import { VIDEO_POOL } from './videos';
import type { StubVideo } from './videos';
import { PlaylistType } from '../runtime/constants/playlist-type';
import type { IPlaylistCard } from '../types';

const HOUR = 3600;
const DAY = 24 * HOUR;

/** Сколько последних роликов сущности показываем в ленте. */
const PREVIEW_LIMIT = 5;

export type LibraryFollowVideo = StubVideo & {
  guid: string;
  isNew: boolean;
};

type LibraryFollowBase = {
  guid: string;
  title: string;
  videosCount: number;
  /** Сколько роликов вышло с прошлого захода; 0 — плашки «новое» нет */
  newCount: number;
  /** Unix timestamp (сек.) последнего добавленного ролика */
  lastVideoAddedAt: number;
  videos: LibraryFollowVideo[];
};

export type LibraryModelStub = LibraryFollowBase & {
  avatarUrl: string;
  country: {
    name: string
    title: string
  };
  age: number;
  /** Параметры модели из API: guy_type, body_build, ethnicity */
  guyType: string;
  bodyBuild: string;
  ethnicity: string;
};

export type LibraryChannelStub = LibraryFollowBase & {
  avatarUrl?: string;
  followersCount: number;
  tags: string[];
};

export type LibraryCategoryStub = LibraryFollowBase;

/** Плейлист подписки: карточка как в общем гриде + число новых роликов. */
export type LibraryPlaylistStub = IPlaylistCard & { newCount: number };

const now = () => Math.floor(Date.now() / 1000);

const toSlug = (title: string) => title.toLowerCase().replace(/\s+/g, '-');

/** Нарезает пул на ленту сущности: guid уникален внутри неё, первые `newCount` помечены новинками. */
function buildVideos(slug: string, offset: number, newCount: number): LibraryFollowVideo[] {
  return Array.from({ length: PREVIEW_LIMIT }, (_, index) => {
    const video = VIDEO_POOL[(offset + index) % VIDEO_POOL.length];

    return {
      ...video,
      guid: `${slug}-${video.id}`,
      isNew: index < newCount,
    };
  });
}

/** Порядок по числу новинок намеренно не совпадает с алфавитным — иначе обе сортировки дают одно и то же. */
const MODELS = [
  { title: 'Dakota Lovell', image: 'Dakota_Lovell.png', country: { name: 'us', title: 'USA' }, age: 22, videosCount: 41, newCount: 3, guyType: 'Twink', bodyBuild: 'Slim', ethnicity: 'Caucasian', updatedAgo: 6 * HOUR, videoOffset: 3 },
  { title: 'Jax Thirio', image: 'Jax_Thirio.png', country: { name: 'ca', title: 'Canada' }, age: 38, videosCount: 17, newCount: 2, guyType: 'Daddy', bodyBuild: 'Muscular', ethnicity: 'Latino', updatedAgo: 2 * DAY, videoOffset: 9 },
  { title: 'Austin Young', image: 'Austin_Young.png', country: { name: 'us', title: 'USA' }, age: 24, videosCount: 75, newCount: 1, guyType: 'Twink', bodyBuild: 'Athletic', ethnicity: 'Caucasian', updatedAgo: 9 * DAY, videoOffset: 0 },
  { title: 'Devin Franco', image: 'Devin_Franco.png', country: { name: 'us', title: 'USA' }, age: 33, videosCount: 24, newCount: 0, guyType: 'Jock', bodyBuild: 'Muscular', ethnicity: 'Black', updatedAgo: 21 * DAY, videoOffset: 6 },
  { title: 'Dakota Lovell', image: 'Dakota_Lovell.png', country: { name: 'us', title: 'USA' }, age: 22, videosCount: 41, newCount: 3, guyType: 'Twink', bodyBuild: 'Slim', ethnicity: 'Caucasian', updatedAgo: 6 * HOUR, videoOffset: 3 },
  { title: 'Jax Thirio', image: 'Jax_Thirio.png', country: { name: 'ca', title: 'Canada' }, age: 38, videosCount: 17, newCount: 2, guyType: 'Daddy', bodyBuild: 'Muscular', ethnicity: 'Latino', updatedAgo: 2 * DAY, videoOffset: 9 },
  { title: 'Austin Young', image: 'Austin_Young.png', country: { name: 'us', title: 'USA' }, age: 24, videosCount: 75, newCount: 1, guyType: 'Twink', bodyBuild: 'Athletic', ethnicity: 'Caucasian', updatedAgo: 9 * DAY, videoOffset: 0 },
  { title: 'Devin Franco', image: 'Devin_Franco.png', country: { name: 'us', title: 'USA' }, age: 33, videosCount: 24, newCount: 0, guyType: 'Jock', bodyBuild: 'Muscular', ethnicity: 'Black', updatedAgo: 21 * DAY, videoOffset: 6 },
  { title: 'Dakota Lovell', image: 'Dakota_Lovell.png', country: { name: 'us', title: 'USA' }, age: 22, videosCount: 41, newCount: 3, guyType: 'Twink', bodyBuild: 'Slim', ethnicity: 'Caucasian', updatedAgo: 6 * HOUR, videoOffset: 3 },
  { title: 'Dakota Lovell', image: 'Dakota_Lovell.png', country: { name: 'us', title: 'USA' }, age: 22, videosCount: 41, newCount: 3, guyType: 'Twink', bodyBuild: 'Slim', ethnicity: 'Caucasian', updatedAgo: 6 * HOUR, videoOffset: 3 },
  { title: 'Dakota Lovell', image: 'Dakota_Lovell.png', country: { name: 'us', title: 'USA' }, age: 22, videosCount: 41, newCount: 3, guyType: 'Twink', bodyBuild: 'Slim', ethnicity: 'Caucasian', updatedAgo: 6 * HOUR, videoOffset: 3 },
  { title: 'Dakota Lovell', image: 'Dakota_Lovell.png', country: { name: 'us', title: 'USA' }, age: 22, videosCount: 41, newCount: 3, guyType: 'Twink', bodyBuild: 'Slim', ethnicity: 'Caucasian', updatedAgo: 6 * HOUR, videoOffset: 3 },
  { title: 'Jax Thirio', image: 'Jax_Thirio.png', country: { name: 'ca', title: 'Canada' }, age: 38, videosCount: 17, newCount: 2, guyType: 'Daddy', bodyBuild: 'Muscular', ethnicity: 'Latino', updatedAgo: 2 * DAY, videoOffset: 9 },
  { title: 'Austin Young', image: 'Austin_Young.png', country: { name: 'us', title: 'USA' }, age: 24, videosCount: 75, newCount: 1, guyType: 'Twink', bodyBuild: 'Athletic', ethnicity: 'Caucasian', updatedAgo: 9 * DAY, videoOffset: 0 },
  { title: 'Devin Franco', image: 'Devin_Franco.png', country: { name: 'us', title: 'USA' }, age: 33, videosCount: 24, newCount: 0, guyType: 'Jock', bodyBuild: 'Muscular', ethnicity: 'Black', updatedAgo: 21 * DAY, videoOffset: 6 },
];

const CHANNELS = [
  { title: 'Top To Bottom', avatarUrl: undefined, videosCount: 17, followersCount: 12800, newCount: 3, tags: ['Versatile', 'Flip-Flop', 'HD', 'Professional', 'Exclusive', 'Bareback'], updatedAgo: 4 * HOUR, videoOffset: 2 },
  { title: 'Icon Male', avatarUrl: 'https://nli01.joystorage.com/c/0/2/c02a3f8ef14943b5f3da537aaed46fcc.jpeg', videosCount: 128, followersCount: 128400, newCount: 2, tags: ['Muscle', 'Daddy', 'Bareback', 'Professional', 'Exclusive', 'HD', 'Studio'], updatedAgo: DAY, videoOffset: 0 },
  { title: 'Sean Cody', avatarUrl: undefined, videosCount: 64, followersCount: 210500, newCount: 1, tags: ['Jock', 'Muscle', 'Bareback', 'Studio'], updatedAgo: 5 * DAY, videoOffset: 7 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
  { title: 'Top To Bottom', avatarUrl: undefined, videosCount: 17, followersCount: 12800, newCount: 3, tags: ['Versatile', 'Flip-Flop', 'HD', 'Professional', 'Exclusive', 'Bareback'], updatedAgo: 4 * HOUR, videoOffset: 2 },
  { title: 'Icon Male', avatarUrl: 'https://nli01.joystorage.com/c/0/2/c02a3f8ef14943b5f3da537aaed46fcc.jpeg', videosCount: 128, followersCount: 128400, newCount: 2, tags: ['Muscle', 'Daddy', 'Bareback', 'Professional', 'Exclusive', 'HD', 'Studio'], updatedAgo: DAY, videoOffset: 0 },
  { title: 'Sean Cody', avatarUrl: undefined, videosCount: 64, followersCount: 210500, newCount: 1, tags: ['Jock', 'Muscle', 'Bareback', 'Studio'], updatedAgo: 5 * DAY, videoOffset: 7 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
  { title: 'Top To Bottom', avatarUrl: undefined, videosCount: 17, followersCount: 12800, newCount: 3, tags: ['Versatile', 'Flip-Flop', 'HD', 'Professional', 'Exclusive', 'Bareback'], updatedAgo: 4 * HOUR, videoOffset: 2 },
  { title: 'Icon Male', avatarUrl: 'https://nli01.joystorage.com/c/0/2/c02a3f8ef14943b5f3da537aaed46fcc.jpeg', videosCount: 128, followersCount: 128400, newCount: 2, tags: ['Muscle', 'Daddy', 'Bareback', 'Professional', 'Exclusive', 'HD', 'Studio'], updatedAgo: DAY, videoOffset: 0 },
  { title: 'Sean Cody', avatarUrl: undefined, videosCount: 64, followersCount: 210500, newCount: 1, tags: ['Jock', 'Muscle', 'Bareback', 'Studio'], updatedAgo: 5 * DAY, videoOffset: 7 },
  { title: 'Johnny Rapid', avatarUrl: 'https://nli01.joystorage.com/e/6/d/e6d0abd734a1a2eaef0baf7ceccfdb5c.jpeg', videosCount: 86, followersCount: 94200, newCount: 0, tags: ['Twink', 'Bareback', 'Group', 'Amateur'], updatedAgo: 14 * DAY, videoOffset: 4 },
];

/**
 * Широкие категории пополняются постоянно, поэтому новинки у них есть всегда; узкие вроде Firemen
 * неделями стоят на месте — там `newCount: 0`, и лента откатывается на лучшее за неделю.
 */
const CATEGORIES = [
  { title: 'Bareback', videosCount: 214, newCount: 3, updatedAgo: 3 * HOUR, videoOffset: 1 },
  { title: 'Twinks', videosCount: 176, newCount: 2, updatedAgo: 9 * HOUR, videoOffset: 5 },
  { title: 'Bareback', videosCount: 214, newCount: 3, updatedAgo: 3 * HOUR, videoOffset: 1 },
  { title: 'Twinks', videosCount: 176, newCount: 2, updatedAgo: 9 * HOUR, videoOffset: 5 },
  { title: 'Bareback', videosCount: 214, newCount: 3, updatedAgo: 3 * HOUR, videoOffset: 1 },
  { title: 'Twinks', videosCount: 176, newCount: 2, updatedAgo: 9 * HOUR, videoOffset: 5 },
];

/** Чужие плейлисты, на которые подписан пользователь. */
/** Порядок по дате намеренно не совпадает с алфавитным — иначе обе сортировки дают одно и то же. */
const PLAYLISTS = [
  { name: 'Suits after office', username: 'andyblair2', videosCount: 24, likes: 156, views: 1200, newCount: 3, searchTags: ['suits', 'office', 'group'], createdAgo: 12 * DAY, videoOffset: 0 },
  { name: 'Bears in the bathroom: steamy hairy hunks compilation vol. 3', username: 'gay.cool', videosCount: 48, likes: 2100, views: 89000, newCount: 2, searchTags: ['bears', 'bathroom', 'hairy'], createdAgo: 14 * DAY, videoOffset: 4 },
  { name: 'Locker room legends: after-practice muscle jocks marathon', username: 'mike_d', videosCount: 32, likes: 892, views: 3400, newCount: 1, searchTags: ['jocks', 'locker', 'muscle'], createdAgo: 28 * DAY, videoOffset: 8 },
  { name: 'Amateur couples first time', username: 'andyblair2', videosCount: 11, likes: 563, views: 234, newCount: 0, searchTags: ['amateur', 'couples', 'raw'], createdAgo: 25 * DAY, videoOffset: 2 },
  { name: 'Poolside summer', username: 'gay.cool', videosCount: 15, likes: 1800, views: 76000, newCount: 0, searchTags: ['outdoor', 'twinks', 'summer'], createdAgo: 35 * DAY, videoOffset: 6 },
  { name: 'Leather night', username: 'darkroom', videosCount: 9, likes: 45, views: 156, newCount: 0, searchTags: ['leather', 'fetish', 'kink'], createdAgo: 45 * DAY, videoOffset: 10 },
  { name: 'Weekend binge', username: 'mattdvoe', videosCount: 33, likes: 271, views: 2400, newCount: 3, searchTags: ['bareback', 'compilation', 'hd'], createdAgo: 5 * DAY, videoOffset: 3 },
];

/**
 * Подписки пользователя. Ручек под них пока нет — вёрстка живёт на заглушке.
 * Возраст ролика считаем от «сейчас», чтобы даты в разметке не устаревали.
 */
export function getLibraryModelsStub(): LibraryModelStub[] {
  const stamp = now();

  return MODELS.map(({ image, updatedAgo, videoOffset, ...model }) => {
    const guid = toSlug(model.title);

    return {
      ...model,
      guid,
      avatarUrl: `/img/models/${image}`,
      lastVideoAddedAt: stamp - updatedAgo,
      videos: buildVideos(guid, videoOffset, model.newCount),
    };
  });
}

export function getLibraryChannelsStub(): LibraryChannelStub[] {
  const stamp = now();

  return CHANNELS.map(({ updatedAgo, videoOffset, ...channel }) => {
    const guid = toSlug(channel.title);

    return {
      ...channel,
      guid,
      lastVideoAddedAt: stamp - updatedAgo,
      videos: buildVideos(guid, videoOffset, channel.newCount),
    };
  });
}

/** Мозаика обложек плейлиста: карточка раскладывает до 4 тумб. */
function buildThumbs(offset: number, count: number) {
  return Array.from({ length: Math.min(count, 4) }, (_, index) => (
    VIDEO_POOL[(offset + index) % VIDEO_POOL.length].thumbUrls
  ));
}

export function getLibraryPlaylistsStub(): LibraryPlaylistStub[] {
  const stamp = now();

  return PLAYLISTS.map(({ createdAgo, videoOffset, ...playlist }, index) => ({
    ...playlist,
    id: `${index + 1}`,
    playlistType: PlaylistType.Public,
    created: stamp - createdAgo,
    firstVideoId: VIDEO_POOL[videoOffset % VIDEO_POOL.length].id,
    thumbUrls: buildThumbs(videoOffset, playlist.videosCount),
  }));
}

/** Сумма новинок по всем подпискам — счётчик на колокольчике и в шапках секций. */
export function getFollowingUpdatesTotal(): number {
  return [...MODELS, ...CHANNELS, ...CATEGORIES, ...PLAYLISTS]
    .reduce((total, item) => total + item.newCount, 0);
}

export function getLibraryCategoriesStub(): LibraryCategoryStub[] {
  const stamp = now();

  return CATEGORIES.map(({ updatedAgo, videoOffset, ...category }) => {
    const guid = toSlug(category.title);

    return {
      ...category,
      guid,
      lastVideoAddedAt: stamp - updatedAgo,
      videos: buildVideos(guid, videoOffset, category.newCount),
    };
  });
}