// utils/nutHeist.js

const {
    EmbedBuilder,
    ActionRowBuilder,
    ButtonBuilder,
    ButtonStyle,
    MessageFlags
} = require("discord.js");

const {
    getNutBalance,
    transferNuts,
    claimCooldown
} = require("./nutEconomy");


/*
 * ============================================================
 * CONFIG
 * ============================================================
 */

const HEIST_COOLDOWN =
    60 * 60;

const HEIST_ACTIONS = {
    Sneak: {
        label:
            "Sneak",

        emoji:
            "🥷",

        successChance:
            0.55,

        minReward:
            10,

        maxReward:
            100,

        minLoss:
            5,

        maxLoss:
            40
    },

    Hack: {
        label:
            "Hack",

        emoji:
            "💻",

        successChance:
            0.40,

        minReward:
            50,

        maxReward:
            250,

        minLoss:
            20,

        maxLoss:
            100
    },

    Smash: {
        label:
            "Smash",

        emoji:
            "💥",

        successChance:
            0.25,

        minReward:
            150,

        maxReward:
            500,

        minLoss:
            50,

        maxLoss:
            200
    }
};


/*
 * ============================================================
 * HELPERS
 * ============================================================
 */

function randomInteger(
    min,
    max
) {
    return Math.floor(
        Math.random() *
        (
            max -
            min +
            1
        )
    ) + min;
}


function getHeistOwner(
    interaction
) {
    const footer =
        interaction.message
            ?.embeds?.[0]
            ?.footer
            ?.text;

    const parts =
        footer?.split(":")
        ??
        [];


    /*
     * Coming from Nut Hub.
     *
     * nutHub:<userId>
     */

    if (
        parts[0] ===
        "nutHub"
    ) {
        return parts[1];
    }


    /*
     * Coming from Heist.
     *
     * nutHeist:<userId>
     */

    if (
        parts[0] ===
        "nutHeist"
    ) {
        return parts[1];
    }


    return null;
}


function buildHeistButtons() {
    return [
        new ActionRowBuilder()
            .addComponents(
                new ButtonBuilder()
                    .setCustomId(
                        "nutHeistSneak"
                    )
                    .setLabel(
                        "Sneak"
                    )
                    .setEmoji(
                        "🥷"
                    )
                    .setStyle(
                        ButtonStyle.Success
                    ),

                new ButtonBuilder()
                    .setCustomId(
                        "nutHeistHack"
                    )
                    .setLabel(
                        "Hack"
                    )
                    .setEmoji(
                        "💻"
                    )
                    .setStyle(
                        ButtonStyle.Primary
                    ),

                new ButtonBuilder()
                    .setCustomId(
                        "nutHeistSmash"
                    )
                    .setLabel(
                        "Smash"
                    )
                    .setEmoji(
                        "💥"
                    )
                    .setStyle(
                        ButtonStyle.Danger
                    )
            ),

        new ActionRowBuilder()
            .addComponents(
                new ButtonBuilder()
                    .setCustomId(
                        "nutHubBack"
                    )
                    .setLabel(
                        "Nut Hub"
                    )
                    .setEmoji(
                        "◀️"
                    )
                    .setStyle(
                        ButtonStyle.Secondary
                    )
            )
    ];
}


function buildReturnButtons() {
    return [
        new ActionRowBuilder()
            .addComponents(
                new ButtonBuilder()
                    .setCustomId(
                        "nutHubHeist"
                    )
                    .setLabel(
                        "Heist Menu"
                    )
                    .setEmoji(
                        "🏦"
                    )
                    .setStyle(
                        ButtonStyle.Primary
                    ),

                new ButtonBuilder()
                    .setCustomId(
                        "nutHubBack"
                    )
                    .setLabel(
                        "Nut Hub"
                    )
                    .setEmoji(
                        "◀️"
                    )
                    .setStyle(
                        ButtonStyle.Secondary
                    )
            )
    ];
}


/*
 * ============================================================
 * TEMPORARY EPHEMERAL MESSAGE
 * ============================================================
 */

async function temporaryEphemeralReply(
    interaction,
    options
) {
    const reply =
        await interaction.reply({
            ...options,

            flags:
                MessageFlags.Ephemeral
        });


    /*
     * Ephemeral messages cannot truly be given
     * a Discord-side expiration time.
     *
     * We attempt to delete the reply after 5 seconds.
     */

    setTimeout(
        async () => {
            try {
                await interaction.deleteReply();
            }

            catch {
                // Ignore expired/deleted interaction.
            }
        },
        5000
    );


    return reply;
}


/*
 * ============================================================
 * SHOW HEIST MENU
 * ============================================================
 */

async function showNutHeist(
    interaction
) {
    const ownerId =
        getHeistOwner(
            interaction
        );


    if (
        ownerId !==
        interaction.user.id
    ) {
        return temporaryEphemeralReply(
            interaction,
            {
                content:
                    "Das ist nicht deine Nut-Hub-Session."
            }
        );
    }


    await interaction.deferUpdate();


    const balance =
        await getNutBalance(
            interaction.user.id
        );


    const embed =
        new EmbedBuilder()
            .setTitle(
                "🏦 Nut Vault Heist"
            )

            .setDescription(
                [
                    "Arthonor bewacht seinen Vorrat an Nüssen.",
                    "",
                    "Wähle deinen Ansatz.",
                    "",
                    "### 🥷 Sneak",
                    "**55%** Erfolgschance",
                    "Kleine Beute, geringes Risiko.",
                    "",
                    "### 💻 Hack",
                    "**40%** Erfolgschance",
                    "Mittlere Beute, mittleres Risiko.",
                    "",
                    "### 💥 Smash",
                    "**25%** Erfolgschance",
                    "Große Beute, hohes Risiko.",
                    "",
                    `Ein Heist hat **${Math.floor(HEIST_COOLDOWN / 60)} Minuten Cooldown**.`
                ].join("\n")
            )

            .addFields({
                name:
                    "Deine Nüsse",

                value:
                    `**${balance.toLocaleString()} 🥜**`
            })

            .setFooter({
                text:
                    `nutHeist:${interaction.user.id}`
            });


    return interaction.editReply({
        embeds: [
            embed
        ],

        components:
            buildHeistButtons()
    });
}


/*
 * ============================================================
 * PERFORM HEIST
 * ============================================================
 */

async function performNutHeist(
    interaction,
    actionName
) {
    const ownerId =
        getHeistOwner(
            interaction
        );


    /*
     * Prevent another player from using
     * somebody else's Heist menu.
     */

    if (
        ownerId !==
        interaction.user.id
    ) {
        return temporaryEphemeralReply(
            interaction,
            {
                content:
                    "Das ist nicht dein Heist."
            }
        );
    }


    const action =
        HEIST_ACTIONS[
            actionName
        ];


    if (
        !action
    ) {
        return temporaryEphemeralReply(
            interaction,
            {
                content:
                    "Unbekannte Heist-Aktion."
            }
        );
    }


    /*
     * Acknowledge immediately.
     */

    await interaction.deferUpdate();


    /*
     * ========================================================
     * CLAIM SHARED HEIST COOLDOWN
     * ========================================================
     *
     * Sneak / Hack / Smash all use the same field:
     *
     * items_cooldowns
     *
     * {
     *     userId: "...",
     *     nut: ...,
     *     heist: ...
     * }
     */

    const cooldown =
        await claimCooldown(
            interaction.user.id,
            "heist",
            HEIST_COOLDOWN
        );


    if (
        !cooldown.claimed
    ) {
        const embed =
            new EmbedBuilder()
                .setTitle(
                    "🏦 Vault Locked Down"
                )

                .setDescription(
                    [
                        "Arthonor ist noch auf der Hut.",
                        "",
                        `Du kannst <t:${cooldown.next}:R> wieder einen Heist versuchen.`
                    ].join("\n")
                )

                .setFooter({
                    text:
                        `nutHeist:${interaction.user.id}`
                });


        return interaction.editReply({
            embeds: [
                embed
            ],

            components:
                buildReturnButtons()
        });
    }


    /*
     * ========================================================
     * ROLL RESULT
     * ========================================================
     */

    const success =
        Math.random() <
        action.successChance;


    const playerId =
        interaction.user.id;


    /*
     * Arthonor himself acts as the vault.
     */

    const vaultId =
        interaction.client.user.id;


    /*
     * ========================================================
     * SUCCESS
     * ========================================================
     */

    if (
        success
    ) {
        let reward =
            randomInteger(
                action.minReward,
                action.maxReward
            );


        /*
         * Never steal more Nuts than
         * Arthonor currently owns.
         */

        const vaultBalance =
            await getNutBalance(
                vaultId
            );


        reward =
            Math.min(
                reward,
                vaultBalance
            );


        if (
            reward <=
            0
        ) {
            const embed =
                new EmbedBuilder()
                    .setTitle(
                        "🏦 The Vault Is Empty"
                    )

                    .setDescription(
                        [
                            `${action.emoji} **${action.label}** succeeded...`,
                            "",
                            "but Arthonor's Nut stash is empty.",
                            "",
                            "You escape with nothing."
                        ].join("\n")
                    )

                    .setFooter({
                        text:
                            `nutHeist:${playerId}`
                    });


            return interaction.editReply({
                embeds: [
                    embed
                ],

                components:
                    buildReturnButtons()
            });
        }


        await transferNuts(
            vaultId,
            playerId,
            reward
        );


        const balance =
            await getNutBalance(
                playerId
            );


        const embed =
            new EmbedBuilder()
                .setTitle(
                    "💰 Heist Successful!"
                )

                .setDescription(
                    [
                        `${action.emoji} **${action.label}** worked!`,
                        "",
                        `You stole **${reward.toLocaleString()} 🥜** from Arthonor's stash.`
                    ].join("\n")
                )

                .addFields({
                    name:
                        "Deine Nüsse",

                    value:
                        `**${balance.toLocaleString()} 🥜**`
                })

                .setFooter({
                    text:
                        `nutHeist:${playerId}`
                });


        return interaction.editReply({
            embeds: [
                embed
            ],

            components:
                buildReturnButtons()
        });
    }


    /*
     * ========================================================
     * FAILURE
     * ========================================================
     */

    let loss =
        randomInteger(
            action.minLoss,
            action.maxLoss
        );


    /*
     * Don't take more than the player owns.
     */

    const playerBalance =
        await getNutBalance(
            playerId
        );


    loss =
        Math.min(
            loss,
            playerBalance
        );


    if (
        loss >
        0
    ) {
        await transferNuts(
            playerId,
            vaultId,
            loss
        );
    }


    const balance =
        await getNutBalance(
            playerId
        );


    const embed =
        new EmbedBuilder()
            .setTitle(
                "🚨 Heist Failed!"
            )

            .setDescription(
                loss > 0
                    ? [
                        `${action.emoji} **${action.label}** went wrong.`,
                        "",
                        "Arthonor caught you.",
                        "",
                        `You lost **${loss.toLocaleString()} 🥜**.`
                    ].join("\n")

                    : [
                        `${action.emoji} **${action.label}** went wrong.`,
                        "",
                        "Arthonor caught you...",
                        "",
                        "but you didn't have any Nuts for him to take."
                    ].join("\n")
            )

            .addFields({
                name:
                    "Deine Nüsse",

                value:
                    `**${balance.toLocaleString()} 🥜**`
            })

            .setFooter({
                text:
                    `nutHeist:${playerId}`
            });


    return interaction.editReply({
        embeds: [
            embed
        ],

        components:
            buildReturnButtons()
    });
}


/*
 * ============================================================
 * EXPORTS
 * ============================================================
 */

module.exports = {
    showNutHeist,
    performNutHeist
};