/* eslint-disable */

!(function() {

  var PAYWALLZ_SITE_ID = '52104796';
  var PAYWALLZ_SITE_KEY = 'pw_bOZOFHUYvuAA4KWMsEUS';
  var PAYWALLZ_PAGES = [{"id":10001634,"path":"/writing","includes_page":true,"includes_subpages":true}];
  var PAYWALLZ_HUD_POSITION = {"bottom":0,"left":"16px"};

  // TODO add alternate_domain
  var PAYWALLZ_TARGET_ORIGIN = 'https://api.mmbr.io';
  var PAYWALLZ_COMPARE_DOMAIN = 'www.sabinehossenfelder.com';
  var PAYWALLZ_MESSAGE_DOMAIN = 'https://' + 'www.sabinehossenfelder.com';
  var PAYWALLZ_SERVER_PAINTER = 'https://api.mmbr.io/painter/v1';
  var PAYWALLZ_SERVER_CLERK = 'https://api.mmbr.io/clerk/v1';
  var PAYWALLZ_SERVER_WAITER = 'https://api.mmbr.io/waiter/v1';
  var PAYWALLZ_SERVER_BOUNCER = 'https://api.mmbr.io/bouncer';
  var PAYWALLZ_SITE_NAME = 'Homepage'

  var PAYWALLZ_USER = {"has_access":false};

  var PAYWALLZ_CURRENT_PATH = decodeURIComponent(window.location.pathname.replace(/\/$/, '').trim());
  var PAYWALLZ_SHARE_KEY = decodeURIComponent(window.location.search.replace(new RegExp("^(?:.*[&\\?]" + encodeURIComponent('share_key').replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1"));

  var ua = window.navigator.userAgent;
  var iOSSafari = !!ua.match(/iPad/i) || !!ua.match(/iPhone/i) && !!ua.match(/WebKit/i) && !ua.match(/CriOS/i);

  var payload = {
    isPageProtected: isPageProtected(),
    isUserAllowed: isUserAllowed(),
    path: window.location.pathname,
    href: window.location.href,
    user: PAYWALLZ_USER,
    shareKey: PAYWALLZ_SHARE_KEY && PAYWALLZ_SHARE_KEY.length > 0 ? PAYWALLZ_SHARE_KEY : false
  };

  window.addEventListener('load', function(event) {

    if (payload.isPageProtected && !payload.shareKey && !payload.isUserAllowed) {
      var curtain = addCurtain();
    }

    var paywall = addPaywall();

    var sync = paywallSync(payload, paywall);

    paywall.addEventListener('load', sync(true), false);

    window.addEventListener('hashchange', sync(false), false);

    window.addEventListener('popstate', sync(false), false);

    window.addEventListener('message', function(event) {
      if (event.origin === (PAYWALLZ_TARGET_ORIGIN)) {
        switch (event.data.action) {
          case 'LOGIN':
            var returnTo = encodeURIComponent(window.location.href); 
            var url = PAYWALLZ_SERVER_BOUNCER + '/login?returnTo=' + returnTo;
            if (event.data.email) { 
              url = url + '&email=' + encodeURIComponent(event.data.email);
            }
            if (PAYWALLZ_SITE_ID) {
              url = url + '&context=site_' + PAYWALLZ_SITE_ID;
            }
            window.location.href = url;
            break;
          case 'REGISTER':
            var returnTo = encodeURIComponent(window.location.href); 
            var url = PAYWALLZ_SERVER_BOUNCER + '/register?returnTo=' + returnTo;
            if (event.data.email) { 
              url = url + '&email=' + encodeURIComponent(event.data.email);
            }
            if (PAYWALLZ_SITE_ID) {
              url = url + '&context=site_' + PAYWALLZ_SITE_ID;
            }
            window.location.href = url;
            break;
          case 'LOGOUT':
            var returnTo = encodeURIComponent(window.location.href); 
            var url = PAYWALLZ_SERVER_BOUNCER + '/logout?returnTo=' + returnTo;
            window.location.href = url;
            break;
          case 'PROTECT':
            protect()
            break;
          case 'HAS_ACCESS':
            window.location.reload();
            break;
          case 'OVERLAY_DOWN':
            if (curtain) {
              curtain.parentNode.removeChild(curtain);
            }
            break;
          case 'GO_BACK':
            if (PAYWALLZ_CURRENT_PATH === window.location.origin) {
              window.history.go(-1);
            } else {
              window.location.assign(window.location.origin);
            }
            break;
          case 'CURTAIN_UP':
            paywall.style.width = '100%';
            paywall.style.height = '100%';
            if (iOSSafari) {
              paywall.style.position = 'absolute';
            }
            break;
          case 'CURTAIN_DOWN':
            paywall.style.width = '189px';
            paywall.style.height = '80px';
            paywall.style.position = 'fixed';
            break;
        };
      }
    }, false);
  });

  function protect() {
    var content = (document.querySelectorAll('.paywallz_content') || []);

    if (content.length === 0) {
      for (var i = 0; i < document.body.children.length; i++) {
        var child = document.body.children[i];
        if (child.id !== 'paywallz-overlay' && child.id !== 'paywallz-iframe') {
          document.body.removeChild(child);
        }
      }
    } else {
      var protectedElements = document.querySelectorAll('.paywallz_content');
      for (var i = 0, l = protectedElements.length; i < l; i++) {
        protectedElements[i].parentNode.removeChild(protectedElements[i]);
      }
    }
  }

  function paywallSync(payload, paywall) {

    return function(init) {

      return function() {

        payload.action = init ? 'INIT' : 'SYNC';

        payload.shareKey = init ? payload.shareKey : undefined;
        paywall.contentWindow.postMessage(payload, PAYWALLZ_TARGET_ORIGIN);
      }
    }
  }

  function isPageProtected() {
    // TODO add alternate_domain
    var host = PAYWALLZ_COMPARE_DOMAIN.substring(2, PAYWALLZ_COMPARE_DOMAIN.length);

    if (PAYWALLZ_COMPARE_DOMAIN.substring(0, 2) === '*.' ? window.location.host.lastIndexOf(host) === window.location.host.length - host.length : PAYWALLZ_COMPARE_DOMAIN === window.location.host) {

      for (var i = 0; i < PAYWALLZ_PAGES.length; i++) {
        var page = PAYWALLZ_PAGES[i];

        let is_protected_subpage = false;
        let is_protected_page = false;

        if (page.path === '/') {
          is_protected_subpage = page.includes_subpages && PAYWALLZ_CURRENT_PATH.indexOf(page.path) === 0 && PAYWALLZ_CURRENT_PATH.length > 1;
          is_protected_page = page.includes_page && (PAYWALLZ_CURRENT_PATH === '' || PAYWALLZ_CURRENT_PATH === '/');
        } else {
          // the page exactly matches the start of the current path and the character immediately after is a slash and the path continues
          // ie. /videos should match /videos/2 but not /videos, /videos-2, or /videos/
          is_protected_subpage = page.includes_subpages && (PAYWALLZ_CURRENT_PATH.lastIndexOf(page.path, 0) === 0 && PAYWALLZ_CURRENT_PATH[page.path.length] === '/' && PAYWALLZ_CURRENT_PATH.length > page.path.length + 1);
          // exact match or last character of current path === / and the path without it is an exact match (ie. /videos should match /videos/)
          is_protected_page = page.includes_page && (PAYWALLZ_CURRENT_PATH === page.path || (PAYWALLZ_CURRENT_PATH.slice(-1) === '/' && PAYWALLZ_CURRENT_PATH.length === page.path.length + 1 && PAYWALLZ_CURRENT_PATH.indexOf(page.path) === 0));
        }

        if (is_protected_subpage || is_protected_page) {
          return true;
        }
      }
      return false;
    }
    return;
  }

  function isUserAllowed() {
    return PAYWALLZ_USER.has_access;
  }

  var paywallObserver;

  function addPaywall() {
    let existing = document.getElementById('paywallz-iframe');
    if (existing) {
      return
    }
    var iframe = document.createElement('iframe');
    iframe.src = PAYWALLZ_SERVER_PAINTER + '/paywall?key=pw_bOZOFHUYvuAA4KWMsEUS&protocol=' + encodeURIComponent(window.location.protocol);
    iframe.name = 'paywallz-paywall';
    iframe.id = 'paywallz-iframe';
    iframe.style.width = '189px';
    iframe.style.height = '80px';
    iframe.style.position = 'fixed';
    iframe.style.border = 'none';
    iframe.style.zIndex = 100000;
    for (var p in PAYWALLZ_HUD_POSITION) {
      iframe.style[p] = PAYWALLZ_HUD_POSITION[p];
    }
    document.body.appendChild(iframe);
    return iframe;
  }

  function addCurtain() {

    var curtain = document.createElement('div');
    var image = document.createElement('img');
    curtain.id = 'paywallz-overlay';
    curtain.setAttribute('style', 'position:fixed;height:100%;width:100%;top:0;left:0;z-index:99999;background-color:rgba(38, 50, 56, 0.95);');
    image.setAttribute('style', 'position:absolute;height:200px;width:200px;top:0;right:0;bottom:0;left:0;margin:auto;border-radius:100px;border:2px solid #FAFAFA;');
    image.setAttribute('src', 'https://pwlz-assets.s3.us-west-2.amazonaws.com/images/sites/1560522116702_u1_978-3-10-397246-7.66536937.jpg');
    curtain.appendChild(image);

    document.body.appendChild(curtain);

    curtain.addEventListener('contextmenu', function(e) {
      e.preventDefault()
    }, false);

    if (MutationObserver) {

      if (paywallObserver) {
        paywallObserver.disconnect();
        paywallObserver = null;
      }

      paywallObserver = new MutationObserver(function(mutations) {
        var curtainRemoved = false;
        for (var i = 0; i < mutations.length; i++) {
          var mutation = mutations[i];;
          if (mutation.removedNodes.length > 0) {
            for (var x = 0; x < mutation.removedNodes.length; x++) {
              if (mutation.removedNodes[x].id === 'paywallz-overlay') {
                curtainRemoved = true;
                break;
              }
            }
          }
          if (curtainRemoved) {
            addPaywall();
            break;
          }
        }
      });

      paywallObserver.observe(document.body, {
        childList: true
      });
    }

    return curtain;
  }

})();