/**
 * Common utility functions.
 */
(function (context, $) {

  "use strict";

  context.JK = context.JK || {};
  var sessionUtils = {};
  var rest = new context.JK.Rest();
  context.JK.SessionUtils = sessionUtils;
  var logger = context.JK.logger;



  var LATENCY = sessionUtils.LATENCY = {
    ME : {description: "ME", style: "latency-me", min: -1, max: -1},
    GOOD : {description: "GOOD", style: "latency-good", min: 0.0, max: 40.0},
    MEDIUM : {description: "FAIR", style: "latency-fair", min: 40.0, max: 70.0},
    POOR : {description: "POOR", style: "latency-poor", min: 70.0, max: 100},
    UNACCEPTABLE: {description: "UNACCEPTABLE", style: "latency-unacceptable", min: 100, max: 10000000},
    UNKNOWN: {description: "UNKNOWN", style: "latency-unknown", min: -2, max: -2}
  };

  sessionUtils.createOpenSlot = function($openSlotsTemplate, slot) {
    var inst = context.JK.getInstrumentIcon24(slot.instrument_id);

    var proficiency_desc = slot.proficiency_desc;
    if(!proficiency_desc) {
      // this is to allow unstructured RSVPs to not specify proficiency_desc
      proficiency_desc = "Any Skill Level";
    }

    if(!slot.proficiency_desc) {
      proficiency_desc
    }
    var slot = {
      instrument_url: inst,
      instrument: slot.description,
      proficiency: proficiency_desc
    };

    return context.JK.fillTemplate($openSlotsTemplate.html(), slot);
  }

  sessionUtils.defaultTimezone = function($timezoneList) {
    var tz = jstz.determine().name();
    // first check if we have this particular timezone
    var found = null;
    if(tz) {
      found = $timezoneList.find('option[data-tz="' + tz +'"]')
    }

    if(found.length == 0 ) {
      // this is best effort path; it means some reason we couldn't match a timezone by jstz to our dropdown
      var offset = new Date().getTimezoneOffset() * 60; // convert to seconds to match data-utc-offset (seconds)
      found = $timezoneList.find('option[data-utc-offset="' + offset + '"]')
    }

    if(found.length > 0) {
      var defaultValue = found.attr('value');
      $timezoneList.easyDropDown('select', defaultValue).val(defaultValue);
    }
  }

  sessionUtils.scoreInfo = function(full_score, isSameUser) {
    var latencyDescription;
    var latencyStyle;
    var iconName;
    var description;

    if(isSameUser) {
      latencyDescription = LATENCY.ME.description;
      latencyStyle = LATENCY.ME.style;
      iconName = 'purple';
      description = 'me';
    }
    else if (!full_score) {
     latencyDescription = LATENCY.UNKNOWN.description;
      latencyStyle = LATENCY.UNKNOWN.style;
      iconName = 'purple'
      description = 'missing'
    }
    else if (full_score <= LATENCY.GOOD.max) {
      latencyDescription = LATENCY.GOOD.description;
      latencyStyle = LATENCY.GOOD.style;
      iconName = 'green'
      description = 'good'
    }
    else if (full_score <= LATENCY.MEDIUM.max) {
      latencyDescription = LATENCY.MEDIUM.description;
      latencyStyle = LATENCY.MEDIUM.style;
      iconName = 'yellow';
      description = 'fair'
    }
    else if (full_score <= LATENCY.POOR.max) {
      latencyDescription = LATENCY.POOR.description;
      latencyStyle = LATENCY.POOR.style;
      iconName = 'red'
      description = 'poor'
    }
    else {
      latencyStyle = LATENCY.UNACCEPTABLE.style;
      latencyDescription = LATENCY.UNACCEPTABLE.description;
      iconName = 'blue'
      description = 'unacceptable'
    }

    return {
      latency_style: latencyStyle,
      latency_text: latencyDescription,
      icon_name: iconName,
      description: description
    };
  }
  sessionUtils.createLatency = function(user) {
    return sessionUtils.scoreInfo(user.full_score, user.id === context.JK.currentUserId)
  }

  function clearAudioTimeout() {
    if(context.JK.AudioStopTimeout) {
      clearTimeout(context.JK.AudioStopTimeout);
      context.JK.AudioStopTimeout = null;
    }
  }

  sessionUtils.FTUEPageEnter = function() {
    logger.debug("sessionUtils: FTUEPageEnter");
    clearAudioTimeout();
    context.jamClient.FTUEPageEnter();
  }

  sessionUtils.FTUEPageLeave = function() {
    logger.debug("sessionUtils: FTUEPageLeave");
    clearAudioTimeout();
    context.jamClient.FTUEPageLeave();
  }

  sessionUtils.SessionPageEnter = function() {
    logger.debug("sessionUtils: SessionPageEnter");
    clearAudioTimeout();
    return context.jamClient.SessionPageEnter();
  }

  sessionUtils.SessionPageLeave = function() {
    logger.debug("sessionUtils: SessionPageLeave");
    clearAudioTimeout();
    context.jamClient.SessionPageLeave();
  }

})(window, jQuery);