/*
 * Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
 *
 * SPDX-License-Identifier: MIT
 */

/**
Test Case Scenarios of hipGraphHostNodeSetParams API:

Functional:
1. Creates graph, Adds HostNode, update hostNode params using hipGraphHostNodeSetParams API
   and validates the result
2. Create graph, Add Graph nodes and clones the graph. Add Host node to the cloned graph, update
   hostNode params using hipGraphHostNodeSetParams API and validate the result

Negative:

1) Pass pGraphNode as nullptr and verify api doesn’t crash, returns error code.
2) Pass pNodeParams as nullptr and verify api doesn’t crash, returns error code.
3) Pass hipHostNodeParams::hipHostFn_t as nullptr and verify api doesn't crash, returns error code.
4) Pass uninitialized host params
*/

#include <hip_test_checkers.hh>
#include <hip_test_common.hh>

#define SIZE 1024

static void callbackfunc(void* A_h) {
  int* A = reinterpret_cast<int*>(A_h);
  for (int i = 0; i < SIZE; i++) {
    A[i] = i;
  }
}

static void callbackfunc_setparams(void* B_h) {
  int* B = reinterpret_cast<int*>(B_h);
  for (int i = 0; i < SIZE; i++) {
    B[i] = i * i;
  }
}

/*
This test case verifies the negative scenarios of
hipGraphHostNodeSetParams API
*/
HIP_TEST_CASE(Unit_hipGraphHostNodeSetParams_Negative) {
  constexpr size_t N = 1024;
  hipGraph_t graph;
  int *A_d{nullptr}, *C_d{nullptr};
  int *A_h{nullptr}, *C_h{nullptr};
  HipTest::initArrays<int>(&A_d, nullptr, &C_d, &A_h, nullptr, &C_h, N, false);

  HIP_CHECK(hipGraphCreate(&graph, 0));

  hipGraphNode_t hostNode;
  hipHostNodeParams hostParams;
  hostParams.fn = callbackfunc;
  hostParams.userData = A_h;
  HIP_CHECK(hipGraphAddHostNode(&hostNode, graph, nullptr, 0, &hostParams));

  SECTION("Passing nullptr to graph node") {
    HIP_CHECK_ERROR(hipGraphHostNodeSetParams(nullptr, &hostParams), hipErrorInvalidValue);
  }

  SECTION("Passing nullptr to hostParams") {
    HIP_CHECK_ERROR(hipGraphHostNodeSetParams(hostNode, nullptr), hipErrorInvalidValue);
  }

  SECTION("Passing nullptr to host func") {
    hostParams.fn = nullptr;
    HIP_CHECK_ERROR(hipGraphHostNodeSetParams(hostNode, &hostParams), hipErrorInvalidValue);
  }

  SECTION("Passing uninitialized hostParams") {
    hipHostNodeParams unintParams = {0, 0};
    HIP_CHECK_ERROR(hipGraphHostNodeSetParams(hostNode, &unintParams), hipErrorInvalidValue);
  }

#if HT_NVIDIA  // segfaults on AMD
  SECTION("node is not a host node") {
    hipGraphNode_t empty_node;
    HIP_CHECK(hipGraphAddEmptyNode(&empty_node, graph, nullptr, 0));
    HIP_CHECK_ERROR(hipGraphHostNodeSetParams(empty_node, &hostParams), hipErrorInvalidValue);
  }
#endif

  HipTest::freeArrays<int>(A_d, nullptr, C_d, A_h, nullptr, C_h, false);
  HIP_CHECK(hipGraphDestroy(graph));
}

/*
This test case verifies hipGraphHostNodeSetParams API in cloned graph
Creates graph, Add graph nodes and clone the graph
Add HostNode to the cloned graph,update the host params using
hipGraphHostNodeSetParams API and validates the result
*/
HIP_TEST_CASE(Unit_hipGraphHostNodeSetParams_ClonedGraphWithHostNode) {
  constexpr size_t N = 1024;
  constexpr size_t Nbytes = N * sizeof(int);
  hipGraph_t graph;
  hipGraphExec_t graphExec;
  int *A_d{nullptr}, *C_d{nullptr};
  int *A_h{nullptr}, *C_h{nullptr};
  HipTest::initArrays<int>(&A_d, nullptr, &C_d, &A_h, nullptr, &C_h, N, false);

  HIP_CHECK(hipGraphCreate(&graph, 0));
  hipGraphNode_t memcpyH2D_C, memcpyD2H_AC;
  hipStream_t streamForGraph;
  HIP_CHECK(hipStreamCreate(&streamForGraph));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyH2D_C, graph, nullptr, 0, C_d, C_h, Nbytes,
                                    hipMemcpyHostToDevice));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyD2H_AC, graph, nullptr, 0, A_h, C_d, Nbytes,
                                    hipMemcpyDeviceToHost));

  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_C, &memcpyD2H_AC, 1));

  hipGraph_t clonedgraph;
  HIP_CHECK(hipGraphClone(&clonedgraph, graph));

  hipGraphNode_t hostNode;
  hipHostNodeParams hostParams;
  hostParams.fn = callbackfunc;
  hostParams.userData = A_h;
  HIP_CHECK(hipGraphAddHostNode(&hostNode, clonedgraph, nullptr, 0, &hostParams));

  hipHostNodeParams sethostParams;
  sethostParams.fn = callbackfunc_setparams;
  sethostParams.userData = C_h;
  HIP_CHECK(hipGraphHostNodeSetParams(hostNode, &sethostParams));

  // Instantiate and launch the cloned graph
  HIP_CHECK(hipGraphInstantiate(&graphExec, clonedgraph, nullptr, nullptr, 0));
  HIP_CHECK(hipGraphLaunch(graphExec, streamForGraph));
  HIP_CHECK(hipStreamSynchronize(streamForGraph));

  // Verify execution result
  for (size_t i = 0; i < N; i++) {
    if (C_h[i] != static_cast<int>(i * i)) {
      INFO("Validation failed i " << i << "C_h[i] " << C_h[i]);
      REQUIRE(false);
    }
  }

  HipTest::freeArrays<int>(A_d, nullptr, C_d, A_h, nullptr, C_h, false);
  HIP_CHECK(hipGraphExecDestroy(graphExec));
  HIP_CHECK(hipGraphDestroy(graph));
  HIP_CHECK(hipGraphDestroy(clonedgraph));
  HIP_CHECK(hipStreamDestroy(streamForGraph));
}

/*
This test case verifies the following scenario
Create graph, Adds host node to the graph,
updates the host params using hipGraphHostNodeSetParams API
and validates the result
*/
HIP_TEST_CASE(Unit_hipGraphHostNodeSetParams_BasicFunc) {
  constexpr size_t N = 1024;
  constexpr size_t Nbytes = N * sizeof(int);
  hipGraph_t graph;
  hipGraphExec_t graphExec;
  int *A_d{nullptr}, *C_d{nullptr};
  int *A_h{nullptr}, *C_h{nullptr};
  HipTest::initArrays<int>(&A_d, nullptr, &C_d, &A_h, nullptr, &C_h, N, false);

  HIP_CHECK(hipGraphCreate(&graph, 0));
  hipGraphNode_t memcpyD2H_AC, memcpyH2D_C;
  hipStream_t streamForGraph;
  HIP_CHECK(hipStreamCreate(&streamForGraph));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyH2D_C, graph, nullptr, 0, C_d, C_h, Nbytes,
                                    hipMemcpyHostToDevice));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyD2H_AC, graph, nullptr, 0, A_h, C_d, Nbytes,
                                    hipMemcpyDeviceToHost));
  hipGraphNode_t hostNode;
  hipHostNodeParams hostParams;
  hostParams.fn = callbackfunc;
  hostParams.userData = A_h;
  HIP_CHECK(hipGraphAddHostNode(&hostNode, graph, nullptr, 0, &hostParams));

  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_C, &memcpyD2H_AC, 1));
  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyD2H_AC, &hostNode, 1));

  hipHostNodeParams sethostParams;
  sethostParams.fn = callbackfunc_setparams;
  sethostParams.userData = C_h;
  HIP_CHECK(hipGraphHostNodeSetParams(hostNode, &sethostParams));

  // Instantiate and launch the graph
  HIP_CHECK(hipGraphInstantiate(&graphExec, graph, nullptr, nullptr, 0));
  HIP_CHECK(hipGraphLaunch(graphExec, streamForGraph));
  HIP_CHECK(hipStreamSynchronize(streamForGraph));

  // Verify execution result
  for (size_t i = 0; i < N; i++) {
    if (C_h[i] != static_cast<int>(i * i)) {
      INFO("Validation failed i " << i << "C_h[i] " << C_h[i]);
      REQUIRE(false);
    }
  }

  HipTest::freeArrays<int>(A_d, nullptr, C_d, A_h, nullptr, C_h, false);
  HIP_CHECK(hipGraphExecDestroy(graphExec));
  HIP_CHECK(hipGraphDestroy(graph));
  HIP_CHECK(hipStreamDestroy(streamForGraph));
}