'use strict';

/*
 * Écrit par Hédy GIRAUDEAU
 *
 */

/* eslint-env browser */
/* exported check */

function check(id/*, tab*/) {
    const fieldQCM = document.getElementById(id);

    Array.from(fieldQCM.getElementsByTagName('INPUT')).forEach((input) => {
        const label = document.querySelector("label[for='" + input.id + "']");
        if (input.checked) {
            Array.from(label.getElementsByClassName('hiden_block_quote')).forEach(((child) => {
                child.classList.remove('hiden_block_quote');
            }));
        }
        switch (input.className) {
            case '!': {
                label.style.color = '#FF0000';
            }
                break;
            case '=': {
                label.style.color = '#00BB00';
            }
                break;
            case '~': {

                label.style.color = '#FFAA00';
            }
                break;
            default: {
                // empty
            }
        }
    });
}

function shuffle(array) {
    var currentIndex = array.length, temporaryValue, randomIndex;

  // While there remain elements to shuffle...
    while (0 !== currentIndex) {

    // Pick a remaining element...
        randomIndex = Math.floor(Math.random() * currentIndex);
        currentIndex -= 1;

    // And swap it with the current element.
        temporaryValue = array[currentIndex];
        array[currentIndex] = array[randomIndex];
        array[randomIndex] = temporaryValue;
    }

    return array;
}

document.addEventListener('DOMContentLoaded', function () {
    const listQCM = Array.from(document.getElementsByClassName('qcm_field'));
    listQCM.forEach((field) => {
        let listInput = [];
        Array.from(field.getElementsByTagName('INPUT')).forEach((input) => {
            const label = document.querySelector("label[for='" + input.id + "']");
            listInput.push({'input': input, 'label': label});
            field.removeChild(input);
            field.removeChild(label);
        });
        listInput = shuffle(listInput);
        Array.from(listInput).forEach((couple) => {
            field.insertBefore(couple['label'], field.childNodes[0]); field.insertBefore(couple['input'], couple['label']);
        });
    });


}, false);