// =====================================================================
// WebServerManager.h
//
// Wi-Fi + HTTP REST API + WebSocket live feed, ported from the
// ESP32-LD2450 project's AsyncWebServer/AsyncWebSocket setup.
// Protocol-agnostic: only ever touches RadarFrame/RadarTarget and
// ZoneManager, never raw radar bytes.
// =====================================================================
#pragma once

#include <Arduino.h>
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include "LD2453Parser.h"
#include "ZoneManager.h"

class WebServerManager {
public:
    WebServerManager(ZoneManager &zoneManager);

    // Blocks briefly (via delay in the WiFi connect retry loop only,
    // as in the original project) until Wi-Fi is up, then starts the
    // HTTP + WebSocket server. Call once from setup().
    void begin(const char *ssid, const char *password);

    // Non-blocking. Call every loop() iteration: reconnects Wi-Fi if
    // dropped, and prunes disconnected WebSocket clients.
    void loop();

    // Broadcasts one normalized JSON payload (see README "Web Data
    // Format") to all connected WebSocket clients for this frame.
    // No-op if no clients are connected.
    void broadcastFrame(const RadarFrame &frame);
    
    IPAddress getLocalIP() const { return WiFi.localIP(); }
    bool isWifiConnected() const { return WiFi.status() == WL_CONNECTED; }

private:
    ZoneManager &_zoneManager;
    AsyncWebServer _server;
    AsyncWebSocket _ws;

    void setupRoutes();
    static void onWsEvent(AsyncWebSocket *server, AsyncWebSocketClient *client,
                           AwsEventType type, void *arg, uint8_t *data, size_t len);
};