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#include "src/tint/lang/core/constant/composite.h"

#include "gtest/gtest.h"
#include "src/tint/lang/core/constant/scalar.h"
#include "src/tint/lang/core/fluent_types.h"
#include "src/tint/lang/core/type/f32.h"
#include "src/tint/lang/core/type/vector.h"

using namespace tint::core::number_suffixes;  // NOLINT
using namespace tint::core::fluent_types;     // NOLINT

namespace tint::core::constant {
namespace {

using ConstantTest_Composite = testing::Test;

TEST_F(ConstantTest_Composite, AllZero) {
    Manager constants;
    auto* vec3f = constants.types.vec(constants.types.f32(), 3u);

    auto* fPos0 = constants.Get(0_f);
    auto* fNeg0 = constants.Get(-0_f);
    auto* fPos1 = constants.Get(1_f);
    auto* fNeg1 = constants.Get(-1_f);

    auto* compositePosZeros = constants.Composite(vec3f, Vector{fPos0, fPos0, fPos0});
    auto* compositeNegZeros = constants.Composite(vec3f, Vector{fNeg0, fNeg0, fNeg0});
    auto* compositeMixed = constants.Composite(vec3f, Vector{fNeg0, fPos1, fPos0});
    auto* compositePosNeg = constants.Composite(vec3f, Vector{fNeg1, fPos1, fPos1});

    EXPECT_TRUE(compositePosZeros->AllZero());
    EXPECT_TRUE(compositeNegZeros->AllZero());
    EXPECT_FALSE(compositeMixed->AllZero());
    EXPECT_FALSE(compositePosNeg->AllZero());
}

TEST_F(ConstantTest_Composite, AnyZero) {
    Manager constants;
    auto* vec3f = constants.types.vec(constants.types.f32(), 3u);

    auto* fPos0 = constants.Get(0_f);
    auto* fNeg0 = constants.Get(-0_f);
    auto* fPos1 = constants.Get(1_f);
    auto* fNeg1 = constants.Get(-1_f);

    auto* compositePosZeros = constants.Composite(vec3f, Vector{fPos0, fPos0, fPos0});
    auto* compositeNegZeros = constants.Composite(vec3f, Vector{fNeg0, fNeg0, fNeg0});
    auto* compositeMixed = constants.Composite(vec3f, Vector{fNeg0, fPos1, fPos0});
    auto* compositePosNeg = constants.Composite(vec3f, Vector{fNeg1, fPos1, fPos1});

    EXPECT_TRUE(compositePosZeros->AnyZero());
    EXPECT_TRUE(compositeNegZeros->AnyZero());
    EXPECT_TRUE(compositeMixed->AnyZero());
    EXPECT_FALSE(compositePosNeg->AllZero());
}

TEST_F(ConstantTest_Composite, Index) {
    Manager constants;
    auto* vec2f = constants.types.vec(constants.types.f32(), 2u);

    auto* fPos0 = constants.Get(0_f);
    auto* fPos1 = constants.Get(1_f);

    auto* composite = constants.Composite(vec2f, Vector{fPos1, fPos0});

    ASSERT_NE(composite->Index(0), nullptr);
    ASSERT_NE(composite->Index(1), nullptr);
    ASSERT_EQ(composite->Index(2), nullptr);

    EXPECT_TRUE(composite->Index(0)->Is<Scalar<f32>>());
    EXPECT_EQ(composite->Index(0)->As<Scalar<f32>>()->ValueOf(), 1.0);
    EXPECT_TRUE(composite->Index(1)->Is<Scalar<f32>>());
    EXPECT_EQ(composite->Index(1)->As<Scalar<f32>>()->ValueOf(), 0.0);
}

TEST_F(ConstantTest_Composite, Clone) {
    Manager constants;
    auto* vec2f = constants.types.vec(constants.types.f32(), 2u);

    auto* fPos0 = constants.Get(0_f);
    auto* fPos1 = constants.Get(1_f);

    auto* composite = constants.Composite(vec2f, Vector{fPos1, fPos0});

    constant::Manager mgr;
    constant::CloneContext ctx{core::type::CloneContext{{nullptr}, {nullptr, &mgr.types}}, mgr};

    auto* r = composite->As<Composite>()->Clone(ctx);
    ASSERT_NE(r, nullptr);
    EXPECT_TRUE(r->type->Is<core::type::Vector>());
    EXPECT_FALSE(r->all_zero);
    EXPECT_TRUE(r->any_zero);
    ASSERT_EQ(r->elements.Length(), 2u);
}

}  // namespace
}  // namespace tint::core::constant
