extension.js

const {commands, window} = require("vscode");
const SeeingIsBelieving = require("./lib/seeing_is_believing");

function activate(context) {
  const verifyRuby = function() {
    const activeEditor = window.activeTextEditor;

    if (!activeEditor) {
      return;
    }
    return activeEditor.document.languageId === "ruby";
  };
  const disposableToggleMarks = commands.registerCommand(
    "seeing-is-believing.toggle-marks",
    function() {
      if (!verifyRuby()) {
        return new Promise((_, rej) =>
          rej("Seeing is Believing can only process Ruby files")
        );
      }

      return SeeingIsBelieving.toggleMarks();
    }
  );

  const disposableRun = commands.registerCommand(
    "seeing-is-believing.run",
    function() {
      if (!verifyRuby()) {
        return new Promise((_, rej) =>
          rej("Seeing is Believing can only process Ruby files")
        );
      }

      return SeeingIsBelieving.run();
    }
  );

  const disposableClean = commands.registerCommand(
    "seeing-is-believing.clean",
    function() {
      if (!verifyRuby()) {
        return new Promise((_, rej) =>
          rej("Seeing is Believing can only process Ruby files")
        );
      }

      return SeeingIsBelieving.clean();
    }
  );

  context.subscriptions.push(disposableToggleMarks);
  context.subscriptions.push(disposableRun);
  context.subscriptions.push(disposableClean);
}
exports.activate = activate;