git.iko.soy/webring
on 7e11c4e help sign in
webring/scripts/hallway.js
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1'use strict'
3function Hallway (sites) {
4 const feeds = {}
5 this.sites = sites
6 this.el = document.createElement('div')
7 this.el.id = 'hallway'
9 this.install = function (host) {
10 host.appendChild(this.el)
11 this.findFeeds()
12 }
14 this.start = function () {
15 this.el.innerHTML = 'hello'
16 this.fetchFeeds()
17 }
19 this.refresh = function () {
20 const entries = this.sortEntries()
21 let html = ''
22 for (const id in entries) {
23 html += `${this.templateEntry(entries[id])}\n`
24 }
25 this.el.innerHTML = `<ul>${html}</ul>${this._footer()}`
26 }
28 // Entries
30 this.sortEntries = function () {
31 const a = []
32 for (const id in feeds) {
33 const feed = feeds[id]
34 for (const i in feed.content) {
35 const entry = feed.content[i]
36 a.push(entry)
37 }
38 }
39 return a.sort(compare)
40 }
42 this.templateEntry = function (entry) {
43 // Find mention
44 if (entry.body.indexOf('@<') > -1) {
45 const data = entry.body.split('@<').pop().split('>')[0]
46 const mention = data.split(' ')
47 const name = mention[0]
48 const path = mention[1]
49 entry.body = entry.body.replace(`@<${data}>`, `<a href='${path}'>@${name}</a>`)
50 }
52 if (entry.body.substr(0, 1) === '/') {
53 const channel = entry.body.split(' ')[0]
54 entry.body = entry.body.replace(channel, `<span class='channel'>${channel}</span>`)
55 }
57 const filter = window.location.hash.substr(1).replace(/\+/g, ' ').toLowerCase()
58 const highlight = filter == entry.author.toLowerCase()
60 return `<li class='entry ${highlight ? 'highlight' : ''}'><span class='date'>${timeAgo(Date.parse(entry.date))}</span> <span class='author'>${entry.author}</span> <span class='body'>${entry.body}</span></li>`
61 }
63 // Feeds
65 this.findFeeds = function () {
66 console.log('Finding feeds..')
67 for (const id in sites) {
68 const site = sites[id]
69 if (site.feed && site.author) {
70 feeds[site.author] = { path: site.feed }
71 }
72 }
73 console.log(`Found ${Object.keys(feeds).length} feeds.`)
74 }
76 this.fetchFeeds = function () {
77 console.log(`Fetching ${Object.keys(feeds).length} feeds..`)
78 for (const id in feeds) {
79 this.fetchFeed(id, feeds[id])
80 }
81 }
83 this.fetchFeed = function (id, feed) {
84 console.log(`Fetching ${id}(${feed.path})..`)
85 Promise.all([ fetch(feed.path, { cache: 'no-store' }).then(x => x.text()) ]).then(([content]) => {
86 feeds[id].content = parseFeed(id, content)
87 this.refresh()
88 })
89 }
91 // Extras
93 this._footer = function () {
94 return '<p>The <b>Hallway</b> is a decentralized forum, to join the conversation, simply create yourself a <a href="https://twtxt.readthedocs.io/en/stable/user/twtxtfile.html">twtxt</a> feed and <a href="https://github.com/XXIIVV/Webring/">add it</a> to your entry in the <a href="index.html">webring</a>.</p>'
95 }
97 // Utils
99 function compare (a, b) {
100 return a.offset < b.offset ? -1 : a.offset > b.offset ? 1 : 0
101 }
103 function parseFeed (author, feed) {
104 const lines = feed.split('\n')
105 const entries = []
106 for (const id in lines) {
107 const line = lines[id].trim()
108 if (line === '') { continue }
109 const parts = line.replace(' ', '\t').split('\t')
110 const date = parts[0].trim()
111 const body = parts[1].trim()
112 const offset = new Date() - new Date(date)
113 entries.push({ date, body, author, offset })
114 }
115 return entries
116 }
118 function timeAgo (dateParam) {
119 const date = typeof dateParam === 'object' ? dateParam : new Date(dateParam)
120 const DAY_IN_MS = 86400000 // 24 * 60 * 60 * 1000
121 const today = new Date()
122 const yesterday = new Date(today - DAY_IN_MS)
123 const seconds = Math.round((today - date) / 1000)
124 const minutes = Math.round(seconds / 60)
125 const isToday = today.toDateString() === date.toDateString()
126 const isYesterday = yesterday.toDateString() === date.toDateString()
128 if (seconds < 5) {
129 return 'now'
130 } else if (seconds < 60) {
131 return `${seconds} seconds ago`
132 } else if (seconds < 90) {
133 return 'about a minute ago'
134 } else if (minutes < 60) {
135 return `${minutes} minutes ago`
136 } else if (isToday) {
137 return `${Math.floor(minutes / 60)} hours ago`
138 } else if (isYesterday) {
139 return 'yesterday'
140 }
142 return `${Math.floor(minutes / 1440)} days ago`
143 }