#include "media_server_app.h"

#include <iostream>
#include <signal.h>
#include <string>

#include "graph_manager.h"
#include "utils/simple_json.h"

namespace rk3588 {

namespace {

GraphManager* g_manager = nullptr;

void HandleSignal(int) {
    if (g_manager) {
        std::cerr << "\n[MediaServerApp] Caught signal, stopping...\n";
        g_manager->RequestStop();
    }
}

}  // namespace

MediaServerApp::MediaServerApp(std::string config_path)
    : config_path_(std::move(config_path)) {}

int MediaServerApp::Start() {
    SimpleJson root_cfg;
    std::string err;
    if (!GraphManager::LoadConfigFile(config_path_, root_cfg, err)) {
        std::cerr << "[MediaServerApp] Failed to load config: " << err << "\n";
        return 1;
    }

    if (!graph_manager_.Build(root_cfg, err)) {
        std::cerr << "[MediaServerApp] Failed to build graphs: " << err << "\n";
        return 1;
    }

    g_manager = &graph_manager_;
    signal(SIGINT, HandleSignal);
    signal(SIGTERM, HandleSignal);

    if (!graph_manager_.StartAll()) {
        std::cerr << "[MediaServerApp] Failed to start graphs\n";
        return 1;
    }

    std::cout << "[MediaServerApp] Running. Press Ctrl+C to stop.\n";
    graph_manager_.BlockUntilStop();
    std::cout << "[MediaServerApp] Shutdown complete.\n";
    return 0;
}

}  // namespace rk3588