sync

webpage/src/lib/protocol/commands/PlayFile.ts

@@ -0,0 +1,31 @@
+import { bus } from '../../bus/SerialBus';
+import { Command, FrameType } from '../constants';
+
+export class PlayFileCommand {
+    async execute(path: string): Promise<boolean | null> {
+        try {
+            const p = new TextEncoder().encode(path);
+            // Wir brauchen: 1 Byte Flags + 1 Byte Länge + Pfad
+            const req = new Uint8Array(p.length + 2);
+            
+            req[0] = 0x01;     // 1. Byte: Flags (LSB: 1 = sofort abspielen)
+            req[1] = p.length; // 2. Byte: Länge für get_path() im C-Code
+            req.set(p, 2);     // Ab 3. Byte: Der Pfad-String
+
+            await bus.sendRequest(Command.PLAY, req);
+            
+            // Warten auf das ACK vom Board
+            if (await bus.waitForSync()) {
+                const typeArr = await bus.readExact(1);
+                if (typeArr[0] === FrameType.ACK) {
+                    return true;
+                } 
+            }
+        } catch (e) {
+            console.error("PlayFileCommand failed:", e);
+        } finally {
+            bus.releaseReadLock();
+        }
+        return null;
+    }
+}