Added services and youtube packages

services/base.go

@@ -0,0 +1,28 @@
+/*
+ * MumbleDJ
+ * By Matthieu Grieger
+ * services/base.go
+ * Copyright (c) 2014, 2015 Matthieu Grieger (MIT License)
+ */
+
+package services
+
+// Generic Song interface. Each service will implement these
+// functions in their Song types.
+ type Song interface {
+   Download()
+   Play()
+   Delete()
+   AddSkip()
+   RemoveSkip()
+   SkipReached()
+ }
+
+// Generic playlist interface. Each service will implement these
+// functions in their Playlist types.
+ type Playlist interface {
+   AddSkip()
+   RemoveSkip()
+   DeleteSkippers()
+   SkipReached()
+ }

services/youtube/api.go

@@ -0,0 +1,85 @@
+/*
+ * MumbleDJ
+ * By Matthieu Grieger
+ * services/youtube/api.go
+ * Copyright (c) 2014, 2015 Matthieu Grieger (MIT License)
+ */
+
+package youtube 
+
+import (
+    "encoding/json"
+    "errors"
+    "fmt"
+    "io/ioutil"
+    "net/http"
+    "os"
+    "strings"
+
+    "github.com/jmoiron/jsonq"
+)
+
+// Collection of metadata for a YouTube video.
+type YouTubeVideo struct {
+  id string
+  title string
+  duration string
+  secondsDuration string
+  thumbnail string
+}
+
+// Collection of metadata for a YouTube playlist.
+type YouTubePlaylist struct {
+  id string
+  title string
+  duration string
+  secondsDuration string
+}
+
+// Retrieves the metadata for a new YouTube video, and creates and returns a
+// YouTubeVideo type.
+func GetYouTubeVideo(id string) (*YouTubeVideo, error) {
+  url := fmt.Sprintf("https://www.googleapis.com/youtube/v3/videos?part=snippet%2CcontentDetails&id=%s&key=%s",
+    id, os.Getenv("YOUTUBE_API_KEY"))
+  jsonString := ""
+
+  if response, err := http.Get(url); err == nil {
+    defer response.Body.Close()
+    if response.StatusCode == 200 {
+      if body, err := ioutil.ReadAll(response.Body); err == nil {
+        jsonString = string(body)
+      }
+    } else {
+      if response.StatusCode == 403 {
+        return nil, errors.New("Invalid API key supplied.")
+      } else {
+        return nil, errors.New("Invalid YouTube ID supplied.")
+      }
+    }
+  } else {
+    return nil, errors.New("An error occurred while receiving HTTP GET response.")
+  }
+
+  jsonData := map[string]interface{}{}
+  decoder := json.NewDecoder(strings.NewReader(jsonString))
+  decoder.Decode(&jsonData)
+  jq := jsonq.NewQuery(jsonData)
+
+  title, _ := jq.String("items", "0", "snippet", "title")
+  thumbnail, _ := jq.String("items", "0", "snippet", "thumbnails", "high", "url")
+  duration, _ := jq.String("items", "0", "contentDetails", "duration")
+
+  minutes := int(duration[2 : strings.Index(duration, "M")])
+  seconds := int(duration[strings.Index(duration, "M")+1 : len(duration)-1])
+  totalSeconds := (minutes * 60) + seconds
+  durationString := fmt.Sprintf("%d:%d", minutes, seconds)
+
+  video := &YoutubeVideo {
+    id: id,
+    title: title,
+    duration: durationString,
+    secondsDuration: totalSeconds,
+    thumbnail: thumbnail,
+  }
+  return video, nil
+}

services/youtube/playlist.go

@@ -0,0 +1,8 @@
+/*
+ * MumbleDJ
+ * By Matthieu Grieger
+ * services/youtube/playlist.go
+ * Copyright (c) 2014, 2015 Matthieu Grieger (MIT License)
+ */
+
+package youtube

services/youtube/song.go

@@ -0,0 +1,23 @@
+/*
+ * MumbleDJ
+ * By Matthieu Grieger
+ * services/youtube/song.go
+ * Copyright (c) 2014, 2015 Matthieu Grieger (MIT License)
+ */
+
+package youtube
+
+type Song struct {
+  submitter string
+  title string
+  id string
+  duration string
+  thumbnailUrl string
+  skippers []string
+  playlist *Playlist
+  dontSkip bool
+}
+
+func NewSong(user, id string, playlist *Playlist) (*Song, error) {
+
+}