#include "fixtures/RHITestFixture.h"
#include "XCEngine/RHI/RHISampler.h"

using namespace XCEngine::RHI;

TEST_P(RHITestFixture, Sampler_Create) {
    SamplerDesc desc = {};
    desc.filter = static_cast<uint32_t>(FilterMode::Linear);
    desc.addressU = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressV = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressW = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.mipLodBias = 0.0f;
    desc.maxAnisotropy = 16;
    desc.comparisonFunc = static_cast<uint32_t>(ComparisonFunc::Less);
    desc.borderColorR = 0.0f;
    desc.borderColorG = 0.0f;
    desc.borderColorB = 0.0f;
    desc.borderColorA = 0.0f;
    desc.minLod = 0.0f;
    desc.maxLod = 100.0f;

    RHISampler* sampler = GetDevice()->CreateSampler(desc);
    ASSERT_NE(sampler, nullptr);

    sampler->Shutdown();
    delete sampler;
}

TEST_P(RHITestFixture, Sampler_Bind_Unbind) {
    SamplerDesc desc = {};
    desc.filter = static_cast<uint32_t>(FilterMode::Linear);
    desc.addressU = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressV = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressW = static_cast<uint32_t>(TextureAddressMode::Wrap);

    RHISampler* sampler = GetDevice()->CreateSampler(desc);
    ASSERT_NE(sampler, nullptr);

    sampler->Bind(0);
    sampler->Unbind(0);

    sampler->Shutdown();
    delete sampler;
}

TEST_P(RHITestFixture, Sampler_GetID) {
    SamplerDesc desc = {};
    desc.filter = static_cast<uint32_t>(FilterMode::Linear);
    desc.addressU = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressV = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressW = static_cast<uint32_t>(TextureAddressMode::Wrap);

    RHISampler* sampler = GetDevice()->CreateSampler(desc);
    ASSERT_NE(sampler, nullptr);

    unsigned int id = sampler->GetID();
    EXPECT_GE(id, 0u);

    sampler->Shutdown();
    delete sampler;
}

TEST_P(RHITestFixture, Sampler_GetNativeHandle) {
    SamplerDesc desc = {};
    desc.filter = static_cast<uint32_t>(FilterMode::Linear);
    desc.addressU = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressV = static_cast<uint32_t>(TextureAddressMode::Wrap);
    desc.addressW = static_cast<uint32_t>(TextureAddressMode::Wrap);

    RHISampler* sampler = GetDevice()->CreateSampler(desc);
    ASSERT_NE(sampler, nullptr);

    EXPECT_NE(sampler->GetNativeHandle(), nullptr);

    sampler->Shutdown();
    delete sampler;
}