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

/**
Test Case Scenarios of hipGraphExecHostNodeSetParams API:

Functional:
1. Creates graph, Adds HostNode, update hostNode params using hipGraphExecHostNodeSetParams 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 hipGraphExecHostNodeSetParams API and validate the result

Negative:

1) Pass hGraphExec as nullptr and verify api doesn't crash, returns error code.
2) Pass node as nullptr and verify api doesn't crash, returns error code.
3) 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 and verify api doesn't crash, returns error code.
5) Pass uninitialized graph and verify api doesn't crash, returns error code.
6) Pass nullptr to host func and verify api doesn't crash, returns error code.
*/

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

#define SIZE 1024

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

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
hipGraphExecHostNodeSetParams API
*/
HIP_TEST_CASE(Unit_hipGraphExecHostNodeSetParams_Negative) {
  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_A, memcpyD2H_AC, memcpyH2D_C;
  hipStream_t streamForGraph;
  HIP_CHECK(hipStreamCreate(&streamForGraph));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyH2D_A, graph, nullptr, 0, A_d, A_h, Nbytes,
                                    hipMemcpyHostToDevice));
  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 = {0, 0};
  hostParams.fn = callbackfunc;
  hostParams.userData = A_h;
  HIP_CHECK(hipGraphAddHostNode(&hostNode, graph, nullptr, 0, &hostParams));

  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_A, &memcpyD2H_AC, 1));
  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_C, &memcpyD2H_AC, 1));
  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyD2H_AC, &hostNode, 1));

  hipHostNodeParams sethostParams = {0, 0};
  sethostParams.fn = callbackfunc_setparams;
  sethostParams.userData = C_h;

  hipGraphNode_t empty_node;
  HIP_CHECK(hipGraphAddEmptyNode(&empty_node, graph, &hostNode, 1));

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

  SECTION("Passing nullptr to graphExec") {
    HIP_CHECK_ERROR(hipGraphExecHostNodeSetParams(nullptr, hostNode, &sethostParams),
                    hipErrorInvalidValue);
  }

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

  SECTION("Passing nullptr to graph") {
    HIP_CHECK_ERROR(hipGraphExecHostNodeSetParams(graphExec, nullptr, &sethostParams),
                    hipErrorInvalidValue);
  }

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

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

#if HT_NVIDIA  // segfaults on AMD
  SECTION("node is not a host node") {
    HIP_CHECK_ERROR(hipGraphExecHostNodeSetParams(graphExec, empty_node, &sethostParams),
                    hipErrorInvalidValue);
  }
#endif

  SECTION("node is not instantiated") {
    HIP_CHECK(hipGraphAddHostNode(&hostNode, graph, nullptr, 0, &hostParams));
    HIP_CHECK_ERROR(hipGraphExecHostNodeSetParams(graphExec, hostNode, &sethostParams),
                    hipErrorInvalidValue);
  }

  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));
}

/*
This test case verifies hipGraphExecHostNodeSetParams API in cloned graph
Creates graph, Add graph nodes and clone the graph
Add HostNode to the cloned graph,update the host params using
hipGraphExecHostNodeSetParams API and validates the result
*/
HIP_TEST_CASE(Unit_hipGraphExecHostNodeSetParams_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_A, memcpyH2D_C, memcpyD2H_AC;
  hipStream_t streamForGraph;
  HIP_CHECK(hipStreamCreate(&streamForGraph));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyH2D_A, graph, nullptr, 0, A_d, A_h, Nbytes,
                                    hipMemcpyHostToDevice));
  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));

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

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

  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_A, &memcpyD2H_AC, 1));
  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_C, &memcpyD2H_AC, 1));

  hipHostNodeParams sethostParams = {0, 0};
  sethostParams.fn = callbackfunc_setparams;
  sethostParams.userData = C_h;

  // Instantiate and launch the cloned graph
  HIP_CHECK(hipGraphInstantiate(&graphExec, clonedgraph, nullptr, nullptr, 0));
  HIP_CHECK(hipGraphExecHostNodeSetParams(graphExec, hostNode, &sethostParams));
  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 hipGraphExecHostNodeSetParams API
and validates the result
*/
HIP_TEST_CASE(Unit_hipGraphExecHostNodeSetParams_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 memcpyH2D_A, memcpyD2H_AC, memcpyH2D_C;
  hipStream_t streamForGraph;
  HIP_CHECK(hipStreamCreate(&streamForGraph));
  HIP_CHECK(hipGraphAddMemcpyNode1D(&memcpyH2D_A, graph, nullptr, 0, A_d, A_h, Nbytes,
                                    hipMemcpyHostToDevice));
  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 = {0, 0};
  hostParams.fn = callbackfunc;
  hostParams.userData = A_h;
  HIP_CHECK(hipGraphAddHostNode(&hostNode, graph, nullptr, 0, &hostParams));

  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_A, &memcpyD2H_AC, 1));
  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyH2D_C, &memcpyD2H_AC, 1));
  HIP_CHECK(hipGraphAddDependencies(graph, &memcpyD2H_AC, &hostNode, 1));

  hipHostNodeParams sethostParams = {0, 0};
  sethostParams.fn = callbackfunc_setparams;
  sethostParams.userData = C_h;

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

  HIP_CHECK(hipGraphExecHostNodeSetParams(graphExec, hostNode, &sethostParams));
  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));
}