glu

import { getNextSample } from './bytebeat-engine.js'; // The glue code from TeaVM

let audioContext;
let scriptNode; // Using ScriptProcessorNode for simplicity, but AudioWorklet is better for low latency

function startAudio() {
    // 1. Create the Audio Context (The entry point to the DAC path)
    audioContext = new (window.AudioContext || window.webkitAudioContext)();
    
    // 2. Create the Node that will generate the audio data (The Wasm-to-DAC bridge)
    // Buffer size of 4096 is common; adjust for lower latency.
    scriptNode = audioContext.createScriptProcessor(4096, 0, 1); 

    scriptNode.onaudioprocess = function(event) {
        // Get the output buffer array (float32 array)
        const outputBuffer = event.outputBuffer.getChannelData(0); 

        for (let i = 0; i < outputBuffer.length; i++) {
            // 3. PULL SAMPLES FROM WASM COMPONENT
            const sample = getNextSample(); 
            
            // Normalize byte sample (0-255) to Web Audio API float range (-1.0 to 1.0)
            outputBuffer[i] = (sample / 128.0) - 1.0; 
        }
    };

    // 4. Connect the generator node to the speakers (the destination)
    scriptNode.connect(audioContext.destination); 
    document.getElementById('status').textContent = 'Status: Streaming Bytebeat (DAC Benchmark Active)';
}

// NOTE: Browsers often start AudioContext in a 'suspended' state until user interaction.