var programari_include_container = null;

var addEvent = function (elem, type, eventHandle) {
    if (elem == null || typeof (elem) == 'undefined') return;
    if (elem.addEventListener) {
        elem.addEventListener(type, eventHandle, false);
    } else if (elem.attachEvent) {
        elem.attachEvent("on" + type, eventHandle);
    } else {
        elem["on" + type] = eventHandle;
    }
};

function OnResize() {

    var container = GetContainer();
    if (container == null)
        return;
    var iframe = document.getElementById(programari_include_container + '_iframe');

    //var w = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
    //var h = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
    //h -= 40;
    //container.style.height = h + 'px';

    //if(container.offsetHeight < 380)
    //    container.style.height = '380px';

    var i_width = container.offsetWidth - 2;
    var i_height = container.offsetHeight - 2;
    iframe.width = i_width + 'px';
    iframe.height = i_height + 'px';

    //console.log('resize to: ' + i_width + ',' + i_height);

}

function GetContainer() {
    var container = document.getElementById(programari_include_container);
    if (container == null) {
        // search by class name
        var divs = document.getElementsByClassName(programari_include_container);
        if (divs.length == 1) {
            container = divs[0];
        } else {
            return null;
        }
    }
    return container;
}

function setupReceiveMessageFromChild(){
    var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
    var eventer = window[eventMethod];
    var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message";
    // Listen to message from child window
    eventer(messageEvent,function(e) {
        var key = e.message ? "message" : "data";
        var data = e[key];
        //console.log(data);
        if(data === 'expand'){
            var container = GetContainer();
            if(container == null)
                return;
            if(container.className.indexOf('full-screen-iframe') < 0)
                container.className = container.className + ' full-screen-iframe';
            OnResize();
        }
        if(data === 'collapse'){
            var container = GetContainer();
            if(container == null)
                return;
            container.className = container.className.replace(/\bfull-screen-iframe\b/,'');
            OnResize();
        }
    },false);

    var style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = '.full-screen-iframe {z-index: 9999; width: 100% !important; height: 100% !important; position: fixed; top: 0; left: 0; background-color: #fff; }';
    document.getElementsByTagName('head')[0].appendChild(style);

    //document.getElementById('someElementId').className = 'cssClass';
}

function InitializareProgramariInternal2(config, id_container, clear, local) {
    programari_include_container = id_container;

    var container = GetContainer();
    if (container == null)
        return;

    if (clear) {
        while (container.firstChild) {
            container.removeChild(container.firstChild);
        }
    }

    var height = getParameterByName('h');
    if (height != null) {
        container.style.height = height + 'px';
    }

    //var base_url = 'http://gdio.ro';
    var base_url = 'https://gdio.ro/programari';
    if (local)
        base_url = 'http://localhost:2994/programari';

    //container.style.overflowY = 'scroll';
    //container.style.WebkitOverflowScrolling = 'touch';

    var iframe = document.createElement('iframe');
    iframe.id = id_container + '_iframe';

    var clinica = null;
    var doctor = null;

    if (config.clinica != null)
        clinica = config.clinica;
    else if (config.doctor != null)
        doctor = config.doctor;
    else
        clinica = config; // fallback for www.bote-san.ro

    iframe.frameBorder = 0;
    container.appendChild(iframe);

    addEvent(window, "resize", OnResize);
    OnResize();

    scrollIt(container);

    setupReceiveMessageFromChild();
/*
    window.addEventListener("message",
          function (e) {
              if (e.origin !== base_url) { return; }
              window.scrollTo(0, 0);
              console.log('window.addEventListener - message' + e.data);
          },
          false);
*/
          
    var version = 'v035';
    var test_version = getParameterByName('version');
    if(test_version != null)
        version = test_version;

    var src = base_url + '/' + version + '/Start.aspx?';
    if (clinica != null)
        src += 'c=' + clinica;
    if (doctor != null)
        src += 'o=' + doctor;

    var current_url = window.location.href;
    if (current_url.indexOf('?') > 0)
        src += '&' + current_url.substr(current_url.indexOf('?') + 1);
    src += '&domain=' + window.location.hostname;
    CONSOLE(src);
    iframe.src = src;
}





/// https://pawelgrzybek.com/page-scroll-in-vanilla-javascript/ 
function scrollIt(destination, duration = 200, easing = 'linear', callback) {

  const easings = {
    linear(t) {
      return t;
    },
    easeInQuad(t) {
      return t * t;
    },
    easeOutQuad(t) {
      return t * (2 - t);
    },
    easeInOutQuad(t) {
      return t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t;
    },
    easeInCubic(t) {
      return t * t * t;
    },
    easeOutCubic(t) {
      return (--t) * t * t + 1;
    },
    easeInOutCubic(t) {
      return t < 0.5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1;
    },
    easeInQuart(t) {
      return t * t * t * t;
    },
    easeOutQuart(t) {
      return 1 - (--t) * t * t * t;
    },
    easeInOutQuart(t) {
      return t < 0.5 ? 8 * t * t * t * t : 1 - 8 * (--t) * t * t * t;
    },
    easeInQuint(t) {
      return t * t * t * t * t;
    },
    easeOutQuint(t) {
      return 1 + (--t) * t * t * t * t;
    },
    easeInOutQuint(t) {
      return t < 0.5 ? 16 * t * t * t * t * t : 1 + 16 * (--t) * t * t * t * t;
    }
  };

  const start = window.pageYOffset;
  const startTime = 'now' in window.performance ? performance.now() : new Date().getTime();

  const documentHeight = Math.max(document.body.scrollHeight, document.body.offsetHeight, document.documentElement.clientHeight, document.documentElement.scrollHeight, document.documentElement.offsetHeight);
  const windowHeight = window.innerHeight || document.documentElement.clientHeight || document.getElementsByTagName('body')[0].clientHeight;
  const destinationOffset = typeof destination === 'number' ? destination : destination.offsetTop;
  const destinationOffsetToScroll = Math.round(documentHeight - destinationOffset < windowHeight ? documentHeight - windowHeight : destinationOffset);

  if ('requestAnimationFrame' in window === false) {
    window.scroll(0, destinationOffsetToScroll);
    if (callback) {
      callback();
    }
    return;
  }

  function scroll() {
    const now = 'now' in window.performance ? performance.now() : new Date().getTime();
    const time = Math.min(1, ((now - startTime) / duration));
    const timeFunction = easings[easing](time);
    window.scroll(0, Math.ceil((timeFunction * (destinationOffsetToScroll - start)) + start));

    if (window.pageYOffset === destinationOffsetToScroll) {
      if (callback) {
        callback();
      }
      return;
    }

    requestAnimationFrame(scroll);
  }

  scroll();
}

function getParameterByName(name, url) {
    if (!url) url = window.location.href;
    name = name.replace(/[\[\]]/g, "\\$&");
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
        results = regex.exec(url);
    if (!results) return null;
    if (!results[2]) return '';
    return decodeURIComponent(results[2].replace(/\+/g, " "));
}

function CONSOLE(text) {
    var field = 'debug';
    var url = window.location.href;
    var debug = false;
    if (url.indexOf('?' + field + '=') != -1)
        debug = true;
    else if (url.indexOf('&' + field + '=') != -1)
        debug = true;
    
    if (debug)
        console.log(text);
}

function InitializareProgramari2Local(account, id_container, clear) {
    InitializareProgramariInternal2(account, id_container, clear, true);
}

function InitializareProgramari2(account, id_container, clear) {
    InitializareProgramariInternal2(account, id_container, clear, false);
}

function InitializareProgramari(account, id_container, clear) {
    
}

document.addEventListener("DOMContentLoaded", function(){
        InitializareProgramari2(
        { "clinica": "finas.medical" }, 
        'programari', false);
});

window.addEventListener("load", function(){
    // ....
});