add client.progress property

1 files changed, 13 insertions, 0 deletions

diff --git a/index.js b/index.js
index 09b18b0..736fc4c 100644
--- a/index.js
+++ b/index.js
@@ -124,6 +124,19 @@ Object.defineProperty(WebTorrent.prototype, 'ratio', {
   }
 })
 
+// Percentage complete, represented as a number between 0 and 1
+Object.defineProperty(WebTorrent.prototype, 'progress', {
+  get: function () {
+    var downloaded = this.torrents.reduce(function (total, torrent) {
+      return total + torrent.downloaded
+    }, 0)
+    var length = this.torrents.reduce(function (total, torrent) {
+      return total + (torrent.length || 0)
+    }, 0) || 1
+    return downloaded / length
+  }
+})
+
 // Download speed in bytes/sec
 Object.defineProperty(WebTorrent.prototype, 'downloadSpeed', {
   get: function () { return this._downloadSpeed() }