#include "entities/Entity.h"

#include <QUuid>

#include "common/SpdLogger.h"
#include "entities/SceneComponent.h"
#include "entities/EntitiesManager.h"
#include "entities/ComponentFactory.h"
#include "workspace/WorkSpace.h"


Entity::Entity(WorkSpace* workspace)
    : QObject(workspace)
    , workspace_(workspace) {
    Init();
}

Entity::Entity(const QString& name, QObject* parent)
    : QObject(parent)
    , name_(name) {
    Init();
}

Entity::~Entity() {
}

void Entity::Init() {
    QUuid uuid = QUuid::createUuid();
    uuid_ = uuid.toString();


}


void Entity::Serialize(const tinyxml2::XMLElement* element) {
    const tinyxml2::XMLAttribute* current = element->FirstAttribute();
    while (nullptr != current) {
        const char* aName = current->Name();
        const char* aValue = current->Value();
        SetAttribute(aName, aValue);
        current = current->Next();
    }

    const tinyxml2::XMLElement* xmlElement = element->FirstChildElement();
    while (nullptr != xmlElement) {
        const char* name = xmlElement->Name();
        SceneComponent* conponent = ComponentFactory::Create(name, rootComponet_);
        if (nullptr == conponent) {
            EntitiesManager::Get().Create(xmlElement, this, workspace_);

            xmlElement = xmlElement->NextSiblingElement();
            continue;
        }
        conponent->AttachEntity(this);

        conponent->Serialize(xmlElement);
        if (!rootComponet_) {
            rootComponet_ = conponent;
        }

        xmlElement = xmlElement->NextSiblingElement();
    }

}

void Entity::UnSerialize(tinyxml2::XMLElement* element) {
    tinyxml2::XMLElement* entityElement = element->InsertNewChildElement("Entity");
    entityElement->SetAttribute("uuid", uuid_.toStdString().c_str());
    entityElement->SetAttribute("name", name_.toStdString().c_str());

    if (nullptr == rootComponet_) {
        return;
    }

    rootComponet_->UnSerialize(entityElement);
}

bool Entity::SetAttribute(const char* name, const char* value) {
    if (0 == strcmp(name, "name")) {
        SetName(value);
        return true;
    } else if (0 == strcmp(name, "uuid")) {
        SetUUid(value);
        return true;
    }
    return false;
}

void Entity::Begin() {
    isRunning_ = true;

    if (nullptr == rootComponet_) {
        return;
    }
    rootComponet_->Begin();

    for (auto item : childer_) {
        item->Begin();
    }

    
}

void Entity::Update(double dt) {
    if (nullptr == rootComponet_) {
        return;
    }

    rootComponet_->Update(dt);

    for (auto item : childer_) {
        item->Update(dt);
    }
}

void Entity::End() {
    for (auto item : childer_) {
        item->End();
    }

    if (nullptr == rootComponet_) {
        return;
    }
    rootComponet_->End();
    isRunning_ = false;
}

void Entity::Destory() {
    LOG_INFO("destory entity, {}", name_.toLocal8Bit().constData());
    if (nullptr == workspace_) {
        LOG_WARN("workspace is nullptr");
        return;
    }

    for (auto* children : childer_) {
        children->Destory();
    }

    if (nullptr != rootComponet_) {
        rootComponet_->OnDestroy();
    }

    workspace_->RemoveEntity(this);
    EntitiesManager::Get().DeleteEntity(this);
}

class Transform* Entity::GetTransform() const {
    if (nullptr == rootComponet_) {
        return nullptr;
    }

    return rootComponet_->GetTransform();
}

void Entity::SetUUid(const QString& uuid) {
    uuid_ = uuid;
}

void Entity::UnLoad() {}

void Entity::SetName(const QString& name) {
    name_ = name;
    emit NameChanged(name_);
}

void Entity::SetWorkspace(class WorkSpace* workspace) {
    workspace_ = workspace;

    if (nullptr != rootComponet_) {
        rootComponet_->AddToRender();
    }
}

void Entity::SetParent(Entity* parent) {
    parent_ = parent;
    if (nullptr == parent) {
        LOG_WARN("parent is nullptr");
        return;
    }

    WorkSpace* workSpace = parent->GetWorkspace();
    SetWorkspace(workSpace);
    parent_->childer_.push_back(this);
}

bool Entity::HasComponent(const std::string& name) const {
    if (nullptr == rootComponet_) {
        return false;
    }
    return rootComponet_->HasComponent(name);
}

void Entity::SetVisible(bool v) {
    LOG_INFO("set visible: {}", v);
    if (nullptr == rootComponet_) {
        LOG_WARN("rootComponet_ is nullptr");
        return;
    }

    rootComponet_->SetVisible(v);
    for (auto item : childer_) {
        item->SetVisible(v);
    }
}

bool Entity::IsVisible() const {
    if (nullptr == rootComponet_) {
        LOG_WARN("rootComponet_ is nullptr");
        return false;
    }

    return rootComponet_->IsVisible();
}