void MyApplication::OnInit() {
    WifiBoard *board = (WifiBoard*)(&Board::GetInstance());
    Display *display = board->GetDisplay();
    display->Rotate(1);

    //一、使用热点
    char *ssid = "esp32_ap";
    bool success = board->StartAP(ssid, ap_ip, ap_gateway, ap_subnet);
    std::string message = "AP:" + std::string(ssid) + ", IP:" + std::string(ap_ip.toString().c_str());
    
    // //二、连接已有WiFi网络
    // bool success = board->StartNetwork("ssid", "password", 10000);
    // std::string message = "IP:" + board->GetIpAddress();
    
    if (success) {
        Log::Info(TAG, message.c_str());
        display->GetWindow()->SetText(1, message);

        StartWebServer();
    } else {
        Log::Warn(TAG, "连接失败。");
        display->GetWindow()->SetText(1, "连接失败。");
    }
}

void MyApplication::StartWebServer() {
    webserver_ = new WebServer(80);

    webserver_->onNotFound([this]() { HandleDefault(); });

    webserver_->begin();

    webtask_ = new FrtTask("WebServer");
    webtask_->OnLoop([this](){
        webserver_->handleClient();
        delay(1);
    });
    webtask_->Start(8192, tskIDLE_PRIORITY+1);
}

void MyApplication::HandleDefault() {
    Display *display = Board::GetInstance().GetDisplay();

    FileSystem *fsys = Board::GetInstance().GetFileSystem(); 
    if (fsys == nullptr) {
        webserver_->send(500, "text/plain", "文件系统求初始化。");
        display->GetWindow()->SetText(2, "FileSystem init failed.");
        return;
    }

    String path = "/html" + webserver_->uri();
    if (fsys->ExistsFile(path.c_str())) {
        OutputFile(path);
        display->GetWindow()->SetText(3, "输出文件：" + std::string(path.c_str()));
        return;
    }

    webserver_->send(404, "text/plain", "File not found.");
    Log::Warn(TAG, "%s not found", path.c_str());
}

void MyApplication::OutputFile(String path) {
    String dataType = "text/plain";
    if (path.endsWith("/")) {
        path += "index.html";
    }

    if (path.endsWith(".htm") || path.endsWith(".html")) {
        dataType = "text/html";
    } else if (path.endsWith(".css")) {
        dataType = "text/css";
    } else if (path.endsWith(".js")) {
        dataType = "application/javascript";
    } else if (path.endsWith(".png")) {
        dataType = "image/png";
    } else if (path.endsWith(".gif")) {
        dataType = "image/gif";
    } else if (path.endsWith(".jpg")) {
        dataType = "image/jpeg";
    }

    FileSystem *fsys = Board::GetInstance().GetFileSystem(); 
    File f = fsys->OpenFile(path.c_str());
    webserver_->streamFile(f, dataType); // 输出文件内容
    f.close();
}