//
// Created by atdunbg on 2026/9/21.
//

#include <Engine/Renderer/Material.h>
#include <Engine/Vulkan/Device.h>
#include <Engine/Vulkan/MemoryAllocator.h>
#include <Engine/Vulkan/DescriptorManager.h>
#include <Engine/Vulkan/Texture.h>
#include <Engine/Core/Log.h>

namespace Engine
{
    Material::Material(Device& device,
                       DescriptorManager& descriptorManager,
                       vk::DescriptorSetLayout layout,
                       const std::array<Texture*, kSlotCount>& textures)
    : m_Textures(textures)
    {
        m_DescriptorSet = descriptorManager.AllocateDescriptorSet(layout);

        for (u32 slot = 0; slot < kSlotCount; ++slot) {
            descriptorManager.UpdateTexture(
                m_DescriptorSet, slot,
                m_Textures[slot]->GetSampler(),
                m_Textures[slot]->GetView());
        }
    }


    Material::~Material() = default;

    std::string Material::MakeCacheKey(const std::string paths[kSlotCount])
    {
        std::string key;
        for (u32 slot = 0; slot < kSlotCount; ++slot) {
            if (slot) key += '\n';
            key += paths[slot];
        }
        return key;
    }
} // namespace Engine