// ==UserScript==
// @namespace   moe.jixun.dn-noad

// @name        一帆视频去广告
// @description 一帆视频（原 "iF 视频"、"多瑙"）去广告

// @name:en        iFVOD no AD
// @description:en Remove AD on iFVOD (aka dnvod)

// @match       https://train.ifvod.tv/*
// @match       https://*.ifsp.tv/*
// @grant       none
// @version     2.1.6
// @author      Jixun Moe<https://jixun.moe/>
// @license     BSD-3-Clause
// @supportURL  https://jixun.moe/post/ifun-noad#respond
// @homepageURL https://jixun.moe/post/ifun-noad
// @compatible  Chrome   ViolentMonkey
// @run-at      document-start
// @downloadURL none
// ==/UserScript==

//// Injection Parameter ////
const __DEBUG__ = false;
const id = 'jixun: have fun :D';

// M 变量所定义的模组加载完毕后的 CHUNK ID。
// 通常是用户处理模块加载完毕后就可以开始了。
const CHUNK_MAIN = 6;

const M = {
  InitUser:          'T1Vy',
  PermissionManager: 'xMFu',
  StoreState:        'AytR',
  URLHelper:         '3My9',
  LegacyRouteLoader: 'tyNb',
  RxJS:              'lJxs',
};
//// Injection Parameter ////


const s = document.createElement('style');
s.textContent = `

.cloppe {
  display: block !important;
}

.video-box {
  height: unset!important;
}

.danmu-center {
  min-height: 1005px !important;
  max-width: 300px !important;
}

app-gg-block, app-gg-block.d-block, .overlay-logo
{
  display: none !important;
}

`;
const addStyle = () => document.head.appendChild(s);
const defaultAvatar = 'https://static.{Host}/upload/up/20170815000037.jpg';

const always = v => ({
  get: () => v,
  set: () => {},
});

function generateIp() {
  const invoke = x => x();
  const v = () => (Math.random() * 255) | 0;
  return [v, v, v, v].map(invoke).join('.')
}

function getKeys(obj, keys) {
  let next = obj;
  for(let i = 0; i < keys.length; i++) {
    const key = keys[i];
    if (!next || !Object.prototype.hasOwnProperty.call(next, key)) {
      return null;
    }

    next = next[key];
  }
  return next;
}

function hookPlayerComponent(RxJS, proto) {
  // rxMap: https://rxjs.dev/api/operators/map
  const rxMap = RxJS.a;

  const cache = new Set();
  const { invokeDataToVideoPage } = proto;

  function patchVideoService(VideoService) {
    if (cache.has(VideoService)) {
      return;
    }
    cache.add(VideoService);
    
    const { getMedia } = VideoService.prototype;
    VideoService.prototype.getMedia = function () {
      return getMedia.apply(this, arguments).pipe(rxMap(media => {
        if (media.vipSeriesList) {
          return media;
        }

        return Object.assign({}, media, { vipSeriesList: [] });
      }));
    };
  }

  proto.invokeDataToVideoPage = function () {
    patchVideoService(this._videoService.constructor);
    return invokeDataToVideoPage.apply(this, arguments);
  };
}

function injectToLegacyRoute(require) {
  const RouteLoader = require(M.LegacyRouteLoader);
  const forChild = getKeys(RouteLoader, ['g', 'forChild']);
  if (!forChild) { return }

  RouteLoader.g.forChild = function (child) {
    const PlayerComponentProto = getKeys(child, [1, 'component', 'prototype']);
    if (PlayerComponentProto && PlayerComponentProto.invokeDataToVideoPage) {
      hookPlayerComponent(require(M.RxJS), PlayerComponentProto);
    }
    return forChild.apply(this, arguments);
  };
}

(window.webpackJsonp = window.webpackJsonp || []).push([
  [/* iF-vod 去广告 */],
  {
    [id]: function (module, exports, require) {
      addStyle();
      const idx = webpackJsonp.findIndex(x => x[1][id]);
      webpackJsonp.splice(idx, 1);
      const fakeIp = generateIp();

      const {a: PermissionManager} = require(M.PermissionManager);
      PermissionManager.prototype.isValid = () => true;

      const {a: StoreState} = require(M.StoreState);
      Object.defineProperty(StoreState, 'allVip', always(true));
      Object.defineProperty(StoreState, 'hideAds', always(true));
      Object.defineProperty(StoreState, 'disableNotify', always(true));

      const {a: URLHelper} = require(M.URLHelper);
      
      function updateUser(user) {
        Object.defineProperty(user, 'userName', always('某用户'));
        Object.defineProperty(user, 'nickName', always('某用户'));
        Object.defineProperty(user, 'endDays', always(1));

        Object.defineProperty(user, 'vipImage', always('jixun:normal-vip.png'));
        Object.defineProperty(user, 'sex', always(9));
        Object.defineProperty(user, 'nickName', always(''));
        Object.defineProperty(user, 'experience', always(0));
        Object.defineProperty(user, 'gold', always(0));
        Object.defineProperty(user, 'nextLevel', always(99));
        Object.defineProperty(user, 'gid', always(99));

        Object.defineProperty(user, 'lastIP', always(fakeIp));
        Object.defineProperty(user, 'from', always('地球'));
        Object.defineProperty(user, 'headImage', always(URLHelper.GetHost(defaultAvatar)));
      }
      
      // 过部分检测，如 2.0x 倍速
      // 但也有一些 VIP 功能不会弹窗提示而直接报错。
      function fixUser(user) {
        Object.defineProperty(user, 'daysOfMembership', always(1));
        return user;
      }
      
      const {a: InitUser} = require(M.InitUser);
      const { fromValidateToken, fromGetAuthorizedUserInfo } = InitUser.prototype;

      InitUser.prototype.fromValidateToken = function (user) {
        updateUser(user);
        return fixUser(fromValidateToken.apply(this, arguments));
      };

      InitUser.prototype.fromGetAuthorizedUserInfo = function (user) {
        updateUser(user);
        return fixUser(fromGetAuthorizedUserInfo.apply(this, arguments));
      };

      injectToLegacyRoute(require);

      if (__DEBUG__) {
        window.__require__ = require;
      }
    },
  },
  [[id, CHUNK_MAIN]]
]);

// 过广告屏蔽检测
Object.defineProperty(window, 'isAdsBlocked', always(false));