text: /*
   *   BSD LICENSE
   *   Copyright (c) 2021 Samsung Electronics Corporation
   *   All rights reserved.
   *
   *   Redistribution and use in source and binary forms, with or without
   *   modification, are permitted provided that the following conditions
   *   are met:
   *
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in
   *       the documentation and/or other materials provided with the
   *       distribution.
   *     * Neither the name of Intel Corporation nor the names of its
   *       contributors may be used to endorse or promote products derived
   *       from this software without specific prior written permission.
   *
   *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "state_list.h"
  
  #include <algorithm>
  
  #include "src/include/ibof_event_id.h"
  #include "src/logger/logger.h"
  namespace ibofos
  {
  StateList::~StateList()
  {
      contextList.clear();
  }
  
  void
  StateList::Add(StateContext ctx)
  {
      if (Exist(ctx) == false)
      {
          listMutex.lock();
          clock_gettime(CLOCK_REALTIME, &ctx.issued_time);
          contextList.push_back(ctx);
          IBOF_TRACE_DEBUG((int)IBOF_EVENT_ID::STATE_CONTEXT_UPDATED,
              "statecontext added - {}", ctx.GetUuid());
          sort(contextList.begin(), contextList.end());
          StateContext next = contextList.front();
          listMutex.unlock();
          listUpdated(next);
      }
  }
  
  void
  StateList::Remove(StateContext ctx)
  {
      auto it = Find(ctx);
      if (it != contextList.end())
      {
          listMutex.lock();
          IBOF_TRACE_DEBUG((int)IBOF_EVENT_ID::STATE_CONTEXT_UPDATED,
              "statecontext removed - {}", ctx.GetUuid());
          contextList.erase(it);
          StateContext next = contextList.front();
          listMutex.unlock();
          listUpdated(next);
      }
  }
  
  bool
  StateList::Exist(StateContext ctx)
  {
      return Find(ctx) != contextList.end();
  }
  
  bool
  StateList::ExistRebuild(void)
  {
      bool exist = false;
  
      listMutex.lock();
      for (StateContext ctx : contextList)
      {
          if (ctx.GetSituation() == Situation::REBUILDING)
          {
              exist = true;
              break;
          }
      }
      listMutex.unlock();
      return exist;
  }
  
  void
  StateList::AddandRemove(StateContext add, StateContext remove)
  {
      IBOF_TRACE_DEBUG((int)IBOF_EVENT_ID::STATE_CONTEXT_UPDATED,
          "statecontext add {} and remove {}",
          add.GetUuid(), remove.GetUuid());
      bool isChanged = false;
      listMutex.lock();
      if (Exist(add) == false)
      {
          clock_gettime(CLOCK_REALTIME, &add.issued_time);
          contextList.push_back(add);
          isChanged = true;
      }
  
      auto it = Find(remove);
      if (it != contextList.end())
      {
          contextList.erase(it);
          isChanged = true;
      }
  
      if (isChanged == true)
      {
          sort(contextList.begin(), contextList.end());
          StateContext next = contextList.front();
          listMutex.unlock();
          listUpdated(next);
      }
      else
      {
          listMutex.unlock();
      }
  }
  
  vector<StateContext>::iterator
  StateList::Find(StateContext ctx)
  {
      return find(contextList.begin(), contextList.end(), ctx);
  }
  
  } // namespace ibofos
  