src/contentScripts/communityConsole/autoRefresh.js - infinitegforums - Gitiles

 import {CCApi} from '../../common/api.js';
 import {getAuthUser} from '../../common/communityConsoleUtils.js';

 import {createExtBadge} from './utils/common.js';

 var authuser = getAuthUser();

 const threadListRequestEvent = 'TWPT_ViewForumRequest';
 const intervalMs = 3 * 60 * 1000;   // 3 minutes
 const firstCallDelayMs = 3 * 1000;  // 3 seconds

 export default class AutoRefresh {
   constructor() {
     this.isLookingForUpdates = false;
     this.isUpdatePromptShown = false;
     this.lastTimestamp = null;
     this.filter = null;
     this.path = null;
     this.requestId = null;
     this.requestOrderOptions = null;
     this.snackbar = null;
     this.interval = null;
     this.firstCallTimeout = null;

     this.setUpHandlers();
   }

   getStartupData() {
     return JSON.parse(
         document.querySelector('html').getAttribute('data-startup'));
   }

   isOrderedByTimestampDescending() {
     // This means we didn't intercept the request.
     if (!this.requestOrderOptions) return false;

     // Returns orderOptions.by == TIMESTAMP && orderOptions.desc == true
     return (
         this.requestOrderOptions?.[1] == 1 &&
         this.requestOrderOptions?.[2] == true);
   }

   getCustomFilter(path) {
     var searchRegex = /^\/s\/community\/search\/([^\/]*)/;
     var matches = path.match(searchRegex);
     if (matches !== null && matches.length > 1) {
       var search = decodeURIComponent(matches[1]);
       var params = new URLSearchParams(search);
       return params.get('query') || '';
     }

     return '';
   }

   filterHasOverride(filter, override) {
     var escapedOverride = override.replace(/([^\w\d\s])/gi, '\\$1');
     var regex = new RegExp('[^a-zA-Z0-9]?' + escapedOverride + ':');
     return regex.test(filter);
   }

   getFilter(path) {
     var query = this.getCustomFilter(path);

     // Note: This logic has been copied and adapted from the
     // _buildQuery$1$threadId function in the Community Console
     var conditions = '';
     var startup = this.getStartupData();

     // TODO(avm99963): if the selected forums are changed without reloading the
     // page, this will get the old selected forums. Fix this.
     var forums = startup?.[1]?.[1]?.[3]?.[8] ?? [];
     if (!this.filterHasOverride(query, 'forum') && forums !== null &&
         forums.length > 0)
       conditions += ' forum:(' + forums.join(' | ') + ')';

     var langs = startup?.[1]?.[1]?.[3]?.[5] ?? [];
     if (!this.filterHasOverride(query, 'lang') && langs !== null &&
         langs.length > 0)
       conditions += ' lang:(' + langs.map(l => '"' + l + '"').join(' | ') + ')';

     if (query.length !== 0 && conditions.length !== 0)
       return '(' + query + ')' + conditions;
     return query + conditions;
   }

   getLastTimestamp() {
     return CCApi(
                'ViewForum', {
                  1: '0',  // TODO: Change, when only a forum is selected, it
                           // should be set here
                  // options
                  2: {
                    // pagination
                    1: {
                      2: 2,  // maxNum
                    },
                    // order
                    2: {
                      1: 1,     // by
                      2: true,  // desc
                    },
                    12: this.filter,  // forumViewFilters
                  },
                },
                /* authenticated = */ true, authuser)
         .then(body => {
           var timestamp = body?.[1]?.[2]?.[0]?.[2]?.[17];
           if (timestamp === undefined)
             throw new Error(
                 'Unexpected body of response (' +
                 (body?.[1]?.[2]?.[0] === undefined ?
                      'no threads were returned' :
                      'the timestamp value is not present in the first thread') +
                 ').');

           return timestamp;
         });
     // TODO(avm99963): Add retry mechanism (sometimes thread lists are empty,
     // but when loading the next page the thread appears).
     //
     // NOTE(avm99963): It seems like loading the first 2 threads instead of only
     // the first one fixes this (empty lists are now rarely returned).
   }

   unregister() {
     console.debug('autorefresh_list: unregistering');

     if (!this.isLookingForUpdates) return;

     window.clearTimeout(this.firstCallTimeout);
     window.clearInterval(this.interval);
     this.isUpdatePromptShown = false;
     this.isLookingForUpdates = false;
   }

   showUpdatePrompt() {
     this.snackbar.classList.remove('TWPT-hidden');
     document.title = '[!!!] ' + document.title.replace('[!!!] ', '');
     this.isUpdatePromptShown = true;
   }

   hideUpdatePrompt() {
     if (this.snackbar) this.snackbar.classList.add('TWPT-hidden');
     document.title = document.title.replace('[!!!] ', '');
     this.isUpdatePromptShown = false;
   }

   injectUpdatePrompt() {
     var pane = document.createElement('div');
     pane.classList.add('TWPT-pane-for-snackbar');

     var snackbar = document.createElement('material-snackbar-panel');
     snackbar.classList.add('TWPT-snackbar');
     snackbar.classList.add('TWPT-hidden');

     var ac = document.createElement('div');
     ac.classList.add('TWPT-animation-container');

     var nb = document.createElement('div');
     nb.classList.add('TWPT-notification-bar');

     var ft = document.createElement('focus-trap');

     var content = document.createElement('div');
     content.classList.add('TWPT-focus-content-wrapper');

     var badge = createExtBadge();

     var message = document.createElement('div');
     message.classList.add('TWPT-message');
     message.textContent =
         chrome.i18n.getMessage('inject_autorefresh_list_snackbar_message');

     var action = document.createElement('div');
     action.classList.add('TWPT-action');
     action.textContent =
         chrome.i18n.getMessage('inject_autorefresh_list_snackbar_action');

     action.addEventListener('click', e => {
       this.hideUpdatePrompt();
       document.querySelector('.app-title-button').click();
     });

     content.append(badge, message, action);
     ft.append(content);
     nb.append(ft);
     ac.append(nb);
     snackbar.append(ac);
     pane.append(snackbar);
     document.getElementById('default-acx-overlay-container').append(pane);
     this.snackbar = snackbar;
   }

   checkUpdate() {
     if (location.pathname != this.path) {
       this.unregister();
       return;
     }

     if (this.isUpdatePromptShown) return;

     console.debug('Checking for update at: ', new Date());

     this.getLastTimestamp()
         .then(timestamp => {
           if (timestamp != this.lastTimestamp) this.showUpdatePrompt();
         })
         .catch(
             err => console.error(
                 'Coudln\'t get last timestamp (while updating): ', err));
   }

   firstCall() {
     console.debug(
         'autorefresh_list: now performing first call to finish setup (filter: [' +
         this.filter + '])');

     if (location.pathname != this.path) {
       this.unregister();
       return;
     }

     this.getLastTimestamp()
         .then(timestamp => {
           this.lastTimestamp = timestamp;
           var checkUpdateCallback = this.checkUpdate.bind(this);
           this.interval = window.setInterval(checkUpdateCallback, intervalMs);
         })
         .catch(
             err => console.error(
                 'Couldn\'t get last timestamp (while setting up): ', err));
   }

   setUpHandlers() {
     window.addEventListener(
         threadListRequestEvent, e => this.handleListRequest(e));
   }

   handleListRequest(e) {
     // If the request was made before the last known one, return.
     if (this.requestId !== null && e.detail.id < this.requestId) return;

     // Ignore ViewForum requests made by the chat feature and the "Mark as
     // duplicate" dialog.
     //
     // All those requests have |maxNum| set to 10 and 20 respectively, while the
     // request that we want to handle is the initial request to load the thread
     // list which currently requests 100 threads.
     var maxNum = e.detail.body?.['2']?.['1']?.['2'];
     if (maxNum == 10 || maxNum == 20) return;

     // Ignore requests to load more threads in the current thread list. All
     // those requests include a PaginationToken, and also have |maxNum| set
     // to 50.
     var token = e.detail.body?.['2']?.['1']?.['3'];
     if (token) return;

     console.debug('autorefresh_list: handling valid ViewForum request');

     this.requestId = e.detail.id;
     this.requestOrderOptions = e.detail.body?.['2']?.['2'];
   }

   setUp() {
     if (!this.isOrderedByTimestampDescending()) {
       console.debug(
           'autorefresh_list: refused to start up because the order is not by timestamp descending.');
       return;
     }

     this.unregister();

     console.debug('autorefresh_list: starting set up...');

     if (this.snackbar === null) this.injectUpdatePrompt();
     this.isLookingForUpdates = true;
     this.path = location.pathname;
     this.filter = this.getFilter(this.path);

     var firstCall = this.firstCall.bind(this);
     this.firstCallTimeout = window.setTimeout(firstCall, firstCallDelayMs);
   }
 };
	import {CCApi} from '../../common/api.js';
	import {getAuthUser} from '../../common/communityConsoleUtils.js';

	import {createExtBadge} from './utils/common.js';

	var authuser = getAuthUser();

	const threadListRequestEvent = 'TWPT_ViewForumRequest';
	const intervalMs = 3 * 60 * 1000; // 3 minutes
	const firstCallDelayMs = 3 * 1000; // 3 seconds

	export default class AutoRefresh {
	constructor() {
	this.isLookingForUpdates = false;
	this.isUpdatePromptShown = false;
	this.lastTimestamp = null;
	this.filter = null;
	this.path = null;
	this.requestId = null;
	this.requestOrderOptions = null;
	this.snackbar = null;
	this.interval = null;
	this.firstCallTimeout = null;

	this.setUpHandlers();
	}

	getStartupData() {
	return JSON.parse(
	document.querySelector('html').getAttribute('data-startup'));
	}

	isOrderedByTimestampDescending() {
	// This means we didn't intercept the request.
	if (!this.requestOrderOptions) return false;

	// Returns orderOptions.by == TIMESTAMP && orderOptions.desc == true
	return (
	this.requestOrderOptions?.[1] == 1 &&
	this.requestOrderOptions?.[2] == true);
	}

	getCustomFilter(path) {
	var searchRegex = /^\/s\/community\/search\/([^\/]*)/;
	var matches = path.match(searchRegex);
	if (matches !== null && matches.length > 1) {
	var search = decodeURIComponent(matches[1]);
	var params = new URLSearchParams(search);
	return params.get('query') \|\| '';
	}

	return '';
	}

	filterHasOverride(filter, override) {
	var escapedOverride = override.replace(/([^\w\d\s])/gi, '\\$1');
	var regex = new RegExp('[^a-zA-Z0-9]?' + escapedOverride + ':');
	return regex.test(filter);
	}

	getFilter(path) {
	var query = this.getCustomFilter(path);

	// Note: This logic has been copied and adapted from the
	// _buildQuery$1$threadId function in the Community Console
	var conditions = '';
	var startup = this.getStartupData();

	// TODO(avm99963): if the selected forums are changed without reloading the
	// page, this will get the old selected forums. Fix this.
	var forums = startup?.[1]?.[1]?.[3]?.[8] ?? [];
	if (!this.filterHasOverride(query, 'forum') && forums !== null &&
	forums.length > 0)
	conditions += ' forum:(' + forums.join(' \| ') + ')';

	var langs = startup?.[1]?.[1]?.[3]?.[5] ?? [];
	if (!this.filterHasOverride(query, 'lang') && langs !== null &&
	langs.length > 0)
	conditions += ' lang:(' + langs.map(l => '"' + l + '"').join(' \| ') + ')';

	if (query.length !== 0 && conditions.length !== 0)
	return '(' + query + ')' + conditions;
	return query + conditions;
	}

	getLastTimestamp() {
	return CCApi(
	'ViewForum', {
	1: '0', // TODO: Change, when only a forum is selected, it
	// should be set here
	// options
	2: {
	// pagination
	1: {
	2: 2, // maxNum
	},
	// order
	2: {
	1: 1, // by
	2: true, // desc
	},
	12: this.filter, // forumViewFilters
	},
	},
	/* authenticated = */ true, authuser)
	.then(body => {
	var timestamp = body?.[1]?.[2]?.[0]?.[2]?.[17];
	if (timestamp === undefined)
	throw new Error(
	'Unexpected body of response (' +
	(body?.[1]?.[2]?.[0] === undefined ?
	'no threads were returned' :
	'the timestamp value is not present in the first thread') +
	').');

	return timestamp;
	});
	// TODO(avm99963): Add retry mechanism (sometimes thread lists are empty,
	// but when loading the next page the thread appears).
	//
	// NOTE(avm99963): It seems like loading the first 2 threads instead of only
	// the first one fixes this (empty lists are now rarely returned).
	}

	unregister() {
	console.debug('autorefresh_list: unregistering');

	if (!this.isLookingForUpdates) return;

	window.clearTimeout(this.firstCallTimeout);
	window.clearInterval(this.interval);
	this.isUpdatePromptShown = false;
	this.isLookingForUpdates = false;
	}

	showUpdatePrompt() {
	this.snackbar.classList.remove('TWPT-hidden');
	document.title = '[!!!] ' + document.title.replace('[!!!] ', '');
	this.isUpdatePromptShown = true;
	}

	hideUpdatePrompt() {
	if (this.snackbar) this.snackbar.classList.add('TWPT-hidden');
	document.title = document.title.replace('[!!!] ', '');
	this.isUpdatePromptShown = false;
	}

	injectUpdatePrompt() {
	var pane = document.createElement('div');
	pane.classList.add('TWPT-pane-for-snackbar');

	var snackbar = document.createElement('material-snackbar-panel');
	snackbar.classList.add('TWPT-snackbar');
	snackbar.classList.add('TWPT-hidden');

	var ac = document.createElement('div');
	ac.classList.add('TWPT-animation-container');

	var nb = document.createElement('div');
	nb.classList.add('TWPT-notification-bar');

	var ft = document.createElement('focus-trap');

	var content = document.createElement('div');
	content.classList.add('TWPT-focus-content-wrapper');

	var badge = createExtBadge();

	var message = document.createElement('div');
	message.classList.add('TWPT-message');
	message.textContent =
	chrome.i18n.getMessage('inject_autorefresh_list_snackbar_message');

	var action = document.createElement('div');
	action.classList.add('TWPT-action');
	action.textContent =
	chrome.i18n.getMessage('inject_autorefresh_list_snackbar_action');

	action.addEventListener('click', e => {
	this.hideUpdatePrompt();
	document.querySelector('.app-title-button').click();
	});

	content.append(badge, message, action);
	ft.append(content);
	nb.append(ft);
	ac.append(nb);
	snackbar.append(ac);
	pane.append(snackbar);
	document.getElementById('default-acx-overlay-container').append(pane);
	this.snackbar = snackbar;
	}

	checkUpdate() {
	if (location.pathname != this.path) {
	this.unregister();
	return;
	}

	if (this.isUpdatePromptShown) return;

	console.debug('Checking for update at: ', new Date());

	this.getLastTimestamp()
	.then(timestamp => {
	if (timestamp != this.lastTimestamp) this.showUpdatePrompt();
	})
	.catch(
	err => console.error(
	'Coudln\'t get last timestamp (while updating): ', err));
	}

	firstCall() {
	console.debug(
	'autorefresh_list: now performing first call to finish setup (filter: [' +
	this.filter + '])');

	if (location.pathname != this.path) {
	this.unregister();
	return;
	}

	this.getLastTimestamp()
	.then(timestamp => {
	this.lastTimestamp = timestamp;
	var checkUpdateCallback = this.checkUpdate.bind(this);
	this.interval = window.setInterval(checkUpdateCallback, intervalMs);
	})
	.catch(
	err => console.error(
	'Couldn\'t get last timestamp (while setting up): ', err));
	}

	setUpHandlers() {
	window.addEventListener(
	threadListRequestEvent, e => this.handleListRequest(e));
	}

	handleListRequest(e) {
	// If the request was made before the last known one, return.
	if (this.requestId !== null && e.detail.id < this.requestId) return;

	// Ignore ViewForum requests made by the chat feature and the "Mark as
	// duplicate" dialog.
	//
	// All those requests have \|maxNum\| set to 10 and 20 respectively, while the
	// request that we want to handle is the initial request to load the thread
	// list which currently requests 100 threads.
	var maxNum = e.detail.body?.['2']?.['1']?.['2'];
	if (maxNum == 10 \|\| maxNum == 20) return;

	// Ignore requests to load more threads in the current thread list. All
	// those requests include a PaginationToken, and also have \|maxNum\| set
	// to 50.
	var token = e.detail.body?.['2']?.['1']?.['3'];
	if (token) return;

	console.debug('autorefresh_list: handling valid ViewForum request');

	this.requestId = e.detail.id;
	this.requestOrderOptions = e.detail.body?.['2']?.['2'];
	}

	setUp() {
	if (!this.isOrderedByTimestampDescending()) {
	console.debug(
	'autorefresh_list: refused to start up because the order is not by timestamp descending.');
	return;
	}

	this.unregister();

	console.debug('autorefresh_list: starting set up...');

	if (this.snackbar === null) this.injectUpdatePrompt();
	this.isLookingForUpdates = true;
	this.path = location.pathname;
	this.filter = this.getFilter(this.path);

	var firstCall = this.firstCall.bind(this);
	this.firstCallTimeout = window.setTimeout(firstCall, firstCallDelayMs);
	}
	};