#include "entities/EntityFactory.h"
#include "entities/ComponentFactory.h"
#include "common/SpdLogger.h"
#include "workspace/WorkSpace.h"
#include <QStringList>

template<> EntityFactory* Singleton<EntityFactory>::instance_ = nullptr;

Entity* EntityFactory::CreateEntity(const QString& type, WorkSpace* workspace) {
    auto it = creators_.find(type);
    if (it == creators_.end()) {
        LOG_WARN("EntityFactory::CreateEntity - Unknown entity type: {}", type.toStdString());
        return nullptr;
    }

    Entity* entity = it->second->CreateEntity(workspace);
    if (!entity) {
        LOG_ERROR("EntityFactory::CreateEntity - Failed to create entity of type: {}", type.toStdString());
        return nullptr;
    }

    LOG_INFO("EntityFactory::CreateEntity - Successfully created entity of type: {}", type.toStdString());
    return entity;
}

Entity* EntityFactory::CreateEntityWithComponents(const QString& type, const QString& mesh, bool useLabel, WorkSpace* workspace) {
    Entity* entity = CreateEntity(type, workspace);
    if (!entity) {
        return nullptr;
    }

    auto it = creators_.find(type);
    if (it == creators_.end()) {
        return entity;
    }

    // Get default mesh
    QString defaultMesh = it->second->GetDefaultMesh();
    if (!mesh.isEmpty()) {
        defaultMesh = mesh;
    }
    if (!defaultMesh.isEmpty()) {
        SceneComponent* meshComponent = ComponentFactory::Create("MeshComponent", nullptr);
        if (meshComponent) {
            meshComponent->SetAttribute("mesh", defaultMesh.toLocal8Bit());
            meshComponent->AttachEntity(entity);
            LOG_INFO("EntityFactory::CreateEntityWithComponents - Added MeshComponent with mesh: {}", defaultMesh.toStdString());
        }
    }

    if (useLabel) {
        SceneComponent* rootComponent = entity->GetRootComponent();
        if (nullptr == rootComponent) {
            SceneComponent* meshComponent = ComponentFactory::Create("LabelComponent", nullptr);
            if (meshComponent) {
                meshComponent->AttachEntity(entity);
                LOG_INFO("EntityFactory::CreateEntityWithComponents - Added LabelComponent with mesh: {}", defaultMesh.toStdString());
            }
        }
        else {
            SceneComponent* LabelComponent = ComponentFactory::Create("LabelComponent", rootComponent);
            if (LabelComponent) {
                LabelComponent->AttachTo(rootComponent);
                LOG_INFO("EntityFactory::CreateEntityWithComponents - Added LabelComponent with mesh: {}", defaultMesh.toStdString());
            }
        }
    }

    // Add required components
    QStringList requiredComponents = it->second->GetRequiredComponents();
    SceneComponent* rootComponent = entity->GetRootComponent();
    
    for (int i = 0; i < requiredComponents.size(); ++i) {
        QString componentType = requiredComponents.at(i);
        SceneComponent* component = ComponentFactory::Create(componentType, rootComponent);
        if (component && rootComponent) {
            component->AttachTo(rootComponent);
            LOG_INFO("EntityFactory::CreateEntityWithComponents - Added component: {}", componentType.toStdString());
        } else {
            LOG_WARN("EntityFactory::CreateEntityWithComponents - Failed to create component: {}", componentType.toStdString());
        }
    }

    return entity;
}

QStringList EntityFactory::GetRegisteredTypes() const {
    QStringList types;
    for (auto it = creators_.begin(); it != creators_.end(); ++it) {
        types.append(it->first);
    }
    return types;
}

QString EntityFactory::GetDisplayName(const QString& type) const {
    auto it = creators_.find(type);
    if (it != creators_.end()) {
        return it->second->GetDisplayName();
    }
    return type; // 返回类型名作为默认显示名
}

QString EntityFactory::GetDescription(const QString& type) const {
    auto it = creators_.find(type);
    if (it != creators_.end()) {
        return it->second->GetDescription();
    }
    return QString();
}

QString EntityFactory::GetDefaultMesh(const QString& type) const {
    auto it = creators_.find(type);
    if (it != creators_.end()) {
        return it->second->GetDefaultMesh();
    }
    return QString();
}

QStringList EntityFactory::GetRequiredComponents(const QString& type) const {
    auto it = creators_.find(type);
    if (it != creators_.end()) {
        return it->second->GetRequiredComponents();
    }
    return QStringList();
}

bool EntityFactory::IsTypeSupported(const QString& type) const {
    return creators_.find(type) != creators_.end();
}