var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var Default = {
    onCollapse: function () { },
    onExpand: function () { },
    onToggle: function () { },
};
var Collapse = /** @class */ (function () {
    function Collapse(targetEl, triggerEl, options) {
        if (targetEl === void 0) { targetEl = null; }
        if (triggerEl === void 0) { triggerEl = null; }
        if (options === void 0) { options = Default; }
        this._targetEl = targetEl;
        this._triggerEl = triggerEl;
        this._options = __assign(__assign({}, Default), options);
        this._visible = false;
        this._init();
    }
    Collapse.prototype._init = function () {
        var _this = this;
        if (this._triggerEl) {
            if (this._triggerEl.hasAttribute('aria-expanded')) {
                this._visible =
                    this._triggerEl.getAttribute('aria-expanded') === 'true';
            }
            else {
                // fix until v2 not to break previous single collapses which became dismiss
                this._visible = !this._targetEl.classList.contains('hidden');
            }
            this._triggerEl.addEventListener('click', function () {
                _this.toggle();
            });
        }
    };
    Collapse.prototype.collapse = function () {
        this._targetEl.classList.add('hidden');
        if (this._triggerEl) {
            this._triggerEl.setAttribute('aria-expanded', 'false');
        }
        this._visible = false;
        // callback function
        this._options.onCollapse(this);
    };
    Collapse.prototype.expand = function () {
        this._targetEl.classList.remove('hidden');
        if (this._triggerEl) {
            this._triggerEl.setAttribute('aria-expanded', 'true');
        }
        this._visible = true;
        // callback function
        this._options.onExpand(this);
    };
    Collapse.prototype.toggle = function () {
        if (this._visible) {
            this.collapse();
        }
        else {
            this.expand();
        }
        // callback function
        this._options.onToggle(this);
    };
    return Collapse;
}());
export function initCollapses() {
    document
        .querySelectorAll('[data-collapse-toggle]')
        .forEach(function ($triggerEl) {
        var targetId = $triggerEl.getAttribute('data-collapse-toggle');
        var $targetEl = document.getElementById(targetId);
        // check if the target element exists
        if ($targetEl) {
            new Collapse($targetEl, $triggerEl);
        }
        else {
            console.error("The target element with id \"".concat(targetId, "\" does not exist. Please check the data-collapse-toggle attribute."));
        }
    });
}
if (typeof window !== 'undefined') {
    window.Collapse = Collapse;
    window.initCollapses = initCollapses;
}
export default Collapse;
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