(() => {
  // plugins
  Matter.use(MatterAttractors);

  // constants
  const PATHS = {
    DOME: '0 0 0 250 19 250 20 231.9 25.7 196.1 36.9 161.7 53.3 129.5 74.6 100.2 100.2 74.6 129.5 53.3 161.7 36.9 196.1 25.7 231.9 20 268.1 20 303.9 25.7 338.3 36.9 370.5 53.3 399.8 74.6 425.4 100.2 446.7 129.5 463.1 161.7 474.3 196.1 480 231.9 480 250 500 250 500 0 0 0',
    DROP_LEFT: '0 0 20 0 70 100 20 150 0 150 0 0',
    DROP_RIGHT: '50 0 68 0 68 150 50 150 0 100 50 0',
    APRON_LEFT: '0 0 180 120 0 120 0 0',
    APRON_RIGHT: '180 0 180 120 0 120 180 0'
  };

  const COLOR = {
    BACKGROUND: '#000',
    OUTER: '#000',
    INNER: '#FFFFFF',
    BUMPER: '#FFFFFF',
//    BUMPER_LIT:'#FF3F99', //Lobster
    BUMPER_LIT:'#FF8C1F', //PNF
//    BUMPER_LIT:'#FFFF01', //Pigeon Plaza
//    BUMPER_LIT:'#86FC06', //Secret Garden
//    BUMPER_LIT:'#04D9FF', //Secret Garden
      
      PADDLE: '#FFFFFF',
      
//    PINBALL: '#FF3F99', //Lobster
    PINBALL: '#FF8C1F', //PNF
//    PINBALL: '#FFFF01', //Pigeon Plaza
//    PINBALL: '#86FC06', //Secret Garden
//      PINBALL: '#04D9FF', //Secret Garden   
      
//    LINK: '#FF3F99', //Lobster
    LINK: '#FF8C1F', //PNF
//    LINK: '#FFFF01', //Pigeon Plaza
//    LINK: '#86FC06', //Secret Garden
//      LINK: '#04D9FF', //Secret Garden
  };

  const GRAVITY = 1;
  const WIREFRAMES = false;
  const BUMPER_BOUNCE = 1.5;
  const MAX_VELOCITY = 50;

    // matter.js has a built in random range function, but it is deterministic
    function rand(min, max) {
      return Math.random() * (max - min) + min;
    }


  // shared variables
  let engine, world, render, pinball, stopperGroup;

  function load() {
    init();
    createStaticBodies();
    createPinball();
    createEvents();
  }

  function init() {
    // engine (shared)
    engine = Matter.Engine.create();

    // world (shared)
    world = engine.world;
    world.bounds = {
      min: { x: 0, y: 0},
      max: { x: 500, y: 800 }
    };

    world.gravity.y = GRAVITY; // simulate rolling on a slanted table

    // render (shared)
    render = Matter.Render.create({
      element: $('.container')[0],
      engine: engine,
      options: {
        width: world.bounds.max.x,
        height: world.bounds.max.y,
        wireframes: WIREFRAMES,
        background: COLOR.BACKGROUND
      }
    });

    Matter.Render.run(render);

    // runner
    let runner = Matter.Runner.create();
    Matter.Runner.run(runner, engine);

    // used for collision filtering on various bodies
    stopperGroup = Matter.Body.nextGroup(true);
    
    // based on https://stackoverflow.com/questions/28324303/matter-js-mouse-click-on-body
    // https://github.com/liabru/matter-js/blob/081645474c4aa798e5b1ede5d5230b0ecb8835d2/examples/events.js
    var mouse = Matter.Mouse.create(render.canvas);
    var mouseConstraint = Matter.MouseConstraint.create(engine, {
        mouse: mouse,
        constraint: {
            stiffness: 1,
            render: {
                visible: false
            }
        }
    })

    Matter.World.add(world, mouseConstraint);
      

      
      
    Matter.Events.on(engine, 'tick', function(event) {
      if(mouseConstraint.mouse.button == 0){
          console.log("click", mouseConstraint.body);
          if (mouseConstraint.body && mouseConstraint.body.url) {
              console.log("opening link", mouseConstraint.body.url);
              
//                 function openTab(url) {
//                     // Create link in memory
//                     var a = window.document.createElement("a");
//                     //a.target = '_blank';
//                     a.href = url;

//                     // Dispatch fake click
//                     var e = window.document.createEvent("MouseEvents");
//                     e.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
//                     a.dispatchEvent(e);
//                 };

//                 openTab(mouseConstraint.body.url);
              
                  function simulateClick(url) {
                        var a = window.document.createElement("a");
                        a.href = url;
                        
                        const event = new Event('click');

                        // Listen for the event.
                        a.addEventListener('click', function (e) { /* ... */ }, false);

                        // Dispatch the event.
                        a.dispatchEvent(event);
                        
                   }
                   simulateClick(mouseConstraint.body.url)
              
                //window.open(mouseConstraint.body.url, '_blank');
          }
      }
    });
    
    // an example of using mouse events on a mouse
    Matter.Events.on(mouseConstraint, 'mousedown', function(event) {
        var mousePosition = event.mouse.position;
        console.log('mousedown at ' + mousePosition.x + ' ' + mousePosition.y);
    });    
  }



  
//1 Placenotfound *activate the walls with it
var BUMPER_DATA = [
    {x: 100, y: 200, url: "./guestbook/"}, //1 - +( I want to leave a trace)  +(guestbook/)
    {x: 250, y: 200, url: "./backglass.gif"}, //2 - + (Backglass Zine) + (backglass.gif)
    
    {x: 250, y: 380, url: "./S12/"}, //3 + (I don't really want to know) + (S12/)
    {x: 100, y: 380, url: "./S4/"}, //4 - + (is this real?) + (S4/)
    {x: 400, y: 380, url: "./S7/"}, //5 - Camillo + there are more than two ways) + (S7/)
    
    {x: 175, y: 470, url: "./S13/"}, //6 (I'm gonna keep this for later) + (S13/)
    {x: 325, y: 470, url: "./lost_in_files.jpg"}, //6 - Clara image + (I want to get lost in files) + (lost_in_files.jpg)
    {x: 400, y: 200, url: "./situationists.png"}, //2 + (it seems to be a situation) + situ
];
    
//2 Lobster Lounge *activate the walls with it
//var BUMPER_DATA = [
//    {x: 250, y: 200, url: ""}, //1 - Camilo
//    {x: 400, y: 200, url: ""}, //2 - Guest book 
        
//    {x: 175, y: 290, url: ""}, //4 - Strolling cat (+code access: CAT)
//    {x: 325, y: 290, url: ""}, //5 - Louisa game
    
//    {x: 175, y: 470, url: ""}, //6 - Lousa downloadable code access: OFFLINE)
//    {x: 325, y: 470, url: ""}, //3 - Jacopo (?)
    
//    {x: 100, y: 560, url: ""}, //7 - Euna (image)
//    {x: 250, y: 560, url: ""}, //8 - Euna (image)
//];

//3 The Secret Garden //6 walls *activate the walls with it
// var BUMPER_DATA = [
    
     //{x: 100, y: 200, url: ""}, //1 - Guest book
     //{x: 400, y: 200, url: "http://martinfoucaut.com"}, //2 - Jacopo (?)
    
     //{x: 175, y: 290, url: ""}, //4 - Strolling cat (+code access: CAT)
     //{x: 325, y: 290, url: ""}, //5 - Camilo
    
     //{x: 250, y: 380, url: ""}, //6 - Camilo
    
     //{x: 175, y: 470, url: ""}, //7 - Euna (video)
     //{x: 325, y: 470, url: ""}, //8 - Euna (image)
    
     //{x: 250, y: 560, url: ""}, //9 - Floor (+code access: pprgm)

// ];
    
//4 Sonic the Sellout //no wall *activate the walls with it
//var BUMPER_DATA = [
    
    //{x: 100, y: 200, url: ""}, //1 -  Naami (+code access: SAVIOR)
    //{x: 250, y: 200, url: "http://federicoponi.it"}, //2 - Guest book
    //{x: 400, y: 200, url: "http://martinfoucaut.com"}, //3 - Jacopo (?)
    
    //{x: 175, y: 290, url: ""}, //4 - Strolling cat (+code access: CAT)
    //{x: 325, y: 290, url: ""}, //5 - Camilo
    
    //{x: 100, y: 380, url: ""}, //6 - Camilo 
    //{x: 250, y: 380, url: ""}, //7 - Euna (video)Euna (image)Jacopo (?) 
    //{x: 400, y: 380, url: ""}, //8 - Camilo
    
    //{x: 175, y: 470, url: ""}, //9 - Kendal downloadable$ code access: APPOINTMENT
    //{x: 325, y: 470, url: ""}, //10 - Kendal (image)   
    //{x: 400, y: 560, url: ""}, //11 - Kendal (image)
    
    //{x: 100, y: 560, url: ""}, //12 - praxis zine (+code access: PRAXIS)
    //{x: 250, y: 560, url: ""}, //13 - Euna (video)Euna (image)Jacopo (?) 
//];
    
//5  Pigeon Plaza //one wall *activate the walls with it
//var BUMPER_DATA = [
    //{x: 100, y: 200, url: ""}, //1 -  Kendal downlodable$ code access: APPOINTMENT
    //{x: 250, y: 200, url: "http://federicoponi.it"}, //2 - Pigeons Zine
    //{x: 400, y: 200, url: "http://martinfoucaut.com"}, //3 - Guest book
    
    //{x: 175, y: 290, url: ""}, //4 - Strolling cat (+code access: CAT)
    //{x: 325, y: 290, url: ""}, //5 - Camilo
    
    //{x: 100, y: 380, url: ""}, //6 - Camilo 
    //{x: 400, y: 380, url: ""}, //7 - Kendal (research)
    
    //{x: 175, y: 470, url: ""}, //9 - Naami (code access: SAVIOR2)
    //{x: 325, y: 470, url: ""}, //10 - Euna (video)    
    //{x: 400, y: 560, url: ""}, //13 - Euna (image)
    
    //{x: 100, y: 560, url: ""}, //11 - Camilo
    //{x: 250, y: 560, url: ""}, //12 - Kendal (research)
    //{x: 400, y: 560, url: ""}, //7 - Jacopo (?) 
//];


  function createStaticBodies() {
    Matter.World.add(world, [
      // table boundaries (top, bottom, left, right)
      boundary(50, -30, 500, 100),
      boundary(250, 830, 500, 100),
      boundary(-40, 400, 100, 800),
      boundary(540, 400, 100, 800),

      // dome
      path(251, 10, PATHS.DOME),
        
     //The secret garden
     // wall(250, 200, 30, 110, COLOR.INNER),  
     // wall(100, 380, 30, 110, COLOR.INNER),
     // wall(100, 380, 30, 110, COLOR.INNER),
     // wall(400, 380, 30, 110, COLOR.INNER),
     // wall(130, 560, 30, 110, COLOR.INNER, -0.96),  
     // wall(370, 560, 30, 110, COLOR.INNER, 0.96),   

      //Sonic the Sellout

      // Pigeons Plaza
      //wall(250, 380, 30, 110, COLOR.INNER, 0.96),  
        
      // PNF
      wall(250, 560, 30, 110, COLOR.INNER),
      wall(175, 290, 30, 110, COLOR.INNER),
      wall(325, 290, 30, 110, COLOR.INNER),
      wall(130, 560, 30, 110, COLOR.INNER, -0.96),  
      wall(370, 560, 30, 110, COLOR.INNER, 0.96),
        
      // Lobster Lounge    
      // wall(455, 520, 7, 560, COLOR.OUTER),
      // wall(250, 380, 30, 110, COLOR.INNER),
      // wall(100, 380, 30, 110, COLOR.INNER),  
      // wall(400, 380, 30, 110, COLOR.INNER),
      // wall(370, 560, 30, 110, COLOR.INNER, 0.96),
          
      // reset zones (center, right)
      reset(221, 420),
      reset(470, 40)
    ]);
    
    BUMPER_DATA.forEach(d => {
      Matter.World.add(world, bumper(d.x, d.y, d.url));
    });

    //
    // eventually
    // Matter.World.add(world, bumper(d)); and change bumper to use b.whatever as needed (incl color for instance)
  }

 

  function createPinball() {
    // x/y are set to when pinball is launched
    pinball = Matter.Bodies.circle(0, 0, 12, {
      label: 'pinball',
      collisionFilter: {
        group: stopperGroup
      },
      render: {
        fillStyle: COLOR.PINBALL
      }
    });
    Matter.World.add(world, pinball);
    launchPinball();
  }

  function createEvents() {
    // events for when the pinball hits stuff
    Matter.Events.on(engine, 'collisionStart', function(event) {
      let pairs = event.pairs;
      pairs.forEach(function(pair) {
        if (pair.bodyB.label === 'pinball') {
          switch (pair.bodyA.label) {
            case 'reset':
              launchPinball();
              break;
            case 'bumper':
              pingBumper(pair.bodyA);
              break;
          }
        }
      });
    });

    // regulate pinball
    Matter.Events.on(engine, 'beforeUpdate', function(event) {
      // bumpers can quickly multiply velocity, so keep that in check
      Matter.Body.setVelocity(pinball, {
        x: Math.max(Math.min(pinball.velocity.x, MAX_VELOCITY), -MAX_VELOCITY),
        y: Math.max(Math.min(pinball.velocity.y, MAX_VELOCITY), -MAX_VELOCITY),
      });

      // cheap way to keep ball from going back down the shooter lane
      if (pinball.position.x > 450 && pinball.velocity.y > 0) {
        Matter.Body.setVelocity(pinball, { x: 0, y: -10 });
      }
    });

  }

  function launchPinball() {
    Matter.Body.setPosition(pinball, { x: 465, y: 765 });
    Matter.Body.setVelocity(pinball, { x: 0, y: -25 + rand(-2, 2) });
    Matter.Body.setAngularVelocity(pinball, 0);
  }

  function pingBumper(bumper) {
    //updateScore(currentScore + 10);

    // flash color
    bumper.render.fillStyle = COLOR.BUMPER_LIT;
    setTimeout(function() {
      bumper.render.fillStyle = COLOR.BUMPER;
    }, 100);
  }



  // outer edges of pinball table
  function boundary(x, y, width, height) {
    return Matter.Bodies.rectangle(x, y, width, height, {
      isStatic: true,
      render: {
        fillStyle: COLOR.OUTER
      }
    });
  }

  // wall segments
  function wall(x, y, width, height, color, angle = 0) {
    return Matter.Bodies.rectangle(x, y, width, height, {
      angle: angle,
      isStatic: true,
      chamfer: { radius: 15 },
      render: {
        fillStyle: color
      }
    });
  }

  // bodies created from SVG paths
  function path(x, y, path) {
    let vertices = Matter.Vertices.fromPath(path);
    return Matter.Bodies.fromVertices(x, y, vertices, {
      isStatic: true,
      render: {
        fillStyle: COLOR.OUTER,

        // add stroke and line width to fill in slight gaps between fragments
        strokeStyle: COLOR.OUTER,
        lineWidth: 1
      }
    });
  }

  // round bodies that repel pinball
  function bumper(x, y, url) {
    let bumper = Matter.Bodies.circle(x, y, 25, {
      label: 'bumper',
      url: url,
      isStatic: true,
      render: {
        fillStyle: COLOR.BUMPER
      }
    });

    // for some reason, restitution is reset unless it's set after body creation
    bumper.restitution = BUMPER_BOUNCE;

    return bumper;
  }

  // invisible bodies to constrict paddles


  // contact with these bodies causes pinball to be relaunched
  function reset(x, width) {
    return Matter.Bodies.rectangle(x, 781, width, 4, {
      label: 'reset',
      isStatic: true,
      render: {
        fillStyle: '#00070C'
      }
    });
  }

  window.addEventListener('load', load, false);
})();