Add retweet info

Close #29

tweets_test.go

@@ -94,3 +94,21 @@ func TestGetTweet(t *testing.T) {
 		}
 	}
 }
+
+func TestRetweet(t *testing.T) {
+	sample := Retweet{
+		ID:         "1359151057872580612",
+		TimeParsed: time.Date(2021, 02, 9, 14, 43, 58, 0, time.FixedZone("UTC", 0)),
+		Timestamp:  1612881838,
+		UserID:     "773578328498372608",
+		Username:   "TwitterTogether",
+	}
+	tweet, err := defaultScraper.GetTweet("1362849141248974853")
+	if err != nil {
+		t.Error(err)
+	} else {
+		if diff := cmp.Diff(sample, tweet.Retweet); diff != "" {
+			t.Error("Resulting retweet does not match the sample", diff)
+		}
+	}
+}

types.go

@@ -10,6 +10,15 @@ type (
 		URL     string
 	}
 
+	// Retweet type
+	Retweet struct {
+		ID         string
+		TimeParsed time.Time
+		Timestamp  int64
+		UserID     string
+		Username   string
+	}
+
 	// Tweet type.
 	Tweet struct {
 		Hashtags     []string
@@ -24,6 +33,7 @@ type (
 		Photos       []string
 		Replies      int
 		Retweets     int
+		Retweet      Retweet
 		Text         string
 		TimeParsed   time.Time
 		Timestamp    int64

util.go

@@ -129,6 +129,18 @@ func parseTimeline(timeline *timeline) ([]*Tweet, string) {
 		}
 		if tweet.RetweetedStatusIDStr != "" {
 			tw.IsRetweet = true
+			if retweet, ok := timeline.GlobalObjects.Tweets[tweet.RetweetedStatusIDStr]; ok {
+				tw.Retweet = Retweet{
+					ID:       tweet.RetweetedStatusIDStr,
+					UserID:   retweet.UserIDStr,
+					Username: timeline.GlobalObjects.Users[retweet.UserIDStr].ScreenName,
+				}
+				tm, err := time.Parse(time.RubyDate, retweet.CreatedAt)
+				if err == nil {
+					tw.Retweet.TimeParsed = tm
+					tw.Retweet.Timestamp = tm.Unix()
+				}
+			}
 		}
 
 		for _, pinned := range timeline.GlobalObjects.Users[tweet.UserIDStr].PinnedTweetIdsStr {