// SPDX-License-Identifier: GPL-3.0-or-later
/*
    Animal Rights Advocates Discord Bot
    Copyright (C) 2023  Anthony Berg

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

import { Args, Command, RegisterBehavior } from '@sapphire/framework';
import type { Guild, User, Message } from 'discord.js';
import IDs from '#utils/ids';
import { roleAddLog, roleRemoveLog } from '#utils/logging/role';

export class ARAVeganCommand extends Command {
  public constructor(context: Command.Context, options: Command.Options) {
    super(context, {
      ...options,
      name: 'aravegan',
      description: 'Gives the ara vegan role',
      preconditions: [
        ['ModCoordinatorOnly', 'VerifierCoordinatorOnly', 'VerifierOnly'],
      ],
    });
  }

  // Registers that this is a slash command
  public override registerApplicationCommands(registry: Command.Registry) {
    registry.registerChatInputCommand(
      (builder) =>
        builder
          .setName(this.name)
          .setDescription(this.description)
          .addUserOption((option) =>
            option
              .setName('user')
              .setDescription('User to give vegan role to')
              .setRequired(true),
          ),
      {
        behaviorWhenNotIdentical: RegisterBehavior.Overwrite,
      },
    );
  }

  // Command run
  public async chatInputRun(interaction: Command.ChatInputCommandInteraction) {
    // Get the arguments
    const user = interaction.options.getUser('user', true);
    const mod = interaction.user;
    const { guild } = interaction;

    // Checks if all the variables are of the right type
    if (guild === null) {
      await interaction.reply({
        content: 'Error fetching guild!',
        ephemeral: true,
        fetchReply: true,
      });
      return;
    }

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

    const info = await this.manageVegan(user, mod, guild);

    await interaction.editReply(info.message);
  }

  public async messageRun(message: Message, args: Args) {
    // Get arguments
    let user: User;
    try {
      user = await args.pick('user');
    } catch {
      await message.react('❌');
      await message.reply('User was not provided!');
      return;
    }

    const mod = message.author;

    if (mod === null) {
      await message.react('❌');
      await message.reply('Staff not found! Try again or contact a developer!');
      return;
    }

    const { guild } = message;

    if (guild === null) {
      await message.react('❌');
      await message.reply('Guild not found! Try again or contact a developer!');
      return;
    }

    const info = await this.manageVegan(user, mod, guild);

    await message.reply(info.message);
    await message.react(info.success ? '✅' : '❌');
  }

  private async manageVegan(user: User, mod: User, guild: Guild) {
    const info = {
      message: '',
      success: false,
    };
    const member = guild.members.cache.get(user.id);
    const modMember = guild.members.cache.get(mod.id);
    const vegan = guild.roles.cache.get(IDs.roles.vegan.araVegan);

    // Checks if user's GuildMember was found in cache
    if (member === undefined) {
      info.message = 'Error fetching guild member for the user!';
      return info;
    }

    if (modMember === undefined) {
      info.message = "Error fetching the staff's guild member!";
      return info;
    }

    if (vegan === undefined) {
      info.message = 'Error fetching vegan role from cache!';
      return info;
    }

    // Checks if the user is an ARA Vegan and to give them or remove them based on if they have it
    if (member.roles.cache.has(IDs.roles.vegan.araVegan)) {
      if (
        !modMember.roles.cache.hasAny(
          IDs.roles.staff.verifierCoordinator,
          IDs.roles.staff.modCoordinator,
        )
      ) {
        info.message =
          'You need to be a verifier coordinator to remove these roles!';
        return info;
      }

      // Remove the ARA Vegan role from the user
      await member.roles.remove(vegan);
      await roleRemoveLog(user.id, mod.id, vegan);
      info.message = `Removed the ${vegan.name} role from ${user}`;
      info.success = true;
      return info;
    }

    // Check if the user is vegan before giving the ARA Vegan role
    if (!member.roles.cache.has(IDs.roles.vegan.vegan)) {
      info.message = 'The user needs to be vegan to get the ARA vegan role!';
      return info;
    }

    // Add ARA Vegan role to the user
    await member.roles.add([vegan]);
    await roleAddLog(user.id, mod.id, vegan);
    info.message = `Gave ${user} the ${vegan.name} role!`;

    await user
      .send(`You have been given the ${vegan.name} role by ${mod}!`)
      .catch(() => {});
    info.success = true;
    return info;
  }
}