Class OverleafAdapter

webapp/_webapp/src/adapters/document-adapter.ts:12–130

import { getCodeMirrorView, getProjectId } from "../libs/helpers";

export class OverleafAdapter implements DocumentAdapter {
  readonly platform = "overleaf" as const;

  private getEditorView(): EditorView | null {
    return getCodeMirrorView();
  }

  isReady(): boolean {
    return this.getEditorView() !== null;
  }

  async getFullText(): Promise<string> {
    const view = this.getEditorView();
    if (!view) {
      return "";
    }
    return view.state.doc.toString();
  }

  async getSelection(): Promise<SelectionInfo | null> {
    const view = this.getEditorView();
    if (!view) {
      return null;
    }

    const selection = view.state.selection.main;
    if (selection.empty) {
      return null;
    }

    const text = view.state.sliceDoc(selection.from, selection.to);
    const doc = view.state.doc;

    // Get surrounding context
    const contextBefore = doc.sliceString(Math.max(0, selection.from - 100), selection.from);
    const contextAfter = doc.sliceString(selection.to, Math.min(doc.length, selection.to + 100));
    const surroundingText = `${contextBefore}[SELECTED_TEXT_START]${text}[SELECTED_TEXT_END]${contextAfter}`;

    // Create a range identifier that can be used later
    const rangeId = JSON.stringify({ from: selection.from, to: selection.to });

    return {
      text,
      surroundingText,
      rangeId,
    };
  }

  async insertText(text: string, location: "cursor" | "start" | "end" = "cursor"): Promise<void> {
    const view = this.getEditorView();
    if (!view) {
      throw new Error("Editor not available");
    }

    let pos: number;
    switch (location) {
      case "start":
        pos = 0;