/// <summary>
/// Publishes the tweets by forming the tweet message and publishing to twitter.
/// </summary>
private static void PublishTweetsFromFeedItems(TweetinviWrapper tweetinviWrapper, List <SyndicationItem> rssFeedItems, int startIndex)
{
System.Console.WriteLine($"[PublishTweetsFromFeedItems]: Publishing '{rssFeedItems.Count - startIndex}' new tweets to the timeline.");
for (int i = startIndex; i < rssFeedItems.Count; i++)
{
string twitterMessage = GetTweetMessageFromFeedItem(rssFeedItems[i]);
tweetinviWrapper.PublishTweet(twitterMessage);
}
}
static void Main(string[] args)
{
Console.WriteLine("Starting console application: 'RssFeedToTwitter'");
// Initialize the Environment Variables
string consumerKey = System.Environment.GetEnvironmentVariable("RssFeedToTwitter_consumerKey");
string consumerSecret = System.Environment.GetEnvironmentVariable("RssFeedToTwitter_consumerSecret");
string userAccessToken = System.Environment.GetEnvironmentVariable("RssFeedToTwitter_userAccessToken");
string userAccessSecret = System.Environment.GetEnvironmentVariable("RssFeedToTwitter_userAccessSecret");
// Initialize the TweetinviWrapper with authentication details.
TweetinviWrapper tweetinviWrapper = new TweetinviWrapper(consumerKey, consumerSecret, userAccessToken, userAccessSecret);
// Initilize the program
FeedToTwitterManager.Run(tweetinviWrapper);
Console.WriteLine("Ending console application: 'RssFeedToTwitter'");
}
/// <summary>
/// The primary logic which retrieves the feed and accordingly publishes the tweets to the twitter account.
/// </summary>
public static void Run(TweetinviWrapper tweetinviWrapper)
{
// Retrieve the feed items
List <SyndicationItem> rssFeedItems = RssFeedHelpers.RetrieveRssFeedItemsInChronologicalOrder(RssFeedUrl);
// Retrieve the last tweet on the timeline
ITweet latestTweet = tweetinviWrapper.GetLastestTweet();
string latestTweetMessage = null;
if (latestTweet != null)
{
latestTweetMessage = GetFeedTextFromTweetMessage(latestTweet.Text);
System.Console.WriteLine($"[Run]: The lastest tweet on the timeline is '{latestTweetMessage}'.");
}
// Identify the position on the feed from where the tweets need to be published.
// This is to ensure that the same feed item is not published as a tweet twice.
int index = IdentifyFeedIndexPositionToStartPublishingTweets(rssFeedItems, latestTweetMessage);
// Publish the rest of the tweets from the feed index position in chronological order.
PublishTweetsFromFeedItems(tweetinviWrapper, rssFeedItems, index);
}
