + suggestedText.length,