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

const {
    getCookieBalance,
    changeCookies,
    claimCooldown,
    temporaryEphemeralReply
} = require("./cookieEconomy");

const {
    trackProfileEvent
} = require("./profileSystem");


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

const COLLECT_COOLDOWN =
    60 * 60;


/*
 * IMPORTANT:
 *
 * Always use exactly the same cooldown key.
 */

const COLLECT_COOLDOWN_KEY =
    "collect";


/*
 * ============================================================
 * SHOW COLLECT PAGE
 * ============================================================
 */

async function showCollectPage(
    interaction
) {
    const ownerId =
        getCollectOwner(
            interaction
        );


    if (
        ownerId !==
        interaction.user.id
    ) {
        return temporaryEphemeralReply(
            interaction,
            {
                content:
                    "This isn't your Crumb Saucer session."
            }
        );
    }


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


    const embed =
        new EmbedBuilder()
            .setTitle(
                "🍪 Crumb Saucer Cookie Bakery"
            )

            .setDescription(
                [
                    "Fresh Cookies are prepared regularly.",
                    "",
                    "Press **Collect Cookies** to claim your batch.",
                    "",
                    "Your collection cooldown is shared with `/cookies collect`."
                ].join("\n")
            )

            .addFields({
                name:
                    "Your Vault",

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

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


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

        components:
            buildCollectButtons()
    });
}


/*
 * ============================================================
 * COLLECT
 * ============================================================
 */

async function collectCookiesFromSaucer(
    interaction
) {
    const ownerId =
        getCollectOwner(
            interaction
        );


    if (
        ownerId !==
        interaction.user.id
    ) {
        return temporaryEphemeralReply(
            interaction,
            {
                content:
                    "This isn't your Crumb Saucer session."
            }
        );
    }


    /*
     * Mongo-backed cooldown.
     *
     * Same pattern as Cookie Heist:
     *
     * userId
     * guildId
     * cooldown key
     * duration
     */

    const cooldown =
        await claimCooldown(
            interaction.user.id,
            interaction.guildId,
            COLLECT_COOLDOWN_KEY,
            COLLECT_COOLDOWN
        );


    /*
     * Already collected.
     */

    if (
        !cooldown.claimed
    ) {
        const balance =
            await getCookieBalance(
                interaction.user.id
            );


        const embed =
            new EmbedBuilder()
                .setTitle(
                    "🍪 Cookie Bakery"
                )

                .setDescription(
                    [
                        "Your next batch isn't ready yet.",
                        "",
                        `Come back <t:${cooldown.next}:R>.`
                    ].join("\n")
                )

                .addFields({
                    name:
                        "Your Vault",

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

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


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

            components:
                buildCollectButtons()
        });
    }


    /*
     * ========================================================
     * GENERATE BATCH
     * ========================================================
     */

    const amount =
        Math.floor(
            Math.random() *
            1000
        )
        +
        1;


    await changeCookies(
        interaction.user.id,
        amount
    );


    /*
     * Profile / achievements.
     */

    await trackProfileEvent(
        interaction,
        interaction.user.id,
        {
            type:
                "cookie_gain",

            amount
        }
    );


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


    const embed =
        new EmbedBuilder()
            .setTitle(
                "🍪 Fresh Batch!"
            )

            .setDescription(
                [
                    `You collected **${amount.toLocaleString()} Cookies**! 🍪`,
                    "",
                    `Your next batch will be ready <t:${cooldown.next}:R>.`
                ].join("\n")
            )

            .addFields({
                name:
                    "Your Vault",

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

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


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

        components:
            buildCollectButtons()
    });
}


/*
 * ============================================================
 * BUTTONS
 * ============================================================
 */

function buildCollectButtons() {
    return [
        new ActionRowBuilder()
            .addComponents(
                new ButtonBuilder()
                    .setCustomId(
                        "crumbSaucerCollect"
                    )
                    .setLabel(
                        "Collect Cookies"
                    )
                    .setEmoji(
                        "🍪"
                    )
                    .setStyle(
                        ButtonStyle.Success
                    ),

                new ButtonBuilder()
                    .setCustomId(
                        "crumbSaucerBack"
                    )
                    .setLabel(
                        "Crumb Saucer"
                    )
                    .setEmoji(
                        "◀️"
                    )
                    .setStyle(
                        ButtonStyle.Secondary
                    )
            )
    ];
}


/*
 * ============================================================
 * OWNER
 * ============================================================
 */

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


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


    /*
     * Main menu -> Cookie Bakery.
     */

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


    /*
     * Bakery page/result.
     */

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


    return null;
}


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

module.exports = {
    showCollectPage,
    collectCookiesFromSaucer
};