small refactor

content.js

@@ -55,7 +55,7 @@ async function downloadApplicantFilesWithProgress(applicantDetails, token, onPro
       throw `Failed to download file ${afile.file_id} for applicant ${applicantDetails.id}`
     }
 
-    afile.bytes = new Uint8Array(await response.arrayBuffer())
+    afile.bytes = await response.bytes()
     completedDownloads += 1
     downloadedBytes += afile.bytes.length
     onProgress({ downloaded: completedDownloads, total: files.length, bytes: downloadedBytes })
@@ -120,7 +120,7 @@ async function getApplicants() {
       return {
         aid,
         token,
-        applicants: jsonData//.slice(0, 5)
+        applicants: jsonData
       }
       // return { aid, token, applicants: jsonData }
     })
@@ -287,23 +287,45 @@ function getFflate() {
 }
 
 async function createZipBlob(archiveEntries) {
-
-  console.log(archiveEntries)
+  const { Zip, ZipPassThrough } = getFflate()
 
   return new Promise((resolve, reject) => {
-    fflate.zip(archiveEntries, { mem: 9, level: 0, consume: true }, (error, data) => {
+    const chunks = []
+    const zip = new Zip()
+    let settled = false
+
+    zip.ondata = (error, chunk, final) => {
+      if (settled) {
+        return
+      }
+
       if (error != null) {
+        settled = true
         reject(error)
         return
       }
 
-      resolve(data)
+      chunks.push(chunk)
+
+      if (final) {
+        settled = true
+        resolve(new Blob(chunks, { type: "application/zip" }))
+      }
+    }
+
+    try {
+      Object.entries(archiveEntries).forEach(([path, bytes]) => {
+        const file = new ZipPassThrough(path)
+
+        zip.add(file)
+        file.push(bytes, true)
       })
-    // resolve(fflate.zipSync(archiveEntries, { level: 0, consume: true }))
-  })
-    .then((archiveBytes) => {
-      console.log("producing blob")
-      return new Blob([archiveBytes], { type: "application/zip" })
+
+      zip.end()
+    } catch (error) {
+      settled = true
+      reject(error)
+    }
   })
 }
 
@@ -508,7 +530,7 @@ function rip(event) {
 
         archiveFiles.forEach((archiveFile, index) => {
           const afile = applicantDetails.application_files[index]
-          archiveEntries[archiveFile.relativePath] = afile.bytes
+          archiveEntries[archiveFile.relativePath] = new Uint8Array(afile.bytes)
         })
       })
 
@@ -528,7 +550,7 @@ function rip(event) {
 
       console.log("Generating zip archive...")
 
-      createZipBlob(archiveEntries)
+      return createZipBlob(archiveEntries)
         .then((zipBlob) => {
           console.log("Zip archive is ready.")
           progressDialog.setStatus("Download ready.")