slack.nix

{ pkgs ? import <nixpkgs> {} }:

# From https://github.com/kfahy/slack-disable-wysiwyg-bookmarklet/blob/master/bin/patch-desktop-app
let patch = ''

  (() => {
    const disableWysiwygEditor = redux => {
      const {
        wysiwyg_composer,
        wysiwyg_composer_ios,
        wysiwyg_composer_webapp,
        ...payload
      } = redux.getState().experiments;
      redux.dispatch(
        {
          type: '[19] Bulk add experiment assignments to redux',
          payload
        }
      );
    };
    let currentTeamId = null;
    const seenTeams = {};
    setInterval(() => {
      if (!window.slackDebug) return;
      const { activeTeamId } = window.slackDebug;
      const newId = activeTeamId && activeTeamId !== currentTeamId
      if (newId && slackDebug[activeTeamId] && slackDebug[activeTeamId].redux) {
        currentTeamId = activeTeamId;
        const needsPatching = !seenTeams[activeTeamId];
        if (needsPatching) {
          seenTeams[activeTeamId] = true;
          const checkInterval = setInterval(() => {
            const team = slackDebug[activeTeamId];
            const wysiwygLoaded = Boolean(
              document.querySelector('[data-qa="texty_composer_button"]')
            );
            if (team.redux && wysiwygLoaded) {
              disableWysiwygEditor(team.redux);
              clearInterval(checkInterval);
            }
          });
        }
      }
    }, 50);
  })();
'';
in
pkgs.slack.overrideAttrs (oa: {
  installPhase = oa.installPhase + ''
    asar extract $out/lib/slack/resources/app.asar $out/lib/slack/resources/app.asar.unpacked
    cat <<EOF >> $out/lib/slack/resources/app.asar.unpacked/dist/ssb-interop.bundle.js
    ${patch}
    EOF
    asar pack $out/lib/slack/resources/app.asar.unpacked $out/lib/slack/resources/app.asar
    wrapProgram $out/bin/slack --set SLACK_DEVELOPER_MENU=true
  '';
})