Code refactoring

scripts/helper.js

@@ -15,10 +15,13 @@ let helper = {}
 helper.sortBy = function (arr, fields) {
   return arr.sort((a, b) => {
     for (let field of fields) {
-      if (a[field].toLowerCase() < b[field].toLowerCase()) {
+      let propA = a[field] ? a[field].toLowerCase() : ''
+      let propB = b[field] ? b[field].toLowerCase() : ''
+
+      if (propA < propB) {
         return -1
       }
-      if (a[field].toLowerCase() > b[field].toLowerCase()) {
+      if (propA > propB) {
         return 1
       }
     }
@@ -41,13 +44,13 @@ helper.escapeStringRegexp = function (scring) {
 }
 
 helper.getISO6391Name = function (code) {
-  const lang = iso6393.find((l) => l.iso6393 === code.toLowerCase())
+  const lang = iso6393.find(l => l.iso6393 === code.toLowerCase())
 
   return lang && lang.name ? lang.name : null
 }
 
 helper.getISO6391Code = function (name) {
-  const lang = iso6393.find((l) => l.name === name)
+  const lang = iso6393.find(l => l.name === name)
 
   return lang && lang.iso6393 ? lang.iso6393 : null
 }
@@ -69,7 +72,7 @@ helper.parseEPG = async function (url) {
 
   return Promise.resolve({
     url,
-    channels,
+    channels
   })
 }
 
@@ -80,9 +83,9 @@ helper.getEPG = function (url) {
       method: 'get',
       url: url,
       responseType: 'stream',
-      timeout: 60000,
+      timeout: 60000
     })
-      .then((res) => {
+      .then(res => {
         let stream
         if (/\.gz$/i.test(url)) {
           let gunzip = zlib.createGunzip()
@@ -103,7 +106,7 @@ helper.getEPG = function (url) {
             reject(e)
           })
       })
-      .catch((e) => {
+      .catch(e => {
         reject(e)
       })
   })
@@ -179,7 +182,7 @@ helper.parseMessage = function (err, u) {
 
   if (msgArr.length === 0) return
 
-  const line = msgArr.find((line) => {
+  const line = msgArr.find(line => {
     return line.indexOf(u) === 0
   })
 
@@ -190,57 +193,21 @@ helper.parseMessage = function (err, u) {
 
 helper.filterPlaylists = function (arr, include = '', exclude = '') {
   if (include) {
-    const included = include.split(',').map((filename) => `channels/${filename}.m3u`)
+    const included = include.split(',').map(filename => `channels/${filename}.m3u`)
 
-    return arr.filter((i) => included.indexOf(i.url) > -1)
+    return arr.filter(i => included.indexOf(i.url) > -1)
   }
 
   if (exclude) {
-    const excluded = exclude.split(',').map((filename) => `channels/${filename}.m3u`)
+    const excluded = exclude.split(',').map(filename => `channels/${filename}.m3u`)
 
-    return arr.filter((i) => excluded.indexOf(i.url) === -1)
+    return arr.filter(i => excluded.indexOf(i.url) === -1)
   }
 
   return arr
 }
 
-class Playlist {
+helper.filterGroup = function (groupTitle) {
-  constructor(data) {
-    this.header = data.header
-    this.items = data.items
-    this.changed = false
-  }
-
-  getHeader() {
-    let parts = ['#EXTM3U']
-    for (let key in this.header.attrs) {
-      let value = this.header.attrs[key]
-      if (value) {
-        parts.push(`${key}="${value}"`)
-      }
-    }
-
-    return `${parts.join(' ')}\n`
-  }
-}
-
-class Channel {
-  constructor(data) {
-    this.id = data.tvg.id
-    this.name = data.tvg.name
-    this.language = data.tvg.language
-      .split(';')
-      .filter((l) => !!helper.getISO6391Code(l))
-      .join(';')
-    this.logo = data.tvg.logo
-    this.group = this._filterGroup(data.group.title)
-    this.url = data.url
-    this.title = data.name.trim()
-    this.userAgent = data.http['user-agent']
-    this.referrer = data.http['referrer']
-  }
-
-  _filterGroup(groupTitle) {
   if (!groupTitle) return ''
 
   const supportedCategories = [
@@ -272,11 +239,9 @@ class Channel {
     'Sport',
     'Travel',
     'Weather',
-      'XXX',
+    'XXX'
   ]
-    const groupIndex = supportedCategories
+  const groupIndex = supportedCategories.map(g => g.toLowerCase()).indexOf(groupTitle.toLowerCase())
-      .map((g) => g.toLowerCase())
-      .indexOf(groupTitle.toLowerCase())
 
   if (groupIndex === -1) {
     groupTitle = ''
@@ -285,38 +250,117 @@ class Channel {
   }
 
   return groupTitle
+}
+
+class Playlist {
+  constructor(data) {
+    this.header = data.header
+    this.items = data.items
+    this.changed = false
+  }
+
+  getHeader() {
+    let parts = ['#EXTM3U']
+    for (let key in this.header.attrs) {
+      let value = this.header.attrs[key]
+      if (value) {
+        parts.push(`${key}="${value}"`)
+      }
+    }
+
+    return `${parts.join(' ')}\n`
+  }
+}
+
+class Channel {
+  constructor(data) {
+    this.parseData(data)
+  }
+
+  parseData(data) {
+    const language = data.tvg.language
+      .split(';')
+      .map(name => {
+        const code = name ? helper.getISO6391Code(name) : null
+        if (!code) return null
+
+        return {
+          code,
+          name
+        }
+      })
+      .filter(l => l)
+
+    this.language = language
+    this.logo = data.tvg.logo
+    this.category = helper.filterGroup(data.group.title)
+    this.url = data.url
+    this.name = data.name.trim()
+    this.http = data.http
+    this.tvg = data.tvg
+    this.country = {
+      code: null,
+      name: null
+    }
+  }
+
+  get ['language.name']() {
+    return this.language[0] ? this.language[0].name : null
+  }
+
+  get ['country.name']() {
+    return this.country.name || null
   }
 
   toString() {
-    const country = this.countryCode.toUpperCase()
+    const country = this.country.code ? this.country.code.toUpperCase() : ''
-    const epg = this.id && this.epg ? this.epg : ''
+    const tvgUrl = (this.tvg.id || this.tvg.name) && this.tvg.url ? this.tvg.url : ''
+    const language = this.language.map(l => l.name).join(';')
 
-    let info = `-1 tvg-id="${this.id}" tvg-name="${this.name}" tvg-language="${this.language}" tvg-logo="${this.logo}" tvg-country="${country}" tvg-url="${epg}" group-title="${this.group}",${this.title}`
+    let info = `-1 tvg-id="${this.tvg.id}" tvg-name="${this.tvg.name}" tvg-language="${language}" tvg-logo="${this.logo}" tvg-country="${country}" tvg-url="${tvgUrl}" group-title="${this.category}",${this.name}`
 
-    if (this.referrer) {
+    if (this.http['referrer']) {
-      info += `\n#EXTVLCOPT:http-referrer=${this.referrer}`
+      info += `\n#EXTVLCOPT:http-referrer=${this.http['referrer']}`
     }
 
-    if (this.userAgent) {
+    if (this.http['user-agent']) {
-      info += `\n#EXTVLCOPT:http-user-agent=${this.userAgent}`
+      info += `\n#EXTVLCOPT:http-user-agent=${this.http['user-agent']}`
     }
 
     return '#EXTINF:' + info + '\n' + this.url + '\n'
   }
 
   toShortString() {
-    let info = `-1 tvg-id="${this.id}" tvg-name="${this.name}" tvg-language="${this.language}" tvg-logo="${this.logo}" group-title="${this.group}",${this.title}`
+    const language = this.language.map(l => l.name).join(';')
 
-    if (this.referrer) {
+    let info = `-1 tvg-id="${this.tvg.id}" tvg-name="${this.tvg.name}" tvg-language="${language}" tvg-logo="${this.logo}" group-title="${this.category}",${this.namee}`
-      info += `\n#EXTVLCOPT:http-referrer=${this.referrer}`
+
+    if (this.http['referrer']) {
+      info += `\n#EXTVLCOPT:http-referrer=${this.http['referrer']}`
     }
 
-    if (this.userAgent) {
+    if (this.http['user-agent']) {
-      info += `\n#EXTVLCOPT:http-user-agent=${this.userAgent}`
+      info += `\n#EXTVLCOPT:http-user-agent=${this.http['user-agent']}`
     }
 
     return '#EXTINF:' + info + '\n' + this.url + '\n'
   }
+
+  toJSON() {
+    return {
+      name: this.name,
+      logo: this.logo || null,
+      url: this.url,
+      category: this.category || null,
+      language: this.language,
+      country: this.country,
+      tvg: {
+        id: this.tvg.id || null,
+        name: this.tvg.name || null,
+        url: this.tvg.url || null
+      }
+    }
+  }
 }
 
 module.exports = helper