InfiniTime/src/components/ble/AlertNotificationClient.h

#pragma once

#include <cstdint>
#include <functional>
#define min // workaround: nimble's min/max macros conflict with libstdc++
#define max
#include <host/ble_gap.h>
#undef max
#undef min
#include "BleClient.h"

namespace Pinetime {

  namespace System {
    class SystemTask;
  }

  namespace Controllers {
    class NotificationManager;

    class AlertNotificationClient : public BleClient {
      public:
        explicit AlertNotificationClient(Pinetime::System::SystemTask &systemTask,
                                         Pinetime::Controllers::NotificationManager &notificationManager);

        bool OnDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error, const ble_gatt_svc *service);
        int OnCharacteristicsDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error,
                                            const ble_gatt_chr *characteristic);
        int OnNewAlertSubcribe(uint16_t connectionHandle, const ble_gatt_error *error, ble_gatt_attr *attribute);
        int OnDescriptorDiscoveryEventCallback(uint16_t connectionHandle, const ble_gatt_error *error,
                                               uint16_t characteristicValueHandle, const ble_gatt_dsc *descriptor);
        void OnNotification(ble_gap_event *event);
        void Reset();
        void Discover(uint16_t connectionHandle, std::function<void(uint16_t)> lambda) override;

      private:
        static constexpr uint16_t ansServiceId{0x1811};
        static constexpr uint16_t supportedNewAlertCategoryId = 0x2a47;
        static constexpr uint16_t supportedUnreadAlertCategoryId = 0x2a48;
        static constexpr uint16_t newAlertId = 0x2a46;
        static constexpr uint16_t unreadAlertStatusId = 0x2a45;
        static constexpr uint16_t controlPointId = 0x2a44;

        static constexpr ble_uuid16_t ansServiceUuid{
                .u {.type = BLE_UUID_TYPE_16},
                .value = ansServiceId
        };
        static constexpr ble_uuid16_t supportedNewAlertCategoryUuid{
                .u {.type = BLE_UUID_TYPE_16},
                .value = supportedNewAlertCategoryId
        };
        static constexpr ble_uuid16_t supportedUnreadAlertCategoryUuid{
                .u {.type = BLE_UUID_TYPE_16},
                .value = supportedUnreadAlertCategoryId
        };
        static constexpr ble_uuid16_t newAlertUuid{
                .u {.type = BLE_UUID_TYPE_16},
                .value = newAlertId
        };
        static constexpr ble_uuid16_t unreadAlertStatusUuid{
                .u {.type = BLE_UUID_TYPE_16},
                .value = unreadAlertStatusId
        };
        static constexpr ble_uuid16_t controlPointUuid{
                .u {.type = BLE_UUID_TYPE_16},
                .value = controlPointId
        };

        uint16_t ansStartHandle = 0;
        uint16_t ansEndHandle = 0;
        uint16_t supportedNewAlertCategoryHandle = 0;
        uint16_t supportedUnreadAlertCategoryHandle = 0;
        uint16_t newAlertHandle = 0;
        uint16_t newAlertDescriptorHandle = 0;
        uint16_t newAlertDefHandle = 0;
        uint16_t unreadAlertStatusHandle = 0;
        uint16_t controlPointHandle = 0;
        bool isDiscovered = false;
        Pinetime::System::SystemTask &systemTask;
        Pinetime::Controllers::NotificationManager &notificationManager;
        std::function<void(uint16_t)> onServiceDiscovered;
        bool isCharacteristicDiscovered = false;
        bool isDescriptorFound = false;
    };
  }
}