/*****************************************************************************************
 *                                                                                       *
 * OpenSpace                                                                             *
 *                                                                                       *
 * Copyright (c) 2014-2020                                                               *
 *                                                                                       *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
 * software and associated documentation files (the "Software"), to deal in the Software *
 * without restriction, including without limitation the rights to use, copy, modify,    *
 * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
 * permit persons to whom the Software is furnished to do so, subject to the following   *
 * conditions:                                                                           *
 *                                                                                       *
 * The above copyright notice and this permission notice shall be included in all copies *
 * or substantial portions of the Software.                                              *
 *                                                                                       *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
 ****************************************************************************************/

#include <openspace/engine/syncengine.h>

#include <openspace/util/syncdata.h>
#include <ghoul/misc/assert.h>
#include <ghoul/misc/profiling.h>
#include <algorithm>

namespace openspace {

SyncEngine::SyncEngine(unsigned int syncBufferSize)
    : _syncBuffer(syncBufferSize)
{
    ghoul_assert(syncBufferSize > 0, "syncBufferSize must be bigger than 0");
}

// Should be called on sgct master
std::vector<std::byte> SyncEngine::encodeSyncables() {
    for (Syncable* syncable : _syncables) {
        syncable->encode(&_syncBuffer);
    }

    std::vector<std::byte> data = _syncBuffer.data();
    _syncBuffer.reset();
    return data;
}

// Should be called on sgct slaves
void SyncEngine::decodeSyncables(std::vector<std::byte> data) {
    _syncBuffer.setData(std::move(data));
    for (Syncable* syncable : _syncables) {
        syncable->decode(&_syncBuffer);
    }

    _syncBuffer.reset();
}

void SyncEngine::preSynchronization(IsMaster isMaster) {
    ZoneScoped

    for (Syncable* syncable : _syncables) {
        syncable->preSync(isMaster);
    }
}

void SyncEngine::postSynchronization(IsMaster isMaster) {
    ZoneScoped

    for (Syncable* syncable : _syncables) {
        syncable->postSync(isMaster);
    }
}

void SyncEngine::addSyncable(Syncable* syncable) {
    ghoul_assert(syncable, "Syncable must not be nullptr");

    _syncables.push_back(syncable);
}

void SyncEngine::addSyncables(const std::vector<Syncable*>& syncables) {
    for (Syncable* syncable : syncables) {
        ghoul_assert(syncable, "Syncables must not contain any nullptr");
        addSyncable(syncable);
    }
}

void SyncEngine::removeSyncable(Syncable* syncable) {
    _syncables.erase(
        std::remove(_syncables.begin(), _syncables.end(), syncable),
        _syncables.end()
    );
}

void SyncEngine::removeSyncables(const std::vector<Syncable*>& syncables) {
    for (Syncable* syncable : syncables) {
        removeSyncable(syncable);
    }
}

} // namespace openspace