pickURLs added

radiomanifest.js

@@ -7,6 +7,12 @@ function getManifestUrl (siteurl) {
   return siteurl + '/radiomanifest.xml' // XXX: improve this logic
 }
 
+function getAttribute(el, attr, default_value) {
+  if(el.hasAttribute(attr))
+    return el.getAttribute(attr);
+  return default_value;
+}
+
 class Radio {
   constructor (sources, schedule, shows, feed) {
     this.streaming = new RadioStreaming(sources)
@@ -47,9 +53,6 @@ class Radio {
       }
       sources.push(src)
     }
-    sources.sort(function cmp (a, b) {
-      return parseInt(a.getAttribute('priority', 10)) < parseInt(b.getAttribute('priority', 10))
-    })
 
     res = doc.evaluate('/radio-manifest/schedule', doc)
     const scheduleEl = res.iterateNext()
@@ -77,24 +80,50 @@ class Radio {
   }
 }
 
-function RadioStreaming (sources) {
-  this.sources = sources
-}
-
-RadioStreaming.prototype.getOptions = function () {
-  return this.sources.map(function (x) {
-    return x.getAttribute('name')
-  })
-}
-RadioStreaming.prototype.getSource = function (name) {
-  if (name === undefined) {
-
+class RadioStreaming {
+  constructor (sources) {
+    this.sources = sources.sort(
+        (a,b) => this.getPriority(a) < this.getPriority(a) 
+        )
+  }
+
+  getOptions() {
+    return this.sources.map(function (x) {
+        return x.getAttribute('name')
+        })
+  }
+  // this is private
+  getPriority(element) {
+    return parseInt(getAttribute(element, 'priority', '1'))
+  }
+  // this is private
+  getTopPrioritySources() {
+    var topPriority = this.getPriority(this.sources[0])
+    return this.sources.filter(
+        (src) => parseInt(src.getAttribute('priority'), 10) === topPriority
+        )
+  }
+  getSource(name) {
+    if (name === undefined) {
+      return this.getTopPrioritySources()[0]
+    }
+    const s = this.sources.find(function (x) {
+        return x.getAttribute('name') === name
+        })
+    if (s === undefined) return s
+      return s.getAttribute('src')
+  }
+  
+  async pickURLs() {
+    var allSources = this.getTopPrioritySources()
+    var allAudios = []
+    for(let src of allSources) {
+      let url = src.getAttribute('src')
+      let resp = await fetch(url)
+      allAudios.unshift(... parseM3U(await resp.text()))
+    }
+    return allAudios
   }
-  const s = this.sources.find(function (x) {
-    return x.getAttribute('name') === name
-  })
-  if (s === undefined) return s
-  return s.getAttribute('src')
 }
 
 async function get (siteurl, options) {