From 14bb9df146f0c0dd7f76e3d0c70f80a4d0f106d8 Mon Sep 17 00:00:00 2001
From: Matthieu Grieger <matthieugrieger@gmail.com>
Date: Wed, 8 Apr 2015 23:44:48 -0700
Subject: [PATCH] Added PerformGetRequest

---
 services/youtube/api.go | 92 +++++++++++++++++++++++++----------------
 1 file changed, 56 insertions(+), 36 deletions(-)

diff --git a/services/youtube/api.go b/services/youtube/api.go
index 25c9e65..42abdb7 100644
--- a/services/youtube/api.go
+++ b/services/youtube/api.go
@@ -19,8 +19,8 @@ import (
 	"github.com/jmoiron/jsonq"
 )
 
-// Collection of metadata for a YouTube video.
-type YouTubeVideo struct {
+// Video holds the metadata for a YouTube video.
+type Video struct {
 	id              string
 	title           string
 	duration        string
@@ -28,46 +28,25 @@ type YouTubeVideo struct {
 	thumbnail       string
 }
 
-// Collection of metadata for a YouTube playlist.
-type YouTubePlaylist struct {
-	id              string
-	title           string
-	duration        string
-	secondsDuration string
+// Playlist holds the metadata for a YouTube playlist.
+type Playlist struct {
+	id       string
+	title    string
+	videoIds []string
 }
 
-// Retrieves the metadata for a new YouTube video, and creates and returns a
-// YouTubeVideo type.
+// GetYouTubeVideo retrieves the metadata for a new YouTube video, and creates and returns a
+// Video type.
 func GetYouTubeVideo(id string) (*YouTubeVideo, error) {
-	url := fmt.Sprintf("https://www.googleapis.com/youtube/v3/videos?part=snippet%2CcontentDetails&id=%s&key=%s",
+	url := fmt.Sprintf("https://www.googleapis.com/youtube/v3/videos?part=snippet,contentDetails&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.")
+	if response, err := PerformGetRequest(url); err != nil {
+		return nil, err
 	}
 
-	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")
+	title, _ := response.String("items", "0", "snippet", "title")
+	thumbnail, _ := response.String("items", "0", "snippet", "thumbnails", "high", "url")
+	duration, _ := response.String("items", "0", "contentDetails", "duration")
 
 	minutes := int(duration[2:strings.Index(duration, "M")])
 	seconds := int(duration[strings.Index(duration, "M")+1 : len(duration)-1])
@@ -83,3 +62,44 @@ func GetYouTubeVideo(id string) (*YouTubeVideo, error) {
 	}
 	return video, nil
 }
+
+// GetYouTubePlaylist retrieves the metadata for a new YouTube playlist, and creates and returns
+// a Playlist type.
+func GetYouTubePlaylist(id string) (*YouTubePlaylist, error) {
+	url := fmt.Sprintf("https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=25&playlistId=%s&key=%s",
+		id, os.Getenv("YOUTUBE_API_KEY"))
+	if response, err := PerformGetRequest(url); err != nil {
+		return nil, err
+	}
+
+	title, _ := response.String("items", "0")
+
+}
+
+// PerformGetRequest does all the grunt work for a Youtube HTTPS GET request.
+func PerformGetRequest(url string) (*jsonq.JsonQuery, error) {
+	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.")
+			}
+			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)
+
+	return jq, nil
+}