import { ChatInputCommandInteraction, PermissionFlagsBits, SlashCommandBuilder } from "discord.js";
import { database, Badword } from "../data";
import { IsNull } from "typeorm";
import { getGuildSetting } from "../tools/data";
import getDefaultEmbed, { getFailedEmbed, getSuccessEmbed } from "../tools/defaultEmbeds";
import { getGuildChannel } from "../tools/discord";
import { Color, Emoji } from "../tools/design";
import { execute as showBlocklistRunner } from "./showblocklist";

const builder = new SlashCommandBuilder();
builder.setName("blocklist");
builder.setDescription("Configures the servers blocklist");
builder.setDefaultMemberPermissions(PermissionFlagsBits.ManageGuild);
builder.setDMPermission(false);
builder.addSubcommand((builder) => {
    builder.setName("add");
    builder.setDescription("Adds a word to the servers blocklist");
    builder.addStringOption((option) => {
        option.setName("word");
        option.setDescription("The word to add");
        option.setRequired(true);
        option.setMaxLength(50);
        return option;
    });
    return builder;
});
builder.addSubcommand((builder) => {
    builder.setName("remove");
    builder.setDescription("Removes a word from the servers blocklist");
    builder.addStringOption((option) => {
        option.setName("word");
        option.setDescription("The word to remove");
        option.setRequired(true);
        option.setMaxLength(50);
        return option;
    });
    return builder;
});
builder.addSubcommand((builder) => {
    builder.setName("get");
    builder.setDescription("Returns all words from the servers blocklist");
    return builder;
});

async function execute(interaction: ChatInputCommandInteraction): Promise<void> {
    if (!interaction.guildId) throw new Error("Command was executed in DM context");

    const settings = await getGuildSetting(interaction.guildId);

    const logChannel = settings.notificationChannelID ? await getGuildChannel(interaction.guildId, settings.notificationChannelID) : null;

    switch (interaction.options.getSubcommand(true)) {
        case "get": {
            await showBlocklistRunner(interaction);
            break;
        }

        case "add": {
            const count = await database.getRepository(Badword).count({
                where: {
                    guildID: interaction.guildId
                }
            });

            const limit = 100;
            if (count >= limit) {
                const embed = getFailedEmbed();
                embed.setDescription(`You reached the word limit for your guild. Please delete a word before adding a new one`);
                interaction.reply({
                    embeds: [embed],
                    ephemeral: true
                }).catch(() => {});
                return;
            }

            const word = interaction.options.getString("word", true).toLowerCase();

            const exists = await database.getRepository(Badword).count({
                where: [
                    {guildID: interaction.guildId, value: word},
                    {guildID: IsNull(), value: word}
                ]
            }) > 0;

            if (exists) {
                const embed = getFailedEmbed();
                embed.setDescription(`"${word}" already exists in the blocklist`);
                interaction.reply({
                    embeds: [embed],
                    ephemeral: true
                }).catch(() => {});
                return;
            }

            const entry = new Badword();
            entry.guildID = interaction.guildId;
            entry.value = word;

            await database.getRepository(Badword).save(entry);

            const embed = getSuccessEmbed();
            embed.setDescription(`"${word}" has been added to the blocklist`);
            interaction.reply({
                embeds: [embed],
                ephemeral: true
            });

            const logMessage = getDefaultEmbed();
            logMessage.setTitle(`${Emoji.SETTINGS} Word added`);
            logMessage.setColor(Color.INFORMING_BLUE);
            logMessage.setDescription(`"||${word}||" has been added to the blocklist`);
            logMessage.addFields({
                name: "This action was performed by",
                value: `${interaction.user.tag} (${interaction.user.id})`
            });
            if (logChannel && logChannel.isTextBased()) {
                logChannel.send({
                    embeds: [logMessage]
                }).catch(() => {});
            }
            break;
        }

        case "remove": {
            const word = interaction.options.getString("word", true).toLowerCase();

            const entry = await database.getRepository(Badword).findOne({
                where: {
                    guildID: interaction.guildId,
                    value: word
                }
            });

            if (!entry) {
                const embed = getFailedEmbed();
                embed.setDescription(`"${word}" was not found in the blocklist`);
                interaction.reply({
                    embeds: [embed],
                    ephemeral: true
                }).catch(() => {});
                return;
            }

            await database.getRepository(Badword).delete({
                id: entry.id
            });

            const embed = getSuccessEmbed();
            embed.setDescription(`"${word}" has been removed from the blocklist`);
            interaction.reply({
                embeds: [embed],
                ephemeral: true
            }).catch(() => {});

            const logMessage = getDefaultEmbed();
            logMessage.setTitle(`${Emoji.SETTINGS} Word removed`);
            logMessage.setColor(Color.INFORMING_BLUE);
            logMessage.setDescription(`"||${word}||" has been removed from the blocklist`);
            logMessage.addFields({
                name: "This action was performed by",
                value: `${interaction.user.tag} (${interaction.user.id})`
            });
            if (logChannel && logChannel.isTextBased()) {
                logChannel.send({
                    embeds: [logMessage]
                }).catch(() => {});
            }
            break;
        }

        default: {
            throw new Error(`"${interaction.options.getSubcommand(true)}" cannot be executed`);
        }
    }
}

export {
    builder,
    execute
}