/* eslint-env browser */

(function (
  window,
  baseUrl,
  apiUrlPrefix,
  version,
  defaultNamespace,
  sendError,
  warn
) {
  // Only initialize in a browser.
  if (!window) return;

  try {
    /////////////////////
    // PREDEFINED VARIABLES FOR BETTER MINIFICATION
    //

    // This seems like a lot of repetition, but it makes our script available for
    // multple destination which prevents us to need multiple scripts. The minified
    // version stays small.
    var undefinedVar = undefined;
    var trueVar = true;
    var falseVar = false;
    var trueText = "true";
    var https = "https:";
    var pageviewText = "pageview";
    var eventText = "event";
    /** if errorhandling **/
    var errorText = "error";
    /** endif **/
    var slash = "/";
    var protocol = https + "//";
    var con = window.console;
    var doNotTrack = "doNotTrack";
    var nav = window.navigator;
    var loc = window.location;
    var locationHostname = loc.host;
    var doc = window.document;
    var userAgent = nav.userAgent;
    var notSending = "Not sending request ";
    var notSendingWhen = notSending + "when ";
    var fetchedHighEntropyValues = falseVar;
    var encodeURIComponentFunc = encodeURIComponent;
    var decodeURIComponentFunc = decodeURIComponent;
    var stringify = JSON.stringify;
    var thousand = 1000;
    var addEventListenerFunc = window.addEventListener;
    var fullApiUrl = protocol + apiUrlPrefix + baseUrl;
    var documentElement = doc.documentElement || {};
    var language = "language";
    var Height = "Height";
    var Width = "Width";
    var scroll = "scroll";
    var uaData = nav.userAgentData;
    var scrollHeight = scroll + Height;
    var offsetHeight = "offset" + Height;
    var clientHeight = "client" + Height;
    var clientWidth = "client" + Width;
    var platformText = "platform";
    var platformVersionText = "platformVersion";
    var docsUrl = "https://docs.simpleanalytics.com";
    var pages = 0;
    var isBotAgent =
      /(bot|spider|crawl)/i.test(userAgent) && !/(cubot)/i.test(userAgent);
    /** if screen **/
    var screen = window.screen;
    /** endif **/

    // Find the script element where options can be set on
    var scriptElement =
      doc.currentScript || doc.querySelector('script[src*="' + baseUrl + '"]');

    /////////////////////
    // HELPER FUNCTIONS
    //

    // A simple log function so the user knows why a request is not being send
    warn = function () {
      // 1. Convert args to a normal array
      var args = [].slice.call(arguments);

      // 2. Prepend log prefix
      args.unshift("Simple Analytics:");

      // 3. Pass along arguments to console.warn
      // Function.prototype.apply.call is needed for Internet Explorer
      return Function.prototype.apply.call(con.warn, con, args);
    };

    var warnInFunction = function (name, error) {
      warn("Error in your " + name + " function:", error);
    };

    var hasProp = function (obj, prop) {
      return Object.prototype.hasOwnProperty.call(obj, prop);
    };

    var isString = function (string) {
      return typeof string == "string";
    };

    var filterRegex = function (item) {
      return item.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
    };

    var attr = function (scriptElement, attribute) {
      return scriptElement && scriptElement.getAttribute("data-" + attribute);
    };

    var convertCommaSeparatedToArray = function (csv) {
      return Array.isArray(csv)
        ? csv
        : isString(csv) && csv.length
          ? csv.split(/, ?/)
          : [];
    };

    var isObject = function (object) {
      return object && object.constructor === Object;
    };

    var assign = function () {
      var to = {};
      var arg = arguments;
      for (var index = 0; index < arg.length; index++) {
        var nextSource = arg[index];
        if (isObject(nextSource)) {
          for (var nextKey in nextSource) {
            if (hasProp(nextSource, nextKey)) {
              to[nextKey] = nextSource[nextKey];
            }
          }
        }
      }
      return to;
    };

    var settings = window.sa_settings;
    var logSettings = settings;
    settings = assign(settings);

    if (logSettings) warn("Settings", settings);

    /** if ignoremetrics **/
    // Customers can skip data points
    var ignoreMetrics = convertCommaSeparatedToArray(
      settings.ignoreMetrics || attr(scriptElement, "ignore-metrics")
    );
    /** endif **/

    var collectMetricByString = function (metricAbbreviation) {
      /** if ignoremetrics **/
      // Can't use Array.find() here because we need to support IE9
      return (
        ignoreMetrics.filter(function (item) {
          return new RegExp("^" + metricAbbreviation).test(item);
        }).length === 0
      );
      /** else **/
      // eslint-disable-next-line no-unreachable
      return true;
      /** endif **/
    };

    var now = Date.now;

    var uuid = function () {
      var cryptoObject = window.crypto || window.msCrypto;
      var emptyUUID = [1e7] + -1e3 + -4e3 + -8e3 + -1e11;
      var uuidRegex = /[018]/g;

      try {
        return emptyUUID.replace(uuidRegex, function (c) {
          return (
            c ^
            (cryptoObject.getRandomValues(new Uint8Array(1))[0] &
              (15 >> (c / 4)))
          ).toString(16);
        });
      } catch (error) {
        return emptyUUID.replace(uuidRegex, function (c) {
          var r = (Math.random() * 16) | 0,
            v = c < 2 ? r : (r & 0x3) | 0x8;
          return v.toString(16);
        });
      }
    };

    var isFunction = function (func) {
      return typeof func == "function";
    };

    // Define namespace for the library
    var namespaceText = "namespace";
    var namespace =
      settings[namespaceText] ||
      attr(scriptElement, namespaceText) ||
      defaultNamespace;

    /** if metadata **/
    var appendMetadata = function (metadata, data) {
      var metadataObject = window[namespace + "_metadata"];
      if (isObject(metadataObject)) metadata = assign(metadata, metadataObject);
      var metadataCollectorFunction = window[metadataCollector];
      if (!isFunction(metadataCollectorFunction)) {
        if (metadataCollector)
          warn(
            metadataCollector + " not found, set window." + metadataCollector
          );
        return metadata;
      }
      try {
        return assign(
          metadata,
          metadataCollectorFunction.call(window, assign(metadata, data))
        );
      } catch (error) {
        warnInFunction("metadata", error);
      }
    };
    /** endif **/

    var isBoolean = function (value) {
      return !!value === value;
    };

    // By default we allow source, medium in the URLs. With strictUtm enabled
    // we only allow it with the utm_ prefix: utm_source, utm_medium, ...
    var strictUtm =
      settings.strictUtm || attr(scriptElement, "strict-utm") == trueText;

    /** if ignoremetrics **/
    var k;
    /** endif **/

    var getQueryParams = function (ignoreSource, overwriteSearch) {
      /** if ignoremetrics **/
      k = !ignoreSource && collectMetricByString("q") ? "" : falseVar;
      /** endif **/
      var q = (overwriteSearch || loc.search)
        .slice(1)
        .split("&")
        .filter(function (keyValue) {
          /** if ignoremetrics **/
          var i = keyValue.indexOf("=");
          if (k !== falseVar && i > 0 && keyValue.slice(i + 1))
            k += (k ? "," : "") + keyValue.slice(0, i);
          /** endif **/

          var ignore = ignoreSource || !collectMetricByString("ut");

          /** if allowparams **/
          var paramsRegexList = allowParams.map(filterRegex).join("|");
          var regex = ignore
            ? "^(" + paramsRegexList + ")="
            : "^((utm_)" +
              (strictUtm ? "" : "?") +
              "(source|medium|content|term|campaign)" +
              (strictUtm ? "" : "|ref") +
              "|" +
              paramsRegexList +
              ")=";
          if (ignore && !allowParams.length) return falseVar;
          /** else **/
          if (ignore) return falseVar;
          // eslint-disable-next-line no-redeclare
          var regex =
            "^((utm_)" +
            (strictUtm ? "" : "?") +
            "(source|medium|content|term|campaign)" +
            (strictUtm ? "" : "|ref") +
            ")=";
          /** endif **/

          // The prefix "utm_" is optional with "strictUtm" disabled
          // "ref" is only collected when "strictUtm" is disabled
          return new RegExp(regex, "i").test(keyValue);
        })
        .join("&");

      /** if ignoremetrics **/
      k = k || undefinedVar;
      /** endif **/
      return q || undefinedVar;
    };

    /** if ignorepages **/
    // Ignore pages specified in data-ignore-pages
    var shouldIgnore = function (path) {
      for (var i in ignorePages) {
        var ignorePageRaw = ignorePages[i];
        if (!ignorePageRaw) continue;

        // Prepend a slash when it's missing
        var ignorePage =
          ignorePageRaw[0] == slash ? ignorePageRaw : slash + ignorePageRaw;

        if (
          ignorePage === path ||
          new RegExp(
            "^" + filterRegex(ignorePage).replace(/\\\*/gi, "(.*)") + "$",
            "i"
          ).test(path)
        )
          return trueVar;
      }
      return falseVar;
    };
    /** endif **/

    /////////////////////
    // Warn when using script twice
    //

    // Only load our script once, customers can still send multiple page views
    // with the sa_pageview function if they turn off auto collect.
    var loadedVariable = namespace + "_loaded";
    if (window[loadedVariable] == trueVar) return warn(notSending + "twice");
    window.sa_event_loaded = trueVar;
    window[loadedVariable] = trueVar;

    /////////////////////
    // SEND DATA VIA OUR PIXEL
    //

    // Send data via image
    var sendData = function (data, callback, onlyThisData, keepalive) {
      data = onlyThisData ? data : assign(payload, page, data);

      if (nav.brave && !onlyThisData) data.brave = trueVar;
      if (nav._duckduckgoloader_ && !onlyThisData) data.duck = trueVar;

      /** if dev **/
      data.dev = trueVar;
      /** endif **/

      var image = new Image();
      /** if events **/
      if (callback) {
        image.onerror = callback;
        image.onload = callback;
      }
      /** endif **/
      var imageUrl =
        fullApiUrl +
        "/simple.gif?" +
        Object.keys(data)
          .filter(function (key) {
            return data[key] != undefinedVar;
          })
          .map(function (key) {
            return (
              encodeURIComponentFunc(key) +
              "=" +
              encodeURIComponentFunc(data[key])
            );
          })
          .join("&") +
        "&time=" +
        Date.now();

      /** if events **/
      // Events must survive navigation without taking over links or forms.
      if (keepalive && window.fetch) {
        try {
          window
            .fetch(imageUrl, {
              keepalive: trueVar,
              mode: "no-cors",
              credentials: "omit",
            })
            .catch(function () {
              image.src = imageUrl;
            });
          return;
        } catch (error) {}
      }
      /** endif **/
      image.src = imageUrl;
    };

    // Customers can overwrite their hostname, here we check for that
    var overwrittenHostname =
      settings.hostname || attr(scriptElement, "hostname");
    var definedHostname = overwrittenHostname || locationHostname;

    var basePayload = {
      version: version,
      hostname: definedHostname,
    };

    /** if errorhandling **/
    /////////////////////
    // ERROR FUNCTIONS
    //

    // Send errors
    // no var because it's scoped outside of the try/catch
    sendError = function (errorOrMessage) {
      errorOrMessage = errorOrMessage.stack
        ? errorOrMessage + " " + errorOrMessage.stack
        : errorOrMessage;
      warn(errorOrMessage);
      sendData(
        assign(basePayload, {
          type: errorText,
          error: errorOrMessage,
          path: loc.pathname,
        }),
        undefinedVar,
        trueVar
      );
    };

    // We listen for the error events and only send errors that are
    // from our script (checked by filename) to our server.
    addEventListenerFunc(
      errorText,
      function (event) {
        if (event.filename && event.filename.indexOf(baseUrl) > -1) {
          sendError(event.message);
        }
      },
      falseVar
    );
    /** endif **/

    /////////////////////
    // INITIALIZE VALUES
    //

    /** if scroll **/
    var scrolled = 0;
    /** endif **/

    /////////////////////
    // GET SETTINGS
    //

    // Script mode, this can be hash mode for example
    var mode = settings.mode || attr(scriptElement, "mode");

    /** if ignorednt **/
    // Should we record Do Not Track visits?
    var collectDnt = isBoolean(settings.collectDnt)
      ? settings.collectDnt
      : attr(scriptElement, "ignore-dnt") == trueText ||
        attr(scriptElement, "skip-dnt") == trueText ||
        attr(scriptElement, "collect-dnt") == trueText;
    /** endif **/

    /** if (or spa hash) **/
    // Some customers want to collect page views manually
    var autoCollect = !(
      attr(scriptElement, "auto-collect") == "false" ||
      settings.autoCollect === falseVar
    );
    /** endif **/

    /** if events **/
    // Event function name
    var eventFunctionName =
      settings.saGlobal ||
      attr(scriptElement, "sa-global") ||
      namespace + "_" + eventText;
    /** endif **/

    /** if ignorepages **/
    // Customers can ignore certain pages
    var ignorePages = convertCommaSeparatedToArray(
      settings.ignorePages || attr(scriptElement, "ignore-pages")
    );
    /** endif **/

    /** if allowparams **/
    // Customers can allow params
    var allowParams = convertCommaSeparatedToArray(
      settings.allowParams || attr(scriptElement, "allow-params")
    );
    /** endif **/

    /** if nonuniquehostnames **/
    // Customers can allow params
    var nonUniqueHostnames = convertCommaSeparatedToArray(
      settings.nonUniqueHostnames || attr(scriptElement, "non-unique-hostnames")
    );
    /** endif **/

    /** if pathoverwriter **/
    // Customers can overwrite certain values
    var pathOverwriter =
      settings.pathOverwriter || attr(scriptElement, "path-overwriter");
    /** endif **/

    /** if metadata **/
    // Customers can add metadata to events and pageviews via a function
    var metadataCollector =
      settings.metadataCollector || attr(scriptElement, "metadata-collector");
    /** endif **/

    // This code could error on (incomplete) implementations, that's why we use try...catch
    var timezone;
    try {
      // c = countries
      timezone = collectMetricByString("c")
        ? Intl.DateTimeFormat().resolvedOptions().timeZone
        : undefinedVar;
    } catch (error) {
      warn(error);
    }

    /////////////////////
    // PAYLOAD FOR BOTH PAGE VIEWS AND EVENTS
    //

    /** if botdetection **/
    var phantom = window.phantom;
    var bot =
      nav.webdriver ||
      window.__nightmare ||
      window.callPhantom ||
      window._phantom ||
      (phantom && !phantom.solana) ||
      window.__polypane ||
      window._bot ||
      isBotAgent ||
      Math.random() == Math.random();
    /** else **/
    // eslint-disable-next-line no-redeclare
    var bot = isBotAgent;
    /** endif **/

    // t = timeonpage, scro = scrolled
    var collectDataOnLeave =
      collectMetricByString("t") || collectMetricByString("scro");

    if (bot) basePayload.bot = trueVar;

    var payload = assign(basePayload, {
      // us = useragent
      ua: collectMetricByString("us") ? userAgent : undefinedVar,

      https: loc.protocol == https,
      timezone: timezone,
      page_id: collectDataOnLeave ? uuid() : undefinedVar,

      // se = sessions
      session_id: collectMetricByString("se") ? uuid() : undefinedVar,
    });

    /** if sri **/
    payload.sri = trueVar;
    /** else **/
    payload.sri = falseVar;
    /** endif **/

    // Use User-Agent Client Hints for better privacy
    // https://web.dev/user-agent-client-hints/
    if (uaData) {
      payload.mobile = uaData.mobile;
      payload.brands = stringify(uaData.brands);
    }

    /////////////////////
    // ADD WARNINGS
    //

    /** if dev **/
    warn("Using latest.dev.js, please change to latest.js on production.");
    /** endif **/

    /** if warnings **/
    // Warn when no document.doctype is defined (this breaks some documentElement dimensions)
    if (!doc.doctype) warn("Add DOCTYPE html for accurate dimensions");
    /** endif **/

    // When a customer overwrites the hostname, we need to know what the original
    // hostname was to hide that domain from referrer traffic
    if (definedHostname !== locationHostname)
      payload.hostname_original = locationHostname;

    // Don't track when Do Not Track is set to true
    /** if ignorednt **/
    if (!collectDnt && doNotTrack in nav && nav[doNotTrack] == "1")
      return warn(
        notSendingWhen + doNotTrack + " is enabled. See " + docsUrl + "/dnt"
      );
    /** else **/
    if (doNotTrack in nav && nav[doNotTrack] == "1")
      return warn(
        notSendingWhen + doNotTrack + " is enabled. See " + docsUrl + "/dnt"
      );
    /** endif **/

    // Warn when sending from localhost and not having a hostname set
    if (
      (locationHostname.indexOf(".") == -1 ||
        /^[0-9.:]+$/.test(locationHostname)) &&
      !overwrittenHostname
    )
      warn(
        "Set hostname on " +
          locationHostname +
          ". See " +
          docsUrl +
          "/overwrite-domain-name"
      );

    /////////////////////
    // SETUP INITIAL VARIABLES
    //

    var page = {};
    var lastSendPath;

    var getReferrer = function (raw) {
      // Customers can overwrite their referrer, here we check for that
      var referrer =
        settings.referrer ||
        attr(scriptElement, "referrer") ||
        doc.referrer ||
        "";

      /** if uniques **/
      if (raw) return referrer;
      /** endif **/
      return (
        referrer
          .replace(locationHostname, definedHostname)
          .replace(/^https?:\/\/((m|l|w{2,3}([0-9]+)?)\.)?([^?#]+)(.*)$/, "$4")
          .replace(/^([^/]+)$/, "$1") || undefinedVar
      );
    };

    // We don't want to end up with sensitive data so we clean the referrer URL
    var referrer = getReferrer();

    /////////////////////
    // TIME ON PAGE AND SCROLLED LOGIC
    //

    /** if (or duration scroll) **/
    /** if duration **/
    // Only visible time counts as time on page
    var isVisible = function () {
      return !doc.hidden;
    };
    var visibleMs = 0;
    var visibleSince = isVisible() ? now() : 0;

    var updateVisibleTime = function () {
      var time = now();
      if (visibleSince) visibleMs += time - visibleSince;
      visibleSince = isVisible() ? time : 0;
    };

    // Optionally send the visible time when it passes thresholds (seconds),
    // e.g. data-pings="5,60", so we keep a lower bound when no leave event fires
    var pings = convertCommaSeparatedToArray(
      settings.pings || attr(scriptElement, "pings")
    ).sort(function (a, b) {
      return a - b;
    });
    var pingTimer;
    var schedulePing = function () {
      clearTimeout(pingTimer);
      updateVisibleTime();
      for (var index = 0; pages && isVisible() && index < pings.length; index++) {
        var ms = pings[index] * thousand - visibleMs;
        // Skip invalid values and values too large for setTimeout
        if (ms > 0 && ms < 2e9)
          return (pingTimer = setTimeout(function () {
            sendOnLeave(undefinedVar, falseVar, trueVar);
            schedulePing();
          }, ms));
      }
    };
    /** endif **/

    var sendOnLeave = function (id, push, ping) {
      if (!collectDataOnLeave || !pages) return;

      var append = assign(basePayload, {
        type: "append",
        original_id: push ? id : payload.page_id,
        /** if duration **/
        // Marks pings, so the backend can block them for plans without pings
        ping: ping,
        /** endif **/
      });

      /** if duration **/
      // t = timeonpage
      if (collectMetricByString("t")) {
        updateVisibleTime();
        append.duration = Math.floor(visibleMs / thousand);
      }
      /** endif **/

      /** if scroll **/
      // scro = scrolled
      if (collectMetricByString("scro")) {
        append.scrolled = Math.max(0, scrolled, position());
      }
      /** endif **/

      // The queue drops appends without values
      if (!append.duration && !append.scrolled) return;

      // Other scripts can break sendBeacon ("Illegal invocation", see #42),
      // then fall back to sendData, which will assign payload to request
      try {
        if (!push && nav.sendBeacon)
          return nav.sendBeacon(fullApiUrl + "/append", stringify(append));
      } catch (error) {}
      sendData(append, undefinedVar, trueVar);
    };

    /** if duration **/
    // Getting hidden is the last event that fires reliably, also when mobile
    // browsers are killed later, so send the values every time it happens.
    // Leaving a page fires it too, so we don't listen to pagehide.
    doc.addEventListener(
      "visibilitychange",
      function () {
        updateVisibleTime();
        if (!isVisible()) sendOnLeave();
        schedulePing();
      },
      falseVar
    );
    /** endif **/
    /** endif **/

    /** if scroll **/
    var body = doc.body || {};
    var position = function () {
      try {
        var documentClientHeight = documentElement[clientHeight] || 0;
        var height = Math.max(
          body[scrollHeight] || 0,
          body[offsetHeight] || 0,
          documentElement[clientHeight] || 0,
          documentElement[scrollHeight] || 0,
          documentElement[offsetHeight] || 0
        );
        return Math.min(
          100,
          Math.round(
            (100 * ((documentElement.scrollTop || 0) + documentClientHeight)) /
              height /
              5
          ) * 5
        );
      } catch (error) {
        warn(error);
        return 0;
      }
    };

    addEventListenerFunc("load", function () {
      scrolled = position();
      addEventListenerFunc(
        scroll,
        function () {
          if (scrolled < position()) scrolled = position();
        },
        falseVar
      );
    });
    /** endif **/

    /////////////////////
    // ACTUAL PAGE VIEW LOGIC
    //

    var getPath = function (overwrite) {
      var path = "";

      // decodeURIComponent can fail when having invalid characters
      // https://github.com/simpleanalytics/roadmap/issues/462
      try {
        path = overwrite || decodeURIComponentFunc(loc.pathname);
      } catch (error) {
        warn(error);
      }

      /** if pathoverwriter **/
      var pathOverwriterFunction = window[pathOverwriter];
      if (isFunction(pathOverwriterFunction)) {
        try {
          path = pathOverwriterFunction.call(window, { path: path }) || path;
        } catch (error) {
          warnInFunction("path", error);
        }
      }
      /** endif **/

      /** if ignorepages **/
      // Ignore pages specified in data-ignore-pages
      if (shouldIgnore(path)) {
        warn(notSendingWhen + "ignoring " + path);
        return;
      }
      /** endif **/

      /** if hash **/
      // Add hash to path when script is put in to hash mode
      if (mode == "hash" && loc.hash) path += loc.hash.split("?")[0];
      /** endif **/

      return path;
    };

    var previousReferrer;

    // Send page view and append data to it
    var sendPageView = function (
      isPushState,
      deleteSourceInfo,
      sameSite,
      search,
      metadata,
      callback
    ) {
      /** if (or duration scroll) **/
      // Finish the previous page view (SPA navigation or manual pageview)
      if (pages) sendOnLeave("" + payload.page_id, trueVar);

      // Every page view starts with its own counters
      /** if duration **/
      updateVisibleTime();
      visibleMs = 0;
      /** endif **/
      /** if scroll **/
      scrolled = 0;
      /** endif **/
      /** endif **/
      if (collectDataOnLeave) payload.page_id = uuid();

      var currentPage = definedHostname + getPath();
      var query = getQueryParams(deleteSourceInfo, search);

      sendData(
        {
          id: payload.page_id,
          type: pageviewText,
          referrer: !deleteSourceInfo || sameSite ? referrer : null,
          query: query,
          // Script URL without query, to see which scripts sites embed
          src:
            scriptElement &&
            scriptElement.src &&
            scriptElement.src.split("?")[0],
          /** if ignoremetrics **/
          k: k,
          /** endif **/

          /** if metadata **/
          metadata: stringify(metadata),
          /** endif **/
        },
        callback
      );

      previousReferrer = referrer;
      referrer = currentPage;

      pages++;

      /** if duration **/
      schedulePing();
      /** endif **/
    };

    var sameSite, userNavigated;

    var pageview = function (
      isPushState,
      pathOverwrite,
      metadata,
      callbackRaw
    ) {
      if (!callbackRaw && isFunction(metadata)) callbackRaw = metadata;
      var callback = isFunction(callbackRaw) ? callbackRaw : function () {};
      var querySearch = "";
      if (isString(pathOverwrite) && pathOverwrite.indexOf("?") > -1) {
        // keep query from manual path
        var parts = pathOverwrite.split("?");
        pathOverwrite = parts.shift();
        querySearch = "?" + parts.join("?");
      }
      // Obfuscate personal data in URL by dropping the search and hash
      var path = getPath(pathOverwrite);

      // Don't send the last path again (this could happen when pushState is used to change the path hash or search)
      var pathKey = path + querySearch;
      /** if (or spa hash) **/
      // Manual pageview callbacks also run when the pageview is skipped
      if (!path || lastSendPath == pathKey) return callback();
      /** else **/
      if (!path || lastSendPath == pathKey) return;
      /** endif **/

      lastSendPath = pathKey;
      page.path = path;

      /** if screen **/
      // v = viewportsizes
      if (collectMetricByString("v")) {
        page.viewport_width =
          Math.max(documentElement[clientWidth] || 0, window.innerWidth || 0) ||
          null;
        page.viewport_height =
          Math.max(
            documentElement[clientHeight] || 0,
            window.innerHeight || 0
          ) || null;
      }
      /** endif **/

      // l = language
      if (collectMetricByString("l")) {
        if (nav[language]) page[language] = nav[language];
      }

      /** if screen **/
      // scre = screensizes
      if (screen && collectMetricByString("scre")) {
        page.screen_width = screen.width;
        page.screen_height = screen.height;
      }
      /** endif **/

      // If a user does refresh we need to delete the referrer because otherwise it count double
      var perf = window.performance;
      var navigationText = "navigation";

      // Check if back, forward or reload buttons are being used in modern browsers
      var performaceEntryType;
      try {
        performaceEntryType = perf.getEntriesByType(navigationText)[0].type;
      } catch (error) {
        warn(error);
      }

      userNavigated = performaceEntryType
        ? ["reload", "back_forward"].indexOf(performaceEntryType) > -1
        : // Check if back, forward or reload buttons are being use in older browsers
          // 1: TYPE_RELOAD, 2: TYPE_BACK_FORWARD
          perf &&
          perf[navigationText] &&
          [1, 2].indexOf(perf[navigationText].type) > -1;

      // Check if referrer is the same as current real hostname (not the defined hostname!)
      /** if nonuniquehostnames **/
      // The cleaned referrer has no www. and uses the defined hostname, so compare
      // the raw referrer. Later pageviews have our previous page as referrer.
      var rawReferrer = getReferrer(trueVar);
      var ownHost = rawReferrer.split(slash)[2] == locationHostname;
      var currentReferrerHostname = referrer
        ? referrer.split(slash)[0]
        : undefinedVar;
      sameSite = referrer
        ? pages ||
          ownHost ||
          nonUniqueHostnames.indexOf(currentReferrerHostname) > -1
        : falseVar;
      /** else **/
      sameSite = referrer
        ? referrer.split(slash)[0] == locationHostname
        : falseVar;
      /** endif **/

      /** if uniques **/
      // Cloudflare challenges (managed challenge, "I'm Under Attack" mode) run on
      // this site and then load the page with the challenge URL as referrer, so
      // new visitors look like internal navigation. The first pageview with such
      // a referrer counts as unique, and we drop that referrer: the original one
      // is lost (the browser replaced it and we don't run on the challenge page),
      // and the queue marks pageviews with our own hostname as referrer
      // non-unique. We check the raw referrer because the cleaned one has no www.
      // and can have an overwritten hostname. The assignment returns undefined,
      // so `!` keeps true.
      page.unique =
        isPushState || userNavigated
          ? falseVar
          : (!pages &&
              ownHost &&
              /[?&]__cf_/.test(rawReferrer) &&
              !(referrer = undefinedVar)) ||
            !sameSite;
      /** endif **/

      /** if metadata **/
      metadata = appendMetadata(metadata, {
        type: pageviewText,
        path: page.path,
      });
      /** endif **/

      var triggerSendPageView = function () {
        fetchedHighEntropyValues = trueVar;
        var delSrc =
          isPushState || userNavigated || !collectMetricByString("r");
        sendPageView(
          isPushState,
          delSrc, // r = referrers
          sameSite,
          querySearch,
          metadata,
          callback
        );
      };

      if (!fetchedHighEntropyValues) {
        // Request platform information if this is available
        try {
          if (uaData && isFunction(uaData.getHighEntropyValues)) {
            uaData
              .getHighEntropyValues([platformText, platformVersionText])
              .then(function (highEntropyValues) {
                payload.os_name = highEntropyValues[platformText];
                payload.os_version = highEntropyValues[platformVersionText];
                triggerSendPageView();
              })
              .catch(triggerSendPageView);
          } else {
            triggerSendPageView();
          }
        } catch (e) {
          triggerSendPageView();
        }
      } else {
        triggerSendPageView();
      }
    };

    /** if spa **/
    /////////////////////
    // AUTOMATED PAGE VIEW COLLECTION
    //

    var his = window.history;
    var hisPushState = his ? his.pushState : undefinedVar;
    var dis = window.dispatchEvent;
    var pushStateText = "pushState";

    // Overwrite history pushState function to
    // allow listening on the pushState event
    if (autoCollect && hisPushState && Event && dis) {
      var stateListener = function (type) {
        var orig = his[type];
        return function () {
          var arg = arguments;
          var rv = orig.apply(this, arg);
          var event;
          if (isFunction(Event)) {
            event = new Event(type);
          } else {
            // Fix for IE
            // https://github.com/simpleanalytics/scripts/issues/8
            event = doc.createEvent("Event");
            event.initEvent(type, trueVar, trueVar);
          }
          event.arguments = arg;
          dis(event);
          return rv;
        };
      };

      his.pushState = stateListener(pushStateText);

      addEventListenerFunc(
        pushStateText,
        function () {
          pageview(1);
        },
        falseVar
      );

      addEventListenerFunc(
        "popstate",
        function () {
          pageview(1);
        },
        falseVar
      );
    }
    /** endif **/

    /** if hash **/
    // When in hash mode, we record a pageview based on the onhashchange function
    if (autoCollect && mode == "hash" && "onhashchange" in window) {
      addEventListenerFunc(
        "hashchange",
        function () {
          pageview(1);
        },
        falseVar
      );
    }
    /** endif **/

    /** if (or spa hash) **/
    if (autoCollect) pageview();

    /** if metadata **/
    var manualPageview = function (path, metadata, callback) {
      pageview(0, path, metadata, callback);
    };
    /** else **/
    var manualPageview = function (path, callback) {
      pageview(0, path, undefinedVar, callback);
    };
    /** endif **/
    window[namespace + "_" + pageviewText] = manualPageview;
    var defaultPageview = defaultNamespace + "_" + pageviewText;
    if (!window[defaultPageview]) window[defaultPageview] = manualPageview;

    /** else **/
    pageview();
    /** endif **/

    /** if events **/
    /////////////////////
    // EVENTS
    //

    var validTypes = ["string", "number"];

    var sendEvent = function (event, metadata, callbackRaw, keepalive) {
      if (!callbackRaw && isFunction(metadata)) callbackRaw = metadata;

      var eventIsFunction = isFunction(event);
      var callback = isFunction(callbackRaw) ? callbackRaw : function () {};
      var eventType = typeof event;

      if (validTypes.indexOf(eventType) < 0 && !eventIsFunction) {
        warnInFunction(eventFunctionName, eventText + " can't be " + eventType);
        return callback();
      }

      try {
        if (eventIsFunction) {
          var eventOutput = event();
          if (validTypes.indexOf(typeof eventOutput) < 0) {
            warnInFunction(
              eventFunctionName,
              event + " returns no string: " + eventOutput
            );
            return callback();
          }
          event = eventOutput;
        }
      } catch (error) {
        warnInFunction(eventFunctionName, error);
        return callback();
      }

      event = ("" + event).replace(/[^a-z0-9]+/gi, "_").replace(/(^_|_$)/g, "");

      var eventParams = { type: eventText, event: event };
      var firstPage = !userNavigated && pages < 2;

      /** if metadata **/
      metadata = appendMetadata(metadata, eventParams);
      /** endif **/

      if (event) {
        sendData(
          assign(eventParams, {
            id: uuid(),
            query: getQueryParams(!firstPage),
            referrer:
              (firstPage || sameSite) && collectMetricByString("r")
                ? previousReferrer
                : null,

            /** if metadata **/
            metadata: stringify(metadata),
            /** endif **/
          }),
          callback,
          undefinedVar,
          keepalive
        );
      }
    };

    var defaultEventFunc = function (event, metadata, callback, keepalive) {
      sendEvent(event, metadata, callback, keepalive);
    };

    // Set default function if user didn't define a function
    if (!window[eventFunctionName])
      window[eventFunctionName] = defaultEventFunc;

    var eventFunc = window[eventFunctionName];

    // Read queue of the user defined function
    var queue = eventFunc && eventFunc.q ? eventFunc.q : [];

    // Overwrite user defined function
    window[eventFunctionName] = defaultEventFunc;

    // Automated events wait for this variable, for example ba_event_loaded
    window[eventFunctionName + "_loaded"] = trueVar;

    // Post events from the queue of the user defined function
    for (var event in queue) {
      if (hasProp(queue, event)) {
        Array.isArray(queue[event])
          ? sendEvent.apply(null, queue[event])
          : sendEvent(queue[event]);
      }
    }

    var lastInlineElement;
    var inlineEvent = function (event) {
      var element = event.target;
      while (
        element &&
        element !== doc &&
        (!element.getAttribute || attr(element, "simple-event") === null)
      )
        element = element.parentNode;

      if (!element || element === doc) return;
      var isForm = element.tagName === "FORM";
      var name = attr(element, "simple-event");
      if (!name || isForm !== (event.type === "submit")) return;

      var metadata = { tag: element.tagName.toLowerCase() };
      var attributes = element.attributes;
      for (var i = 0; i < attributes.length; i++) {
        var attribute = attributes[i];
        if (attribute.name.indexOf("data-simple-event-") === 0)
          metadata[attribute.name.slice(18).replace(/-/g, "_")] =
            attribute.value;
      }
      if (isForm) {
        var button = event.submitter;
        metadata.button_text = button
          ? (button.textContent || button.value || "")
              .replace(/\s+/g, " ")
              .trim()
              .slice(0, 200)
          : "";
      } else {
        // A label click also clicks its control, count one click per task
        if (element === lastInlineElement) return;
        lastInlineElement = element;
        setTimeout(function () {
          lastInlineElement = undefinedVar;
        });
      }
      sendEvent(name, metadata, undefinedVar, trueVar);
    };

    doc.addEventListener("click", inlineEvent, falseVar);
    doc.addEventListener("submit", inlineEvent, falseVar);

    // 404 confirmation adds a request, so existing installs must opt in.
    if (
      settings.detect404 === trueVar ||
      attr(scriptElement, "detect-404") == trueText
    ) {
      var detect404 = function () {
        if (
          !/\b404\b/.test(doc.title + " " + (doc.body && doc.body.textContent))
        )
          return;
        try {
          var request = new window.XMLHttpRequest();
          request.open("HEAD", loc.href, trueVar);
          request.onload = function () {
            if (request.status === 404)
              sendEvent("page_404", {
                url: loc.protocol + "//" + definedHostname + loc.pathname,
                status: 404,
              });
          };
          request.send();
        } catch (error) {}
      };
      if (doc.readyState === "loading")
        doc.addEventListener("DOMContentLoaded", detect404, falseVar);
      else detect404();
    }
    /** endif **/
  } catch (e) {
    /** if errorhandling **/
    sendError(e);
    /** else **/
    warn(e);
    /** endif **/
  }
})(
  // typeof is "undefined" without a window, which sorts after "u"
  typeof window < "u" && window,
  "{{baseUrl}}",
  "{{apiUrlPrefix}}",
  "{{scriptName}}",
  "{{namespace}}"
);