fallback download strat

1 files changed, 26 insertions, 23 deletions

diff --git a/client-web/source/sw/download_stream.ts b/client-web/source/sw/download_stream.ts
index 2a8049d..1a2fec8 100644
--- a/client-web/source/sw/download_stream.ts
+++ b/client-web/source/sw/download_stream.ts
@@ -1,30 +1,33 @@
+import { log } from "../logger.ts"
 import { SW } from "./init.ts"
 
-// export function StreamDownload(size: number, filename?: string, progress?: (position: number) => void) {
-//     let position = 0
-//     const buffer = new Uint8Array(size)
-//     return {
-//         close() {
-//             const a = document.createElement("a")
-//             a.href = URL.createObjectURL(new Blob([buffer], { type: "text/plain" }))
-//             a.download = filename ?? "file"
-//             a.click()
-//         },
-//         write(chunk: Blob) {
-//             const reader = new FileReader();
-//             reader.onload = function (event) {
-//                 const arr = new Uint8Array(event.target!.result as ArrayBuffer);
-//                 for (let i = 0; i < arr.length; i++, position++) {
-//                     buffer[position] = arr[i]
-//                 }
-//                 if (progress) progress(position)
-//             };
-//             reader.readAsArrayBuffer(chunk);
-//         }
-//     }
-// }
+function FallbackStreamDownload(size: number, filename?: string, progress?: (position: number) => void) {
+    log({ scope: "*", warn: true }, "downloading to memory because serviceworker is not available")
+    let position = 0
+    const buffer = new Uint8Array(size)
+    return {
+        close() {
+            const a = document.createElement("a")
+            a.href = URL.createObjectURL(new Blob([buffer], { type: "text/plain" }))
+            a.download = filename ?? "file"
+            a.click()
+        },
+        write(chunk: Blob) {
+            const reader = new FileReader();
+            reader.onload = function (event) {
+                const arr = new Uint8Array(event.target!.result as ArrayBuffer);
+                for (let i = 0; i < arr.length; i++, position++) {
+                    buffer[position] = arr[i]
+                }
+                if (progress) progress(position)
+            };
+            reader.readAsArrayBuffer(chunk);
+        }
+    }
+}
 
 export function StreamDownload(size: number, filename?: string, progress?: (position: number) => void) {
+    if (!SW) FallbackStreamDownload(size, filename, progress)
     let position = 0
 
     const path = `/download/${encodeURIComponent(filename ?? "file")}`