export const LIBRARY_CATEGORIES = [
  { id: "games", label: "Games" },
  { id: "software", label: "Software" },
  { id: "unified", label: "Unified Library" },
];

export const GENRE_FILTERS = [
  "All Genres",
  "Action",
  "RPG",
  "Strategy",
  "Indie",
  "Latest Installed",
  "Recently Played",
];

export const PLATFORM_FILTERS = ["all", "steam", "gog", "epic", "native", "emulated", "other"];

export const SORT_OPTIONS = [
  { id: "recentlyPlayed", label: "Recently played" },
  { id: "recentlyInstalled", label: "Recently installed" },
  { id: "alphabetical", label: "Alphabetical" },
  { id: "playtime", label: "Playtime" },
  { id: "platform", label: "Platform" },
];

export const SOURCE_LABELS = {
  steam: "Steam",
  gog: "GOG",
  epic: "Epic",
  native: "Native",
  emulated: "Emulated",
  other: "Other",
};

export const TYPE_LABELS = {
  game: "Game",
  software: "Software",
  tool: "Tool",
  launcher: "Launcher",
};

export const PLAY_STATE_LABELS = {
  all: "All play states",
  played: "Played",
  unplayed: "Unplayed",
};

export const createDefaultLibraryQuery = () => ({
  category: "games",
  genre: "All Genres",
  platform: "all",
  installedOnly: false,
  playState: "all",
  coOpOnly: false,
  achievementsOnly: false,
  sortBy: "recentlyPlayed",
  includeHidden: false,
});

const sourceFromBackend = (source) => {
  const normalized = String(source ?? "").toLowerCase();
  if (normalized === "local") return "native";
  if (["steam", "gog", "epic", "native", "emulated"].includes(normalized)) return normalized;
  return "other";
};

const typeFromBackend = (kind) => {
  const normalized = String(kind ?? "").toLowerCase();
  if (["game", "software", "tool", "launcher"].includes(normalized)) return normalized;
  return "game";
};

export const initialsForTitle = (title) =>
  String(title ?? "Nebula")
    .split(/\s+/)
    .filter(Boolean)
    .slice(0, 2)
    .map((part) => part[0]?.toUpperCase())
    .join("") || "OS";

export const formatPlaytime = (minutes = 0) => {
  if (!minutes) return "Not played";
  if (minutes < 60) return `${minutes}m`;
  const hours = Math.floor(minutes / 60);
  const remainder = minutes % 60;
  return remainder ? `${hours}h ${remainder}m` : `${hours}h`;
};

export const formatShortDate = (value) => {
  if (!value) return "Never";
  const date = new Date(value);
  if (Number.isNaN(date.getTime())) return "Never";
  return date.toLocaleDateString([], { month: "short", day: "numeric" });
};

export const normalizeLibraryItem = (raw, index = 0, convertFileSrc = null) => {
  const title = raw?.userTitle || raw?.title || "Unknown App";
  const source = sourceFromBackend(raw?.platformSource ?? raw?.source);
  const type = typeFromBackend(raw?.appKind ?? raw?.type);
  const convert = (path) => (path && convertFileSrc ? convertFileSrc(path) : path || null);
  const convertArray = (paths) => (Array.isArray(paths) ? paths.map(convert).filter(Boolean) : []);
  const installed = raw?.installed ?? Boolean(raw?.installPath || raw?.install_path);

  return {
    id: String(raw?.id ?? `backend-${index}`),
    backendId: raw?.id ?? null,
    title,
    type,
    source,
    genre: Array.isArray(raw?.genre)
      ? raw.genre
      : Array.isArray(raw?.genres)
        ? raw.genres
        : type === "game"
          ? ["Action"]
          : ["Utilities"],
    installed,
    installPath: raw?.installPath ?? raw?.install_path ?? null,
    executablePath: raw?.executablePath ?? raw?.executable_path ?? null,
    coverImage: convert(raw?.coverImage ?? raw?.cover_image),
    bannerImage: convert(raw?.bannerImage ?? raw?.heroImage ?? raw?.hero_image),
    iconImage: convert(raw?.iconImage ?? raw?.icon_image),
    screenshots: convertArray(raw?.screenshots ?? []),
    description:
      raw?.description ||
      "Scanned from your local library. Metadata can be enriched later by Steam, GOG, Epic, emulator, and local metadata providers.",
    longDescription: raw?.longDescription ?? null,
    lastPlayed: raw?.lastPlayed ?? null,
    installedAt: raw?.installedAt ?? raw?.createdAt ?? null,
    playtimeMinutes: Number(raw?.playtimeMinutes ?? 0),
    supportsController: Boolean(raw?.supportsController ?? type === "game"),
    steamDeckVerified: Boolean(raw?.steamDeckVerified ?? source === "steam"),
    achievementsSupported: Boolean(raw?.achievementsSupported ?? false),
    achievementsUnlocked: raw?.achievementsUnlocked ?? null,
    achievementsTotal: raw?.achievementsTotal ?? null,
    hidden: Boolean(raw?.hidden ?? raw?.userHidden ?? false),
    multiplayer: Boolean(raw?.multiplayer ?? false),
    coOp: Boolean(raw?.coOp ?? false),
    accent: raw?.accent ?? ["#4fd8ff", "#9d4fe0", "#1f7aff", "#39ffd2"][index % 4],
  };
};

export const createMockLibraryItems = () =>
  [
    {
      id: "mock-starfall",
      title: "Starfall Protocol",
      type: "game",
      source: "steam",
      genre: ["Action", "RPG"],
      installed: true,
      installPath: "C:/Games/Starfall Protocol",
      executablePath: "C:/Games/Starfall Protocol/starfall.exe",
      description: "Pilot a relic fighter through collapsing gates in a neon campaign built for controller play.",
      longDescription: "Experience a fast-paced action-RPG where you pilot experimental fighter craft through a collapsing interdimensional gateway. Built from the ground up with controller support, Starfall Protocol features real-time combat, intricate level design, and a gripping sci-fi narrative. Perfect for couch co-op sessions or solo playthroughs.",
      lastPlayed: "2026-05-15T21:15:00Z",
      installedAt: "2026-05-01T08:30:00Z",
      playtimeMinutes: 1874,
      supportsController: true,
      steamDeckVerified: true,
      achievementsSupported: true,
      achievementsUnlocked: 28,
      achievementsTotal: 54,
      multiplayer: true,
      coOp: true,
      screenshots: [
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%234fd8ff' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EStarfall Protocol - Screenshot 1%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%239d4fe0' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EStarfall Protocol - Screenshot 2%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%231f7aff' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EStarfall Protocol - Screenshot 3%3C/text%3E%3C/svg%3E",
      ],
      accent: "#4fd8ff",
    },
    {
      id: "mock-iron-vault",
      title: "Iron Vault Tactics",
      type: "game",
      source: "gog",
      genre: ["Strategy", "Indie"],
      installed: true,
      installPath: "D:/Games/Iron Vault Tactics",
      executablePath: "D:/Games/Iron Vault Tactics/ivt.exe",
      description: "A turn-based tactics sandbox with long-form campaigns, mod support, and couch co-op skirmishes.",
      longDescription: "Command your squad through dynamic turn-based tactical battles in Iron Vault Tactics. Features mod support, deep unit customization, engaging campaign narratives, and intense couch co-op multiplayer. Each decision matters in this tactical masterpiece.",
      lastPlayed: "2026-05-10T11:00:00Z",
      installedAt: "2026-04-18T18:00:00Z",
      playtimeMinutes: 942,
      supportsController: true,
      achievementsSupported: false,
      multiplayer: true,
      coOp: true,
      screenshots: [
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%2339ffd2' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EIron Vault Tactics - Screenshot 1%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%234fd8ff' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EIron Vault Tactics - Screenshot 2%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%239d4fe0' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EIron Vault Tactics - Screenshot 3%3C/text%3E%3C/svg%3E",
      ],
      accent: "#39ffd2",
    },
    {
      id: "mock-nebula-paint",
      title: "Nebula Paint Studio",
      type: "software",
      source: "native",
      genre: ["Creative", "Utilities"],
      installed: true,
      installPath: "C:/Program Files/Nebula Paint",
      executablePath: "C:/Program Files/Nebula Paint/paint.exe",
      description: "A TV-friendly concept art tool for quick capture, markup, and launcher artwork editing.",
      longDescription: "Nebula Paint Studio is a professional-grade digital painting application optimized for controller input and TV display. Create stunning concept art, edit game launcher artwork, and collaborate seamlessly with frame-perfect precision.",
      lastPlayed: "2026-05-11T06:20:00Z",
      installedAt: "2026-03-12T09:00:00Z",
      playtimeMinutes: 223,
      supportsController: true,
      achievementsSupported: false,
      multiplayer: false,
      coOp: false,
      screenshots: [
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%239d4fe0' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3ENebula Paint Studio - Screenshot 1%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%234fd8ff' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3ENebula Paint Studio - Screenshot 2%3C/text%3E%3C/svg%3E",
      ],
      accent: "#9d4fe0",
    },
    {
      id: "mock-ember",
      title: "Emberline",
      type: "game",
      source: "epic",
      genre: ["Action", "Indie"],
      installed: false,
      installPath: null,
      executablePath: null,
      description: "Wishlist entry from a linked store. Install support will be routed through the Epic integration later.",
      longDescription: "Emberline is an indie action game with stunning visuals and engaging gameplay. Add it to your library to stay updated on new releases, sales, and updates.",
      lastPlayed: null,
      installedAt: null,
      playtimeMinutes: 0,
      supportsController: true,
      steamDeckVerified: false,
      achievementsSupported: true,
      achievementsUnlocked: 0,
      achievementsTotal: 32,
      multiplayer: false,
      coOp: false,
      screenshots: [
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%231f7aff' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EEmberline - Screenshot 1%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%239d4fe0' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3EEmberline - Screenshot 2%3C/text%3E%3C/svg%3E",
      ],
      accent: "#1f7aff",
    },
    {
      id: "mock-retro-core",
      title: "RetroCore Station",
      type: "launcher",
      source: "emulated",
      genre: ["Launcher", "Retro"],
      installed: true,
      installPath: "D:/Emulation/RetroCore",
      executablePath: "D:/Emulation/RetroCore/retrocore.exe",
      description: "A controller-native emulator hub prepared for future ROM library scanning and save sync.",
      longDescription: "RetroCore Station is your gateway to classic gaming. Play thousands of retro games with full controller support, save synchronization, and achievement tracking across multiple emulation systems.",
      lastPlayed: "2026-05-14T04:10:00Z",
      installedAt: "2026-05-03T15:10:00Z",
      playtimeMinutes: 517,
      supportsController: true,
      achievementsSupported: true,
      achievementsUnlocked: 88,
      achievementsTotal: 210,
      multiplayer: true,
      coOp: true,
      screenshots: [
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%23ffb84f' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3ERetroCore Station - Screenshot 1%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%234fd8ff' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3ERetroCore Station - Screenshot 2%3C/text%3E%3C/svg%3E",
        "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='960' height='540'%3E%3Crect fill='%239d4fe0' width='960' height='540'/%3E%3Ctext x='480' y='270' font-size='24' fill='white' text-anchor='middle' dominant-baseline='middle'%3ERetroCore Station - Screenshot 3%3C/text%3E%3C/svg%3E",
      ],
      accent: "#ffb84f",
    },
    {
      id: "mock-orbit-tools",
      title: "Orbit Mod Tools",
      type: "tool",
      source: "other",
      genre: ["Utilities", "Game Development"],
      installed: false,
      installPath: null,
      executablePath: null,
      description: "Tooling placeholder for future mod SDK detection, dependency checks, and per-game utilities.",
      longDescription: "Orbit Mod Tools provides a comprehensive suite of utilities for game modding, including SDK management, dependency resolution, and per-game optimization tools. Essential for serious mod creators.",
      lastPlayed: null,
      installedAt: null,
      playtimeMinutes: 0,
      supportsController: false,
      achievementsSupported: false,
      multiplayer: false,
      coOp: false,
      screenshots: [],
      accent: "#ff6b9a",
    },
  ].map((item, index) => normalizeLibraryItem(item, index));

export const summarizeLibrary = (items) => {
  const visible = items.filter((item) => !item.hidden);
  return {
    total: visible.length,
    games: visible.filter((item) => item.type === "game").length,
    verified: visible.filter((item) => item.steamDeckVerified).length,
    hidden: items.filter((item) => item.hidden).length,
    installed: visible.filter((item) => item.installed).length,
  };
};