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#include "gmock/gmock.h"
#include "gtest/gtest-spi.h"
#include "src/tint/lang/core/ir/builder.h"
#include "src/tint/lang/core/ir/instruction.h"
#include "src/tint/lang/core/ir/ir_helper_test.h"

namespace tint::core::ir {
namespace {

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

using IR_StoreVectorElementTest = IRTestHelper;

TEST_F(IR_StoreVectorElementTest, Create) {
    auto* to = b.Var(ty.ptr<private_, vec3<i32>>());
    auto* inst = b.StoreVectorElement(to, 2_i, 4_i);

    ASSERT_TRUE(inst->Is<StoreVectorElement>());
    ASSERT_EQ(inst->To(), to->Result(0));

    ASSERT_TRUE(inst->Index()->Is<Constant>());
    auto index = inst->Index()->As<Constant>()->Value();
    ASSERT_TRUE(index->Is<core::constant::Scalar<i32>>());
    EXPECT_EQ(2_i, index->As<core::constant::Scalar<i32>>()->ValueAs<i32>());

    ASSERT_TRUE(inst->Value()->Is<Constant>());
    auto value = inst->Value()->As<Constant>()->Value();
    ASSERT_TRUE(value->Is<core::constant::Scalar<i32>>());
    EXPECT_EQ(4_i, value->As<core::constant::Scalar<i32>>()->ValueAs<i32>());
}

TEST_F(IR_StoreVectorElementTest, Usage) {
    auto* to = b.Var(ty.ptr<private_, vec3<i32>>());
    auto* inst = b.StoreVectorElement(to, 2_i, 4_i);

    ASSERT_NE(inst->To(), nullptr);
    EXPECT_THAT(inst->To()->Usages(), testing::UnorderedElementsAre(Usage{inst, 0u}));

    ASSERT_NE(inst->Index(), nullptr);
    EXPECT_THAT(inst->Index()->Usages(), testing::UnorderedElementsAre(Usage{inst, 1u}));

    ASSERT_NE(inst->Value(), nullptr);
    EXPECT_THAT(inst->Value()->Usages(), testing::UnorderedElementsAre(Usage{inst, 2u}));
}

TEST_F(IR_StoreVectorElementTest, Result) {
    auto* to = b.Var(ty.ptr<private_, vec3<i32>>());
    auto* inst = b.StoreVectorElement(to, 2_i, 4_i);

    EXPECT_TRUE(inst->Results().IsEmpty());
}

TEST_F(IR_StoreVectorElementTest, Clone) {
    auto* to = b.Var(ty.ptr<private_, vec3<i32>>());
    auto* inst = b.StoreVectorElement(to, 2_i, 4_i);

    auto* new_to = clone_ctx.Clone(to);
    auto* new_inst = clone_ctx.Clone(inst);

    EXPECT_NE(inst, new_inst);
    EXPECT_EQ(new_to->Result(0), new_inst->To());

    auto new_idx = new_inst->Index()->As<Constant>()->Value();
    ASSERT_TRUE(new_idx->Is<core::constant::Scalar<i32>>());
    EXPECT_EQ(2_i, new_idx->As<core::constant::Scalar<i32>>()->ValueAs<i32>());

    auto new_val = new_inst->Value()->As<Constant>()->Value();
    ASSERT_TRUE(new_val->Is<core::constant::Scalar<i32>>());
    EXPECT_EQ(4_i, new_val->As<core::constant::Scalar<i32>>()->ValueAs<i32>());
}

}  // namespace
}  // namespace tint::core::ir