import { CommandInteraction, GuildMember, MessageActionRow, MessageButton } from "discord.js";
import type { SlashCommandSubcommandBuilder } from "@discordjs/builders";
import confirmationMessage from "../../utils/confirmationMessage.js";
import EmojiEmbed from "../../utils/generateEmojiEmbed.js";
import keyValueList from "../../utils/generateKeyValueList.js";
import addPlurals from "../../utils/plurals.js";
import client from "../../utils/client.js";

const command = (builder: SlashCommandSubcommandBuilder) =>
    builder
        .setName("ban")
        .setDescription("Bans a user from the server")
        .addUserOption((option) => option.setName("user").setDescription("The user to ban").setRequired(true))
        .addNumberOption((option) =>
            option
                .setName("delete")
                .setDescription("The days of messages to delete | Default: 0")
                .setMinValue(0)
                .setMaxValue(7)
                .setRequired(false)
        );

const callback = async (interaction: CommandInteraction): Promise<void> => {
    const { renderUser } = client.logger;
    // TODO:[Modals] Replace this with a modal
    let reason = null;
    let notify = true;
    let confirmation;
    let cancelled = false;
    let timedOut = false;
    while (!timedOut && !cancelled) {
        confirmation = await new confirmationMessage(interaction)
            .setEmoji("PUNISH.BAN.RED")
            .setTitle("Ban")
            .setDescription(
                keyValueList({
                    user: renderUser(interaction.options.getUser("user")),
                    reason: reason ? "\n> " + (reason ?? "").replaceAll("\n", "\n> ") : "*No reason provided*"
                }) +
                    `The user **will${notify ? "" : " not"}** be notified\n` +
                    `${addPlurals(
                        interaction.options.getInteger("delete") ? interaction.options.getInteger("delete") : 0,
                        "day"
                    )} of messages will be deleted\n\n` +
                    `Are you sure you want to ban <@!${(interaction.options.getMember("user") as GuildMember).id}>?`
            )
            .setColor("Danger")
            .addReasonButton(reason ?? "")
            .send(reason !== null);
        reason = reason ?? "";
        if (confirmation.cancelled) timedOut = true;
        else if (confirmation.success) cancelled = true;
        else if (confirmation.newReason) reason = confirmation.newReason;
        else if (confirmation.components) notify = confirmation.components.notify.active;
    }
    if (timedOut) return;
    let dmd = false;
    let dm;
    const config = await client.database.guilds.read(interaction.guild.id);
    try {
        if (notify) {
            dm = await (interaction.options.getMember("user") as GuildMember).send({
                embeds: [
                    new EmojiEmbed()
                        .setEmoji("PUNISH.BAN.RED")
                        .setTitle("Banned")
                        .setDescription(
                            `You have been banned in ${interaction.guild.name}` + (reason ? ` for:\n> ${reason}` : ".")
                        )
                        .setStatus("Danger")
                ],
                components: [
                    new MessageActionRow().addComponents(
                        config.moderation.ban.text
                            ? [
                                  new MessageButton()
                                      .setStyle("LINK")
                                      .setLabel(config.moderation.ban.text)
                                      .setURL(config.moderation.ban.link)
                              ]
                            : []
                    )
                ]
            });
            dmd = true;
        }
    } catch {
        dmd = false;
    }
    try {
        const member = interaction.options.getMember("user") as GuildMember;
        member.ban({
            days: Number(interaction.options.getNumber("delete") ?? 0),
            reason: reason ?? "No reason provided"
        });
        await client.database.history.create("ban", interaction.guild.id, member.user, interaction.user, reason);
        const { log, NucleusColors, entry, renderUser, renderDelta } = client.logger;
        const data = {
            meta: {
                type: "memberBan",
                displayName: "Member Banned",
                calculateType: "guildMemberPunish",
                color: NucleusColors.red,
                emoji: "PUNISH.BAN.RED",
                timestamp: new Date().getTime()
            },
            list: {
                memberId: entry(member.user.id, `\`${member.user.id}\``),
                name: entry(member.user.id, renderUser(member.user)),
                banned: entry(new Date().getTime(), renderDelta(new Date().getTime())),
                bannedBy: entry(interaction.user.id, renderUser(interaction.user)),
                reason: entry(reason, reason ? `\n> ${reason}` : "*No reason provided.*"),
                accountCreated: entry(member.user.createdAt, renderDelta(member.user.createdAt)),
                serverMemberCount: interaction.guild.memberCount
            },
            hidden: {
                guild: interaction.guild.id
            }
        };
        log(data);
    } catch {
        await interaction.editReply({
            embeds: [
                new EmojiEmbed()
                    .setEmoji("PUNISH.BAN.RED")
                    .setTitle("Ban")
                    .setDescription("Something went wrong and the user was not banned")
                    .setStatus("Danger")
            ],
            components: []
        });
        if (dmd) await dm.delete();
        return;
    }
    const failed = !dmd && notify;
    await interaction.editReply({
        embeds: [
            new EmojiEmbed()
                .setEmoji(`PUNISH.BAN.${failed ? "YELLOW" : "GREEN"}`)
                .setTitle("Ban")
                .setDescription("The member was banned" + (failed ? ", but could not be notified" : ""))
                .setStatus(failed ? "Warning" : "Success")
        ],
        components: []
    });
};

const check = (interaction: CommandInteraction) => {
    const member = interaction.member as GuildMember;
    const me = interaction.guild.me!;
    const apply = interaction.options.getMember("user") as GuildMember;
    if (member === null || me === null || apply === null) throw new Error("That member is not in the server");
    const memberPos = member.roles ? member.roles.highest.position : 0;
    const mePos = me.roles ? me.roles.highest.position : 0;
    const applyPos = apply.roles ? apply.roles.highest.position : 0;
    // Do not allow banning the owner
    if (member.id === interaction.guild.ownerId) throw new Error("You cannot ban the owner of the server");
    // Check if Nucleus can ban the member
    if (!(mePos > applyPos)) throw new Error("I do not have a role higher than that member");
    // Check if Nucleus has permission to ban
    if (!me.permissions.has("BAN_MEMBERS")) throw new Error("I do not have the *Ban Members* permission");
    // Do not allow banning Nucleus
    if (member.id === interaction.guild.me.id) throw new Error("I cannot ban myself");
    // Allow the owner to ban anyone
    if (member.id === interaction.guild.ownerId) return true;
    // Check if the user has ban_members permission
    if (!member.permissions.has("BAN_MEMBERS")) throw new Error("You do not have the *Ban Members* permission");
    // Check if the user is below on the role list
    if (!(memberPos > applyPos)) throw new Error("You do not have a role higher than that member");
    // Allow ban
    return true;
};

export { command, callback, check };