private async Task GenerateNewsletterAsync()
{
var appSettings = _configuration.Get <AppSettings>();
_logger.LogInformation("Generating newsletter.");
const string title = "Weekly Reddit";
var redditOptions = new RedditOptions
{
Username = appSettings.Reddit.Username,
Password = appSettings.Reddit.Password,
ClientId = appSettings.Reddit.ClientId,
ClientSecret = appSettings.Reddit.ClientSecret
};
_logger.LogInformation("Fetching content...");
using var redditClient = await RedditClient.CreateAsync(redditOptions);
var trendings = await redditClient.GetTrendings();
var subreddits = await redditClient.GetSubredditsTopPosts();
var subredditBatches = subreddits.Batch(25).ToList();
for (int i = 0; i < subredditBatches.Count; i++)
{
var subredditBatch = subredditBatches[i];
var countString = subredditBatches.Count < 2 ? string.Empty : $"({i + 1}/{subredditBatches.Count}) ";
_logger.LogInformation($"Generating email {countString}...");
var html = DataFormatter.GenerateHtml(new FormatterOptions
{
Subreddits = subredditBatch,
Title = title,
IssueDate = DateTime.Today,
Trendings = i == 0 ? trendings : Enumerable.Empty <RedditPost>()
});
var emailOptions = new EmailOptions
{
Password = appSettings.SmtpSettings.Password,
Username = appSettings.SmtpSettings.Username,
SmtpServer = appSettings.SmtpSettings.Server,
SmtpPort = appSettings.SmtpSettings.Port
};
_logger.LogInformation($"Sending email {countString}...");
using var emailClient = new EmailClient(emailOptions);
await emailClient.SendAsync(new EmailContent
{
Content = html,
Subject = $"{title} for {redditOptions.Username} {countString}// {DateTime.Today.ToLongDateString()}",
FromName = title,
FromAddress = appSettings.EmailSettings.FromAddress,
To = appSettings.EmailSettings.ToAddress
});
await Task.Delay(TimeSpan.FromSeconds(1)); // Prevent emails from arriving out of order.
}
_logger.LogInformation("Newsletter sent!");
}