using DSharpPlus;
using DSharpPlus.Entities;
using System.Threading.Tasks;

namespace T3k3rg0.Helpers
{
    public static class EmojiExtractor
    {
        public static async Task<DiscordEmoji?> ExtractAsync(string emojInput, DiscordClient client)
        {
            try
            {
                var unicodeEmoji = DiscordEmoji.FromUnicode(emojInput);
                return unicodeEmoji;
            }
            catch { }

            try
            {
                var namedEmoji = DiscordEmoji.FromName(client, emojInput);
                return namedEmoji;
            }
            catch { }

            try
            {
                ulong emojiId;

                // Ha teljes emojiformátumban van (pl. <:nev:123456789012345678>)
                var match = System.Text.RegularExpressions.Regex.Match(emojInput, @"<a?:\w+:(\d{17,20})>");
                if (match.Success && ulong.TryParse(match.Groups[1].Value, out emojiId))
                {
                    return DiscordEmoji.FromGuildEmote(client, emojiId);
                }

                // Ha csak simán az ID-t írta be
                if (ulong.TryParse(emojInput, out emojiId))
                {
                    return DiscordEmoji.FromGuildEmote(client, emojiId);
                }
            }
            catch { }

            return null;
        }
    }
}