Create Playlist.js

scripts/helpers/Playlist.js

@@ -0,0 +1,44 @@
+const Channel = require('./Channel')
+const file = require('./file')
+
+module.exports = class Playlist {
+  constructor({ header, items, url, name, country }) {
+    this.url = url
+    this.name = name
+    this.country = country
+    this.header = header
+    this.channels = items
+      .map(item => new Channel({ data: item, header, sourceUrl: url }))
+      .filter(channel => channel.url)
+  }
+
+  toString(options = {}) {
+    const config = { raw: false, ...options }
+    let parts = ['#EXTM3U']
+    for (let key in this.header.attrs) {
+      let value = this.header.attrs[key]
+      if (value) {
+        parts.push(`${key}="${value}"`)
+      }
+    }
+
+    let output = `${parts.join(' ')}\n`
+    for (let channel of this.channels) {
+      output += channel.toString(config.raw)
+    }
+
+    return output
+  }
+
+  save() {
+    const original = file.read(this.url)
+    const output = this.toString({ raw: true })
+    if (original === output) {
+      return false
+    } else {
+      file.create(this.url, output)
+    }
+
+    return true
+  }
+}