import { ActionRowBuilder, ButtonBuilder, ButtonStyle, ChannelType, ComponentType, EmbedBuilder, StringSelectMenuBuilder, type Client, type MessageCreateOptions } from "discord.js";
import { createLogger } from "@lbf-bot/utils";
import { env } from "~/env";
import { checkForNewQuest, type QuestResult } from "~/wov";
import { getAccountBalance, setAccountBalance } from "~/economy";

const logger = createLogger({ prefix: "quests" });

export const makeResultEmbed = async (result: QuestResult, exclude: Array<string>): Promise<MessageCreateOptions> => {
    const imageUrl     = result.quest.promoImageUrl;
    const color        = parseInt(result.quest.promoImagePrimaryColor.substring(1), 16);
    const participants = result.participants.toSorted((a, b) => b.xp - a.xp);

    let rewardsEmbed: EmbedBuilder | undefined;
    if (env.QUEST_REWARDS) {
        const rewarded = participants
            .map((x) => ({ id: x.playerId, username: x.username }))
            .filter((x) => !exclude.includes(x.username));
        const medals = ["🥇", "🥈", "🥉"].concat(new Array(rewarded.length).fill("🏅"));

        const rewards = rewarded
            .slice(0, Math.min(rewarded.length, env.QUEST_REWARDS.length))
            .map((x, i) => `- ${medals[i]} ${x.username} - ${env.QUEST_REWARDS![i]} ${env.QUEST_REWARDS_ARE_GEMS ? "gemmes" : ""}`);

        if (env.QUEST_REWARDS_ARE_GEMS) {
            const arr = rewarded.slice(0, Math.min(rewarded.length, env.QUEST_REWARDS.length));
            for (let i = 0; i < arr.length; i++) {
                const balance = await getAccountBalance(arr[i].id);
                await setAccountBalance(arr[i].id, balance + parseInt(env.QUEST_REWARDS[i]));
            }
        }

        rewardsEmbed = new EmbedBuilder()
            .setTitle("Récompenses")
            .setDescription(rewards.join("\n"))
            .setColor(color);
    }

    return {
        content: `-# ||${env.DISCORD_MENTION}||`,
        embeds: [
            new EmbedBuilder()
                .setDescription(`# Résultats de quête\n\nMerci à toutes et à tous d'avoir participé 🫡`)
                .setColor(color)
                .setImage(imageUrl),
            ...(rewardsEmbed ? [rewardsEmbed] : []),
            new EmbedBuilder()
                .setTitle("Classement")
                .setColor(color)
                .setDescription(participants
                    .filter((x) => !exclude.includes(x.username) && x.xp > 0)
                    .filter((_, i) => i < 8)
                    .map((p, i) => `${i + 1}. ${p.username} - ${p.xp}xp`)
                    .join("\n"),
                ),
        ],
    };
};

export const askForGrinders = async (quest: QuestResult, client: Client) => {
    const adminChannel = await client.channels.fetch(env.DISCORD_ADMIN_CHANNEL);
    if (!adminChannel || adminChannel.type !== ChannelType.GuildText) {
        return logger.fatal("Invalid 'DISCORD_ADMIN_CHANNEL'");
    }

    let exclude: string[] = [];
    if (env.QUEST_REWARDS) {
        const color = parseInt(quest.quest.promoImagePrimaryColor.substring(1), 16);

        const top10 = quest.participants
            .filter((x) => !env.QUEST_EXCLUDE.includes(x.username) && x.xp > 0)
            .sort((a, b) => b.xp - a.xp)
            .slice(0, 10);

        if (!top10.length) {
            logger.error("No eligible participants for grinder selection");
            return;
        }

        const selectOptions = top10
            .map((p) => ({ label: `${p.username} (${p.xp}xp)`, value: p.username }));

        const row1 = new ActionRowBuilder<StringSelectMenuBuilder>().addComponents(
            new StringSelectMenuBuilder()
                .setCustomId("grinders")
                .setPlaceholder("Sélectionne les tricheurs")
                .setMinValues(0)
                .setMaxValues(selectOptions.length)
                .addOptions(selectOptions),
        );

        const row2 = new ActionRowBuilder<ButtonBuilder>().addComponents(
            new ButtonBuilder()
                .setCustomId("validate")
                .setLabel("Valider")
                .setStyle(ButtonStyle.Primary),
        );

        const top10Text = top10
            .map((p, i) => `${i + 1}. ${p.username} - ${p.xp}xp`)
            .join("\n");

        const msg = await adminChannel.send({
            content: `-# ||${env.DISCORD_ADMIN_MENTION}||`,
            embeds: [
                new EmbedBuilder()
                    .setTitle("Quête terminée !")
                    .setColor(color),
                new EmbedBuilder()
                    .setTitle("Top 10 XP")
                    .setDescription(top10Text)
                    .setColor(color),
                new EmbedBuilder()
                    .setTitle("Qui a grind ?")
                    .setDescription("Sélectionne les joueurs qui ont grind (tricheurs en gros), puis clique sur **Valider**.")
                    .setColor(color),
            ],
            components: [row1, row2],
        });

        let grinders: string[] = [];

        let done = false;
        while (!done) {
            const interaction = await msg.awaitMessageComponent({ filter: (i) => !i.user.bot });

            if (interaction.componentType === ComponentType.StringSelect) {
                grinders = interaction.values;
                await interaction.deferUpdate();
            } else if (interaction.componentType === ComponentType.Button && interaction.customId === "validate") {
                await interaction.update({ components: [] });
                done = true;
            }
        }

        exclude = grinders;
    }

    const embed = await makeResultEmbed(quest, [...env.QUEST_EXCLUDE, ...exclude]);
    const rewardChannel = await client.channels.fetch(env.DISCORD_REWARDS_CHANNEL);
    if (!rewardChannel || rewardChannel.type !== ChannelType.GuildText) {
        return logger.fatal("Invalid 'DISCORD_REWARDS_CHANNEL'");
    }

    await rewardChannel.send(embed);

    if (env.QUEST_EXCLUDE) await adminChannel.send("Envoyé !");
    logger.info(`Results posted at: ${new Date().toISOString()}`);
};

export const questCheckCron = async (client: Client) => {
    logger.info("Checking for new quest");
    const quest = await checkForNewQuest();
    if (quest) {
        logger.info(`New quest found: '${quest.quest.id}'`);
        await askForGrinders(quest, client);
    } else {
        logger.info("No new quest found");
    }
};