SupportChild/Commands/ListOpen.cs

using System.Collections.Generic;
using System.Threading.Tasks;
using DSharpPlus.Entities;
using DSharpPlus.Interactivity;
using DSharpPlus.Interactivity.Extensions;
using DSharpPlus.SlashCommands;
using DSharpPlus.SlashCommands.Attributes;

namespace SupportChild.Commands;

public class ListOpen : ApplicationCommandModule
{
	[SlashRequireGuild]
	[SlashCommand("listopen", "Lists all open tickets, oldest first.")]
	public async Task OnExecute(InteractionContext command)
	{
		if (!Database.TryGetOpenTickets(out List<Database.Ticket> openTickets))
		{
			await command.CreateResponseAsync(new DiscordEmbedBuilder
			{
				Color = DiscordColor.Red,
				Description = "Could not fetch any open tickets."
			});
			return;
		}

		List<string> listItems = new List<string>();
		foreach (Database.Ticket ticket in openTickets)
		{
			listItems.Add("**" + ticket.DiscordRelativeTime() + ":** <#" + ticket.channelID + "> by <@" + ticket.creatorID + ">\n");
		}

		List<DiscordEmbedBuilder> embeds = new List<DiscordEmbedBuilder>();
		foreach (string message in Utilities.ParseListIntoMessages(listItems))
		{
			embeds.Add(new DiscordEmbedBuilder
			{
				Color = DiscordColor.Green,
				Description = message
			});
		}

		// Add the footers
		for (int i = 0; i < embeds.Count; i++)
		{
			embeds[i].Footer = new DiscordEmbedBuilder.EmbedFooter
			{
				Text = $"Page {i + 1} / {embeds.Count}"
			};
		}

		List<Page> listPages = new List<Page>();
		foreach (DiscordEmbedBuilder embed in embeds)
		{
			listPages.Add(new Page("", embed));
		}

		await command.Interaction.SendPaginatedResponseAsync(true, command.User, listPages);
	}
}