/*
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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*/

#include <functional>

#include <hip_test_defgroups.hh>
#include <hip_test_common.hh>

#include "graph_memset_node_test_common.hh"
#include "graph_tests_common.hh"

/**
 * @addtogroup hipGraphExecMemsetNodeSetParams hipGraphExecMemsetNodeSetParams
 * @{
 * @ingroup GraphTest
 * `hipGraphExecMemsetNodeSetParams(hipGraphExec_t hGraphExec, hipGraphNode_t node, const
 * hipMemsetParams *pNodeParams)` -
 * Sets the parameters for a memset node in the given graphExec
 */

/**
 * Test Description
 * ------------------------
 *    - Verify that node parameters get updated correctly by creating a node with valid but
 * incorrect parameters, and then setting them to the correct values in the executable graph.
 * The executable graph is run and the results of the memset is verified.
 * hipGraphMemsetNodeGetParams is used to verify that node parameters in the graph were not updated,
 * which also constitutes a test for said API.
 * The test is repeated for all valid element sizes(1,
 * 2, 4), and several allocations of different width(height is always 1 because only 1D memset nodes
 * can be updated), both on host and device 
 * Test source
 * ------------------------
 *    - unit/graph/hipGraphExecMemsetNodeSetParams.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
TEMPLATE_TEST_CASE("Unit_hipGraphExecMemsetNodeSetParams_Positive_Basic", "", uint8_t, uint16_t,
                   uint32_t) {
  CHECK_IMAGE_SUPPORT

  const size_t width = GENERATE(1, 64, kPageSize / sizeof(TestType) + 1);

  hipGraph_t graph = nullptr;
  HIP_CHECK(hipGraphCreate(&graph, 0));

  hipGraphNode_t node = nullptr;
  LinearAllocGuard<TestType> initial_alloc(LinearAllocs::hipMalloc, 2 * sizeof(TestType));

  hipMemsetParams initial_params = {};
  initial_params.dst = initial_alloc.ptr();
  initial_params.elementSize = sizeof(TestType);
  initial_params.width = 2;
  initial_params.height = 1;
  HIP_CHECK(hipGraphAddMemsetNode(&node, graph, nullptr, 0, &initial_params));

  hipGraphExec_t graph_exec = nullptr;
  HIP_CHECK(hipGraphInstantiate(&graph_exec, graph, nullptr, nullptr, 0));

  LinearAllocGuard2D<TestType> alloc(width, 1);
  constexpr TestType set_value = 42;
  hipMemsetParams params = {};
  params.dst = alloc.ptr();
  params.elementSize = sizeof(TestType);
  params.width = width;
  params.height = 1;
  params.value = set_value;
  HIP_CHECK(hipGraphExecMemsetNodeSetParams(graph_exec, node, &params));

  hipMemsetParams retrieved_params = {};
  HIP_CHECK(hipGraphMemsetNodeGetParams(node, &retrieved_params));
  REQUIRE(initial_params.dst == retrieved_params.dst);
  REQUIRE(initial_params.elementSize == retrieved_params.elementSize);
  REQUIRE(initial_params.width == retrieved_params.width);
  REQUIRE(initial_params.height == retrieved_params.height);
  REQUIRE(initial_params.pitch == retrieved_params.pitch);
  REQUIRE(initial_params.value == retrieved_params.value);

  HIP_CHECK(hipGraphLaunch(graph_exec, hipStreamPerThread));
  HIP_CHECK(hipStreamSynchronize(hipStreamPerThread));

  HIP_CHECK(hipGraphExecDestroy(graph_exec));
  HIP_CHECK(hipGraphDestroy(graph));

  LinearAllocGuard<TestType> buffer(LinearAllocs::hipHostMalloc, width * sizeof(TestType));
  HIP_CHECK(hipMemcpy2D(buffer.ptr(), width * sizeof(TestType), alloc.ptr(), alloc.pitch(),
                        width * sizeof(TestType), 1, hipMemcpyDeviceToHost));
  ArrayFindIfNot(buffer.ptr(), set_value, width);
}

/**
 * Test Description
 * ------------------------
 *    - Verify API behaviour with invalid arguments:
 *        -# pGraphExec is nullptr
 *        -# node is nullptr
 *        -# pNodeParams is nullptr
 *        -# pNodeParams::dst is nullptr
 *        -# pNodeParams::elementSize is different from 1, 2, and 4
 *        -# pNodeParams::width is zero
 *        -# pNodeParams::width is larger than the allocated memory region
 *        -# pNodeParams::height is zero
 *        -# pNodeParams::pitch is less than width when height is more than 1
 *        -# pNodeParams::pitch * pMemsetParams::height is larger than the allocated memory region
 *        -# pNodeParams::dst holds a pointer to memory allocated on a device different from the one
 * the original dst was allocated on
 * Test source
 * ------------------------
 *    - unit/graph/hipGraphExecMemsetNodeSetParams.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
TEST_CASE("Unit_hipGraphExecMemsetNodeSetParams_Negative_Parameters") {
  // FIXME: this test tests 1D/2D/3D stuff in one single go, need to decouple it so that it can run
  // on devices with no image support
  CHECK_IMAGE_SUPPORT

  using namespace std::placeholders;

  hipGraph_t graph = nullptr;
  HIP_CHECK(hipGraphCreate(&graph, 0));

  LinearAllocGuard<int> alloc(LinearAllocs::hipMalloc, 4 * sizeof(int));
  hipMemsetParams params = {};
  params.dst = alloc.ptr();
  params.elementSize = sizeof(*alloc.ptr());
  params.width = 1;
  params.height = 1;
  params.value = 42;

  hipGraphNode_t node = nullptr;
  HIP_CHECK(hipGraphAddMemsetNode(&node, graph, nullptr, 0, &params))

  hipGraphExec_t graph_exec = nullptr;
  HIP_CHECK(hipGraphInstantiate(&graph_exec, graph, nullptr, nullptr, 0));

  SECTION("pGraphExec == nullptr") {
    HIP_CHECK_ERROR(hipGraphExecMemsetNodeSetParams(nullptr, node, &params), hipErrorInvalidValue);
  }

  SECTION("node == nullptr") {
    HIP_CHECK_ERROR(hipGraphExecMemsetNodeSetParams(graph_exec, nullptr, &params),
                    hipErrorInvalidValue);
  }

  MemsetCommonNegative(std::bind(hipGraphExecMemsetNodeSetParams, graph_exec, node, _1), params);

  SECTION("Changing dst allocation device") {
    if (HipTest::getDeviceCount() < 2) {
      HipTest::HIP_SKIP_TEST("Test requires two connected GPUs");
      return;
    }
    HIP_CHECK(hipSetDevice(1));
    LinearAllocGuard<int> new_alloc(LinearAllocs::hipMalloc, 4 * sizeof(int));
    params.dst = new_alloc.ptr();
    HIP_CHECK_ERROR(hipGraphExecMemsetNodeSetParams(graph_exec, node, &params),
                    hipErrorInvalidValue);
  }

  HIP_CHECK(hipGraphExecDestroy(graph_exec));
  HIP_CHECK(hipGraphDestroy(graph));
}

/**
 * Test Description
 * ------------------------
 *    - Verify that a 2D node cannot be updated
 * Test source
 * ------------------------
 *    - unit/graph/hipGraphExecMemsetNodeSetParams.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
TEST_CASE("Unit_hipGraphExecMemsetNodeSetParams_Negative_Updating_Non1D_Node") {
  CHECK_IMAGE_SUPPORT

  hipGraph_t graph = nullptr;
  HIP_CHECK(hipGraphCreate(&graph, 0));

  LinearAllocGuard2D<int> alloc(2, 2);
  hipMemsetParams params = {};
  params.dst = alloc.ptr();
  params.elementSize = sizeof(*alloc.ptr());
  params.width = 1;
  params.height = 2;
  params.pitch = alloc.pitch();
  params.value = 42;

  hipGraphNode_t node = nullptr;
  HIP_CHECK(hipGraphAddMemsetNode(&node, graph, nullptr, 0, &params))

  hipGraphExec_t graph_exec = nullptr;
  HIP_CHECK(hipGraphInstantiate(&graph_exec, graph, nullptr, nullptr, 0));

  params.width = 2;
  HIP_CHECK_ERROR(hipGraphExecMemsetNodeSetParams(graph_exec, node, &params), hipErrorInvalidValue);

  HIP_CHECK(hipGraphExecDestroy(graph_exec));
  HIP_CHECK(hipGraphDestroy(graph));
}
