const { SlashCommandBuilder } = require('discord.js');

module.exports = {
    data: new SlashCommandBuilder()
         .setName('add')
         .setDescription("Add an external emoji in the server.")
         .addSubcommand(subcommand => subcommand
         .setName('emoji')
         .setDescription("Add an external emoji in the server.")
      .addStringOption(option => option
      .setName('emoji')
      .setDescription("The emoji.")
      .setRequired(true))
  .addStringOption(option => option
  .setName('name')
  .setDescription("The emoji name."))),

   async execute(interaction) {

       if (!interaction.guild.members.me.permissions.has(PermissionsBitField.Flags.ManageGuildExpressions)) return await interaction.reply({ content: "I don't have permission to execute this command!", ephemeral: true });

            await interaction.deferReply({ ephemeral: true });

            let emoji = interaction.options.getString('emoji')?.trim();

            const parseEmoji = (text) => {

                if (text.includes('%')) text = decodeURIComponent(text);
                else if (!text.includes(':')) return { animated: false, name: text, id: undefined };

                let match = text.match(/<?(?:(a):)?(\w{2,32}):(\d{17,19})?>?/);

                return match && { animated: Boolean(match[1]), name: match[2], id: match[3] };

            };

            try {

                let customEmoji = parseEmoji(emoji);
                let emojiName = interaction.options.getString('name') || customEmoji.name;
                let format = 'png';

                if (customEmoji.animated) format = 'gif';
                else if (emoji.startsWith('<') && emoji.endsWith('>')) emoji = `https://cdn.discordapp.com/emojis/${customEmoji.id}.${format}?quality=lossless`;
                else if (!emoji.startsWith('https') || !emoji.startsWith('http') || !customEmoji.id) return await interaction.editReply({ content: "Please provide a valid **discord** emoji!" });

                await interaction.guild.emojis.create({ attachment: emoji, name: emojiName.replace(/\s+/g, '_') }).then(async (e) => {
                    await interaction.editReply({ content: `Successfully added **${e}** to the server!` });
                });

            } catch (error) {
                await interaction.editReply({ content: "Something went wrong! This might be due to:\n\n1: Emoji slots being full.\n2: An invalid (or a default) emoji may be provided.\n3: Emoji name with unknown characters may be provided (only alphabets, numbers & underscores are allowed)." });
            }

        }

    },

};