public DiscordEmbed Build(LaunchNotification launchNotification)
{
var oldLaunchState = launchNotification.OldLaunchState;
var launch = launchNotification.NewLaunchState;
var embed = new DiscordEmbedBuilder
{
Color = new DiscordColor(Constants.EmbedColor),
Thumbnail = new DiscordEmbedBuilder.EmbedThumbnail
{
Url = launch.Links.Patch.Large ?? Constants.SpaceXLogoImage
}
};
var launchTme = launch.DateUtc ?? DateTime.MinValue;
var now = DateTime.Now.ToUniversalTime();
var timeLeft = (launchTme - now).TotalMinutes;
switch (launchNotification.Type)
{
case LaunchNotificationType.Reminder:
{
var timeLeftDescription = timeLeft > 60 ? Math.Ceiling(timeLeft / 60) + " hours" : Math.Ceiling(timeLeft) + " minutes";
var descriptionBuilder = new StringBuilder();
descriptionBuilder.Append($"**{timeLeftDescription}** to launch **{launch.Name}**! ");
descriptionBuilder.Append($"Type `e!NextLaunch` to get more information.");
embed.Title = ":rocket: Launch is coming!";
embed.Description = descriptionBuilder.ToString();
break;
}
case LaunchNotificationType.Scrub:
{
var oldLaunchDate = DateFormatter.GetDateStringWithPrecision(
oldLaunchState.DateUtc ?? DateTime.MinValue,
oldLaunchState.DatePrecision ?? DatePrecision.Year,
true, true, true);
var newLaunchDate = DateFormatter.GetDateStringWithPrecision(
launch.DateUtc ?? DateTime.MinValue,
launch.DatePrecision ?? DatePrecision.Year,
true, true, true);
var descriptionBuilder = new StringBuilder();
descriptionBuilder.Append($"**{launch.Name}** launch time has been changed from ");
descriptionBuilder.Append($"**{oldLaunchDate}** to ");
descriptionBuilder.Append($"**{newLaunchDate}**. ");
descriptionBuilder.Append($"Type `e!NextLaunch` to get more information.");
embed.Title = ":warning: Scrub!";
embed.Description = descriptionBuilder.ToString();
break;
}
case LaunchNotificationType.NewTarget:
{
var nextLaunchDate = DateFormatter.GetDateStringWithPrecision(
launchNotification.NewLaunchState.DateUtc ?? DateTime.MinValue,
launchNotification.NewLaunchState.DatePrecision ?? DatePrecision.Year,
true, true, true);
var descriptionBuilder = new StringBuilder();
descriptionBuilder.Append($"The next launch will be **{launchNotification.NewLaunchState.Name}** on **{nextLaunchDate}**. ");
descriptionBuilder.Append($"Type `e!NextLaunch` to get more information.");
embed.Title = ":rocket: New target!";
embed.Description = descriptionBuilder.ToString();
break;
}
}
embed.AddField("\u200b", "*Click the reaction below to subscribe this flight and be notified on DM 10 minutes before the launch.*");
return(embed);
}
private async void LaunchNotificationsOnLaunchNotificationAsync(object sender, LaunchNotification launchNotification)
{
var embed = _launchNotificationEmbedBuilder.Build(launchNotification);
var channels = _subscriptionsService.GetSubscribedChannels(SubscriptionType.NextLaunch);
var launchTime = launchNotification.NewLaunchState.DateUtc ?? DateTime.MinValue;
if (launchTime == DateTime.MinValue)
{
return;
}
var timeLeft = (launchTime - DateTime.Now.ToUniversalTime()).TotalMinutes;
var stopwatch = Stopwatch.StartNew();
foreach (var channelData in channels)
{
try
{
var channel = await Bot.Client.GetChannelAsync(ulong.Parse(channelData.ChannelId));
var sentMessage = await channel.SendMessageAsync(string.Empty, false, embed);
await sentMessage.CreateReactionAsync(DiscordEmoji.FromName(Bot.Client, ":regional_indicator_s:"));
await _launchNotificationsService.AddMessageToSubscribe(channel, sentMessage);
if (launchNotification.Type == LaunchNotificationType.Reminder && timeLeft < 60 && launchNotification.NewLaunchState.Links.Webcast != null)
{
await channel.SendMessageAsync($"**YouTube stream:** {launchNotification.NewLaunchState.Links.Webcast}");
}
}
catch (UnauthorizedException ex)
{
await _subscriptionsService.RemoveAllSubscriptionsFromChannelAsync(ulong.Parse(channelData.ChannelId));
try
{
var guild = await Bot.Client.GetGuildAsync(ulong.Parse(channelData.GuildId));
var guildOwner = guild.Owner;
_logger.Warn($"No permissions to send message to channel [{channelData.ChannelId}], " +
$"removing all subscriptions and sending message to {guildOwner.Username} [{guildOwner.Id}]");
_logger.Warn($"JSON: {ex.JsonMessage}");
var ownerDm = await guildOwner.CreateDmChannelAsync();
var errorEmbed = _launchNotificationEmbedBuilder.BuildUnauthorizedError();
await ownerDm.SendMessageAsync(embed : errorEmbed);
}
catch (Exception e)
{
_logger.Fatal(e);
}
}
catch (NotFoundException ex)
{
_logger.Warn($"Channel [{channelData.ChannelId}] not found, removing all subscriptions");
_logger.Warn($"JSON: {ex.JsonMessage}");
await _subscriptionsService.RemoveAllSubscriptionsFromChannelAsync(ulong.Parse(channelData.ChannelId));
}
catch (Exception ex)
{
_logger.Error(ex, $"Can't send launch notification to the channel with id [{channelData.ChannelId}]");
}
}
_logger.Info($"Launch notifications sent to {channels.Count} channels " +
$"in {stopwatch.Elapsed.TotalSeconds:0.0} seconds");
}
