"use strict"

const COLORS = [
    '#7FD9E2',
    // '#8ED4F8',
    '#ADCCFF',
    // '#D1C2FC',
    '#EDBAE9',
    // '#FEB5CE',
    '#FFB7B2',
    // '#F3BE9C',
    '#DCC892',
    // '#BFD197',
    '#A0D7AA',
    // '#87DAC6',
];

// https://stackoverflow.com/a/7616484
Object.defineProperty(String.prototype, 'hashCode', {
    value: function () {
        var hash = 0, i, chr;
        for (i = 0; i < this.length; i++) {
            chr = this.charCodeAt(i);
            hash = ((hash << 5) - hash) + chr;
            hash |= 0; // Convert to 32bit integer
        }
        return hash;
    }
});

function render_scoreboard(data) {
    const users = Object.values(data.users);

    users.sort((a, b) => b.score - a.score);
    const min_score = users[users.length - 1].score,
        max_score = users[0].score;

    const tbody = document.querySelector("#scoreboard tbody");

    while (tbody.children.length) {
        tbody.removeChild(tbody.firstChild);
    }

    const template = document.querySelector("#scoreboard template");

    for (const user of users) {

        const clone = template.content.cloneNode(true);
        const name = clone.querySelector(".name"),
            score = clone.querySelector(".score"),
            bar = clone.querySelector(".bar");

        const score_percent = Math.floor(10 + (user.score - min_score) / (max_score - min_score) * 90) + "%";
        bar.style.width = score_percent;
        const color_index = ((user.uuid.hashCode() % COLORS.length) + COLORS.length) % COLORS.length;
        bar.style.backgroundColor = COLORS[color_index];

        name.innerText = user.name;
        score.innerText = user.score;

        tbody.appendChild(clone);
    }
}

async function update_scoreboard() {

    const r = await fetch('api/get_public_model', {
        method: 'POST',
        body: JSON.stringify({}),
    });

    if (r.status !== 200) {
        console.log("oh no");
        return;
    }

    const data = await r.json();
    render_scoreboard(data);
}

update_scoreboard();
// setInterval(update_scoreboard, 1000);