limited Google Analytics usage tracking

mp3chapters · Nov 25, 2023 · 255a7c8 · 255a7c8
1 parent 321e9ba
commit 255a7c8
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Showing 2 changed files with 19 additions and 0 deletions.
diff --git a/main.js b/main.js
@@ -201,6 +201,7 @@ document.getElementById('podloveButton').addEventListener('click', function () {
     const container = document.getElementById('podlove');
     container.classList.remove("d-none");
     container.open = true;
+    gtag('event', 'podlove', {});
 });
 
 document.getElementById('copyPodloveButton').addEventListener('click', function () {

diff --git a/src/FileExport.js b/src/FileExport.js
@@ -7,6 +7,15 @@ async function exportFileBasedOnOldTags(file, tags) {
         isOrdered: true,
         elements: [],
     };
+    // collect coarse data for Google Analytics
+    const eventTag = {
+        durationMinutes: Math.round(window.chapters.duration / 60),
+        numChapters: window.chapters.getChapters().length,
+        usedImages: false,
+        usedURLs: false,
+        changedID3Fields: false,
+        changedCoverImage: false,
+    };
     let chapterIndex = 0;
     for (let chapter of window.chapters.getChapters()) {
         if (!chapter.error) {
@@ -22,13 +31,15 @@ async function exportFileBasedOnOldTags(file, tags) {
                 chapterObject.tags.userDefinedUrl = {
                     url: chapter.url,
                 }
+                eventTag.usedURLs = true;
             }
             if (chapter.hasOwnProperty('imageId')) {
                 try {
                     chapterObject.tags.image = await encodeImage(window.chapterImages[chapter.imageId]);
                 } catch (error) {
                     console.error('Error encoding image:', error);
                 }
+                eventTag.usedImages = true;
             }            
             chapterTag.push(chapterObject);
             tocTag.elements.push(`chp${chapterIndex}`);
@@ -44,10 +55,12 @@ async function exportFileBasedOnOldTags(file, tags) {
         if (input.value != input.dataset.oldValue) {
             tags[field] = input.value;
         }
+        eventTag.changedID3Fields = true;
     }
 
     if (window.coverImage != null) {
         tags.image = await encodeImage(window.coverImage);
+        eventTag.changedCoverImage = true;
     }
 
     // Call the addTags function from your bundle
@@ -64,6 +77,11 @@ async function exportFileBasedOnOldTags(file, tags) {
         downloadLink.download = window.currentFilename;
         downloadLink.click();
     });
+
+    if (window.currentFilename != "example.mp3") {
+        // send event to Google Analytics
+        gtag('event', 'export', eventTag);
+    }
 }
 
 export function exportFile(file) {