Store firmwares in DB

src/components/Dashboard.tsx

@@ -45,6 +45,7 @@ import {
   Select,
   SelectContent,
   SelectItem,
+  SelectSeparator,
   SelectTrigger,
   SelectValue,
 } from './UI/Select';
@@ -387,7 +388,8 @@ const FirmwareSelection = () => {
   let selectItems = [
     <SelectItem key={-1} value={"latest"}>
       {"Latest version"}
-    </SelectItem>
+    </SelectItem>,
+    <SelectSeparator/>
   ];
   let selection = selectedFirmware;  
   if(firmwareRefreshing) {
@@ -455,33 +457,55 @@ const FirmwareSelection = () => {
 
 export type FirmwareVersion = {
   name: string,
+  tag: string,
   link: string,
-  sections?: {
+  inLocalDb: boolean
-    data: Uint8Array,
+  // partitions: {[index: string]: Uint8Array},
-    offset: number
-  }[]
 }
 
 interface FirmwareGithubRelease {
   name: string,
+  tag_name: string,  
   assets: {
     name: string,
     browser_download_url: string
   }[]
 }
 
+async function isStoredInDb(firmwareTag: string): Promise<boolean> {
+    const dbs = await indexedDB.databases();
+    if(dbs.find(db => db.name == "firmwares") === undefined)
+        return false;
+    return new Promise<boolean>((resolve, reject) => {        
+        const db = indexedDB.open("firmwares");
+        db.onsuccess = () => {
+            if(!db.result.objectStoreNames.contains("files"))
+                resolve(false);
+            const objStore = db.result.transaction("files", "readonly").objectStore("files");
+            const transaction = objStore.getKey(firmwareTag);
+            transaction.onsuccess = () => resolve(transaction.result !== undefined);                
+            transaction.onerror = () => resolve(false);     
+        }
+    });
+}
+
 async function loadFirmwareList() : Promise<FirmwareVersion[]> {
   const releases: FirmwareGithubRelease[] = await (await fetch("https://api.github.com/repos/meshtastic/firmware/releases")).json();
   console.log(releases);
-  return releases.map(r => {
+  const firmwareDescriptions = await Promise.all(releases.map(async (r) => {
     const url = r.assets.find(a => a.name.startsWith("firmware"))!.browser_download_url;
     if(url === undefined)
       return undefined;
+    const tag = r.tag_name.substring(1);      // remove leading "v"    
     return { 
       name: r.name.replace("Meshtastic Firmware ", ""),
-      link: url
+      tag: tag,
+      link: url,
+      inLocalDb: await isStoredInDb(tag)
     };
-  }).filter(r => r !== undefined) as FirmwareVersion[];  
+  }));  
+  return firmwareDescriptions.filter(r => r !== undefined) as FirmwareVersion[];
+ 
 }
 
 function deviceStateToText(state: FlashState) {

src/core/flashing/Flasher.ts

@@ -1,3 +1,5 @@
+import JSZip from 'jszip';
+
 import type { FirmwareVersion } from '@app/components/Dashboard';
 import type {
   ISerialConnection,
@@ -21,8 +23,7 @@ export async function setup(configs: ConfigPreset[], firmware: FirmwareVersion,
     callback = overallCallback;
     console.log(`Firmware to use: ${firmware?.name} - ${firmware?.link}`);
     firmwareToUse = firmware;
-    if(firmware.sections === undefined)
+    await loadFirmware();    
-        await loadFirmware();    
     for(const c in configs) {
         const config = configs[c];
         for (let i = 0; i < config.count; i++) {
@@ -60,16 +61,80 @@ function handleFlashingDone() {
         callback("waiting");
 }
 
+function storeInDb(firmware: FirmwareVersion, file: ArrayBuffer) {
+    const db = indexedDB.open("firmwares");
+    db.onsuccess = () => {
+        debugger;
+        store(db.result, firmware, file);
+    };    
+    db.onupgradeneeded = (ev) => {
+        const objStore = db.result.createObjectStore("files");
+        debugger;
+        objStore.transaction.oncomplete = () => store(db.result, firmware, file);
+    };    
+}
+
+async function loadFromDb(firmware: FirmwareVersion) {    
+    return new Promise<ArrayBuffer>((resolve, reject) => {
+        const db = indexedDB.open("firmwares");
+        db.onsuccess = () => {
+            const objStore = db.result.transaction("files", "readonly").objectStore("files");
+            const transaction = objStore.get(firmware.tag);
+            transaction.onsuccess = () => {   
+                debugger;             
+                resolve(transaction.result as ArrayBuffer);
+            };
+            transaction.onerror = reject;            
+        }
+    });
+}
+
+function store(db: IDBDatabase, firmware: FirmwareVersion, file: ArrayBuffer) {
+    debugger;
+    const fileStore = db.transaction("files", "readwrite").objectStore("files");
+    fileStore.transaction.oncomplete = () => {        
+        console.log("Successfully stored firmware in DB.");
+    }
+    fileStore.add(file, firmware.tag);
+}
+
+async function getZipFile() {    
+    if(firmwareToUse.inLocalDb) {
+        const storedZip = await loadFromDb(firmwareToUse);
+        if(storedZip !== undefined)
+            return storedZip;
+    }
+
+    const zip = await fetch("firmware-2.1.5.23272da.zip");
+    const content = await zip.arrayBuffer();
+    storeInDb(firmwareToUse, content);
+    return content;
+}
+
+function getFileName() {
+    const device = "tlora-v2-1-1.6";
+    return `firmware-${device}-${firmwareToUse.tag}.bin`;
+}
+
 async function loadFirmware() {        
-    // // TODO: Error handling    
+    console.warn("Loading firmware");
-    // debugger;
+    // TODO: Error handling
-    // // TODO: Figure out CORS stuff
+    debugger;
-    // const zip = await fetch("https://api.allorigins.win/raw?url=" + firmwareToUse.link);
+    // TODO: Figure out CORS stuff
-    // debugger;
+
-
+    const zip = await getZipFile();
-    // await downloadFirmware("firmware-tlora-v2-1-1.6-2.0.6.97fd5cf.bin", 0, 0);
+    const z = await JSZip.loadAsync(zip);    
-    // await downloadFirmware("bleota.bin", 2490368, 1);
+    const filename = getFileName();
-    // await downloadFirmware("littlefs-2.0.6.97fd5cf.bin", 3145728, 2);
+    const mainFile = await z.file(filename)?.async("uint8array");
+    const bleoata = await z.file("bleota.bin")?.async("uint8array");
+    const littlefs = await z.file(`littlefs-${firmwareToUse.tag}.bin`)?.async("uint8array");
+    if(mainFile === undefined || bleoata === undefined || littlefs === undefined)
+        throw "Missing file(s)";
+    sections.push(...[
+        { offset: 0, data: mainFile },
+        { offset: 0x260000, data: bleoata },
+        { offset: 0x300000, data: littlefs }
+    ]);    
 }
 
 async function downloadFirmware(path: string, offset: number, slot: number) {     

src/core/stores/appStore.ts

@@ -95,7 +95,6 @@ export class ConfigPreset {
     config.power = new Protobuf.Config_PowerConfig();
     config.network = new Protobuf.Config_NetworkConfig();
     config.display = new Protobuf.Config_DisplayConfig();    
-    debugger;
     Object.entries(config).forEach(([sectionKey, value]) => {
       if(sectionKey == "version")
         return;