Fixed new video not posting to Discord

src/main/java/com/fpghoti/biscuit/guild/BiscuitGuild.java

@@ -275,7 +275,7 @@ public class BiscuitGuild {
 		for(String s : ytfeeds.keySet()) {
 			YTFeedConfig config = ytfeeds.get(s);
 			YTFeed feed = config.getFeed();
-			feed.post();
+			feed.post(config);
 			config.setLastPosted(feed.getLastVideo(), feed.getLastVideoTimestamp());
 		}
 	}

src/main/java/com/fpghoti/biscuit/rss/YTFeed.java

@@ -74,36 +74,96 @@ public class YTFeed {
 		lastVideoTimestamp = link;
 	}
 	
-	public void post(){
+	public void post(YTFeedConfig config) {
 	    List<YTEntry> ytentries = getEntries();
+
+	    if (ytentries == null || ytentries.isEmpty()) {
+	        return;
+	    }
+
+	    YTEntry newestEntry = ytentries.getLast();
+
+	    if (newestEntry.getTimestamp() == null || newestEntry.getTimestamp().trim().isEmpty()) {
+	        guild.error("Could not retrieve YouTube feed newest timestamp for " + alias + "!");
+	        return;
+	    }
+
+	    Instant lastInstant = getLastInstant();
+
+	    if (lastInstant == null) {
+	        guild.log("Recovering missing YouTube feed last timestamp for " + alias + ".");
+
+	        if (lastVideo != null && !lastVideo.trim().isEmpty()) {
+	            for (YTEntry entry : ytentries) {
+	                if (entry.getURL().equals(lastVideo)) {
+	                    String recoveredTimestamp = entry.getTimestamp();
+
+	                    if (recoveredTimestamp == null || recoveredTimestamp.trim().isEmpty()) {
+	                        guild.error("Could not recover timestamp for saved YouTube video for " + alias + ".");
+	                        return;
+	                    }
+
+	                    lastVideoTimestamp = recoveredTimestamp;
+	                    config.setLastPosted(lastVideo, recoveredTimestamp);
+	                    lastInstant = parseTimestamp(recoveredTimestamp);
+
+	                    guild.log("Recovered YouTube feed last timestamp for " + alias + ".");
+	                    break;
+	                }
+	            }
+	        }
+
+	        if (lastInstant == null) {
+	            guild.log("Could not recover saved YouTube video timestamp for " + alias
+	                    + ". Initializing to newest entry without posting backlog.");
+
+	            lastVideo = newestEntry.getURL();
+	            lastVideoTimestamp = newestEntry.getTimestamp();
+
+	            config.setLastPosted(lastVideo, lastVideoTimestamp);
+
+	            return;
+	        }
+	    }
+
 	    int index = 0;
 	    int lastVidIndex = -1;
+
 	    for (YTEntry entry : ytentries) {
 	        String link = entry.getURL();
+
 	        if (link.equals(lastVideo)) {
 	            lastVidIndex = index;
+	            break;
 	        }
+
 	        index++;
 	    }
+
 	    index = 0;
+
 	    for (YTEntry entry : ytentries) {
 	        String timestamp = entry.getTimestamp();
 	        Instant entryTimestamp = parseTimestamp(timestamp);
+
 	        if (entryTimestamp == null) {
-				guild.error("Could not retrieve YouTube feed entry timestamp!");
+	            guild.error("Could not retrieve YouTube feed entry timestamp for " + alias + "!");
 	            return;
 	        }
-			if(getLastInstant() == null) {
-				guild.error("Could not retrieve YouTube feed last timestamp!");
-				return;
-			}
-			if(index > lastVidIndex && entryTimestamp.isAfter(getLastInstant())) {
+
+	        if (index > lastVidIndex && entryTimestamp.isAfter(lastInstant)) {
 	            String link = entry.getURL();
-				lastVideo = link;
-				lastVideoTimestamp = timestamp;
+
 	            MessageText.send(channel, message);
 	            MessageText.send(channel, entry.getEmbedMessage());
+
+	            lastVideo = link;
+	            lastVideoTimestamp = timestamp;
+	            config.setLastPosted(link, timestamp);
+
+	            lastInstant = entryTimestamp;
 	        }
+
 	        index++;
 	    }
 	}