/*
 * 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 TRINITYCORE_GAMEOBJECT_H
#define TRINITYCORE_GAMEOBJECT_H

#include "Object.h"
#include "GridObject.h"
#include "GameObjectData.h"
#include "MapObject.h"
#include "SharedDefines.h"

class GameObject;
class GameObjectAI;
class GameObjectModel;
class OPvPCapturePoint;
class Transport;
class TransportBase;
class Unit;
struct Loot;
struct TransportAnimation;
enum TriggerCastFlags : uint32;

namespace Vignettes
{
struct VignetteData;
}

// enum for GAMEOBJECT_TYPE_NEW_FLAG
// values taken from world state
enum class FlagState : uint8
{
    InBase = 1,
    Taken,
    Dropped,
    Respawning
};

namespace WorldPackets
{
    namespace Battleground
    {
        enum class BattlegroundCapturePointState : uint8;
    }
}

// Base class for GameObject type specific implementations
class GameObjectTypeBase
{
public:
    class TC_GAME_API CustomCommand
    {
    public:
        virtual ~CustomCommand();
        virtual void Execute(GameObjectTypeBase& type) const = 0;
    };

    explicit GameObjectTypeBase(GameObject& owner) : _owner(owner) { }
    virtual ~GameObjectTypeBase() = default;

    virtual void Update([[maybe_unused]] uint32 diff) { }
    virtual void OnStateChanged([[maybe_unused]] GOState oldState, [[maybe_unused]] GOState newState) { }
    virtual void OnRelocated() { }
    virtual bool IsNeverVisibleFor([[maybe_unused]] WorldObject const* seer, [[maybe_unused]] bool allowServersideObjects) const { return false; }
    virtual void ActivateObject([[maybe_unused]] GameObjectActions action, [[maybe_unused]] int32 param, [[maybe_unused]] WorldObject* spellCaster = nullptr, [[maybe_unused]] uint32 spellId = 0, [[maybe_unused]] int32 effectIndex = -1) { }

protected:
    GameObject& _owner;
};

namespace GameObjectType
{
class TC_GAME_API SetTransportAutoCycleBetweenStopFrames : public GameObjectTypeBase::CustomCommand
{
public:
    explicit SetTransportAutoCycleBetweenStopFrames(bool on);

    void Execute(GameObjectTypeBase& type) const override;

private:
    bool _on;
};

class TC_GAME_API SetNewFlagState : public GameObjectTypeBase::CustomCommand
{
public:
    explicit SetNewFlagState(FlagState state, Player* player);

    void Execute(GameObjectTypeBase& type) const override;

private:
    FlagState _state;
    Player* _player;
};

class TC_GAME_API SetControlZoneValue : public GameObjectTypeBase::CustomCommand
{
public:
    explicit SetControlZoneValue(Optional<uint32> value = { });

    void Execute(GameObjectTypeBase& type) const override;

private:
    Optional<uint32> _value;
};

}

union GameObjectValue
{
    //25 GAMEOBJECT_TYPE_FISHINGHOLE
    struct
    {
        uint32 MaxOpens;
    } FishingHole;
    //29 GAMEOBJECT_TYPE_CONTROL_ZONE
    struct
    {
        OPvPCapturePoint *OPvPObj;
    } ControlZone;
    //33 GAMEOBJECT_TYPE_DESTRUCTIBLE_BUILDING
    struct
    {
        uint32 Health;
        ::DestructibleHitpoint const* DestructibleHitpoint;
    } Building;
    //42 GAMEOBJECT_TYPE_CAPTURE_POINT
    struct
    {
        TeamId LastTeamCapture;
        WorldPackets::Battleground::BattlegroundCapturePointState State;
        uint32 AssaultTimer;
    } CapturePoint;
};

// For containers:  [GO_NOT_READY]->GO_READY (close)->GO_ACTIVATED (open) ->GO_JUST_DEACTIVATED->GO_READY        -> ...
// For bobber:      GO_NOT_READY  ->GO_READY (close)->GO_ACTIVATED (open) ->GO_JUST_DEACTIVATED-><deleted>
// For door(closed):[GO_NOT_READY]->GO_READY (close)->GO_ACTIVATED (open) ->GO_JUST_DEACTIVATED->GO_READY(close) -> ...
// For door(open):  [GO_NOT_READY]->GO_READY (open) ->GO_ACTIVATED (close)->GO_JUST_DEACTIVATED->GO_READY(open)  -> ...
enum LootState
{
    GO_NOT_READY = 0,
    GO_READY,                                               // can be ready but despawned, and then not possible activate until spawn
    GO_ACTIVATED,
    GO_JUST_DEACTIVATED
};

// 5 sec for bobber catch
#define FISHING_BOBBER_READY_TIME 5

class TC_GAME_API GameObject : public WorldObject, public GridObject<GameObject>, public MapObject
{
    public:
        explicit GameObject();
        ~GameObject();

    protected:
        void BuildValuesCreate(ByteBuffer* data, UF::UpdateFieldFlag flags, Player const* target) const override;
        void BuildValuesUpdate(ByteBuffer* data, UF::UpdateFieldFlag flags, Player const* target) const override;
        void ClearUpdateMask(bool remove) override;

    public:
        void BuildValuesUpdateForPlayerWithMask(UpdateData* data, UF::ObjectData::Mask const& requestedObjectMask,
            UF::GameObjectData::Mask const& requestedGameObjectMask, Player const* target) const;

        struct ValuesUpdateForPlayerWithMaskSender // sender compatible with MessageDistDeliverer
        {
            explicit ValuesUpdateForPlayerWithMaskSender(GameObject const* owner) : Owner(owner) { }

            GameObject const* Owner;
            UF::ObjectData::Base ObjectMask;
            UF::GameObjectData::Base GameObjectMask;

            void operator()(Player const* player) const;
        };

        void AddToWorld() override;
        void RemoveFromWorld() override;
        void CleanupsBeforeDelete(bool finalCleanup = true) override;

    private:
        bool Create(uint32 entry, Map* map, Position const& pos, QuaternionData const& rotation, uint32 animProgress, GOState goState, uint32 artKit, bool dynamic, ObjectGuid::LowType spawnid);
    public:
        static GameObject* CreateGameObject(uint32 entry, Map* map, Position const& pos, QuaternionData const& rotation, uint32 animProgress, GOState goState, uint32 artKit = 0);
        static GameObject* CreateGameObjectFromDB(ObjectGuid::LowType spawnId, Map* map, bool addToMap = true);

        void Update(uint32 p_time) override;
        GameObjectTemplate const* GetGOInfo() const { return m_goInfo; }
        GameObjectTemplateAddon const* GetTemplateAddon() const { return m_goTemplateAddon; }
        GameObjectOverride const* GetGameObjectOverride() const;
        GameObjectData const* GetGameObjectData() const { return m_goData; }
        GameObjectValue const* GetGOValue() const { return &m_goValue; }

        bool IsTransport() const;
        bool IsDestructibleBuilding() const;

        ObjectGuid::LowType GetSpawnId() const { return m_spawnId; }

         // z_rot, y_rot, x_rot - rotation angles around z, y and x axes
        void SetLocalRotationAngles(float z_rot, float y_rot, float x_rot);
        void SetLocalRotation(float qx, float qy, float qz, float qw);
        void SetParentRotation(QuaternionData const& rotation);      // transforms(rotates) transport's path
        QuaternionData const& GetLocalRotation() const { return m_localRotation; }
        int64 GetPackedLocalRotation() const { return m_packedRotation; }

        QuaternionData GetWorldRotation() const;

        // overwrite WorldObject function for proper name localization
        std::string GetNameForLocaleIdx(LocaleConstant locale) const override;

        bool HasLabel(int32 gameobjectLabel) const;
        std::span<int32 const> GetLabels() const;

        void SaveToDB();
        void SaveToDB(uint32 mapid, std::vector<Difficulty> const& spawnDifficulties);
        bool LoadFromDB(ObjectGuid::LowType spawnId, Map* map, bool addToMap, bool = true); // arg4 is unused, only present to match the signature on Creature
        static bool DeleteFromDB(ObjectGuid::LowType spawnId);

        ObjectGuid GetCreatorGUID() const override { return m_gameObjectData->CreatedBy; }
        void SetOwnerGUID(ObjectGuid owner)
        {
            // Owner already found and different than expected owner - remove object from old owner
            if (!owner.IsEmpty() && !GetOwnerGUID().IsEmpty() && GetOwnerGUID() != owner)
            {
                ABORT();
            }
            m_spawnedByDefault = false;                     // all object with owner is despawned after delay
            SetUpdateFieldValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::CreatedBy), owner);
        }
        ObjectGuid GetOwnerGUID() const override { return m_gameObjectData->CreatedBy; }

        void SetSpellId(uint32 id)
        {
            m_spawnedByDefault = false;                     // all summoned object is despawned after delay
            m_spellId = id;
        }
        uint32 GetSpellId() const { return m_spellId;}

        time_t GetRespawnTime() const { return m_respawnTime; }
        time_t GetRespawnTimeEx() const;

        void SetRespawnTime(int32 respawn);
        void Respawn();
        bool isSpawned() const
        {
            return m_respawnDelayTime == 0 ||
                (m_respawnTime > 0 && !m_spawnedByDefault) ||
                (m_respawnTime == 0 && m_spawnedByDefault);
        }
        bool isSpawnedByDefault() const { return m_spawnedByDefault; }
        void SetSpawnedByDefault(bool b) { m_spawnedByDefault = b; }
        uint32 GetRespawnDelay() const { return m_respawnDelayTime; }
        void Refresh();
        void DespawnOrUnsummon(Milliseconds delay = 0ms, Seconds forceRespawnTime = 0s);
        void DespawnForPlayer(Player* seer, Seconds respawnTime);
        void Delete();
        void SendGameObjectDespawn();
        Loot* GetFishLoot(Player* lootOwner);
        Loot* GetFishLootJunk(Player* lootOwner);

        bool HasFlag(GameObjectFlags flags) const { return (*m_gameObjectData->Flags & flags) != 0; }
        void SetFlag(GameObjectFlags flags) { SetUpdateFieldFlagValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::Flags), flags); }
        void RemoveFlag(GameObjectFlags flags) { RemoveUpdateFieldFlagValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::Flags), flags); }
        void ReplaceAllFlags(GameObjectFlags flags) { SetUpdateFieldValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::Flags), flags); }

        void SetLevel(uint32 level) { SetUpdateFieldValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::Level), level); }
        GameobjectTypes GetGoType() const { return GameobjectTypes(*m_gameObjectData->TypeID); }
        void SetGoType(GameobjectTypes type) { SetUpdateFieldValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::TypeID), type); }
        GOState GetGoState() const { return GOState(*m_gameObjectData->State); }
        void SetGoState(GOState state);
        GOState GetGoStateFor(ObjectGuid const& viewer) const;
        void SetGoStateFor(GOState state, Player const* viewer);
        uint32 GetGoArtKit() const { return m_gameObjectData->ArtKit; }
        void SetGoArtKit(uint32 artkit);
        uint8 GetGoAnimProgress() const { return m_gameObjectData->PercentHealth; }
        void SetGoAnimProgress(uint8 animprogress) { SetUpdateFieldValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::PercentHealth), animprogress); }
        static void SetGoArtKit(uint32 artkit, GameObject* go, ObjectGuid::LowType lowguid = UI64LIT(0));

        std::vector<uint32> const* GetPauseTimes() const;
        Optional<float> GetPathProgressForClient() const { return m_transportPathProgress; }
        void SetPathProgressForClient(float progress);

        void EnableCollision(bool enable);

        void Use(Unit* user, bool ignoreCastInProgress = false);

        LootState getLootState() const { return m_lootState; }
        // Note: unit is only used when s = GO_ACTIVATED
        void SetLootState(LootState s, Unit* unit = nullptr);

        uint16 GetLootMode() const { return m_LootMode; }
        bool HasLootMode(uint16 lootMode) const { return (m_LootMode & lootMode) != 0; }
        void SetLootMode(uint16 lootMode) { m_LootMode = lootMode; }
        void AddLootMode(uint16 lootMode) { m_LootMode |= lootMode; }
        void RemoveLootMode(uint16 lootMode) { m_LootMode &= ~lootMode; }
        void ResetLootMode() { m_LootMode = LOOT_MODE_DEFAULT; }
        void ClearLoot();
        bool IsFullyLooted() const;
        void OnLootRelease(Player* looter);

        void AddToSkillupList(ObjectGuid const& PlayerGuidLow) { m_SkillupList.insert(PlayerGuidLow); }
        bool IsInSkillupList(ObjectGuid const& playerGuid) const
        {
            return m_SkillupList.count(playerGuid) > 0;
        }
        void ClearSkillupList() { m_SkillupList.clear(); }

        void AddUniqueUse(Player* player);
        void AddUse() { ++m_usetimes; }

        uint32 GetUseCount() const { return m_usetimes; }
        uint32 GetUniqueUseCount() const { return uint32(m_unique_users.size()); }

        void SaveRespawnTime(uint32 forceDelay = 0);

        std::unique_ptr<Loot> m_loot;
        std::unordered_map<ObjectGuid, std::unique_ptr<Loot>> m_personalLoot;

        GuidUnorderedSet const& GetTapList() const { return m_tapList; }
        void SetTapList(GuidUnorderedSet tapList) { m_tapList = std::move(tapList); }
        bool IsLootAllowedFor(Player const* player) const;
        bool HasLootRecipient() const { return !m_tapList.empty(); }
        Loot* GetLootForPlayer(Player const* /*player*/) const override;

        GameObject* GetLinkedTrap();
        void SetLinkedTrap(GameObject* linkedTrap) { m_linkedTrap = linkedTrap->GetGUID(); }

        bool hasQuest(uint32 quest_id) const override;
        bool hasInvolvedQuest(uint32 quest_id) const override;
        bool HasConditionalInteraction() const;
        bool CanActivateForPlayer(Player const* target) const;
        bool ActivateToQuest(Player const* target) const;
        void UseDoorOrButton(uint32 time_to_restore = 0, bool alternative = false, Unit* user = nullptr);
                                                            // 0 = use `gameobject`.`spawntimesecs`
        void ResetDoorOrButton();
        void ActivateObject(GameObjectActions action, int32 param, WorldObject* spellCaster = nullptr, uint32 spellId = 0, int32 effectIndex = -1);

        void TriggeringLinkedGameObject(uint32 trapEntry, Unit* target);

        bool IsNeverVisibleFor(WorldObject const* seer, bool allowServersideObjects = false) const override;
        bool IsAlwaysVisibleFor(WorldObject const* seer) const override;
        bool IsInvisibleDueToDespawn(WorldObject const* seer) const override;

        uint8 GetLevelForTarget(WorldObject const* target) const override;

        GameObject* LookupFishingHoleAround(float range);

        void SendCustomAnim(uint32 anim);
        bool IsInRange(float x, float y, float z, float radius) const;

        void ModifyHealth(int32 change, WorldObject* attackerOrHealer = nullptr, uint32 spellId = 0);
        // sets GameObject type 33 destruction flags and optionally default health for that state
        void SetDestructibleState(GameObjectDestructibleState state, WorldObject* attackerOrHealer = nullptr, bool setHealth = false);
        GameObjectDestructibleState GetDestructibleState() const
        {
            if ((*m_gameObjectData->Flags & GO_FLAG_DESTROYED))
                return GO_DESTRUCTIBLE_DESTROYED;
            if ((*m_gameObjectData->Flags & GO_FLAG_DAMAGED))
                return GO_DESTRUCTIBLE_DAMAGED;
            return GO_DESTRUCTIBLE_INTACT;
        }

        // There's many places not ready for dynamic spawns. This allows them to live on for now.
        void SetRespawnCompatibilityMode(bool mode = true) { m_respawnCompatibilityMode = mode; }
        bool GetRespawnCompatibilityMode() {return m_respawnCompatibilityMode; }

        std::string const& GetAIName() const;
        uint32 GetScriptId() const;
        GameObjectAI* AI() const { return m_AI; }

        void InheritStringIds(GameObject const* parent);
        bool HasStringId(std::string_view id) const;
        void SetScriptStringId(std::string id);
        std::string_view GetStringId(StringIdType type) const { return m_stringIds[size_t(type)] ? std::string_view(*m_stringIds[size_t(type)]) : std::string_view(); }

        SpawnTrackingStateData const* GetSpawnTrackingStateDataForPlayer(Player const* player) const override;

        void SetDisplayId(uint32 displayid);
        uint32 GetDisplayId() const { return m_gameObjectData->DisplayID; }
        uint8 GetNameSetId() const;

        uint32 GetFaction() const override { return m_gameObjectData->FactionTemplate; }
        void SetFaction(uint32 faction) override { SetUpdateFieldValue(m_values.ModifyValue(&GameObject::m_gameObjectData).ModifyValue(&UF::GameObjectData::FactionTemplate), faction); }

        GameObjectModel* m_model;
        void GetRespawnPosition(float &x, float &y, float &z, float* ori = nullptr) const;

        TransportBase* ToTransportBase() { return const_cast<TransportBase*>(const_cast<GameObject const*>(this)->ToTransportBase()); }
        TransportBase const* ToTransportBase() const;

        Transport* ToTransport() { if (GetGOInfo()->type == GAMEOBJECT_TYPE_MAP_OBJ_TRANSPORT) return reinterpret_cast<Transport*>(this); else return nullptr; }
        Transport const* ToTransport() const { if (GetGOInfo()->type == GAMEOBJECT_TYPE_MAP_OBJ_TRANSPORT) return reinterpret_cast<Transport const*>(this); else return nullptr; }

        Position const& GetStationaryPosition() const override { return m_stationaryPosition; }
        void RelocateStationaryPosition(float x, float y, float z, float o) { m_stationaryPosition.Relocate(x, y, z, o); }
        void RelocateStationaryPosition(Position const& pos) { m_stationaryPosition.Relocate(pos); }

        void AfterRelocation();

        float GetInteractionDistance() const;

        void UpdateModelPosition();

        bool IsAtInteractDistance(Position const& pos, float radius) const;
        bool IsAtInteractDistance(Player const* player, SpellInfo const* spell = nullptr) const;

        bool IsWithinDistInMap(Player const* player) const;
        using WorldObject::IsWithinDistInMap;

        SpellInfo const* GetSpellForLock(Player const* player) const;

        uint16 GetAIAnimKitId() const override { return _animKitId; }
        void SetAnimKitId(uint16 animKitId, bool oneshot);

        uint32 GetWorldEffectID() const { return _worldEffectID; }
        void SetWorldEffectID(uint32 worldEffectID) { _worldEffectID = worldEffectID; }

        Vignettes::VignetteData const* GetVignette() const { return m_vignette.get(); }
        void SetVignette(uint32 vignetteId);

        void SetSpellVisualId(int32 spellVisualId, ObjectGuid activatorGuid = ObjectGuid::Empty);
        void AssaultCapturePoint(Player* player);
        void UpdateCapturePoint();
        bool CanInteractWithCapturePoint(Player const* target) const;
        FlagState GetFlagState() const;
        ObjectGuid const& GetFlagCarrierGUID() const;
        time_t GetFlagTakenFromBaseTime() const;

        GuidUnorderedSet const* GetInsidePlayers() const;

        bool MeetsInteractCondition(Player const* user) const;

        void AIM_Destroy();
        bool AIM_Initialize();

        std::string GetDebugInfo() const override;

        void UpdateDynamicFlagsForNearbyPlayers();

        void HandleCustomTypeCommand(GameObjectTypeBase::CustomCommand const& command) const;

        UF::UpdateField<UF::GameObjectData, int32(WowCS::EntityFragment::CGObject), TYPEID_GAMEOBJECT> m_gameObjectData;

        TeamId GetControllingTeam() const;

    protected:
        void CreateModel();
        void UpdateModel();                                 // updates model in case displayId were changed
        uint32      m_spellId;
        time_t      m_respawnTime;                          // (secs) time of next respawn (or despawn if GO have owner()),
        uint32      m_respawnDelayTime;                     // (secs) if 0 then current GO state no dependent from timer
        uint32      m_despawnDelay;
        Seconds     m_despawnRespawnTime;                   // override respawn time after delayed despawn
        LootState   m_lootState;
        ObjectGuid  m_lootStateUnitGUID;                    // GUID of the unit passed with SetLootState(LootState, Unit*)
        bool        m_spawnedByDefault;
        time_t      m_restockTime;
        time_t      m_cooldownTime;                         // used as internal reaction delay time store (not state change reaction).
                                                            // For traps this: spell casting cooldown, for doors/buttons: reset time.
        GOState     m_prevGoState;                          // What state to set whenever resetting

        GuidSet m_SkillupList;

        ObjectGuid m_ritualOwnerGUID;                       // used for GAMEOBJECT_TYPE_RITUAL where GO is not summoned (no owner)
        GuidSet m_unique_users;
        uint32 m_usetimes;

        typedef std::map<uint32, ObjectGuid> ChairSlotAndUser;
        ChairSlotAndUser ChairListSlots;

        ObjectGuid::LowType m_spawnId;                               ///< For new or temporary gameobjects is 0 for saved it is lowguid
        GameObjectTemplate const* m_goInfo;
        GameObjectTemplateAddon const* m_goTemplateAddon;
        GameObjectData const* m_goData;
        std::unique_ptr<GameObjectTypeBase> m_goTypeImpl;
        GameObjectValue m_goValue; // TODO: replace with m_goTypeImpl
        std::array<std::string const*, 3> m_stringIds;
        Optional<std::string> m_scriptStringId;

        int64 m_packedRotation;
        QuaternionData m_localRotation;
        Position m_stationaryPosition;

        GuidUnorderedSet m_tapList;
        uint16 m_LootMode;                                  // bitmask, default LOOT_MODE_DEFAULT, determines what loot will be lootable

        ObjectGuid m_linkedTrap;

    private:
        void RemoveFromOwner();
        void SwitchDoorOrButton(bool activate, bool alternative = false);
        void UpdatePackedRotation();

        //! Object distance/size - overridden from Object::_IsWithinDist. Needs to take in account proper GO size.
        bool _IsWithinDist(WorldObject const* obj, float dist2compare, bool /*is3D*/, bool /*incOwnRadius*/, bool /*incTargetRadius*/) const override
        {
            //! Following check does check 3d distance
            return IsInRange(obj->GetPositionX(), obj->GetPositionY(), obj->GetPositionZ(), dist2compare);
        }

        GameObjectAI* m_AI;
        bool m_respawnCompatibilityMode;
        uint16 _animKitId;
        uint32 _worldEffectID;
        Optional<float> m_transportPathProgress;

        std::unique_ptr<Vignettes::VignetteData> m_vignette;

        struct PerPlayerState
        {
            SystemTimePoint ValidUntil = SystemTimePoint::min();
            Optional<GOState> State;
            bool Despawned = false;
        };

        std::unique_ptr<std::unordered_map<ObjectGuid, PerPlayerState>> m_perPlayerState;

        std::unordered_map<ObjectGuid, PerPlayerState>& GetOrCreatePerPlayerStates();
};
#endif