import { RoleCreateOptions, GuildMember, CommandInteraction, EmbedBuilder, TextChannel, ActionRowBuilder, ButtonBuilder, ButtonStyle, SlashCommandBuilder } from 'discord.js';
import { default as parseColor, Color } from 'parse-color';
import { getRoleSeperator, isColorRole } from '../lib/assignableRoles';
import * as log from '../lib/log';
import { Command } from '../types/index';

const PREVIEW_DURATION = 1000 * 60;

function removeAllColorRoles(member: GuildMember) {
  return Promise.all(member.roles.cache.map(role => {
    if (isColorRole(role.name)) {
      return member.roles.remove(role);
    }
  }));
}

async function applyColor(member: GuildMember, color: Color) {
  await removeAllColorRoles(member);

  const seperator = await getRoleSeperator('color', member.guild);
  if (!seperator) log.info('no color role seperator found');

  const roleSettings: RoleCreateOptions = {
    name: color.hex,
    color: color.rgb,
    hoist: false,
    mentionable: false,
    permissions: 0n,
  };
  if (seperator) {
    roleSettings.position = seperator.position;
  }

  const role = member.guild.roles.cache.find(role => role.name === color.hex) || await member.guild.roles.create(roleSettings);
  await member.roles.add(role);
}

export default {
  data: new SlashCommandBuilder()
    .setName('color')
    .setDescription('Change your role color.')
    .addStringOption((option) => 
      option.setName('color')
        .setDescription('Color to set. Must be a parsable HTML color. Examples include: #ff0000, rgb(50, 0, 0), red, etc.')
    )
    .addBooleanOption((option) =>
      option.setName('preview').setDescription('Preview the color instead of applying it')
    )
    .setDefaultMemberPermissions(0)
    .setDMPermission(false),

  execute: async (interaction: CommandInteraction) => {
    if (!interaction.isChatInputCommand()) return;

    const member = interaction.member! as GuildMember;

    const color = interaction.options.getString('color');
    const preview = interaction.options.getBoolean('preview');

    if (color) {
      const parsed = parseColor(color.trim());
      if (!parsed.hex) {
        interaction.reply({
          content: 'Invalid color. Try an HTML color like `#ff0000`, `rgb(50, 0, 0)`, `red`, etc.',
          ephemeral: true
        });
        return;
      }

      if (preview) {
        const embed = new EmbedBuilder();
        embed.setImage(`https://dummyimage.com/200x200/${parsed.hex.slice(1)}/${parsed.hex.slice(1)}.png`);
        embed.setTitle(`Previewing ${parsed.hex}`);

        const apply = new ButtonBuilder()
          .setLabel('Apply')
          .setStyle(ButtonStyle.Primary)
          .setCustomId(`apply-color-${parsed.hex}`);

        const row = new ActionRowBuilder<ButtonBuilder>()
          .addComponents(apply);

        const message = await interaction.reply({
          embeds: [embed],
          components: [row],
          fetchReply: true
        });

        const collector = (interaction.channel as TextChannel).createMessageComponentCollector({
          filter: (i) => i.message.id === message.id,
          time: PREVIEW_DURATION,
        });

        collector.on('collect', async (i) => {
          if (i.customId !== `apply-color-${parsed.hex}`) return;
          if (i.member === member) {
            collector.stop();
            await i.deferReply({ephemeral: false});
            row.components[0].setDisabled(true);
            await message.edit({
              embeds: [embed],
              components: [row]
            });
            await applyColor(member, parsed);
            await i.followUp({
              content: 'Color applied.'
            });
          } else {
            i.reply({
              content: 'You didn\'t run the command!',
              ephemeral: true
            });
          }
        });
      } else {
        await interaction.deferReply({
          ephemeral: true
        });
  
        await applyColor(member, parsed);
  
        interaction.followUp({
          content: 'Your color has been set.'
        });
      }
    } else {
      await removeAllColorRoles(member);
      interaction.reply({
        content: 'Removed all colors.',
        ephemeral: true
      });
    }
  }
} satisfies Command;