/* ATC Lakehouse — scanlines + noise + architecture link */
(function () {
  var ARCH_URL = 'http://atc-docker01.dell-atc.lan:8080/docs/architecture.html';

  function injectOverlays() {
    if (!document.querySelector('.palantir-scanline')) {
      var scan = document.createElement('div');
      scan.className = 'palantir-scanline';
      document.body.appendChild(scan);
    }
    if (!document.querySelector('.palantir-noise')) {
      var noise = document.createElement('div');
      noise.className = 'palantir-noise';
      document.body.appendChild(noise);
    }
  }

  function linkLakehouseTitle() {
    document.querySelectorAll('header h1, header p, .greeting, [class*="greeting"]').forEach(function (el) {
      if (el.dataset.atcLinked) return;
      if (/lakehouse/i.test(el.textContent || '')) {
        el.style.cursor = 'pointer';
        el.title = 'Open architecture diagram';
        el.addEventListener('click', function () {
          window.open(ARCH_URL, '_blank');
        });
        el.dataset.atcLinked = '1';
      }
    });
  }

  function applyServiceColors() {
    document.querySelectorAll('li.service').forEach(function (card) {
      var desc = card.querySelector('.service-description');
      var text = desc ? desc.textContent : '';
      var link = card.querySelector('a[href^="http"]');
      if (text.indexOf('Host:') >= 0 || text.indexOf('Port:') >= 0 || !link) {
        card.classList.add('atc-db-tile');
      }
    });
  }


  function showGitSha() {
    if (document.getElementById('atc-git-sha')) return;
    fetch('http://atc-mgt01.dell-atc.lan:3001/api/v1/repos/mo/Lakehouse/commits?limit=1')
      .then(function (r) { return r.json(); })
      .then(function (d) {
        var sha = (d && d[0] && d[0].sha) ? d[0].sha.substring(0, 7) : 'git';
        var el = document.createElement('div');
        el.id = 'atc-git-sha';
        el.textContent = 'Lakehouse ' + sha;
        el.style.cssText = 'position:fixed;bottom:4px;right:8px;font-size:10px;color:#64748b;z-index:9999;font-family:monospace;';
        document.body.appendChild(el);
      })
      .catch(function () {});
  }

  function init() {
    injectOverlays();
    applyServiceColors();
    linkLakehouseTitle();
    showGitSha();
    new MutationObserver(linkLakehouseTitle).observe(document.body, { childList: true, subtree: true });
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }
})();