/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef SceneMgr_h__
#define SceneMgr_h__

#include "Common.h"
#include "Optional.h"
#include "SceneDefines.h"
#include <map>
#include <memory>
#include <vector>

class Player;
class WorldPacket;
struct Position;
struct SceneTemplate;

using SceneTemplateByInstance = std::map<uint32, std::unique_ptr<SceneTemplate>>;

class TC_GAME_API SceneMgr
{
public:
    SceneMgr(Player* player);
    ~SceneMgr();

    SceneMgr(SceneMgr const&) = delete;
    SceneMgr(SceneMgr&&) = delete;

    Player* GetPlayer() const { return _player; }

    uint32 PlayScene(uint32 sceneId, Position const* position = nullptr);
    uint32 PlaySceneByTemplate(SceneTemplate const* sceneTemplate, Position const* position = nullptr);
    uint32 PlaySceneByPackageId(uint32 sceneScriptPackageId, EnumFlag<SceneFlag> playbackflags, Position const* position = nullptr);
    void CancelScene(uint32 sceneInstanceID, bool removeFromMap = true);

    void OnSceneTrigger(uint32 sceneInstanceID, std::string const& triggerName);
    void OnSceneCancel(uint32 sceneInstanceID);
    void OnSceneComplete(uint32 sceneInstanceID);

    void RecreateScene(uint32 sceneScriptPackageId, EnumFlag<SceneFlag> playbackflags, Position const* position = nullptr)
    {
        CancelSceneByPackageId(sceneScriptPackageId);
        PlaySceneByPackageId(sceneScriptPackageId, playbackflags, position);
    }

    bool HasScene(uint32 sceneInstanceID, uint32 sceneScriptPackageId = 0) const;

    void AddInstanceIdToSceneMap(uint32 sceneInstanceID, SceneTemplate const* sceneTemplate);
    void CancelSceneBySceneId(uint32 sceneId);
    void CancelSceneByPackageId(uint32 sceneScriptPackageId);
    void RemoveSceneInstanceId(uint32 sceneInstanceID);
    void RemoveAurasDueToSceneId(uint32 sceneId);

    SceneTemplate const* GetSceneTemplateFromInstanceId(uint32 sceneInstanceID) const;
    uint32 GetActiveSceneCount(uint32 sceneScriptPackageId = 0) const;
    SceneTemplateByInstance const& GetSceneTemplateByInstanceMap() const { return _scenesByInstance; }
    Optional<uint32> GetInstanceIdBySceneId(uint32 sceneId) const;

    uint32 GetNewStandaloneSceneInstanceID() { return ++_standaloneSceneInstanceID; }

    void TriggerDelayedScenes();

    void ToggleDebugSceneMode() { _isDebuggingScenes = !_isDebuggingScenes; }
    bool IsInDebugSceneMode() const { return _isDebuggingScenes; }

private:
    Player* _player;
    SceneTemplateByInstance _scenesByInstance;
    uint32 _standaloneSceneInstanceID;
    std::vector<WorldPacket> _delayedScenes;
    bool _isDebuggingScenes;
};

#endif // SceneMgr_h__