From 1a5af21f3567c12866018f6c338b2df21292c03c Mon Sep 17 00:00:00 2001
From: Aleksandr Statciuk <free.arhey@gmail.com>
Date: Sun, 1 Aug 2021 19:45:20 +0300
Subject: [PATCH] Create Playlist.js

---
 scripts/helpers/Playlist.js | 44 +++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 scripts/helpers/Playlist.js

diff --git a/scripts/helpers/Playlist.js b/scripts/helpers/Playlist.js
new file mode 100644
index 000000000..4e8668edd
--- /dev/null
+++ b/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
+  }
+}