(function () {
  'use strict';

  function showToast(message) {
    var container = document.getElementById('toast-container');
    if (!container) return;
    var toast = document.createElement('div');
    toast.className = 'toast';
    toast.setAttribute('role', 'status');
    toast.textContent = message;
    container.appendChild(toast);
    setTimeout(function () {
      if (toast.parentNode) toast.parentNode.removeChild(toast);
    }, 2800);
  }
  window.PolarToast = showToast;

  function setTheme(theme, silent) {
    var allowed = ['light', 'dark', 'system'];
    if (allowed.indexOf(theme) === -1) theme = 'system';
    document.documentElement.setAttribute('data-theme', theme);
    try {
      localStorage.setItem('polar_theme', theme);
    } catch (e) {}
    document.cookie = 'polar_theme=' + encodeURIComponent(theme) + '; path=/; max-age=31536000; SameSite=Lax';

    document.querySelectorAll('[data-set-theme]').forEach(function (el) {
      var isCurrent = el.getAttribute('data-set-theme') === theme;
      el.classList.toggle('active', isCurrent);
      el.setAttribute('aria-checked', isCurrent ? 'true' : 'false');
    });
  }
  window.PolarSetTheme = setTheme;

  try {
    var currentAttr = document.documentElement.getAttribute('data-theme') || 'system';
    document.querySelectorAll('[data-set-theme]').forEach(function (el) {
      el.classList.toggle('active', el.getAttribute('data-set-theme') === currentAttr);
    });
  } catch (e) {}

  function toggleSidebar() {
    var html = document.documentElement;
    var isCollapsed = html.getAttribute('data-sidebar') === 'collapsed';
    if (isCollapsed) {
      html.removeAttribute('data-sidebar');
      try {
        localStorage.setItem('polar_sidebar', 'expanded');
      } catch (e) {}
    } else {
      html.setAttribute('data-sidebar', 'collapsed');
      try {
        localStorage.setItem('polar_sidebar', 'collapsed');
      } catch (e) {}
    }
  }
  window.PolarToggleSidebar = toggleSidebar;

  function closeAllDropdowns() {
    document.querySelectorAll('[data-dropdown-menu].open').forEach(function (menu) {
      menu.classList.remove('open');
      var parent = menu.closest('[data-dropdown]');
      if (parent) {
        var btn = parent.querySelector('[data-dropdown-trigger]');
        if (btn) btn.setAttribute('aria-expanded', 'false');
      }
    });
  }

  function openDialog(id) {
    var dlg = document.getElementById(id);
    if (!dlg) return;
    closeAllDropdowns();
    dlg.classList.add('open');
    dlg.setAttribute('aria-hidden', 'false');
    var firstInput = dlg.querySelector('input:not([type="hidden"]), button[data-autofocus]');
    if (firstInput) {
      setTimeout(function () { firstInput.focus(); }, 20);
    }
  }
  window.PolarOpenDialog = openDialog;

  function closeDialog(dlg) {
    if (!dlg) return;
    dlg.classList.remove('open');
    dlg.setAttribute('aria-hidden', 'true');
  }

  // Command Palette logic
  var paletteIndex = 0;

  function getVisiblePaletteItems() {
    var list = document.querySelectorAll('#command-palette [data-palette-item]');
    var visible = [];
    list.forEach(function (item) {
      if (item.style.display !== 'none') visible.push(item);
    });
    return visible;
  }

  function updatePaletteSelection() {
    var items = getVisiblePaletteItems();
    if (paletteIndex >= items.length) paletteIndex = 0;
    if (paletteIndex < 0) paletteIndex = Math.max(0, items.length - 1);
    items.forEach(function (el, idx) {
      el.classList.toggle('selected', idx === paletteIndex);
      if (idx === paletteIndex) {
        el.scrollIntoView({ block: 'nearest' });
      }
    });
  }

  function filterPalette(query) {
    var q = (query || '').trim().toLowerCase();
    var allItems = document.querySelectorAll('#command-palette [data-palette-item]');
    allItems.forEach(function (item) {
      var text = (item.getAttribute('data-palette-keywords') || item.textContent || '').toLowerCase();
      var show = q === '' || text.indexOf(q) !== -1;
      item.style.display = show ? '' : 'none';
    });
    document.querySelectorAll('#command-palette [data-palette-group]').forEach(function (group) {
      var hasVisible = false;
      group.querySelectorAll('[data-palette-item]').forEach(function (it) {
        if (it.style.display !== 'none') hasVisible = true;
      });
      group.style.display = hasVisible ? '' : 'none';
    });
    paletteIndex = 0;
    updatePaletteSelection();
  }

  function openPalette(initialQuery) {
    var palette = document.getElementById('command-palette');
    if (!palette) return;
    closeAllDropdowns();
    palette.classList.add('open');
    palette.setAttribute('aria-hidden', 'false');
    var input = document.getElementById('command-palette-input');
    if (input) {
      input.value = initialQuery || '';
      filterPalette(input.value);
      setTimeout(function () {
        input.focus();
        if (initialQuery) input.select();
      }, 20);
    }
  }
  window.PolarOpenPalette = openPalette;

  function activatePaletteItem(item) {
    if (!item) return;
    var palette = document.getElementById('command-palette');
    var href = item.getAttribute('data-palette-href');
    var theme = item.getAttribute('data-palette-theme');
    var action = item.getAttribute('data-palette-action');
    if (palette) closeDialog(palette);

    if (theme) {
      setTheme(theme, false);
    } else if (action === 'shortcuts') {
      openDialog('shortcuts-dialog');
    } else if (action === 'toggle-sidebar') {
      toggleSidebar();
    } else if (href) {
      window.location.href = href;
    }
  }

  document.addEventListener('click', function (e) {
    // Toggle sidebar
    var sbBtn = e.target.closest('[data-toggle-sidebar]');
    if (sbBtn) {
      e.preventDefault();
      toggleSidebar();
      return;
    }

    // Dropdown trigger
    var trigger = e.target.closest('[data-dropdown-trigger]');
    if (trigger) {
      e.stopPropagation();
      var dropdown = trigger.closest('[data-dropdown]');
      var menu = dropdown ? dropdown.querySelector('[data-dropdown-menu]') : null;
      var wasOpen = menu && menu.classList.contains('open');
      closeAllDropdowns();
      if (menu && !wasOpen) {
        menu.classList.add('open');
        trigger.setAttribute('aria-expanded', 'true');
      }
      return;
    }

    // Theme button
    var themeBtn = e.target.closest('[data-set-theme]');
    if (themeBtn) {
      e.preventDefault();
      setTheme(themeBtn.getAttribute('data-set-theme'), false);
      closeAllDropdowns();
      return;
    }

    // Open Command Palette
    var paletteTrigger = e.target.closest('[data-open-palette]');
    if (paletteTrigger) {
      e.preventDefault();
      openPalette(paletteTrigger.getAttribute('data-open-palette') || '');
      return;
    }

    // Palette item click
    var paletteItem = e.target.closest('[data-palette-item]');
    if (paletteItem) {
      e.preventDefault();
      activatePaletteItem(paletteItem);
      return;
    }

    // Dialog open
    var dlgOpen = e.target.closest('[data-dialog-open]');
    if (dlgOpen) {
      e.preventDefault();
      openDialog(dlgOpen.getAttribute('data-dialog-open'));
      return;
    }

    // Dialog close
    var dlgClose = e.target.closest('[data-dialog-close]');
    if (dlgClose) {
      e.preventDefault();
      closeDialog(dlgClose.closest('.backdrop'));
      return;
    }

    // Backdrop click
    if (e.target.classList.contains('backdrop')) {
      closeDialog(e.target);
      return;
    }

    // Mobile drawer
    var drawerOpen = e.target.closest('[data-drawer-open]');
    if (drawerOpen) {
      var drw = document.getElementById('mobile-drawer');
      if (drw) drw.classList.add('open');
      return;
    }
    var drawerClose = e.target.closest('[data-drawer-close]');
    if (drawerClose || e.target.id === 'mobile-drawer') {
      var drw2 = document.getElementById('mobile-drawer');
      if (drw2) drw2.classList.remove('open');
      return;
    }

    // Copy to clipboard
    var copyBtn = e.target.closest('[data-copy]');
    if (copyBtn) {
      e.preventDefault();
      var text = copyBtn.getAttribute('data-copy');
      var copiedMsg = document.documentElement.getAttribute('data-copied-text') || 'Copied';
      if (navigator.clipboard && navigator.clipboard.writeText) {
        navigator.clipboard.writeText(text).then(function () {
          showToast(copiedMsg);
        });
      } else {
        var ta = document.createElement('textarea');
        ta.value = text;
        document.body.appendChild(ta);
        ta.select();
        document.execCommand('copy');
        document.body.removeChild(ta);
        showToast(copiedMsg);
      }
      return;
    }

    if (!e.target.closest('[data-dropdown-menu]')) {
      closeAllDropdowns();
    }
  });

  // Input handlers (palette filter + delete repo confirmation match)
  document.addEventListener('input', function (e) {
    if (e.target.id === 'command-palette-input') {
      filterPalette(e.target.value);
      return;
    }

    var matchExpected = e.target.getAttribute('data-confirm-input');
    if (matchExpected !== null) {
      var btnId = e.target.getAttribute('data-confirm-button');
      var btn = btnId ? document.getElementById(btnId) : null;
      if (btn) {
        btn.disabled = e.target.value.trim() !== matchExpected;
      }
    }

    if (e.target.hasAttribute('data-file-filter')) {
      var q = e.target.value.trim().toLowerCase();
      document.querySelectorAll('[data-tree-row]').forEach(function (row) {
        var name = (row.getAttribute('data-tree-name') || '').toLowerCase();
        row.style.display = !q || name.indexOf(q) !== -1 ? '' : 'none';
      });
    }
  });

  // Keyboard navigation & chords
  var lastChordKey = '';
  var lastChordTime = 0;

  document.addEventListener('keydown', function (e) {
    var palette = document.getElementById('command-palette');
    var isPaletteOpen = palette && palette.classList.contains('open');

    if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'k') {
      e.preventDefault();
      if (isPaletteOpen) {
        closeDialog(palette);
      } else {
        openPalette('');
      }
      return;
    }

    if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'b') {
      e.preventDefault();
      toggleSidebar();
      return;
    }

    if (e.key === 'Escape') {
      closeAllDropdowns();
      document.querySelectorAll('.backdrop.open').forEach(function (b) {
        closeDialog(b);
      });
      var drw = document.getElementById('mobile-drawer');
      if (drw) drw.classList.remove('open');
      return;
    }

    if (isPaletteOpen) {
      var items = getVisiblePaletteItems();
      if (e.key === 'ArrowDown') {
        e.preventDefault();
        paletteIndex = (paletteIndex + 1) % Math.max(1, items.length);
        updatePaletteSelection();
      } else if (e.key === 'ArrowUp') {
        e.preventDefault();
        paletteIndex = (paletteIndex - 1 + Math.max(1, items.length)) % Math.max(1, items.length);
        updatePaletteSelection();
      } else if (e.key === 'Enter') {
        e.preventDefault();
        if (items[paletteIndex]) activatePaletteItem(items[paletteIndex]);
      }
      return;
    }

    var tag = e.target && e.target.tagName ? e.target.tagName.toUpperCase() : '';
    if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT' || (e.target && e.target.isContentEditable)) {
      return;
    }
    if (e.ctrlKey || e.metaKey || e.altKey) return;

    var now = Date.now();
    if (lastChordKey === 'g' && now - lastChordTime < 900) {
      lastChordKey = '';
      if (e.key.toLowerCase() === 'h') {
        e.preventDefault();
        window.location.href = '/';
        return;
      }
      if (e.key.toLowerCase() === 'r') {
        e.preventDefault();
        window.location.href = '/explore';
        return;
      }
    }

    if (e.key.toLowerCase() === 'g') {
      lastChordKey = 'g';
      lastChordTime = now;
      return;
    }

    if (e.key === '/') {
      e.preventDefault();
      var searchInput = document.querySelector('[data-search-input]');
      if (searchInput) {
        searchInput.focus();
      } else {
        openPalette('');
      }
      return;
    }

    if (e.key === '?') {
      e.preventDefault();
      openDialog('shortcuts-dialog');
      return;
    }

    if (e.key.toLowerCase() === 't') {
      e.preventDefault();
      var fileFilter = document.querySelector('[data-file-filter]');
      if (fileFilter) {
        fileFilter.focus();
      } else {
        openPalette('file:');
      }
    }
  });

  // Avatar file picker preview & client-side 256x256 square crop/resize
  document.addEventListener('change', function (e) {
    if (e.target && e.target.id === 'avatar-file-input') {
      var file = e.target.files && e.target.files[0];
      if (!file) return;
      var reader = new FileReader();
      reader.onload = function (ev) {
        var img = new Image();
        img.onload = function () {
          var size = 256;
          var canvas = document.createElement('canvas');
          canvas.width = size;
          canvas.height = size;
          var ctx = canvas.getContext('2d');
          var minSide = Math.min(img.width, img.height);
          var sx = (img.width - minSide) / 2;
          var sy = (img.height - minSide) / 2;
          ctx.drawImage(img, sx, sy, minSide, minSide, 0, 0, size, size);
          var dataUrl = canvas.toDataURL('image/webp', 0.88);
          if (!dataUrl || dataUrl.indexOf('data:image/webp') !== 0) {
            dataUrl = canvas.toDataURL('image/jpeg', 0.88);
          }
          var hidden = document.getElementById('avatar-data-input');
          var rmHidden = document.getElementById('remove-avatar-input');
          if (hidden) hidden.value = dataUrl;
          if (rmHidden) rmHidden.value = 'false';
          var previewWrap = document.getElementById('avatar-preview-wrap');
          if (previewWrap) {
            previewWrap.innerHTML = '<span class="avatar avatar-xl"><img src="' + dataUrl + '" alt="Avatar" class="avatar-img"></span>';
          }
        };
        img.src = ev.target.result;
      };
      reader.readAsDataURL(file);
    }
  });

  document.addEventListener('click', function (e) {
    var rmBtn = e.target.closest('#remove-avatar-btn');
    if (rmBtn) {
      e.preventDefault();
      var rmHidden = document.getElementById('remove-avatar-input');
      var hidden = document.getElementById('avatar-data-input');
      var fileInput = document.getElementById('avatar-file-input');
      if (rmHidden) rmHidden.value = 'true';
      if (hidden) hidden.value = '';
      if (fileInput) fileInput.value = '';
      var previewWrap = document.getElementById('avatar-preview-wrap');
      if (previewWrap) {
        previewWrap.innerHTML = '<span class="avatar avatar-xl">?</span>';
      }
      rmBtn.style.display = 'none';
    }
  });

  function resizeCoverImage(file, width, height, callback) {
    var reader = new FileReader();
    reader.onload = function (ev) {
      var img = new Image();
      img.onload = function () {
        var canvas = document.createElement('canvas');
        canvas.width = width;
        canvas.height = height;
        var ctx = canvas.getContext('2d');
        var scale = Math.max(width / img.width, height / img.height);
        var sw = width / scale;
        var sh = height / scale;
        var sx = (img.width - sw) / 2;
        var sy = (img.height - sh) / 2;
        ctx.drawImage(img, sx, sy, sw, sh, 0, 0, width, height);
        var dataUrl = canvas.toDataURL('image/webp', 0.84);
        if (!dataUrl || dataUrl.indexOf('data:image/webp') !== 0) {
          dataUrl = canvas.toDataURL('image/jpeg', 0.84);
        }
        callback(dataUrl);
      };
      img.src = ev.target.result;
    };
    reader.readAsDataURL(file);
  }

  function resizeSquareImage(file, size, callback) {
    var reader = new FileReader();
    reader.onload = function (ev) {
      var img = new Image();
      img.onload = function () {
        var canvas = document.createElement('canvas');
        canvas.width = size;
        canvas.height = size;
        var ctx = canvas.getContext('2d');
        var minSide = Math.min(img.width, img.height);
        var sx = (img.width - minSide) / 2;
        var sy = (img.height - minSide) / 2;
        ctx.drawImage(img, sx, sy, minSide, minSide, 0, 0, size, size);
        var dataUrl = canvas.toDataURL('image/webp', 0.88);
        if (!dataUrl || dataUrl.indexOf('data:image/webp') !== 0) {
          dataUrl = canvas.toDataURL('image/jpeg', 0.88);
        }
        callback(dataUrl);
      };
      img.src = ev.target.result;
    };
    reader.readAsDataURL(file);
  }

  document.addEventListener('change', function (e) {
    if (!e.target) return;
    if (e.target.id === 'background-file-input') {
      var bgFile = e.target.files && e.target.files[0];
      if (!bgFile) return;
      resizeCoverImage(bgFile, 1600, 700, function (dataUrl) {
        var hidden = document.getElementById('background-data-input');
        var remove = document.getElementById('remove-background-input');
        var preview = document.getElementById('background-preview');
        if (hidden) hidden.value = dataUrl;
        if (remove) remove.value = 'false';
        if (preview) {
          preview.classList.remove('is-empty');
          preview.innerHTML = '<img src="' + dataUrl + '" alt="">';
        }
      });
      return;
    }
    if (e.target.id === 'repo-background-file-input') {
      var repoBgFile = e.target.files && e.target.files[0];
      if (!repoBgFile) return;
      resizeCoverImage(repoBgFile, 1600, 700, function (dataUrl) {
        var hidden = document.getElementById('repo-background-data-input');
        var remove = document.getElementById('remove-repo-background-input');
        var preview = document.getElementById('repo-background-preview');
        if (hidden) hidden.value = dataUrl;
        if (remove) remove.value = 'false';
        if (preview) {
          preview.classList.remove('is-empty');
          preview.innerHTML = '<img src="' + dataUrl + '" alt="">';
        }
      });
      return;
    }
    if (e.target.id === 'repo-avatar-file-input') {
      var repoFile = e.target.files && e.target.files[0];
      if (!repoFile) return;
      resizeSquareImage(repoFile, 256, function (dataUrl) {
        var hidden = document.getElementById('repo-avatar-data-input');
        var remove = document.getElementById('remove-repo-avatar-input');
        var preview = document.getElementById('repo-avatar-preview-wrap');
        if (hidden) hidden.value = dataUrl;
        if (remove) remove.value = 'false';
        if (preview) {
          preview.innerHTML = '<span class="avatar avatar-xl"><img src="' + dataUrl + '" alt="Repository avatar" class="avatar-img"></span>';
        }
      });
    }
  });

  document.addEventListener('click', function (e) {
    var removeBg = e.target.closest('#remove-background-btn');
    if (removeBg) {
      e.preventDefault();
      var hidden = document.getElementById('background-data-input');
      var remove = document.getElementById('remove-background-input');
      var fileInput = document.getElementById('background-file-input');
      var preview = document.getElementById('background-preview');
      if (hidden) hidden.value = '';
      if (remove) remove.value = 'true';
      if (fileInput) fileInput.value = '';
      if (preview) {
        preview.classList.add('is-empty');
        preview.innerHTML = '<span class="background-preview-placeholder"><svg class="icon size-5" aria-hidden="true"><use href="#hi-image"></use></svg></span>';
      }
      removeBg.style.display = 'none';
      return;
    }

    var removeRepoBg = e.target.closest('#remove-repo-background-btn');
    if (removeRepoBg) {
      e.preventDefault();
      var hidden = document.getElementById('repo-background-data-input');
      var remove = document.getElementById('remove-repo-background-input');
      var fileInput = document.getElementById('repo-background-file-input');
      var preview = document.getElementById('repo-background-preview');
      if (hidden) hidden.value = '';
      if (remove) remove.value = 'true';
      if (fileInput) fileInput.value = '';
      if (preview) {
        preview.classList.add('is-empty');
        preview.innerHTML = '<span class="background-preview-placeholder"><svg class="icon size-5" aria-hidden="true"><use href="#hi-image"></use></svg></span>';
      }
      removeRepoBg.style.display = 'none';
      return;
    }

    var removeRepoAvatar = e.target.closest('#remove-repo-avatar-btn');
    if (removeRepoAvatar) {
      e.preventDefault();
      var hidden = document.getElementById('repo-avatar-data-input');
      var remove = document.getElementById('remove-repo-avatar-input');
      var fileInput = document.getElementById('repo-avatar-file-input');
      var preview = document.getElementById('repo-avatar-preview-wrap');
      if (hidden) hidden.value = '';
      if (remove) remove.value = 'true';
      if (fileInput) fileInput.value = '';
      if (preview) preview.innerHTML = '<span class="avatar avatar-xl">?</span>';
      removeRepoAvatar.style.display = 'none';
      return;
    }

    var deleteUser = e.target.closest('[data-admin-delete-user]');
    if (deleteUser) {
      e.preventDefault();
      var name = deleteUser.getAttribute('data-admin-delete-name') || '';
      var userForm = document.getElementById('admin-delete-user-form');
      var userInput = document.getElementById('admin_delete_confirm_user');
      var userTarget = document.getElementById('admin-delete-user-target');
      var userSubmit = document.getElementById('admin-delete-user-submit');
      if (userForm) userForm.setAttribute('action', '/admin/users/' + deleteUser.getAttribute('data-admin-delete-user') + '/delete');
      if (userTarget) userTarget.textContent = '@' + name;
      if (userInput) {
        userInput.value = '';
        userInput.setAttribute('data-confirm-input', name);
      }
      if (userSubmit) userSubmit.disabled = true;
      openDialog('admin-delete-user-dialog');
      return;
    }

    var deleteRepo = e.target.closest('[data-admin-delete-repo]');
    if (deleteRepo) {
      e.preventDefault();
      var repoName = deleteRepo.getAttribute('data-admin-delete-name') || '';
      var repoForm = document.getElementById('admin-delete-repo-form');
      var repoInput = document.getElementById('admin_delete_confirm_repo');
      var repoTarget = document.getElementById('admin-delete-repo-target');
      var repoSubmit = document.getElementById('admin-delete-repo-submit');
      if (repoForm) repoForm.setAttribute('action', '/admin/repos/' + deleteRepo.getAttribute('data-admin-delete-repo') + '/delete');
      if (repoTarget) repoTarget.textContent = repoName;
      if (repoInput) {
        repoInput.value = '';
        repoInput.setAttribute('data-confirm-input', repoName);
      }
      if (repoSubmit) repoSubmit.disabled = true;
      openDialog('admin-delete-repo-dialog');
    }
  });

  // Repo header: the description stays on the title line and expands onto its
  // own line when clicked. The avatar is sized to the title line so it always
  // sits on the same row as the repository name, at a modest size.
  var repoAvatarTimer = null;

  function sizeRepoAvatars() {
    var changed = false;
    document.querySelectorAll('.repo-banner').forEach(function (banner) {
      var avatar = banner.querySelector('.repo-avatar');
      var title = banner.querySelector('.repo-head-row nav');
      if (!avatar || !title) return;
      var h = Math.round(title.getBoundingClientRect().height);
      if (h <= 0) return;
      var size = Math.min(30, Math.max(18, h));
      var sizePx = size + 'px';
      if (avatar.style.width === sizePx) return;
      avatar.style.width = sizePx;
      avatar.style.height = sizePx;
      avatar.style.fontSize = Math.min(20, Math.max(9, Math.round(size * 0.42))) + 'px';
      changed = true;
    });
    return changed;
  }

  function updateRepoDescs() {
    document.querySelectorAll('[data-repo-desc]').forEach(function (el) {
      var banner = el.closest('.repo-banner');
      if (banner && banner.classList.contains('desc-open')) {
        el.classList.add('truncated');
        return;
      }
      el.classList.toggle('truncated', el.scrollWidth > el.clientWidth + 1);
    });
    if (sizeRepoAvatars()) {
      // Re-measure once the width transition settles: the final avatar width
      // changes the room left for the description.
      window.clearTimeout(repoAvatarTimer);
      repoAvatarTimer = window.setTimeout(sizeRepoAvatars, 300);
    }
  }

  document.addEventListener('click', function (e) {
    var desc = e.target.closest('[data-repo-desc]');
    if (!desc || !desc.classList.contains('truncated')) return;
    var banner = desc.closest('.repo-banner');
    if (!banner) return;
    banner.classList.toggle('desc-open');
    updateRepoDescs();
  });

  window.addEventListener('resize', updateRepoDescs);
  document.addEventListener('htmx:afterSwap', updateRepoDescs);
  updateRepoDescs();
})();