/**
 *
 */
var BubbleSort = function() {
    //===== Inits.
    this.actions = [];

    this.swaps = 0;
    this.comparisons = 0;

    //===== Action management.
};

BubbleSort.prototype = Object.create(Sorter.prototype);

/**
 *
 */
BubbleSort.prototype.init = function() {
    var len = this.shuffled.length;

    this
        .instruct(Itemgroup.items, 0, 0, len)
        .instruct(Itemgroup.items, 1, 0, len)
        .instruct(Itemgroup.items, 2, 0, len)

    for (var i = 0; i < len; i++) {
        this.instruct(Itemgroup.text, 1, 0, i, this.shuffled[i]);
    }

    this
        .instruct(Itemgroup.foreground, 1, 0, 0, len, Visualizer.fg0)
        .instruct(Itemgroup.background, 1, 0, 0, len, Visualizer.bg0)

        .instruct(Itemgroup.opacity, 0, 0, 0, len, 0)
        .instruct(Itemgroup.opacity, 2, 0, 0, len, 0)
};

/**
 *
 */
BubbleSort.prototype.sort = function(arr) {
    var i;
    var swapped = false;
    var len = arr.length;

    // NOTE this starts at the beginning of the array each time
    for (i = 1; i < len; i++) {
        if (arr[i - 1] > arr[i]) {
            this.swap(arr, i, i - 1);
            swapped = true;
            // console.log(dump(arr));
        }
    }

    if (swapped === true) {
        this.sort(arr);
    }

    return arr;
};