/// <reference path="../../three.d.ts" />
/// <reference path="../../../tween.js/tween.js.d.ts" />
/// <reference path="../three-tests-setup.ts" />

// https://github.com/mrdoob/three.js/blob/master/examples/css3d_periodictable.html

() => {
    // ------- variable definitions that does not exist in the original code. These are for typescript.
    // -------
    var table = [
        "H", "Hydrogen", "1.00794", 1, 1,
        "He", "Helium", "4.002602", 18, 1,
        "Li", "Lithium", "6.941", 1, 2,
        "Be", "Beryllium", "9.012182", 2, 2,
        "B", "Boron", "10.811", 13, 2,
        "C", "Carbon", "12.0107", 14, 2,
        "N", "Nitrogen", "14.0067", 15, 2,
        "O", "Oxygen", "15.9994", 16, 2,
        "F", "Fluorine", "18.9984032", 17, 2,
        "Ne", "Neon", "20.1797", 18, 2,
        "Na", "Sodium", "22.98976...", 1, 3,
        "Mg", "Magnesium", "24.305", 2, 3,
        "Al", "Aluminium", "26.9815386", 13, 3,
        "Si", "Silicon", "28.0855", 14, 3,
        "P", "Phosphorus", "30.973762", 15, 3,
        "S", "Sulfur", "32.065", 16, 3,
        "Cl", "Chlorine", "35.453", 17, 3,
        "Ar", "Argon", "39.948", 18, 3,
        "K", "Potassium", "39.948", 1, 4,
        "Ca", "Calcium", "40.078", 2, 4,
        "Sc", "Scandium", "44.955912", 3, 4,
        "Ti", "Titanium", "47.867", 4, 4,
        "V", "Vanadium", "50.9415", 5, 4,
        "Cr", "Chromium", "51.9961", 6, 4,
        "Mn", "Manganese", "54.938045", 7, 4,
        "Fe", "Iron", "55.845", 8, 4,
        "Co", "Cobalt", "58.933195", 9, 4,
        "Ni", "Nickel", "58.6934", 10, 4,
        "Cu", "Copper", "63.546", 11, 4,
        "Zn", "Zinc", "65.38", 12, 4,
        "Ga", "Gallium", "69.723", 13, 4,
        "Ge", "Germanium", "72.63", 14, 4,
        "As", "Arsenic", "74.9216", 15, 4,
        "Se", "Selenium", "78.96", 16, 4,
        "Br", "Bromine", "79.904", 17, 4,
        "Kr", "Krypton", "83.798", 18, 4,
        "Rb", "Rubidium", "85.4678", 1, 5,
        "Sr", "Strontium", "87.62", 2, 5,
        "Y", "Yttrium", "88.90585", 3, 5,
        "Zr", "Zirconium", "91.224", 4, 5,
        "Nb", "Niobium", "92.90628", 5, 5,
        "Mo", "Molybdenum", "95.96", 6, 5,
        "Tc", "Technetium", "(98)", 7, 5,
        "Ru", "Ruthenium", "101.07", 8, 5,
        "Rh", "Rhodium", "102.9055", 9, 5,
        "Pd", "Palladium", "106.42", 10, 5,
        "Ag", "Silver", "107.8682", 11, 5,
        "Cd", "Cadmium", "112.411", 12, 5,
        "In", "Indium", "114.818", 13, 5,
        "Sn", "Tin", "118.71", 14, 5,
        "Sb", "Antimony", "121.76", 15, 5,
        "Te", "Tellurium", "127.6", 16, 5,
        "I", "Iodine", "126.90447", 17, 5,
        "Xe", "Xenon", "131.293", 18, 5,
        "Cs", "Caesium", "132.9054", 1, 6,
        "Ba", "Barium", "132.9054", 2, 6,
        "La", "Lanthanum", "138.90547", 4, 9,
        "Ce", "Cerium", "140.116", 5, 9,
        "Pr", "Praseodymium", "140.90765", 6, 9,
        "Nd", "Neodymium", "144.242", 7, 9,
        "Pm", "Promethium", "(145)", 8, 9,
        "Sm", "Samarium", "150.36", 9, 9,
        "Eu", "Europium", "151.964", 10, 9,
        "Gd", "Gadolinium", "157.25", 11, 9,
        "Tb", "Terbium", "158.92535", 12, 9,
        "Dy", "Dysprosium", "162.5", 13, 9,
        "Ho", "Holmium", "164.93032", 14, 9,
        "Er", "Erbium", "167.259", 15, 9,
        "Tm", "Thulium", "168.93421", 16, 9,
        "Yb", "Ytterbium", "173.054", 17, 9,
        "Lu", "Lutetium", "174.9668", 18, 9,
        "Hf", "Hafnium", "178.49", 4, 6,
        "Ta", "Tantalum", "180.94788", 5, 6,
        "W", "Tungsten", "183.84", 6, 6,
        "Re", "Rhenium", "186.207", 7, 6,
        "Os", "Osmium", "190.23", 8, 6,
        "Ir", "Iridium", "192.217", 9, 6,
        "Pt", "Platinum", "195.084", 10, 6,
        "Au", "Gold", "196.966569", 11, 6,
        "Hg", "Mercury", "200.59", 12, 6,
        "Tl", "Thallium", "204.3833", 13, 6,
        "Pb", "Lead", "207.2", 14, 6,
        "Bi", "Bismuth", "208.9804", 15, 6,
        "Po", "Polonium", "(209)", 16, 6,
        "At", "Astatine", "(210)", 17, 6,
        "Rn", "Radon", "(222)", 18, 6,
        "Fr", "Francium", "(223)", 1, 7,
        "Ra", "Radium", "(226)", 2, 7,
        "Ac", "Actinium", "(227)", 4, 10,
        "Th", "Thorium", "232.03806", 5, 10,
        "Pa", "Protactinium", "231.0588", 6, 10,
        "U", "Uranium", "238.02891", 7, 10,
        "Np", "Neptunium", "(237)", 8, 10,
        "Pu", "Plutonium", "(244)", 9, 10,
        "Am", "Americium", "(243)", 10, 10,
        "Cm", "Curium", "(247)", 11, 10,
        "Bk", "Berkelium", "(247)", 12, 10,
        "Cf", "Californium", "(251)", 13, 10,
        "Es", "Einstenium", "(252)", 14, 10,
        "Fm", "Fermium", "(257)", 15, 10,
        "Md", "Mendelevium", "(258)", 16, 10,
        "No", "Nobelium", "(259)", 17, 10,
        "Lr", "Lawrencium", "(262)", 18, 10,
        "Rf", "Rutherfordium", "(267)", 4, 7,
        "Db", "Dubnium", "(268)", 5, 7,
        "Sg", "Seaborgium", "(271)", 6, 7,
        "Bh", "Bohrium", "(272)", 7, 7,
        "Hs", "Hassium", "(270)", 8, 7,
        "Mt", "Meitnerium", "(276)", 9, 7,
        "Ds", "Darmstadium", "(281)", 10, 7,
        "Rg", "Roentgenium", "(280)", 11, 7,
        "Cn", "Copernicium", "(285)", 12, 7,
        "Uut", "Unutrium", "(284)", 13, 7,
        "Fl", "Flerovium", "(289)", 14, 7,
        "Uup", "Ununpentium", "(288)", 15, 7,
        "Lv", "Livermorium", "(293)", 16, 7,
        "Uus", "Ununseptium", "(294)", 17, 7,
        "Uuo", "Ununoctium", "(294)", 18, 7
    ];

    var camera, scene, renderer;
    var controls;

    var objects = [];
    var targets = { table: [], sphere: [], helix: [], grid: [] };

    init();
    animate();

    function init() {

        camera = new THREE.PerspectiveCamera(40, window.innerWidth / window.innerHeight, 1, 10000);
        camera.position.z = 3000;

        scene = new THREE.Scene();

        // table

        for (var i = 0; i < table.length; i += 5) {

            var element = document.createElement('div');
            element.className = 'element';
            element.style.backgroundColor = 'rgba(0,127,127,' + (Math.random() * 0.5 + 0.25) + ')';

            var number = document.createElement('div');
            number.className = 'number';
            number.textContent = ((i / 5) + 1).toString();
            element.appendChild(number);

            var symbol = document.createElement('div');
            symbol.className = 'symbol';
            symbol.textContent = table[i].toString();
            element.appendChild(symbol);

            var details = document.createElement('div');
            details.className = 'details';
            details.innerHTML = table[i + 1] + '<br>' + table[i + 2];
            element.appendChild(details);

            var cssobject = new THREE.CSS3DObject(element);
            cssobject.position.x = Math.random() * 4000 - 2000;
            cssobject.position.y = Math.random() * 4000 - 2000;
            cssobject.position.z = Math.random() * 4000 - 2000;
            scene.add(cssobject);

            objects.push(cssobject);

            //

            var object = new THREE.Object3D();
            object.position.x = (<number>table[i + 3] * 140) - 1330;
            object.position.y = - (<number>table[i + 4] * 180) + 990;

            targets.table.push(object);

        }

        // sphere

        var vector = new THREE.Vector3();

        for (var i = 0, l = objects.length; i < l; i++) {

            var phi = Math.acos(-1 + (2 * i) / l);
            var theta = Math.sqrt(l * Math.PI) * phi;

            var object = new THREE.Object3D();

            object.position.x = 800 * Math.cos(theta) * Math.sin(phi);
            object.position.y = 800 * Math.sin(theta) * Math.sin(phi);
            object.position.z = 800 * Math.cos(phi);

            vector.copy(object.position).multiplyScalar(2);

            object.lookAt(vector);

            targets.sphere.push(object);

        }

        // helix

        var vector = new THREE.Vector3();

        for (var i = 0, l = objects.length; i < l; i++) {

            var phi = i * 0.175 + Math.PI;

            var object = new THREE.Object3D();

            object.position.x = 900 * Math.sin(phi);
            object.position.y = - (i * 8) + 450;
            object.position.z = 900 * Math.cos(phi);

            vector.x = object.position.x * 2;
            vector.y = object.position.y;
            vector.z = object.position.z * 2;

            object.lookAt(vector);

            targets.helix.push(object);

        }

        // grid

        for (var i = 0; i < objects.length; i++) {

            var object = new THREE.Object3D();

            object.position.x = ((i % 5) * 400) - 800;
            object.position.y = (- (Math.floor(i / 5) % 5) * 400) + 800;
            object.position.z = (Math.floor(i / 25)) * 1000 - 2000;

            targets.grid.push(object);

        }

        //

        renderer = new THREE.CSS3DRenderer();
        renderer.setSize(window.innerWidth, window.innerHeight);
        renderer.domElement.style.position = 'absolute';
        document.getElementById('container').appendChild(renderer.domElement);

        //

        controls = new THREE.TrackballControls(camera, renderer.domElement);
        controls.rotateSpeed = 0.5;
        controls.minDistance = 500;
        controls.maxDistance = 6000;
        controls.addEventListener('change', render);

        var button = document.getElementById('table');
        button.addEventListener('click', function (event) {

            transform(targets.table, 2000);

        }, false);

        var button = document.getElementById('sphere');
        button.addEventListener('click', function (event) {

            transform(targets.sphere, 2000);

        }, false);

        var button = document.getElementById('helix');
        button.addEventListener('click', function (event) {

            transform(targets.helix, 2000);

        }, false);

        var button = document.getElementById('grid');
        button.addEventListener('click', function (event) {

            transform(targets.grid, 2000);

        }, false);

        transform(targets.table, 2000);

        //

        window.addEventListener('resize', onWindowResize, false);

    }

    function transform(targets, duration) {

        TWEEN.removeAll();

        for (var i = 0; i < objects.length; i++) {

            var object = objects[i];
            var target = targets[i];

            new TWEEN.Tween(object.position)
                .to({ x: target.position.x, y: target.position.y, z: target.position.z }, Math.random() * duration + duration)
                .easing(TWEEN.Easing.Exponential.InOut)
                .start();

            new TWEEN.Tween(object.rotation)
                .to({ x: target.rotation.x, y: target.rotation.y, z: target.rotation.z }, Math.random() * duration + duration)
                .easing(TWEEN.Easing.Exponential.InOut)
                .start();

        }

        new TWEEN.Tween(this)
            .to({}, duration * 2)
            .onUpdate(render)
            .start();

    }

    function onWindowResize() {

        camera.aspect = window.innerWidth / window.innerHeight;
        camera.updateProjectionMatrix();

        renderer.setSize(window.innerWidth, window.innerHeight);

        render();

    }

    function animate() {

        requestAnimationFrame(animate);

        TWEEN.update();

        controls.update();

    }

    function render() {

        renderer.render(scene, camera);

    }
}