test download button label

Author: PalmerAL

home.js

@@ -1,27 +1,60 @@
-fetch('https://services.minbrowser.org/web-events/v1/collect', {
-    method: 'post',
-    headers: {
-        'Content-Type': 'application/json'
-    },
-    body: JSON.stringify({
-        os: getUserPlatform(),
-        event: 'pageview',
-        version: 'a'
-    })
-})
+const variants = [
+    ['a', 0.8],
+    ['b', 0.2]
+]
+
+let chosenVariant = ''
+let sum = 0
+let r = Math.random();
+for (let variant of variants) {
+    sum += variant[1];
+    if (r <= sum) {
+        chosenVariant = variant[0]
+        break
+    }
+}
+
+document.body.classList.add('variant-' + chosenVariant)
 
-Array.from(document.querySelectorAll('.download-button')).forEach(function(button) {
-    button.addEventListener('click', function() {
-        fetch('https://services.minbrowser.org/web-events/v1/collect', {
-            method: 'post',
-            headers: {
-                'Content-Type': 'application/json'
-            },
-            body: JSON.stringify({
-                os: getUserPlatform(),
-                event: 'downloadbutton',
-                version: 'a'
+if (chosenVariant === 'b') {
+    Array.from(document.querySelectorAll('.download-button .button-label')).forEach(function(label) {
+        const platform = getUserPlatform()
+        if (platform === 'mac') {
+            label.textContent = 'Download for macOS';
+        } else if (platform === 'windows') {
+            label.textContent = 'Download for Windows';
+        } else if (platform === 'linux') {
+            label.textContent = 'Install for Linux';
+        }
+    });
+}
+
+if (window.location.hostname  === 'minbrowser.org') {
+    fetch('https://services.minbrowser.org/web-events/v1/collect', {
+        method: 'post',
+        headers: {
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+            os: getUserPlatform(),
+            event: 'pageview',
+            version: chosenVariant,
+        })
+    })
+    
+    Array.from(document.querySelectorAll('.download-button')).forEach(function(button) {
+        button.addEventListener('click', function() {
+            fetch('https://services.minbrowser.org/web-events/v1/collect', {
+                method: 'post',
+                headers: {
+                    'Content-Type': 'application/json'
+                },
+                body: JSON.stringify({
+                    os: getUserPlatform(),
+                    event: 'downloadbutton',
+                    version: chosenVariant
+                })
             })
         })
     })
-})
+}