lighthouse

api/hooks/lib/utils.js

@@ -46,8 +46,103 @@ function clearSSRCache() {
     context.response.header("X-SSR-Cleared", info.removed)
 }
 
+var { LIGHTHOUSE_TOKEN } = require("../config")
+function calculateAverageDynamically(dbObjs) {
+    const sumObj = {}
+    let count = 0
+
+    dbObjs.forEach((obj) => {
+        accumulate(obj, sumObj)
+        count++
+    })
+
+    function accumulate(sourceObj, targetObj) {
+        for (const key in sourceObj) {
+            if (typeof sourceObj[key] === "number") {
+                targetObj[key] = (targetObj[key] || 0) + sourceObj[key]
+            } else if (typeof sourceObj[key] === "object" && sourceObj[key] !== null) {
+                targetObj[key] = targetObj[key] || {}
+                accumulate(sourceObj[key], targetObj[key])
+            }
+        }
+    }
+
+    function average(targetObj) {
+        for (const key in targetObj) {
+            if (typeof targetObj[key] === "number") {
+                targetObj[key] = targetObj[key] / count
+            } else if (typeof targetObj[key] === "object") {
+                average(targetObj[key])
+            }
+        }
+    }
+
+    average(sumObj)
+    return sumObj
+}
+
+function run(url) {
+    const response = context.http
+        .fetch(url, {
+            timeout: 300,
+            method: "GET",
+            headers: {
+                "Content-Type": "application/json",
+            },
+        })
+        .body.json()
+    // needs enough traffic to be collected
+    const cruxMetrics = {
+        "First Contentful Paint": response?.loadingExperience?.metrics?.FIRST_CONTENTFUL_PAINT_MS?.category,
+        "First Input Delay": response?.loadingExperience?.metrics?.FIRST_INPUT_DELAY_MS?.category,
+    }
+    const lighthouse = response.lighthouseResult
+    const lighthouseMetrics = {
+        FCPS: lighthouse.audits["first-contentful-paint"].score * 100,
+        FCPV: lighthouse.audits["first-contentful-paint"].numericValue / 1000,
+        FMPS: lighthouse.audits["first-meaningful-paint"].score * 100,
+        FMPV: lighthouse.audits["first-meaningful-paint"].numericValue / 1000,
+
+        SIS: lighthouse.audits["speed-index"].score * 100,
+        SIV: lighthouse.audits["speed-index"].numericValue / 1000,
+        TTIS: lighthouse.audits["interactive"].score * 100,
+        TTIV: lighthouse.audits["interactive"].numericValue / 1000,
+
+        FPIDS: lighthouse.audits["max-potential-fid"].score * 100,
+        FPIDV: lighthouse.audits["max-potential-fid"].numericValue / 1000,
+    }
+
+    let dbObject = {
+        cruxMetrics,
+        lighthouseMetrics,
+        performance: Math.round(lighthouse.categories.performance.score * 100),
+        accessibility: Math.round(lighthouse.categories.accessibility.score * 100),
+        bestPractices: Math.round(lighthouse.categories["best-practices"].score * 100),
+        seo: Math.round(lighthouse.categories.seo.score * 100),
+    }
+    return dbObject
+}
+function setUpQuery(subPath = "/") {
+    const api = "https://www.googleapis.com/pagespeedonline/v5/runPagespeed"
+    let params = `category=performance&category=accessibility&category=best-practices&category=seo`
+
+    const parameters = {
+        url: encodeURIComponent(`https://www.fontis.de/${subPath}`),
+        key: LIGHTHOUSE_TOKEN,
+    }
+
+    let query = `${api}?`
+    for (let key in parameters) {
+        query += `${key}=${parameters[key]}&`
+    }
+    query += params // Append other parameters without URL encoding
+    return query
+}
 module.exports = {
     log,
     clearSSRCache,
     obj2str,
+    run,
+    setUpQuery,
+    calculateAverageDynamically,
 }