;(function(exports){'use strict';const SETTINGS={notificationVolume:'audio.volume.notification',vibration:'vibration.enabled'};const ATTENTION_PATTERN=[4,1,2,1,2,1];ATTENTION_PATTERN.push(...ATTENTION_PATTERN);const ATTENTION_SOUND_VOLUME=0.3;function getSetting(key){if(!navigator.mozSettings){return Promise.reject(new Error('The mozSettings API is not available.'));}
return navigator.mozSettings.createLock().get(key).then((result)=>result[key]);}
function getSettings(settings){return Promise.all(settings.map(getSetting)).catch((e)=>{console.error('Error while retrieving settings',e.message,e);return settings.map(()=>null);}).then((results)=>{return settings.reduce((result,setting,i)=>{result[setting]=results[i];return result;},{});});}
function getAttentionCurveWave(){var result=[];var currentValue=ATTENTION_SOUND_VOLUME;ATTENTION_PATTERN.forEach(duration=>{for(var i=0;i<duration;i++){result.push(currentValue);}
currentValue=ATTENTION_SOUND_VOLUME-currentValue;});return new Float32Array(result);}
function ringtone(){var audioChannel='notification';var audioCtx=new AudioContext(audioChannel);var o1=audioCtx.createOscillator();var o2=audioCtx.createOscillator();var gain=audioCtx.createGain();var time=audioCtx.currentTime;o1.type=o2.type='sine';o1.frequency.value=853;o2.frequency.value=960;o1.start();o2.start();o1.stop(time+11);o2.stop(time+11);var wave=getAttentionCurveWave();gain.gain.setValueCurveAtTime(wave,time,11);o1.connect(gain);o2.connect(gain);gain.connect(audioCtx.destination);}
function vibrate(){var pattern=ATTENTION_PATTERN.map((value)=>value*500);if(document.hidden){window.addEventListener('visibilitychange',function waitOn(){window.removeEventListener('visibilitychange',waitOn);navigator.vibrate(pattern);});}else{navigator.vibrate(pattern);}}
var Notify={notify:function notification_ringtone(){return getSettings([SETTINGS.notificationVolume,SETTINGS.vibration]).then((settings)=>{if(settings[SETTINGS.notificationVolume]){ringtone();}
if(settings[SETTINGS.vibration]){vibrate();}});}};exports.Notify=Notify;}(this));