script.js

/** * ==========================================
 * CONFIGURATION & CUSTOMIZATION
 * Edit these values to update the app catalog behavior, branding, and notices.
 * ==========================================
 */
const CONFIG = {
  owner: "nullcpy",
  repo: "rvb",
  cacheDuration: 5, // Cache duration in minutes

  // App Categories for the top filter buttons (maps filter-btn dataset to keywords)
  appCategories: {
    google: ["youtube", "google"],
    meta: ["threads", "instagram", "messenger", "facebook"],
  },

  // Words ignored in the dynamic app filters (must be lowercase)
  sharedAppWordStoplist: new Set(["google"]),

  // Known tokens indicating a patch name starts (must be lowercase)
  knownPatchTokens: new Set(["revanced", "morphe", "anddea", "rvx"]),

  // Known tokens indicating a variant (must be lowercase)
  variantKeywords: new Set([
    "exp",
    "nord",
    "mocha",
    "privacy",
    "materialu",
    "foss",
    "gplay",
    "piko",
    "adobo",
    "patcheddit",
    "paresh",
  ]),

  // Known architectures (used for regex parsing)
  knownArchs: [
    "arm64-v8a",
    "arm64",
    "aarch64",
    "armeabi-v7a",
    "arm-v7a",
    "arm32",
    "x86_64",
    "x86",
    "universal",
    "all",
  ],

  // Brand name overrides (keys must be lowercase)
  brandOverrides: {
    youtube: "YouTube",
    revanced: "ReVanced",
    tiktok: "TikTok",
    soundcloud: "SoundCloud",
    xrecorder: "XRecorder",
    calcnote: "CalcNote",
    imdb: "IMDb",
    trakt: "trakt.TV",
    github: "GitHub",
    vpn: "VPN",
    rvx: "ReVanced Extended",
    anddea: "ReVanced Advanced",
    exp: "Experimental",
    macrodroid: "MacroDroid",
    ticktick: "TickTick",
    fing: "Fing - Network Tools",
    sdmaid: "SD Maid 2/SE",
    mocha: "Mocha Theme",
    nord: "Nord Theme",
    materialu: "Material You",
    photoshop: "Adobe Photoshop",
    lightroom: "Adobe Lightroom",
    xodo: "Xodo PDF Reader & Editor",
    hellochinese: "HelloChinese: Learn Chinese",
    gplay: "Google Play",
    foss: "FOSS",
    gboard: "Google Keyboard",
    wps: "WPS",
    rar: "RAR",
    adguard: "AdGuard",
    moonplus: "Moon+",
    eyecon: "Eyecon Caller ID & Spam Block",
    camscanner: "CamScanner",
    inshorts: "Inshorts - News in 60 words",
  },

  // Map app slugs to true Android Package IDs for Obtainium
  // Keys MUST be the fully normalized appName (lowercase, no spaces, no symbols)
  // app + patch + variant, app + patch + default, app + variant, app + default, app only
  appIds: {
    adguard: "com.adguard.android",
    adobelightroom: "com.adobe.lrmobile",
    adobephotoshopmix: "com.adobe.psmobile",
    automate: "com.llamalab.automate",
    autosync: "com.ttxapps.autosync",
    calcnote: "com.appumstudios.calcnote",
    camscanner: "com.intsig.camscanner",
    cricbuzz: "com.cricbuzz.android",
    cryptomator: "org.cryptomator",
    documentscanner: "com.cv.docscanner",
    duolingo: "com.duolingo",
    eyeconcalleridspamblock: "com.eyecon.global",
    facebook: "com.facebook.katana",
    fingnetworktools: "com.overlook.android.fing",
    googlekeyboard: "com.google.android.inputmethod.latin",
    googlenews: "com.google.android.apps.magazines",
    googlephotos: {
      revanced: "app.revanced.android.apps.photos",
      morphe: "app.morphe.android.apps.photos",
      default: "com.google.android.apps.photos",
    },
    googlerecorder: "com.google.android.apps.recorder",
    hellochineselearnchinese: "com.hellochinese",
    iconpacker: "cn.ommiao.iconpacker",
    instagram: "com.instagram.android",
    inshortsnewsin60words: "com.nis.app",
    imdb: "com.imdb.mobile",
    luminawallpapers: "com.lumina.wallpapers",
    macrodroid: "com.arlosoft.macrodroid",
    merriamwebsterdictionary: "com.merriamwebster",
    messenger: "com.facebook.orca",
    microsoftlens: "com.microsoft.office.officelens",
    moonreader: "com.flyersoft.moonreader",
    niagaralauncher: "bitpit.launcher",
    novalauncher: "com.teslacoilsw.launcher",
    pandora: "com.pandora.android",
    photomath: "com.microblink.photomath",
    pinterest: "com.pinterest",
    plusmessenger: "org.telegram.plus",
    podcastaddict: "com.bambuna.podcastaddict",
    protonmail: "ch.protonmail.android",
    protonvpn: "ch.protonvpn.android",
    reddit: "com.reddit.frontpage",
    sdmaid2se: "eu.darken.sdmse",
    showly: "com.michaldrabik.showly2",
    smartlauncher6: "ginlemon.flowerfree",
    solidexplorer: "pl.solidexplorer2",
    soundcloud: "com.soundcloud.android",
    speedtest: "org.zwanoo.android.speedtest",
    symfonium: "app.symfonik.music.player",

    // Use an object for variant-specific IDs
    telegram: {
      default: "org.telegram.messenger",
      foss: "org.telegram.messenger.web",
    },

    threads: "com.instagram.barcelona",
    ticktick: "com.ticktick.task",
    tiktok: "com.zhiliaoapp.musically",
    trakttv: "tv.trakt.trakt",
    truecaller: "com.truecaller",
    tumblr: "com.tumblr",
    twitch: "tv.twitch.android.app",
    viber: "com.viber.voip",
    ventusky: "cz.ackee.ventusky",
    wallcraft: "com.wallpaperscraft.wallpaper",
    rar: "com.rarlab.rar",
    wpsoffice: "cn.wps.moffice_eng",
    twitter: "com.twitter.android",
    xodopdfreadereditor: "com.xodo.pdf.reader",
    xrecorder: "videoeditor.videorecorder.screenrecorder",
    youtube: {
      revanced: "app.revanced.android.youtube",
      rvx: "app.rvx.android.youtube",
      anddea: "anddea.youtube",
      morphe: "app.morphe.android.youtube",
      default: "com.google.android.youtube",
    },
    youtubemusic: {
      revanced: "app.revanced.android.apps.youtube.music",
      rvx: "app.rvx.android.apps.youtube.music",
      anddea: "anddea.youtube.music",
      morphe: "app.morphe.android.apps.youtube.music",
      default: "com.google.android.apps.youtube.music",
    },
  },

  // App-specific notices to display on App Cards
  appNotices: [
    {
      triggers: ["youtube", "google"], // App name keywords that trigger this notice
      className: "microg-note", // Defines the CSS prefix
      title: "Login Issue",
      text: "Signing into Google account on APK (not Module) requires MicroG. Please install one from below before trying to sign in.",
      links: [
        {
          label: "Morphe",
          url: "https://github.com/MorpheApp/MicroG-RE/releases/latest",
        },
        {
          label: "ReVanced",
          url: "https://github.com/ReVanced/GmsCore/releases/latest",
        },
      ],
    },
    {
      triggers: ["twitter"],
      className: "twitter-login-note",
      title: "Login Issue",
      text: "Since October 2025, Twitter has started checking whether the app is modified or if the phone integrity fails during login. These checks are server-side, not client-side.",
      links: [
        { label: "Workarounds", url: "https://t.me/pikopatches/1/59772" },
      ],
    },
  ],
};

// State
let allReleases = [];
let cachedFullCatalog = [];
let searchTerm = "";
let appViewFilter = "all";
let dynamicAppFilters = [];
let currentAppCatalog = [];
let activeModalAppKey = null;
let activeModalPatchKey = null;
let modalBuildFilter = "all";
let themeMode = "system";

// Render State for Infinite Scroll
let currentVisibleCount = 0;
const RENDER_CHUNK_SIZE = 50;

const SHARED_APP_WORD_MIN_COUNT = 2;

// Caches for Memoization
const parseCache = new Map();
const tokenCache = new Map();

// Initialize
document.addEventListener("DOMContentLoaded", () => {
  setupTheme();
  setupEventListeners();

  // Pre-fill search from ?q= URL param
  const urlQuery = new URLSearchParams(window.location.search).get("q");
  if (urlQuery) {
    searchTerm = urlQuery.toLowerCase();
    const searchInput = document.getElementById("searchInput");
    searchInput.value = urlQuery;
    searchInput.closest(".search-input-wrap").classList.add("has-value");
  }

  loadReleases();
});

// Theme Management
function setupTheme() {
  const savedTheme = localStorage.getItem("theme");
  themeMode =
    savedTheme === "light" || savedTheme === "dark" || savedTheme === "system"
      ? savedTheme
      : "system";

  applyTheme(themeMode);

  const mediaQuery = window.matchMedia("(prefers-color-scheme: light)");
  mediaQuery.addEventListener("change", () => {
    if (themeMode !== "system") {
      return;
    }
    applyTheme("system");
  });
}

function applyTheme(theme) {
  const isLight =
    theme === "light"
      ? true
      : theme === "dark"
        ? false
        : window.matchMedia("(prefers-color-scheme: light)").matches;

  document.body.classList.toggle("light-mode", isLight);
  const themeBtn = document.getElementById("themeBtn");
  themeBtn.textContent =
    theme === "system" ? "🖥️" : theme === "light" ? "☀️" : "🌙";
  themeBtn.setAttribute("aria-label", `Theme mode: ${theme}`);
}

// Event Listeners
function setupEventListeners() {
  let searchTimeout;

  // Theme button
  document.getElementById("themeBtn").addEventListener("click", () => {
    const nextTheme =
      themeMode === "system"
        ? "light"
        : themeMode === "light"
          ? "dark"
          : "system";
    themeMode = nextTheme;
    localStorage.setItem("theme", nextTheme);
    applyTheme(nextTheme);
  });

  const menuBtn = document.getElementById("menuBtn");
  const actionMenu = document.getElementById("actionMenu");

  if (menuBtn && actionMenu) {
    menuBtn.addEventListener("click", (e) => {
      e.stopPropagation();
      actionMenu.classList.toggle("open");
      menuBtn.setAttribute(
        "aria-expanded",
        actionMenu.classList.contains("open"),
      );
    });

    document.addEventListener("click", (e) => {
      if (
        actionMenu.classList.contains("open") &&
        !actionMenu.contains(e.target)
      ) {
        actionMenu.classList.remove("open");
        menuBtn.setAttribute("aria-expanded", "false");
      }
    });
  }

  // 1. Debounced Search Input
  const searchInput = document.getElementById("searchInput");
  const searchWrap = searchInput.closest(".search-input-wrap");
  const searchClearBtn = document.getElementById("searchClearBtn");

  const syncClearBtn = () => {
    searchWrap.classList.toggle("has-value", searchInput.value.length > 0);
  };

  searchInput.addEventListener("input", (e) => {
    syncClearBtn();
    clearTimeout(searchTimeout);
    searchTimeout = setTimeout(() => {
      searchTerm = e.target.value.toLowerCase();

      // Sync ?q= in the URL so results are shareable
      const url = new URL(window.location);
      if (searchTerm) {
        url.searchParams.set("q", e.target.value);
      } else {
        url.searchParams.delete("q");
      }
      history.replaceState(null, "", url);

      filterAndRenderReleases();
    }, 250);
  });

  searchClearBtn.addEventListener("click", () => {
    searchInput.value = "";
    searchTerm = "";
    syncClearBtn();
    history.replaceState(null, "", location.pathname);
    filterAndRenderReleases();
  });

  searchInput.addEventListener("focus", (e) => {
    if (window.innerWidth <= 768) {
      const searchBox = e.target.closest(".search-box") || e.target;
      const y = searchBox.getBoundingClientRect().top + window.scrollY - 15;
      window.scrollTo({ top: y, behavior: "smooth" });
    }
  });

  const appFilterButtons = document.getElementById("appFilterButtons");
  if (appFilterButtons) {
    appFilterButtons.addEventListener("click", (e) => {
      const filterBtn = e.target.closest(".filter-btn");
      if (!filterBtn) return;

      appViewFilter = filterBtn.dataset.filter || "all";
      filterAndRenderReleases();
    });
  }

  document.getElementById("builds").addEventListener("click", (e) => {
    const collapsedCard = e.target.closest(".app-card:not([open])");
    if (collapsedCard && !e.target.closest(".app-card-summary")) {
      collapsedCard.open = true;
      return;
    }

    const trigger = e.target.closest(".patch-open-box");
    if (!trigger) return;

    openPatchModal(
      trigger.dataset.appKey,
      trigger.dataset.patchKey,
      trigger.dataset.filter || "all",
    );
  });

  document.getElementById("patchModal").addEventListener("click", (e) => {
    const filterBtn = e.target.closest(".modal-filter-btn");
    if (filterBtn) {
      if (filterBtn.disabled) return;
      modalBuildFilter = filterBtn.dataset.filter;
      renderOpenPatchModal();
      return;
    }

    if (e.target.id === "patchModal" || e.target.closest(".modal-close")) {
      closePatchModal();
    }
  });

  document.getElementById("obtainiumBtn").addEventListener("click", (e) => {
    e.stopPropagation();
    openObtainiumModal();
  });

  document.getElementById("obtainiumModal").addEventListener("click", (e) => {
    if (e.target.id === "obtainiumModal" || e.target.closest(".modal-close")) {
      closeObtainiumModal();
    }
  });

  document.addEventListener("keydown", (e) => {
    if (e.key === "Escape") {
      closePatchModal();
      closeObtainiumModal();
    }
  });

  // 2. Infinite Scroll Observer
  const observer = new IntersectionObserver(
    (entries) => {
      if (entries[0].isIntersecting) {
        renderNextChunk();
      }
    },
    { rootMargin: "400px" },
  );

  const sentinel = document.createElement("div");
  sentinel.id = "scroll-sentinel";
  sentinel.style.height = "1px";
  document.getElementById("builds").after(sentinel);

  observer.observe(sentinel);
}

// Fetch releases from local static cache (generated by GitHub Actions)
async function loadReleases() {
  try {
    // 1. Trigger the yellow spinning state immediately
    setPillState("checking", "Checking for updates...");

    const cached = getCachedReleases();
    if (cached) {
      allReleases = cached;
      document.getElementById("loading").style.display = "none";
      document.getElementById("error").style.display = "none";
      rebuildCatalogCache();
      updateLastUpdateTimestamp();
      filterAndRenderReleases();
      return;
    }

    document.getElementById("loading").style.display = "block";
    document.getElementById("error").style.display = "none";

    // Add a timestamp to bypass GitHub Pages CDN cache
    const cacheBuster = new Date().getTime();
    let fetchedData = null;
    let useFallback = true;

    try {
      const response = await fetch(`releases.json?v=${cacheBuster}`);
      if (response.ok) {
        const data = await response.json();
        if (Array.isArray(data) && data.length > 0) {
          fetchedData = data;
          useFallback = false;
        }
      }
    } catch (e) {
      console.warn(
        "Network error fetching releases.json (likely file:// protocol).",
        e,
      );
    }

    // Fallback to live API if releases.json is missing, empty, or fetch threw an error
    if (useFallback) {
      console.warn(
        "Static cache not found or empty. Falling back to live API...",
      );
      const response = await fetch(
        `https://api.github.com/repos/${CONFIG.owner}/${CONFIG.repo}/releases`,
        { headers: { Accept: "application/vnd.github.v3+json" } },
      );

      if (!response.ok) {
        throw new Error(`Failed to fetch data: ${response.status}`);
      }

      fetchedData = await response.json();
    }

    allReleases = fetchedData;

    cacheReleases(allReleases);
    rebuildCatalogCache();

    document.getElementById("loading").style.display = "none";
    updateLastUpdateTimestamp();
    filterAndRenderReleases();
  } catch (error) {
    console.error("Error loading releases:", error);

    // 2. Trigger the red error state if fetching fails
    setPillState("error", "Failed to check updates");

    document.getElementById("loading").style.display = "none";
    document.getElementById("error").style.display = "block";
    document.getElementById("error").textContent =
      `Failed to load releases: ${error.message}`;
  }
}

// Caching utilities for LocalStorage
function getCachedReleases() {
  const cached = localStorage.getItem("releases_cache");
  const timestamp = localStorage.getItem("releases_cache_time");

  if (!cached || !timestamp) return null;

  const age = (Date.now() - parseInt(timestamp)) / (1000 * 60);
  if (age > CONFIG.cacheDuration) {
    localStorage.removeItem("releases_cache");
    localStorage.removeItem("releases_cache_time");
    return null;
  }

  return JSON.parse(cached);
}

function cacheReleases(releases) {
  localStorage.setItem("releases_cache", JSON.stringify(releases));
  localStorage.setItem("releases_cache_time", Date.now().toString());
}

// Build and cache the full app catalog — called once when release data changes
function rebuildCatalogCache() {
  cachedFullCatalog = buildAppCatalog(allReleases.filter((r) => !r.draft));
  dynamicAppFilters = getDynamicAppFilters(cachedFullCatalog);
}

// Apply a search query to an already-built catalog without rebuilding from scratch
function filterCatalogBySearch(catalog, query) {
  if (!query) return catalog;
  return catalog
    .map((app) => ({
      app,
      score: getAppSearchScore(app.appName, query),
    }))
    .filter((item) => item.score !== Infinity)
    .sort(
      (a, b) => a.score - b.score || a.app.appName.localeCompare(b.app.appName),
    )
    .map((item) => item.app);
}

// Filter and render releases
function filterAndRenderReleases() {
  renderDynamicAppFilterButtons(dynamicAppFilters);

  if (
    appViewFilter.startsWith("word-") &&
    !dynamicAppFilters.some((filter) => filter.key === appViewFilter)
  ) {
    appViewFilter = "all";
  }

  const searchedCatalog = filterCatalogBySearch(cachedFullCatalog, searchTerm);
  const filteredApps = applyAppViewFilter(searchedCatalog);

  renderAppCards(filteredApps);
  updateAppFilterButtons();
  document.getElementById("loading").style.display = "none";
}

function updateAppFilterButtons() {
  document.querySelectorAll("#appFilterButtons .filter-btn").forEach((btn) => {
    btn.classList.toggle("active", btn.dataset.filter === appViewFilter);
  });
}

function getAppLatestPublishedAt(app) {
  return app.patches.reduce((latest, patch) => {
    const patchTime = new Date(patch.latestPublishedAt).getTime();
    return Number.isNaN(patchTime) ? latest : Math.max(latest, patchTime);
  }, 0);
}

function getAppTotalDownloads(app) {
  let total = 0;
  (app.patches || []).forEach((patch) => {
    (patch.builds || []).forEach((build) => {
      (build.assets || []).forEach((asset) => {
        total += asset.download_count || 0;
      });
    });
  });
  return total;
}

function getAppSearchScore(appName, query) {
  const normalizedQuery = normalizeForSearch(query);
  const normalizedAppName = normalizeForSearch(appName);
  if (!normalizedQuery || !normalizedAppName) return Infinity;

  if (normalizedAppName === normalizedQuery) return 0;
  if (normalizedAppName.startsWith(normalizedQuery)) return 1;

  const appTokens = getSearchTokens(appName);
  if (appTokens.length === 0) return Infinity;

  const exactTokenMatch = appTokens.some((token) => token === normalizedQuery);
  if (exactTokenMatch) return 2;

  const tokenPrefixMatch = appTokens.some((token) =>
    token.startsWith(normalizedQuery),
  );
  if (tokenPrefixMatch) return 3;

  if (normalizedAppName.includes(normalizedQuery)) return 4;

  return Infinity;
}

function applyAppViewFilter(apps) {
  if (CONFIG.appCategories[appViewFilter]) {
    return apps.filter((app) => {
      const name = normalizeForSearch(app.appName);
      return CONFIG.appCategories[appViewFilter].some((keyword) =>
        name.includes(keyword),
      );
    });
  }

  if (appViewFilter.startsWith("word-")) {
    const word = appViewFilter.slice(5);
    return apps.filter((app) => getAppNameWords(app.appName).includes(word));
  }

  if (appViewFilter === "recent") {
    return [...apps].sort(
      (a, b) => getAppLatestPublishedAt(b) - getAppLatestPublishedAt(a),
    );
  }

  if (appViewFilter === "popular") {
    return [...apps].sort(
      (a, b) => getAppTotalDownloads(b) - getAppTotalDownloads(a),
    );
  }

  return apps;
}

function buildAppCatalog(releases, query = "") {
  const normalizedQuery = normalizeForSearch(query);
  const sortedReleases = [...releases].sort(
    (a, b) => new Date(b.published_at) - new Date(a.published_at),
  );

  const appMap = new Map();

  sortedReleases.forEach((release) => {
    const isArchive =
      release.tag_name === "stable" || release.tag_name === "beta";
    let releaseType = release.prerelease ? "beta" : "stable";
    if (release.tag_name === "stable") releaseType = "stable";
    if (release.tag_name === "beta") releaseType = "beta";

    (release.assets || []).forEach((asset) => {
      const arch = detectArchitecture(asset.name);
      const fileType = getFileType(asset.name);
      const parsed = parseAssetDisplay(asset.name, arch, fileType);

      if (!assetMatchesSearch(parsed, asset, release, query, normalizedQuery)) {
        return;
      }

      const appKey = normalizeForSearch(parsed.appName);
      if (!appKey) return;

      if (!appMap.has(appKey)) {
        appMap.set(appKey, {
          appKey,
          appName: parsed.appName,
          latestStable: null,
          latestBeta: null,
          patches: new Map(),
        });
      }

      const appEntry = appMap.get(appKey);
      setLatestBuildMeta(appEntry, releaseType, release);

      const patchKey = normalizeForSearch(parsed.patchName) || "patchedbuild";
      if (!appEntry.patches.has(patchKey)) {
        appEntry.patches.set(patchKey, {
          patchKey,
          patchName: parsed.patchName,
          latestVersion: null, // Wait for a real date
          latestPublishedAt: 0,
          latestStable: null,
          latestBeta: null,
          latestVariant: null,
          latestArchiveStable: null, // NEW FALLBACK
          latestArchiveBeta: null, // NEW FALLBACK
          builds: new Map(),
        });
      }

      const patchEntry = appEntry.patches.get(patchKey);
      const buildLabel = getBuildNumberLabel(release);

      // Get the true date of the APK upload
      const buildDateString = isArchive
        ? asset.updated_at || asset.created_at || release.published_at
        : release.published_at;
      const buildDateMs = new Date(buildDateString).getTime();

      // STRICT PROTECTION: Only update the App Card timestamps if it is NOT an archive!
      if (!isArchive) {
        const patchDate = new Date(patchEntry.latestPublishedAt).getTime();

        if (buildDateMs > patchDate) {
          patchEntry.latestVersion = parsed.version;
          patchEntry.latestPublishedAt = buildDateString;
        }

        if (!parsed.variant) {
          setLatestPatchMeta(
            patchEntry,
            releaseType,
            parsed.version,
            buildLabel,
            buildDateString,
          );
        } else {
          setLatestVariantMeta(
            patchEntry,
            parsed.variant,
            parsed.version,
            buildLabel,
            buildDateString,
          );
        }
      } else {
        // FALLBACK: Quietly track the newest archive for Dead Apps
        // FIX: Only track non-variants for the generic Stable/Beta fallback boxes!
        if (!parsed.variant) {
          if (releaseType === "stable") {
            const currentMs = patchEntry.latestArchiveStable
              ? new Date(patchEntry.latestArchiveStable.publishedAt).getTime()
              : 0;
            if (buildDateMs > currentMs) {
              patchEntry.latestArchiveStable = {
                version: parsed.version,
                build: buildLabel,
                publishedAt: buildDateString,
              };
            }
          } else if (releaseType === "beta") {
            const currentMs = patchEntry.latestArchiveBeta
              ? new Date(patchEntry.latestArchiveBeta.publishedAt).getTime()
              : 0;
            if (buildDateMs > currentMs) {
              patchEntry.latestArchiveBeta = {
                version: parsed.version,
                build: buildLabel,
                publishedAt: buildDateString,
              };
            }
          }
        }
      }

      // Split archives into their own separate dropdowns based on Version!
      const buildKey = isArchive
        ? `archive-${releaseType}-${parsed.version}`
        : String(release.id);
      if (!patchEntry.builds.has(buildKey)) {
        patchEntry.builds.set(buildKey, {
          releaseId: release.id,
          build: isArchive ? parsed.version : getBuildNumberLabel(release),
          releaseType,
          isArchive, // Flag for the modal
          publishedAt: isArchive
            ? asset.updated_at || asset.created_at || release.published_at
            : release.published_at,
          releaseUrl: release.html_url,
          version: parsed.version,
          assets: [],
        });
      }

      const buildEntry = patchEntry.builds.get(buildKey);
      const exists = buildEntry.assets.some(
        (existing) => existing.name === asset.name,
      );
      if (!exists) {
        buildEntry.assets.push({
          ...asset,
          parsed,
          arch,
          fileType,
        });
      }
    });
  });

  return Array.from(appMap.values())
    .map((app) => {
      // NEW: Apply fallback dates for archive-only apps before sorting
      app.patches.forEach((patch) => {
        if (!patch.latestStable && patch.latestArchiveStable) {
          patch.latestStable = patch.latestArchiveStable;
          patch.latestStable.isArchiveFallback = true;
          const archiveMs = new Date(
            patch.latestArchiveStable.publishedAt,
          ).getTime();
          const currentMs = patch.latestPublishedAt
            ? new Date(patch.latestPublishedAt).getTime()
            : 0;
          if (archiveMs > currentMs) {
            patch.latestVersion = patch.latestArchiveStable.version;
            patch.latestPublishedAt = patch.latestArchiveStable.publishedAt;
          }
        }
        if (!patch.latestBeta && patch.latestArchiveBeta) {
          patch.latestBeta = patch.latestArchiveBeta;
          patch.latestBeta.isArchiveFallback = true;
          const archiveMs = new Date(
            patch.latestArchiveBeta.publishedAt,
          ).getTime();
          const currentMs = patch.latestPublishedAt
            ? new Date(patch.latestPublishedAt).getTime()
            : 0;
          if (archiveMs > currentMs) {
            patch.latestVersion = patch.latestArchiveBeta.version;
            patch.latestPublishedAt = patch.latestArchiveBeta.publishedAt;
          }
        }
      });

      return {
        ...app,
        patches: Array.from(app.patches.values())
          .sort(
            (a, b) =>
              new Date(b.latestPublishedAt) - new Date(a.latestPublishedAt),
          )
          .map((patch) => ({
            ...patch,
            // Sink archives to the bottom!
            builds: Array.from(patch.builds.values()).sort((a, b) => {
              // 1. If one is an archive and the other isn't, sink the archive
              if (a.isArchive && !b.isArchive) return 1;
              if (!a.isArchive && b.isArchive) return -1;

              // 2. If BOTH are archives, sort them nicely by version number (highest first)
              if (a.isArchive && b.isArchive) {
                const versionComparison = b.version.localeCompare(
                  a.version,
                  undefined,
                  { numeric: true, sensitivity: "base" },
                );
                if (versionComparison !== 0) return versionComparison;
                // If same version, sort by date (newest first)
                return new Date(b.publishedAt) - new Date(a.publishedAt);
              }

              // 3. Otherwise (normal builds), just sort by date
              return new Date(b.publishedAt) - new Date(a.publishedAt);
            }),
          })),
      };
    })
    .filter((app) => app.patches.length > 0)
    .sort((a, b) => a.appName.localeCompare(b.appName));
}

function assetMatchesSearch(parsed, asset, release, rawQuery, normalizedQuery) {
  if (!rawQuery) return true;

  return [
    parsed.appName,
    parsed.patchName,
    parsed.version,
    parsed.archLabel,
    parsed.fileType,
    asset.name,
    release.name || "",
    release.tag_name || "",
  ].some((value) =>
    matchesSearch(String(value || ""), rawQuery, normalizedQuery),
  );
}

function setLatestBuildMeta(appEntry, releaseType, release) {
  const key = releaseType === "beta" ? "latestBeta" : "latestStable";
  const current = appEntry[key];
  const currentDate = current ? new Date(current.publishedAt).getTime() : 0;
  const releaseDate = new Date(release.published_at).getTime();

  if (!current || releaseDate > currentDate) {
    appEntry[key] = {
      build: getBuildNumberLabel(release),
      publishedAt: release.published_at,
      releaseUrl: release.html_url,
    };
  }
}

function setLatestPatchMeta(
  patchEntry,
  releaseType,
  version,
  build,
  publishedAt,
) {
  const key = releaseType === "beta" ? "latestBeta" : "latestStable";
  const current = patchEntry[key];
  const currentDate = current ? new Date(current.publishedAt).getTime() : 0;
  const releaseDate = new Date(publishedAt).getTime();

  if (!current || releaseDate > currentDate) {
    patchEntry[key] = { version, build, publishedAt };
  }
}

function setLatestVariantMeta(
  patchEntry,
  variant,
  version,
  build,
  publishedAt,
) {
  const current = patchEntry.latestVariant;
  const currentDate = current ? new Date(current.publishedAt).getTime() : 0;
  const releaseDate = new Date(publishedAt).getTime();

  if (!current || releaseDate > currentDate) {
    patchEntry.latestVariant = { variant, version, build, publishedAt };
  }
}

function getBuildNumberLabel(release) {
  return String(release.tag_name || release.name || "N/A");
}

// Render app cards to DOM (Progressive Rendering)
function renderAppCards(apps) {
  const buildsContainer = document.getElementById("builds");
  currentAppCatalog = apps;
  currentVisibleCount = 0;

  buildsContainer.innerHTML = "";

  if (apps.length === 0) {
    buildsContainer.innerHTML = '<div class="no-results">No apps found.</div>';
    return;
  }

  renderNextChunk();
}

function renderNextChunk() {
  const buildsContainer = document.getElementById("builds");
  const nextChunk = currentAppCatalog.slice(
    currentVisibleCount,
    currentVisibleCount + RENDER_CHUNK_SIZE,
  );

  if (nextChunk.length === 0) return;

  const tempDiv = document.createElement("div");
  tempDiv.innerHTML = nextChunk.map((app) => createAppCard(app)).join("");

  while (tempDiv.firstChild) {
    buildsContainer.appendChild(tempDiv.firstChild);
  }

  currentVisibleCount += RENDER_CHUNK_SIZE;
}

function createNoticeMarkup(notice) {
  const linksMarkup = notice.links
    .map(
      (link) =>
        `<a href="${link.url}" target="_blank" rel="noopener noreferrer">${escapeHtml(link.label)}</a>`,
    )
    .join("\n                    ");

  return `
        <div class="app-notice ${escapeHtml(notice.className)}">
            <div class="app-notice-title">${escapeHtml(notice.title)}</div>
            <div class="app-notice-text">${escapeHtml(notice.text)}</div>
            <div class="app-notice-links">
                ${linksMarkup}
            </div>
        </div>
    `;
}

function createAppCard(app) {
  const patchesMarkup = app.patches
    .map((patch) => createPatchMarkup(app, patch))
    .join("");

  let noticesMarkup = "";
  CONFIG.appNotices.forEach((notice) => {
    const matches = notice.triggers.some((trigger) =>
      normalizeForSearch(app.appName).includes(trigger),
    );
    if (matches) {
      noticesMarkup += createNoticeMarkup(notice);
    }
  });

  return `
        <details class="build-card app-card">
            <summary class="build-header app-card-summary">
                <div class="app-name">${escapeHtml(app.appName)}</div>
                <span class="patch-count">${app.patches.length} patch${app.patches.length > 1 ? "es" : ""}</span>
            </summary>
            <div class="app-card-body">
                ${noticesMarkup}
                <div class="patches-title">Available patches</div>
                <div class="patches-list">
                    ${patchesMarkup}
                </div>
            </div>
        </details>
    `;
}

function getDynamicAppFilters(apps) {
  const wordToAppKeys = new Map();

  apps.forEach((app) => {
    const words = getAppNameWords(app.appName);
    words.forEach((word) => {
      if (!wordToAppKeys.has(word)) {
        wordToAppKeys.set(word, new Set());
      }
      wordToAppKeys.get(word).add(app.appKey);
    });
  });

  const allWordEntries = Array.from(wordToAppKeys.entries());
  return allWordEntries
    .filter(([, appKeys]) => appKeys.size >= SHARED_APP_WORD_MIN_COUNT)
    .sort((a, b) => a[0].localeCompare(b[0])) // Strictly alphabetical sort
    .map(([word]) => ({
      key: `word-${word}`,
      label: toFilterLabel(word),
    }));
}

function renderDynamicAppFilterButtons(filters) {
  const filterButtons = document.getElementById("appFilterButtons");
  if (!filterButtons) return;

  filterButtons
    .querySelectorAll(".dynamic-filter-btn")
    .forEach((btn) => btn.remove());

  filters.forEach((filter) => {
    const button = document.createElement("button");
    button.className = "filter-btn dynamic-filter-btn";
    button.dataset.filter = filter.key;
    button.type = "button";
    button.textContent = filter.label;
    filterButtons.appendChild(button);
  });

  // --- ALPHABETICAL SORTING LOGIC ---
  // 1. Grab every button inside the filter container
  const allBtns = Array.from(filterButtons.querySelectorAll(".filter-btn"));

  // 2. Separate the fixed buttons from the ones we want to sort, in exact order!
  const fixedKeys = ["all", "recent", "popular"];
  const fixedBtns = [];
  fixedKeys.forEach((key) => {
    const foundBtn = allBtns.find((btn) => btn.dataset.filter === key);
    if (foundBtn) fixedBtns.push(foundBtn);
  });

  const sortableBtns = allBtns.filter(
    (btn) => !fixedKeys.includes(btn.dataset.filter),
  );

  // 3. Sort the remaining buttons alphabetically by their text label
  sortableBtns.sort((a, b) => a.textContent.localeCompare(b.textContent));

  // 4. Re-append them to the container in the exact order we want
  fixedBtns.forEach((btn) => filterButtons.appendChild(btn));
  sortableBtns.forEach((btn) => filterButtons.appendChild(btn));
}

function getAppNameWords(appName) {
  const words = (appName || "")
    .toLowerCase()
    .split(/[^a-z0-9]+/)
    .filter(Boolean)
    .filter((word) => word.length >= 3)
    .filter((word) => !CONFIG.sharedAppWordStoplist.has(word));

  return Array.from(new Set(words));
}

function toFilterLabel(value) {
  return value.replace(/\b[a-z]/g, (char) => char.toUpperCase());
}

function getPatchTotalDownloads(patch) {
  let total = 0;
  (patch.builds || []).forEach((b) => {
    (b.assets || []).forEach((asset) => {
      total += asset.download_count || 0;
    });
  });
  return total;
}

function createPatchMarkup(app, patch) {
  const buildCount = patch.builds.length;
  const allMeta = [
    patch.latestStable,
    patch.latestBeta,
    patch.latestVariant,
  ].filter(Boolean);
  const latestBuild =
    allMeta.length > 0
      ? allMeta.reduce((a, b) =>
          new Date(a.publishedAt) > new Date(b.publishedAt) ? a : b,
        ).build
      : null;

  const boxes = [];

  if (patch.latestStable) {
    const buildMarkup = patch.latestStable.isArchiveFallback
      ? ""
      : `<span class="patch-meta-build">Build ${escapeHtml(patch.latestStable.build || "N/A")}</span>`;
    boxes.push({
      label: "Stable",
      html: `
            <button class="patch-open-box stable" data-app-key="${app.appKey}" data-patch-key="${patch.patchKey}" data-filter="stable" type="button">
                <span class="patch-meta-label">Stable</span>
                <span class="patch-meta-value">${escapeHtml(patch.latestStable.version)}</span>
                ${buildMarkup}
                <span class="patch-meta-date">${formatDate(patch.latestStable.publishedAt)}</span>
            </button>
        `,
    });
  }

  if (patch.latestBeta) {
    const buildMarkup = patch.latestBeta.isArchiveFallback
      ? ""
      : `<span class="patch-meta-build">Build ${escapeHtml(patch.latestBeta.build || "N/A")}</span>`;
    boxes.push({
      label: "Beta",
      html: `
            <button class="patch-open-box beta" data-app-key="${app.appKey}" data-patch-key="${patch.patchKey}" data-filter="beta" type="button">
                <span class="patch-meta-label">Beta</span>
                <span class="patch-meta-value">${escapeHtml(patch.latestBeta.version)}</span>
                ${buildMarkup}
                <span class="patch-meta-date">${formatDate(patch.latestBeta.publishedAt)}</span>
            </button>
        `,
    });
  }

  const variants = getUniqueVariants(patch);
  variants.forEach((variant) => {
    const latestVariantBuild = getLatestVariantBuild(patch, variant);
    if (latestVariantBuild) {
      const buildMarkup = latestVariantBuild.isArchiveFallback
        ? ""
        : `<span class="patch-meta-build">Build ${escapeHtml(latestVariantBuild.build || "N/A")}</span>`;
      boxes.push({
        label: variant,
        html: `
                <button class="patch-open-box variant" data-app-key="${app.appKey}" data-patch-key="${patch.patchKey}" data-filter="variant-${variant}" type="button">
                    <span class="patch-meta-label">${escapeHtml(variant)}</span>
                    <span class="patch-meta-value">${escapeHtml(latestVariantBuild.version)}</span>
                    ${buildMarkup}
                    <span class="patch-meta-date">${formatDate(latestVariantBuild.publishedAt)}</span>
                </button>
            `,
      });
    }
  });

  // Keep logical order: Stable -> Beta -> Variants
  const patchMetaBoxes = boxes.map((b) => b.html);

  if (patchMetaBoxes.length === 0) {
    patchMetaBoxes.push(`
            <button class="patch-open-box" data-app-key="${app.appKey}" data-patch-key="${patch.patchKey}" data-filter="all" type="button">
                <span class="patch-meta-label">Latest</span>
                <span class="patch-meta-value">${escapeHtml(patch.latestVersion)}</span>
                <span class="patch-meta-date">${formatDate(patch.latestPublishedAt)}</span>
            </button>
        `);
  }

  const buildIcon = `<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align: -1px; margin-right: 2px;"><polygon points="12 2 2 7 12 12 22 7 12 2"></polygon><polyline points="2 12 12 17 22 12"></polyline><polyline points="2 17 12 22 22 17"></polyline></svg>`;
  const buildCountBadge = `<span class="patch-build-count" title="${buildCount} Build${buildCount > 1 ? "s" : ""}">${buildIcon}${buildCount}</span>`;

  const patchDownloads = getPatchTotalDownloads(patch);
  const dlIcon = `<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align: -1px; margin-right: 2px;"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path><polyline points="7 10 12 15 17 10"></polyline><line x1="12" y1="15" x2="12" y2="3"></line></svg>`;
  const dlBadge =
    patchDownloads > 0
      ? `<span class="patch-downloads-count" title="${formatCompactNumber(patchDownloads)} Downloads">${dlIcon}${formatCompactNumber(patchDownloads)}</span>`
      : "";

  return `
        <div class="patch-entry">
            <span class="patch-trigger-left">
                <span class="patch-chip-group">
                    <span class="patch-chip">${escapeHtml(patch.patchName)}</span>
                    ${buildCountBadge}
                    ${dlBadge}
                </span>
                <span class="patch-meta-grid">
                    ${patchMetaBoxes.join("")}
                </span>
            </span>
        </div>
    `;
}

function openPatchModal(appKey, patchKey, preferredFilter = "all") {
  activeModalAppKey = appKey;
  activeModalPatchKey = patchKey;

  const app = currentAppCatalog.find((item) => item.appKey === appKey);
  const patch = app
    ? app.patches.find((item) => item.patchKey === patchKey)
    : null;
  const hasStableBuild = patch
    ? getFilteredBuildsForFilter(patch, "stable").length > 0
    : false;
  const hasBetaBuild = patch
    ? getFilteredBuildsForFilter(patch, "beta").length > 0
    : false;
  const hasVariantBuild = patch
    ? getFilteredBuildsForFilter(patch, "variant").length > 0
    : false;
  const variants = patch ? getUniqueVariants(patch) : []; // Retrieve variants list

  const prefersStable = preferredFilter === "stable" && hasStableBuild;
  const prefersBeta = preferredFilter === "beta" && hasBetaBuild;
  const prefersSpecificVariant =
    preferredFilter.startsWith("variant-") &&
    getFilteredBuildsForFilter(patch, preferredFilter).length > 0;
  const prefersGenericVariant =
    preferredFilter === "variant" && hasVariantBuild;
  const prefersVersion =
    preferredFilter.startsWith("version-") &&
    getFilteredBuildsForFilter(patch, preferredFilter).length > 0;

  if (prefersStable) {
    modalBuildFilter = "stable";
  } else if (prefersBeta) {
    modalBuildFilter = "beta";
  } else if (prefersSpecificVariant) {
    modalBuildFilter = preferredFilter;
  } else if (prefersGenericVariant) {
    modalBuildFilter =
      variants.length === 1 ? `variant-${variants[0]}` : "variant";
  } else if (prefersVersion) {
    modalBuildFilter = preferredFilter;
  } else if (hasStableBuild) {
    modalBuildFilter = "stable";
  } else if (hasBetaBuild) {
    modalBuildFilter = "beta";
  } else if (hasVariantBuild) {
    modalBuildFilter =
      variants.length === 1 ? `variant-${variants[0]}` : "variant";
  } else {
    modalBuildFilter = "all";
  }

  renderOpenPatchModal();

  const modal = document.getElementById("patchModal");
  modal.classList.add("open");
  modal.setAttribute("aria-hidden", "false");
  document.body.classList.add("modal-open");
}

function closePatchModal() {
  const modal = document.getElementById("patchModal");
  modal.classList.remove("open");
  modal.setAttribute("aria-hidden", "true");
  document.body.classList.remove("modal-open");
  activeModalAppKey = null;
  activeModalPatchKey = null;
}

function openObtainiumModal() {
  const modal = document.getElementById("obtainiumModal");
  modal.classList.add("open");
  modal.setAttribute("aria-hidden", "false");
  document.body.classList.add("modal-open");

  const body = document.getElementById("obtainiumBody");
  body.innerHTML = createObtainiumInstructions();
}

function closeObtainiumModal() {
  const modal = document.getElementById("obtainiumModal");
  modal.classList.remove("open");
  modal.setAttribute("aria-hidden", "true");
  document.body.classList.remove("modal-open");
}

function createObtainiumInstructions() {
  const repoUrl = `https://github.com/${CONFIG.owner}/${CONFIG.repo}`;
  const obtainiumLatestUrl =
    "https://github.com/ImranR98/Obtainium/releases/latest";
  const app = currentAppCatalog.find(
    (item) => item.appKey === activeModalAppKey,
  );
  const patch = app
    ? app.patches.find((item) => item.patchKey === activeModalPatchKey)
    : null;

  const filteredBuilds = patch
    ? getFilteredBuildsForFilter(patch, modalBuildFilter)
    : [];
  const fallbackBuilds = patch ? getFilteredBuildsForFilter(patch, "all") : [];
  const sourceBuilds =
    filteredBuilds.length > 0 ? filteredBuilds : fallbackBuilds;
  const patchAssets = sourceBuilds.flatMap((build) => build.assets || []);

  const regexMap = new Map();
  patchAssets
    .filter((asset) => (asset?.name || "").toLowerCase().endsWith(".apk"))
    .forEach((asset) => {
      const result = buildObtainiumRegexFromAsset(asset);
      if (!result?.regex || regexMap.has(result.regex)) return;

      const appLabel = asset?.parsed?.appName || app?.appName || "App";
      const patchLabel =
        asset?.parsed?.patchName || patch?.patchName || "patch";
      const variantLabel = asset?.parsed?.variant
        ? ` (${escapeHtml(asset.parsed.variant)})`
        : "";

      // Extract normalized slugs for patch/variant-specific app ID lookup
      const patchSlug =
        asset?.parsed?.patchSlug || normalizeForSearch(patch?.patchName || "");
      const variantSlug = asset?.parsed?.variant
        ? normalizeForSearch(asset.parsed.variant)
        : "default";

      // Save both the label and lookup keys
      regexMap.set(result.regex, {
        label: `${appLabel} ${patchLabel}${variantLabel}`,
        patchSlug: patchSlug,
        variantSlug: variantSlug,
      });
    });

  const copyCode = (text) => {
    const escaped = escapeForOnclickCopy(text);
    return `onclick="navigator.clipboard.writeText('${escaped}').then(() => { this.textContent='Copied!'; setTimeout(() => { this.textContent='Copy'; }, 2000); })" `;
  };

  const selectedExamplesMarkup =
    Array.from(regexMap.entries()).length > 0
      ? Array.from(regexMap.entries())
          .map(([regex, data]) => {
            const label = data.label;
            const patchSlug = data.patchSlug;
            const variantSlug = data.variantSlug;
            const appId = resolveObtainiumAppId(
              activeModalAppKey,
              patchSlug,
              variantSlug,
            );

            if (!appId)
              console.warn(
                `Missing App ID for: ${activeModalAppKey} (Patch: ${patchSlug}, Variant: ${variantSlug})`,
              );

            const additionalSettings = { apkFilterRegEx: regex };
            if (modalBuildFilter === "beta") {
              additionalSettings.includePrereleases = true;
            }

            // Conditionally generate the Obtainium button HTML
            let obtainiumButtonHtml = "";
            if (appId) {
              const obtainiumConfig = {
                id: appId,
                name: label,
                author: CONFIG.owner,
                url: repoUrl,
                additionalSettings: JSON.stringify(additionalSettings),
              };
              const oneClickUrl = `https://apps.obtainium.imranr.dev/redirect?r=${encodeURIComponent("obtainium://app/" + JSON.stringify(obtainiumConfig))}`;
              obtainiumButtonHtml = `<a href="${oneClickUrl}" class="copy-btn obtainium-add-btn" target="_blank" rel="noopener noreferrer">Add to Obtainium</a>`;
            }

            return `
                    <div class="example">
                        <strong>${escapeHtml(label)}</strong>
                        <div class="code-with-copy ${appId ? "" : "no-obtainium"}">
                            <code>${escapeHtml(regex)}</code>
                            ${obtainiumButtonHtml}
                            <button type="button" class="copy-btn" ${copyCode(regex)}>Copy</button>
                        </div>
                    </div>`;
          })
          .join("")
      : `
                    <div class="example">
                        <strong>No APK URLs found for this patch.</strong>
                    </div>`;

  const betaPrereleaseStepMarkup =
    modalBuildFilter === "beta" ? "<li>Enable include prereleases.</li>" : "";

  const variantStepMarkup = modalBuildFilter.startsWith("variant")
    ? "<li>To get beta updates enable include prereleases.</li>"
    : "";

  return `
        <div class="obtainium-instructions">
            <ol>
                <li>Download and install Obtainium from <a href="${obtainiumLatestUrl}" target="_blank" rel="noopener noreferrer">GitHub</a>.</li>
                <li>Open Obtainium on your device.</li>
                <li>Tap Add app.</li>
                <li>In the app source URL box, enter:
                    <div class="instruction-code">
                        <code>${escapeHtml(repoUrl)}</code>
                        <button type="button" class="copy-btn" ${copyCode(repoUrl)}>Copy</button>
                    </div>
                </li>
                <li>Scroll down to filter APKs by regular expression and enter regex for the APK you want:
                    <div class="filter-examples">
                        ${selectedExamplesMarkup}
                    </div>
                </li>
                ${betaPrereleaseStepMarkup}
                ${variantStepMarkup}
                <li>Tap add to begin downloading. In future, Obtainium will automatically fetch updates when new releases are published.</li>
            </ol>
        </div>
    `;
}

function buildObtainiumRegexFromAsset(asset) {
  if (!asset || !asset.name) return null;

  const assetName = asset.name;
  if (!assetName.toLowerCase().endsWith(".apk")) return null;

  const nameWithoutExt = assetName.replace(/\.apk$/i, "");
  const arch = extractArchFromAssetName(nameWithoutExt);
  const nameWithoutArch = arch
    ? nameWithoutExt.replace(new RegExp(`-${escapeRegex(arch)}$`, "i"), "")
    : nameWithoutExt;

  let baseName = nameWithoutArch;

  // Use the highly accurate version string we already extracted during parsing
  if (
    asset.parsed &&
    asset.parsed.version &&
    asset.parsed.version !== "Version unknown"
  ) {
    const versionIndex = nameWithoutArch.lastIndexOf(
      `-${asset.parsed.version}`,
    );
    if (versionIndex !== -1) {
      baseName = nameWithoutArch.substring(0, versionIndex);
    }
  } else {
    // Fallback for edge cases: Requires a dot in the version to prevent false positives like "-6"
    baseName = nameWithoutArch
      .replace(/-v?\d+(?:\.\d+)[\w.-]*$/i, "")
      .replace(/-+$/g, "");
  }

  if (!baseName) return null;

  // Generate the strict Obtainium regex
  const regex = `^${escapeRegex(baseName)}-v?\\d.*\\.apk$`;
  return { regex, arch, assetName };
}

function extractArchFromAssetName(nameWithoutExt) {
  const lowerName = (nameWithoutExt || "").toLowerCase();
  return (
    CONFIG.knownArchs.find((arch) => lowerName.endsWith(`-${arch}`)) || null
  );
}

function escapeRegex(value) {
  return String(value || "").replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}

function escapeForOnclickCopy(value) {
  return String(value || "")
    .replace(/\\/g, "\\\\")
    .replace(/'/g, "\\'");
}

function resolveObtainiumAppId(appKey, patchSlug, variantSlug) {
  const appConfig = CONFIG.appIds[appKey];
  if (!appConfig) return null;

  if (typeof appConfig === "string") {
    return appConfig;
  }

  if (typeof appConfig !== "object") {
    return null;
  }

  const normalizedPatchSlug = normalizeForSearch(patchSlug || "");
  const normalizedVariantSlug =
    normalizeForSearch(variantSlug || "default") || "default";

  const patchConfig = normalizedPatchSlug
    ? appConfig[normalizedPatchSlug]
    : null;
  if (typeof patchConfig === "string") {
    return patchConfig;
  }
  if (typeof patchConfig === "object" && patchConfig !== null) {
    return patchConfig[normalizedVariantSlug] || patchConfig.default || null;
  }

  return appConfig[normalizedVariantSlug] || appConfig.default || null;
}

function renderOpenPatchModal() {
  if (!activeModalAppKey || !activeModalPatchKey) return;

  const app = currentAppCatalog.find(
    (item) => item.appKey === activeModalAppKey,
  );
  if (!app) return;

  const patch = app.patches.find(
    (item) => item.patchKey === activeModalPatchKey,
  );
  if (!patch) return;

  const body = document.getElementById("patchModalBody");
  const title = document.getElementById("patchModalTitle");
  title.textContent = `${app.appName} • ${patch.patchName}`;

  updateModalFilterButtons(patch);
  body.innerHTML = createPatchModalContent(patch, modalBuildFilter);
}

function getUniqueVariants(patch) {
  const variants = new Set();
  (patch.builds || []).forEach((build) => {
    (build.assets || []).forEach((asset) => {
      if (asset?.parsed?.variant) {
        variants.add(asset.parsed.variant);
      }
    });
  });
  return Array.from(variants).sort();
}

function getUniqueVersions(patch) {
  const versions = new Set();
  (patch.builds || []).forEach((build) => {
    (build.assets || []).forEach((asset) => {
      if (asset?.parsed?.version) {
        versions.add(asset.parsed.version);
      }
    });
  });

  // OPTIMIZATION: Semantic version sorting using natural numeric collation.
  // Correctly sorts "v11.80" as newer than "v9.80".
  return Array.from(versions).sort((a, b) =>
    b.localeCompare(a, undefined, { numeric: true, sensitivity: "base" }),
  );
}

function getLatestVariantBuild(patch, variantName) {
  let latestNormal = null;
  let latestArchive = null;
  let latestNormalDate = 0;
  let latestArchiveDate = 0;

  (patch.builds || []).forEach((build) => {
    const variantAsset = (build.assets || []).find(
      (asset) => asset?.parsed?.variant === variantName,
    );
    if (variantAsset) {
      const buildDate = new Date(build.publishedAt).getTime();

      if (!build.isArchive) {
        if (buildDate > latestNormalDate) {
          latestNormalDate = buildDate;
          latestNormal = {
            version: variantAsset.parsed.version,
            build: build.build,
            publishedAt: build.publishedAt,
            isArchiveFallback: false,
          };
        }
      } else {
        if (buildDate > latestArchiveDate) {
          latestArchiveDate = buildDate;
          latestArchive = {
            version: variantAsset.parsed.version,
            build: build.build,
            publishedAt: build.publishedAt,
            isArchiveFallback: true,
          };
        }
      }
    }
  });

  return latestNormal || latestArchive;
}

function updateModalFilterButtons(patch = null) {
  const hasStableBuild = patch
    ? getFilteredBuildsForFilter(patch, "stable").length > 0
    : true;
  const hasBetaBuild = patch
    ? getFilteredBuildsForFilter(patch, "beta").length > 0
    : true;
  const hasVariantBuild = patch
    ? getFilteredBuildsForFilter(patch, "variant").length > 0
    : false;
  const variants = patch ? getUniqueVariants(patch) : [];

  const showGenericVariant = hasVariantBuild && variants.length > 1;

  const versions = patch ? getUniqueVersions(patch).slice(0, 5) : [];

  const activeTypesCount =
    (hasStableBuild ? 1 : 0) +
    (hasBetaBuild ? 1 : 0) +
    (hasVariantBuild ? 1 : 0);

  if (
    modalBuildFilter === "variant" &&
    hasVariantBuild &&
    variants.length === 1
  ) {
    modalBuildFilter = `variant-${variants[0]}`;
  }

  if (modalBuildFilter === "all" && activeTypesCount <= 1) {
    modalBuildFilter = hasStableBuild
      ? "stable"
      : hasBetaBuild
        ? "beta"
        : hasVariantBuild
          ? variants.length === 1
            ? `variant-${variants[0]}`
            : "variant"
          : "all";
  } else if (modalBuildFilter === "stable" && !hasStableBuild) {
    modalBuildFilter = hasBetaBuild
      ? "beta"
      : hasVariantBuild
        ? variants.length === 1
          ? `variant-${variants[0]}`
          : "variant"
        : "all";
  } else if (modalBuildFilter === "beta" && !hasBetaBuild) {
    modalBuildFilter = hasStableBuild
      ? "stable"
      : hasVariantBuild
        ? variants.length === 1
          ? `variant-${variants[0]}`
          : "variant"
        : "all";
  } else if (modalBuildFilter === "variant" && !showGenericVariant) {
    modalBuildFilter = hasStableBuild
      ? "stable"
      : hasBetaBuild
        ? "beta"
        : "all";
  } else if (modalBuildFilter.startsWith("variant-") && !hasVariantBuild) {
    modalBuildFilter = hasStableBuild
      ? "stable"
      : hasBetaBuild
        ? "beta"
        : "all";
  } else if (modalBuildFilter.startsWith("version-")) {
    const activeVersion = modalBuildFilter.slice(8);
    if (
      !versions.includes(activeVersion) ||
      getFilteredBuildsForFilter(patch, modalBuildFilter).length === 0
    ) {
      modalBuildFilter = hasStableBuild
        ? "stable"
        : hasBetaBuild
          ? "beta"
          : hasVariantBuild
            ? variants.length === 1
              ? `variant-${variants[0]}`
              : "variant"
            : "all";
    }
  }

  document.querySelectorAll(".modal-filter-btn").forEach((btn) => {
    const filter = btn.dataset.filter;

    if (!["all", "stable", "beta", "variant"].includes(filter)) return;

    let available = false;
    if (filter === "all") available = activeTypesCount > 1;
    else if (filter === "stable") available = hasStableBuild;
    else if (filter === "beta") available = hasBetaBuild;
    else if (filter === "variant") available = showGenericVariant;

    btn.style.display = available ? "" : "none";
    btn.disabled = !available;
    btn.classList.toggle("active", available && filter === modalBuildFilter);
  });

  const filterButtonsContainer = document.querySelector(
    ".modal-filter-buttons",
  );

  if (filterButtonsContainer) {
    filterButtonsContainer
      .querySelectorAll(".variant-btn, .version-btn")
      .forEach((btn) => btn.remove());

    if (variants.length > 0) {
      variants.forEach((variant) => {
        const btn = document.createElement("button");
        btn.type = "button";
        btn.className = "modal-filter-btn variant-btn";
        btn.dataset.filter = `variant-${variant}`;
        btn.textContent = variant;
        btn.disabled = false;
        btn.classList.toggle(
          "active",
          `variant-${variant}` === modalBuildFilter,
        );
        filterButtonsContainer.appendChild(btn);
      });
    }

    if (versions.length > 1) {
      versions.forEach((version) => {
        const btn = document.createElement("button");
        btn.type = "button";
        btn.className = "modal-filter-btn version-btn";
        btn.dataset.filter = `version-${version}`;
        btn.textContent = version;
        btn.disabled = false;
        btn.classList.toggle(
          "active",
          `version-${version}` === modalBuildFilter,
        );
        filterButtonsContainer.appendChild(btn);
      });
    }
  }
}

function createPatchModalContent(patch, buildFilter = "all") {
  const builds = getFilteredBuildsForFilter(patch, buildFilter);

  if (builds.length === 0) {
    return '<div class="no-results">No builds in this filter.</div>';
  }

  return builds
    .map((build, index) => createModalBuildMarkup(build, index === 0))
    .join("");
}

function getFilteredBuildsForFilter(patch, buildFilter = "all") {
  return (patch.builds || [])
    .map((build) => ({
      ...build,
      assets: getFilteredAssets(build, buildFilter),
    }))
    .filter((build) => build.assets.length > 0);
}

function getFilteredAssets(build, buildFilter) {
  const assets = build.assets || [];

  if (buildFilter === "stable") {
    if (build.releaseType !== "stable") return [];
    return assets.filter((asset) => !isVariantAsset(asset));
  }

  if (buildFilter === "beta") {
    if (build.releaseType !== "beta") return [];
    return assets.filter((asset) => !isVariantAsset(asset));
  }

  if (buildFilter === "variant") {
    return assets.filter((asset) => isVariantAsset(asset));
  }

  if (buildFilter.startsWith("variant-")) {
    const variantName = buildFilter.slice(8);
    return assets.filter((asset) => asset?.parsed?.variant === variantName);
  }

  if (buildFilter.startsWith("version-")) {
    const version = buildFilter.slice(8);
    return assets.filter((asset) => asset?.parsed?.version === version);
  }

  return assets;
}

function isVariantAsset(asset) {
  return Boolean(asset?.parsed?.variant);
}

function createModalBuildMarkup(build, openByDefault = false) {
  const assetsByArch = groupAssetsByArchitecture(build.assets);

  const buildBadgeClass =
    build.releaseType === "beta" ? "prerelease" : "stable";
  const badgeText = build.releaseType === "beta" ? "Beta" : "Stable";

  const archiveBadgeMarkup = build.isArchive
    ? '<span class="release-badge archive">Archive</span>'
    : "";
  const titleText = build.isArchive
    ? escapeHtml(build.build)
    : `Build ${escapeHtml(build.build)}`;

  const hasVariantAssets = build.assets.some((asset) => isVariantAsset(asset));
  let downloadsMarkup = "";

  const uniqueBuildVersions = Array.from(
    new Set(build.assets.map((a) => a.parsed?.version).filter(Boolean)),
  ).join(" / ");

  // Remove the app version string from the date line if it is an archive
  const dateText = build.isArchive
    ? formatDate(build.publishedAt)
    : `${formatDate(build.publishedAt)} • ${escapeHtml(uniqueBuildVersions)}`;

  Object.entries(assetsByArch).forEach(([arch, assets]) => {
    if (assets.length === 0) return;

    downloadsMarkup += `<div class="asset-group"><div class="asset-group-label">${capitalizeArch(arch)}</div>`;
    assets.forEach((asset) => {
      const sizeStr = formatBytes(asset.size);

      const downloads = formatCompactNumber(asset.download_count || 0);

      const variantBadge = asset.parsed.variant
        ? `<span class="variant-badge">${escapeHtml(asset.parsed.variant)}</span>`
        : "";
      downloadsMarkup += `
                <a href="${asset.browser_download_url}"
                   class="download-btn ${arch}"
                   download
                   title="${asset.name}">
                    <span class="asset-left">
                        <span class="asset-title">${escapeHtml(asset.parsed.appName)}</span>
                        <span class="asset-subtitle">${escapeHtml(asset.parsed.patchName)} • ${escapeHtml(asset.parsed.version)}</span>
                    </span>
                    <span class="asset-right">
                        ${variantBadge}
                        <span class="btn-text">${escapeHtml(asset.parsed.archLabel)} • ${asset.fileType} • ${sizeStr} • ${downloads}</span>
                    </span>
                </a>`;
    });
    downloadsMarkup += `</div>`;
  });

  const modalBadges = [];
  if (build.isArchive) {
    modalBadges.push({
      label: "Archive",
      html: '<span class="release-badge archive">Archive</span>',
    });
  }
  modalBadges.push({
    label: badgeText,
    html: `<span class="release-badge ${buildBadgeClass}">${badgeText}</span>`,
  });
  if (hasVariantAssets) {
    modalBadges.push({
      label: "Variant",
      html: '<span class="variants-indicator">Variant</span>',
    });
  }

  // Sort the small pill badges alphabetically (Archive -> Beta/Stable -> Variant)
  modalBadges.sort((a, b) => a.label.localeCompare(b.label));
  const badgeGroupMarkup = modalBadges
    .map((b) => b.html)
    .join("\n                    ");

  return `
        <details class="modal-build-card" ${openByDefault ? "open" : ""}>
            <summary class="modal-build-header">
                <div class="modal-build-header-left">
                    <div class="modal-build-title">${titleText}</div>
                    <div class="modal-build-date">${dateText}</div>
                </div>
                <span class="badge-group">
                    ${badgeGroupMarkup}
                </span>
            </summary>
            <div class="modal-build-downloads">
                ${downloadsMarkup || '<p style="color: var(--text-secondary); font-size: 0.9rem;">No downloads available</p>'}
                <a href="${build.releaseUrl}" target="_blank" class="release-link patch-release-link">View source release →</a>
            </div>
        </details>
    `;
}

function groupAssetsByArchitecture(assets) {
  const groups = {
    arm64: [],
    arm32: [],
    universal: [],
    x86: [],
    other: [],
  };

  assets.forEach((asset) => {
    const detectedArch = detectArchitecture(asset.name);
    groups[detectedArch].push(asset);
  });

  const filtered = {};
  ["arm64", "arm32", "universal", "x86", "other"].forEach((arch) => {
    if (groups[arch].length > 0) {
      const sorted = groups[arch].sort((a, b) => {
        const aIsApk = a.name.toLowerCase().endsWith(".apk") ? 0 : 1;
        const bIsApk = b.name.toLowerCase().endsWith(".apk") ? 0 : 1;
        return aIsApk - bIsApk;
      });
      filtered[arch] = sorted;
    }
  });

  return filtered;
}

function getFileType(filename) {
  const lower = filename.toLowerCase();
  if (lower.endsWith(".apk")) return "APK";
  if (lower.endsWith(".zip")) return "Module";
  return "File";
}

function detectArchitecture(filename) {
  const name = (filename || "").toLowerCase();
  if (
    name.includes("arm64") ||
    name.includes("aarch64") ||
    name.includes("arm64-v8a")
  )
    return "arm64";
  if (
    (name.includes("arm") && !name.includes("arm64")) ||
    name.includes("arm-v7a") ||
    name.includes("armeabi")
  )
    return "arm32";
  if (
    name.includes("universal") ||
    name.includes("-all.") ||
    /^(?!.*arm|x86|x64|i386)[^-]*\.apk$/.test(name)
  )
    return "universal";
  if (name.includes("x86_64") || name.includes("x64") || name.includes("x86"))
    return "x86";
  return "other";
}

// Cached Parsing Logic
function parseAssetDisplay(filename, arch, fileType) {
  if (parseCache.has(filename)) {
    return parseCache.get(filename);
  }

  const baseName = filename.replace(/\.(apk|zip)$/i, "");
  const tokens = baseName.split("-").filter(Boolean);
  const archSubTokens = new Set(CONFIG.knownArchs.flatMap((a) => a.split("-")));
  const versionIndex = tokens.findIndex(
    (token) => /^v\d+/i.test(token) && !archSubTokens.has(token.toLowerCase()),
  );
  const moduleIndex = tokens.findIndex(
    (token) => token.toLowerCase() === "module",
  );
  const stopIndexCandidates = [versionIndex, moduleIndex].filter(
    (index) => index >= 0,
  );
  const stopIndex =
    stopIndexCandidates.length > 0
      ? Math.min(...stopIndexCandidates)
      : tokens.length;
  const preMetaTokens = tokens.slice(0, stopIndex);

  const knownPatchTokens = CONFIG.knownPatchTokens;
  const variantKeywords = CONFIG.variantKeywords;

  let patchStartIndex = preMetaTokens.findIndex((token) =>
    knownPatchTokens.has(token.toLowerCase()),
  );
  if (patchStartIndex < 0) {
    patchStartIndex = Math.max(preMetaTokens.length - 1, 0);
  }

  const appTokens = preMetaTokens.slice(0, patchStartIndex);
  let patchTokens = preMetaTokens.slice(patchStartIndex);

  let variant = null;
  while (
    patchTokens.length > 1 &&
    variantKeywords.has(patchTokens[patchTokens.length - 1].toLowerCase())
  ) {
    variant = patchTokens[patchTokens.length - 1];
    patchTokens = patchTokens.slice(0, -1);
  }

  let version = "Version unknown";
  if (versionIndex >= 0) {
    const versionParts = [tokens[versionIndex]];
    for (let i = versionIndex + 1; i < tokens.length; i++) {
      const t = tokens[i].toLowerCase();
      const isArchToken = CONFIG.knownArchs.some((a) =>
        a.split("-").includes(t),
      );
      if (t === "module" || t === "universal" || isArchToken) {
        break;
      }
      versionParts.push(tokens[i]);
    }
    version = versionParts.join("-");
  }
  const appSlug = (appTokens.length > 0 ? appTokens : preMetaTokens)
    .join("-")
    .toLowerCase();
  const patchSlug = (
    patchTokens.length > 0 ? patchTokens : ["patched", "build"]
  )
    .join("-")
    .toLowerCase();

  const result = {
    appName: formatBrandDisplayName(
      appTokens.length > 0
        ? appTokens.join(" ")
        : preMetaTokens.join(" ") || baseName,
    ),
    patchName: formatBrandDisplayName(
      patchTokens.length > 0 ? patchTokens.join(" ") : "Patched Build",
    ),
    appSlug,
    patchSlug,
    variant: variant ? formatBrandDisplayName(variant) : null,
    version,
    archLabel: formatArchitectureLabel(arch, fileType),
    fileType,
  };

  parseCache.set(filename, result);
  return result;
}

function toTitleWords(value) {
  return (value || "")
    .replace(/\s+/g, " ")
    .trim()
    .replace(/\b\w/g, (char) => char.toUpperCase());
}

function formatBrandDisplayName(value) {
  return toTitleWords(value)
    .split(" ")
    .map((token) => CONFIG.brandOverrides[token.toLowerCase()] || token)
    .join(" ");
}

function formatArchitectureLabel(arch, fileType) {
  const labels = {
    arm64: "ARM64",
    arm32: "ARM32",
    universal: "Universal",
    x86: "x86/x64",
    other: fileType,
  };
  return labels[arch] || arch.toUpperCase();
}

function capitalizeArch(arch) {
  const map = {
    arm64: "ARM64",
    arm32: "ARM32",
    universal: "Universal",
    x86: "X86",
    other: "Other",
  };
  return map[arch] || arch;
}

function formatBytes(bytes) {
  if (bytes === 0) return "0 B";
  const k = 1024,
    sizes = ["B", "KB", "MB", "GB"];
  const i = Math.floor(Math.log(bytes) / Math.log(k));
  return Math.round((bytes / Math.pow(k, i)) * 100) / 100 + " " + sizes[i];
}

function formatCompactNumber(n) {
  if (n >= 1_000_000)
    return (
      (n / 1_000_000).toFixed(n % 1_000_000 === 0 ? 0 : 1).replace(/\.0$/, "") +
      "M"
    );
  if (n >= 1_000)
    return (
      (n / 1_000).toFixed(n % 1_000 === 0 ? 0 : 1).replace(/\.0$/, "") + "k"
    );
  return String(n);
}

function formatDate(value) {
  return new Date(value).toLocaleDateString("en-US", {
    year: "numeric",
    month: "short",
    day: "numeric",
  });
}

function normalizeForSearch(value) {
  return (value || "").toLowerCase().replace(/[^a-z0-9]/g, "");
}

function matchesSearch(value, rawQuery, normalizedQuery) {
  const lowerValue = (value || "").toLowerCase();
  const normalizedValue = normalizeForSearch(lowerValue);

  if (lowerValue.includes(rawQuery)) return true;
  if (!normalizedQuery) return false;
  if (normalizedValue.includes(normalizedQuery)) return true;
  if (normalizedQuery.length < 4) return false;

  const queryTokens = getSearchTokens(rawQuery);
  const valueTokens = getSearchTokens(lowerValue);

  if (queryTokens.length === 0 || valueTokens.length === 0) return false;

  return queryTokens.every((queryToken) =>
    valueTokens.some((valueToken) => tokensFuzzyMatch(queryToken, valueToken)),
  );
}

// Cached Search Tokens
function getSearchTokens(value) {
  if (tokenCache.has(value)) {
    return tokenCache.get(value);
  }
  const tokens = (value || "")
    .toLowerCase()
    .split(/[^a-z0-9]+/)
    .filter(Boolean);
  tokenCache.set(value, tokens);
  return tokens;
}

function tokensFuzzyMatch(queryToken, valueToken) {
  if (!queryToken || !valueToken) return false;
  if (valueToken.includes(queryToken)) return true;
  if (queryToken.length < 3) return false;
  const maxDistance = getMaxEditDistance(queryToken.length);
  return isWithinEditDistance(queryToken, valueToken, maxDistance);
}

function getMaxEditDistance(length) {
  if (length <= 4) return 1;
  if (length <= 8) return 2;
  return 3;
}

function isWithinEditDistance(a, b, maxDistance) {
  if (Math.abs(a.length - b.length) > maxDistance) return false;

  const bLength = b.length;
  let previousRow = new Array(bLength + 1);
  for (let j = 0; j <= bLength; j++) previousRow[j] = j;

  for (let i = 1; i <= a.length; i++) {
    const currentRow = new Array(bLength + 1);
    currentRow[0] = i;
    let rowMin = currentRow[0];

    for (let j = 1; j <= bLength; j++) {
      const cost = a[i - 1] === b[j - 1] ? 0 : 1;
      currentRow[j] = Math.min(
        previousRow[j] + 1,
        currentRow[j - 1] + 1,
        previousRow[j - 1] + cost,
      );
      if (currentRow[j] < rowMin) rowMin = currentRow[j];
    }

    if (rowMin > maxDistance) return false;
    previousRow = currentRow;
  }

  return previousRow[bLength] <= maxDistance;
}

function escapeHtml(text) {
  return String(text ?? "")
    .replace(/&/g, "&amp;")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;")
    .replace(/"/g, "&quot;")
    .replace(/'/g, "&#39;");
}

// Update the last updated timestamp based on the newest release
function updateLastUpdateTimestamp() {
  if (!allReleases || allReleases.length === 0) {
    setPillState("success", "No releases found");
    return;
  }

  const latestTime = allReleases.reduce((max, release) => {
    const t = new Date(release.published_at).getTime();
    return t > max ? t : max;
  }, 0);

  if (latestTime === 0) return;

  const dateStr = new Date(latestTime).toLocaleString("en-US", {
    day: "numeric",
    month: "long",
    year: "numeric",
    hour: "numeric",
    minute: "2-digit",
  });
  setPillState("success", dateStr);
}

// Manages the visual state of the Update Pill (No click events)
function setPillState(state, text) {
  const textEl = document.getElementById("lastUpdateText");
  if (!textEl) return;

  const pill = textEl.closest(".update-pill");
  if (!pill) return;

  // Remove old colors and apply the new one
  pill.classList.remove("checking", "error", "success");
  pill.classList.add(state);
  textEl.textContent = text;

  // Swap the SVG icon to match the state
  const svgContainer = pill.querySelector("svg");
  if (!svgContainer) return;

  if (state === "checking") {
    svgContainer.innerHTML =
      '<path d="M21.5 2v6h-6M2.5 22v-6h6M2 11.5a10 10 0 0 1 18.8-4.3M22 12.5a10 10 0 0 1-18.8 4.3"/>';
    svgContainer.classList.add("spin");
  } else if (state === "error") {
    svgContainer.innerHTML =
      '<circle cx="12" cy="12" r="10"></circle><line x1="15" y1="9" x2="9" y2="15"></line><line x1="9" y1="9" x2="15" y2="15"></line>';
    svgContainer.classList.remove("spin");
  } else if (state === "success") {
    svgContainer.innerHTML =
      '<path d="M22 11.08V12a10 10 0 1 1-5.93-9.14"></path><polyline points="22 4 12 14.01 9 11.01"></polyline>';
    svgContainer.classList.remove("spin");
  }
}