#include <stdexcept>
#include <iostream>
#include <vector>
#include <boost/uuid/uuid_io.hpp>
#include "ble/Bluetooth.h"
#include "apps.h"

namespace trygvis {
namespace apps {

using namespace std;
using namespace trygvis::bluetooth;
using namespace trygvis::apps;

class ble_inspect_device : public app {
public:
    ble_inspect_device() : app("ble-inspect-device") {}

    ~ble_inspect_device() override = default;

    string adapter_name;

    void add_options(po::options_description_easy_init &options) override {
        auto adapter_value = po::value<>(&adapter_name)->default_value("0");
        options("adapter", adapter_value, "Which adapter to use.");
        options("device", po::value<string>()->required(), "The MAC of the device to inspect");
        options("service", po::value<string>()->required(), "The UUID of the service to read");
        options("characteristic", po::value<string>()->required(), "The UUID of the characteristic to read");
    }

    int with_device(const shared_ptr<BluetoothDevice> &device, const Uuid &service_uuid, const Uuid &characteristic_uuid) {
        cout << "Inspecting device: " << device->getMac().str() << endl;

        auto gatt = device->connectGatt();
        cout << "Connected, discovering services" << endl;

        gatt->discoverServices();

        auto serviceO = gatt->findService(service_uuid);
        if (!serviceO) {
            cout << "Device does not requested service (" << service_uuid.str() << ")" << endl;
            return EXIT_FAILURE;
        }

        auto service = serviceO->get();
        auto characteristicO = service->findCharacteristic(characteristic_uuid);

        if (!characteristicO) {
            cout << "The device does not have requested characteristic (" << characteristic_uuid << ")" << endl;
            return EXIT_FAILURE;
        }

        auto characteristic = characteristicO.value();

        gatt->readValue(characteristic);

        return EXIT_SUCCESS;
    }

    int main(app_execution &execution) override {
        string mac_str = execution.vm["device"].as<string>();
        string service_str = execution.vm["service"].as<string>();
        string characteristic_str = execution.vm["characteristic"].as<string>();

        auto service_uuid = Uuid::fromString(service_str);
        auto characteristic_uuid = Uuid::fromString(characteristic_str);

        BluetoothSystem bluetoothSystem;

        try {
            Mac mac = Mac::parseMac(mac_str);

            auto adapter = bluetoothSystem.getAdapter(adapter_name);

            auto device = adapter->getDevice(mac);

            return with_device(device, service_uuid.value(), characteristic_uuid.value());
        } catch (std::runtime_error &ex) {
            cout << "std::runtime_error: " << ex.what() << endl;
            return EXIT_FAILURE;
        } catch (std::exception &ex) {
            cout << "std::exception: " << ex.what() << endl;
            return EXIT_FAILURE;
        }
    }
};
}
}

int main(int argc, const char *argv[]) {
    using namespace trygvis::apps;

    return real_main(new ble_inspect_device(), argc, argv);
}