/*
 * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef LIBWINDOWMANAGER_H
#define LIBWINDOWMANAGER_H

#include <functional>
#include <json-c/json.h>

class LibWindowmanager {
public:
    LibWindowmanager();
    ~LibWindowmanager();

    LibWindowmanager(const LibWindowmanager &) = delete;
    LibWindowmanager &operator=(const LibWindowmanager &) = delete;

    using handler_fun = std::function<void(json_object *)>;

    /* DrawingArea name (usage: {layout}.{area}) */
    const std::string kStrLayoutNormal = "normal";
    const std::string kStrLayoutSplit = "split";
    const std::string kStrAreaFull = "full";
    const std::string kStrAreaMain = "main";
    const std::string kStrAreaSub = "sub";

    /* Key for json obejct */
    const char *kKeyDrawingName = "drawing_name";
    const char *kKeyDrawingArea = "drawing_area";
    const char *kKeyDrawingRect = "drawing_rect";
    const char *kKeyIviId = "ivi_id";

    enum EventType {
       Event_Active = 0,
       Event_Inactive,

       Event_Visible,
       Event_Invisible,

       Event_SyncDraw,
       Event_FlushDraw,

       Event_ScreenUpdated,

       Event_Error,

       Event_Val_Max = Event_Error
    };

    int init(int port, char const *token);

    // WM API
    int requestSurface(json_object *object);
    int requestSurfaceXDG(json_object *object);
    int activateWindow(json_object *object);
    int deactivateWindow(json_object *object);
    int endDraw(json_object *object);
    int getDisplayInfo(json_object *object);
    int getAreaInfo(json_object *in_obj, json_object *out_obj);

    int getAreaInfo(const char *label, json_object *out_obj);

    void set_event_handler(enum EventType et, handler_fun f);

    struct Impl;

    // These APIs are deprecated, please use new API
    THIS_FUNCTION_IS_DEPRECATED(int activateSurface(json_object *object));
    THIS_FUNCTION_IS_DEPRECATED(int deactivateSurface(json_object *object));

private:
    Impl *const d;
};
#endif // LIBWINDOWMANAGER_H