#include <atomic>
#include <cstdlib>
#include <cstdio>

#include "rocprofiler.h"

#include "core/session/tracer/tracer.h"
#include "src/core/hsa/hsa_support.h"
#include "src/api/rocprofiler_singleton.h"
#include "src/utils/helper.h"
#include "src/core/isa_capture/code_object_track.hpp"

// TODO(aelwazir): change that to adapt with our own Exception
// What about outside exceptions and callbacks exceptions!!
#define API_METHOD_PREFIX try {
#define API_METHOD_SUFFIX                                                                          \
  }                                                                                                \
  catch (rocprofiler::Exception & e) {                                                             \
    std::cerr << __FUNCTION__ << "(), " << e.what();                                               \
    return e.status();                                                                             \
  }                                                                                                \
  catch (...) {                                                                                    \
    std::cerr << "Fatal error:"                                                                    \
              << "(" << __FUNCTION__ << ") " << __FILE__ << ":" << __LINE__ << std::endl;          \
    abort();                                                                                       \
  }                                                                                                \
  return ROCPROFILER_STATUS_SUCCESS;

#define API_INIT_CHECKER                                                                           \
  API_METHOD_PREFIX                                                                                \
  if (!api_started.load(std::memory_order_relaxed))                                                \
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_NOT_INITIALIZED);

std::atomic<bool> api_started{false};

// Returns library version
ROCPROFILER_API uint32_t rocprofiler_version_major() { return ROCPROFILER_VERSION_MAJOR; }
ROCPROFILER_API uint32_t rocprofiler_version_minor() { return ROCPROFILER_VERSION_MINOR; }

// Return the error string representing the status
ROCPROFILER_API const char* rocprofiler_error_str(rocprofiler_status_t status) {
  switch (status) {
    case ROCPROFILER_STATUS_ERROR_ALREADY_INITIALIZED:
      return "ROCProfiler is already initialized\n";
    case ROCPROFILER_STATUS_ERROR_NOT_INITIALIZED:
      return "ROCProfiler is not initialized or already destroyed\n";
    case ROCPROFILER_STATUS_ERROR_SESSION_MISSING_BUFFER:
      return "Missing Buffer for a session\n";
    case ROCPROFILER_STATUS_ERROR_TIMESTAMP_NOT_APPLICABLE:
      return "Timestamps can't be collected\n";
    case ROCPROFILER_STATUS_ERROR_AGENT_NOT_FOUND:
      return "Agent is not found with given identifier\n";
    case ROCPROFILER_STATUS_ERROR_AGENT_INFORMATION_MISSING:
      return "Agent information is missing for the given identifier\n";
    case ROCPROFILER_STATUS_ERROR_QUEUE_NOT_FOUND:
      return "Queue is not found for the given identifier\n";
    case ROCPROFILER_STATUS_ERROR_QUEUE_INFORMATION_MISSING:
      return "The requested information about the queue is not found\n";
    case ROCPROFILER_STATUS_ERROR_KERNEL_NOT_FOUND:
      return "Kernel is not found with given identifier\n";
    case ROCPROFILER_STATUS_ERROR_KERNEL_INFORMATION_MISSING:
      return "The requested information about the kernel is not found\n";
    case ROCPROFILER_STATUS_ERROR_COUNTER_NOT_FOUND:
      return "Counter is not found with the given identifier\n";
    case ROCPROFILER_STATUS_ERROR_COUNTER_INFORMATION_MISSING:
      return "The requested Counter information for the given kernel is "
             "missing\n";
    case ROCPROFILER_STATUS_ERROR_TRACER_API_DATA_NOT_FOUND:
      return "The requested Tracing API Data for the given data identifier is "
             "missing\n";
    case ROCPROFILER_STATUS_ERROR_TRACER_API_DATA_INFORMATION_MISSING:
      return "The requested information for the tracing API Data is missing\n";
    case ROCPROFILER_STATUS_ERROR_INCORRECT_DOMAIN:
      return "The given Domain is incorrect\n";
    case ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND:
      return "The requested Session given the session identifier is not "
             "found\n";
    case ROCPROFILER_STATUS_ERROR_CORRUPTED_SESSION_BUFFER:
      return "The requested Session Buffer given the session identifier is "
             "corrupted or deleted\n";
    case ROCPROFILER_STATUS_ERROR_RECORD_CORRUPTED:
      return "The requested record given the record identifier is corrupted "
             "or deleted\n";
    case ROCPROFILER_STATUS_ERROR_INCORRECT_REPLAY_MODE:
      return "Incorrect Replay mode\n";
    case ROCPROFILER_STATUS_ERROR_SESSION_MISSING_FILTER:
      return "Missing Filter for a session\n";
    case ROCPROFILER_STATUS_ERROR_INCORRECT_SIZE:
      return "The size given for the buffer is not applicable\n";
    case ROCPROFILER_STATUS_ERROR_INCORRECT_FLUSH_INTERVAL:
      return "Incorrect Flush interval\n";
    case ROCPROFILER_STATUS_ERROR_SESSION_FILTER_DATA_MISMATCH:
      return "The session filter can't accept the given data\n";
    case ROCPROFILER_STATUS_ERROR_FILTER_DATA_CORRUPTED:
      return "The given filter data is corrupted\n";
    case ROCPROFILER_STATUS_ERROR_CORRUPTED_LABEL_DATA:
      return "The given label is corrupted\n";
    case ROCPROFILER_STATUS_ERROR_RANGE_STACK_IS_EMPTY:
      return "There is no label in the labels stack to be popped\n";
    case ROCPROFILER_STATUS_ERROR_PASS_NOT_STARTED:
      return "There is no pass that started\n";
    case ROCPROFILER_STATUS_ERROR_HAS_ACTIVE_SESSION:
      return "There is already Active session, Can't activate two session at "
             "the same time\n";
    case ROCPROFILER_STATUS_ERROR_SESSION_NOT_ACTIVE:
      return "Can't terminate a non active session\n";
    case ROCPROFILER_STATUS_ERROR_FILTER_NOT_FOUND:
      return "The required filter is not found for the given session\n";
    case ROCPROFILER_STATUS_ERROR_BUFFER_NOT_FOUND:
      return "The required buffer is not found for the given session\n";
    case ROCPROFILER_STATUS_ERROR_FILTER_NOT_SUPPORTED:
      return "The required filter is not supported\n";
    case ROCPROFILER_STATUS_ERROR_INVALID_ARGUMENTS:
      return "Invalid Arguments were given to the function\n";
    case ROCPROFILER_STATUS_ERROR_INVALID_OPERATION_ID:
      return "The given operation id is not valid\n";
    case ROCPROFILER_STATUS_ERROR_INVALID_DOMAIN_ID:
      return "The given domain id is not valid\n";
    case ROCPROFILER_STATUS_ERROR_NOT_IMPLEMENTED:
      return "The requested function is not implemented\n";
    case ROCPROFILER_STATUS_ERROR_MISMATCHED_EXTERNAL_CORRELATION_ID:
      return "The given external correlation id is not matched with the "
             "internal correlation id\n";
    default:
      return "Unkown error has occurred\n";
  }
  return "\n";
}

// Initialize the API
ROCPROFILER_API rocprofiler_status_t rocprofiler_initialize() {
  API_METHOD_PREFIX
  if (api_started.load(std::memory_order_relaxed))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_ALREADY_INITIALIZED);
  rocprofiler::ROCProfiler_Singleton::GetInstance();
  api_started.exchange(true, std::memory_order_release);
  API_METHOD_SUFFIX
}

// Finalize the API
ROCPROFILER_API rocprofiler_status_t rocprofiler_finalize() {
  API_INIT_CHECKER
  api_started.exchange(false, std::memory_order_release);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_get_timestamp(rocprofiler_timestamp_t* timestamp) {
  API_INIT_CHECKER
  *timestamp =  rocprofiler::ROCProfiler_Singleton::GetInstance().timestamp_ns();
  if (timestamp->value <= 0)
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_TIMESTAMP_NOT_APPLICABLE);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_iterate_counters(rocprofiler_counters_info_callback_t counters_info_callback) {
  API_INIT_CHECKER
  return rocprofiler::IterateCounters(counters_info_callback);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_agent_info_size(
    rocprofiler_agent_info_kind_t kind, rocprofiler_agent_id_t agent_id, size_t* data_size) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindAgent(agent_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_AGENT_NOT_FOUND);
  *data_size = rocprofiler_singleton.GetAgentInfoSize(kind, agent_id);
  if (*data_size <= 0) throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_AGENT_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_agent_info(
    rocprofiler_agent_info_kind_t kind, rocprofiler_agent_id_t agent_id, const char** data) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindAgent(agent_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_AGENT_NOT_FOUND);
  if (!(*data = rocprofiler_singleton.GetAgentInfo(kind, agent_id)))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_AGENT_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_queue_info_size(
    rocprofiler_queue_info_kind_t kind, rocprofiler_queue_id_t queue_id, size_t* data_size) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindQueue(queue_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_QUEUE_NOT_FOUND);
  *data_size = rocprofiler_singleton.GetQueueInfoSize(kind, queue_id);
  if (*data_size <= 0) throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_QUEUE_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_queue_info(
    rocprofiler_queue_info_kind_t kind, rocprofiler_queue_id_t queue_id, const char** data) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindQueue(queue_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_QUEUE_NOT_FOUND);
  if (!(*data = rocprofiler_singleton.GetQueueInfo(kind, queue_id)))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_QUEUE_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_kernel_info_size(
    rocprofiler_kernel_info_kind_t kind, rocprofiler_kernel_id_t kernel_id, size_t* data_size) {
  API_INIT_CHECKER
  // if (!rocprofiler::rocmtool::GetInstance().FindKernel(kernel_id))
  //   throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_KERNEL_NOT_FOUND);
  *data_size =  rocprofiler::ROCProfiler_Singleton::GetInstance().GetKernelInfoSize(kind, kernel_id);
  if (*data_size <= 0)
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_KERNEL_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_kernel_info(
    rocprofiler_kernel_info_kind_t kind, rocprofiler_kernel_id_t kernel_id, const char** data) {
  API_INIT_CHECKER
  // if (!rocprofiler::rocmtool::GetInstance().FindKernel(kernel_id))
  //   throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_KERNEL_NOT_FOUND);
  if (!(*data = rocprofiler::ROCProfiler_Singleton::GetInstance().GetKernelInfo(kind, kernel_id)))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_KERNEL_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_counter_info_size(
    rocprofiler_session_id_t session_id, rocprofiler_counter_info_kind_t kind,
    rocprofiler_counter_id_t counter_id, size_t* data_size) {
  API_INIT_CHECKER
   rocprofiler::ROCProfiler_Singleton&  rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.GetSession(session_id)->GetProfiler()->FindCounter(counter_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_COUNTER_NOT_FOUND);
  *data_size = rocprofiler_singleton
                    .GetSession(session_id)
                    ->GetProfiler()
                   ->GetCounterInfoSize(kind, counter_id);
  if (*data_size <= 0)
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_COUNTER_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_counter_info(
    rocprofiler_session_id_t session_id, rocprofiler_counter_info_kind_t kind,
    rocprofiler_counter_id_t counter_id, const char** data) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.GetSession(session_id)->GetProfiler()->FindCounter(counter_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_COUNTER_NOT_FOUND);
  if (!(*data = rocprofiler_singleton
                    .GetSession(session_id)
                    ->GetProfiler()
                    ->GetCounterInfo(kind, counter_id)))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_COUNTER_INFORMATION_MISSING);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_query_tracer_operation_name(
    rocprofiler_tracer_activity_domain_t domain, rocprofiler_tracer_operation_id_t operation_id,
    const char** name) {
  *name = rocprofiler::tracer::GetApiCallOperationName(domain, operation_id);
  return ROCPROFILER_STATUS_SUCCESS;
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_query_tracer_operation_id(rocprofiler_tracer_activity_domain_t domain, const char* name,
                                      rocprofiler_tracer_operation_id_t* operation_id) {
  API_INIT_CHECKER
  if (operation_id == nullptr)
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_INVALID_ARGUMENTS);
  if (!rocprofiler::tracer::GetApiCallOperationID(domain, name, operation_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_INVALID_OPERATION_ID);
  return ROCPROFILER_STATUS_SUCCESS;
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_flush_data(rocprofiler_session_id_t session_id,
                                                            rocprofiler_buffer_id_t buffer_id) {
  API_INIT_CHECKER
   rocprofiler::ROCProfiler_Singleton&  rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindBuffer(buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_BUFFER_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->GetBuffer(buffer_id)->Flush())
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_CORRUPTED_SESSION_BUFFER);
  API_METHOD_SUFFIX
}

#include "src/core/memory/generic_buffer.h"

ROCPROFILER_API rocprofiler_status_t rocprofiler_next_record(
    const rocprofiler_record_header_t* record, const rocprofiler_record_header_t** next,
    rocprofiler_session_id_t session_id, rocprofiler_buffer_id_t buffer_id) {
  API_INIT_CHECKER
   rocprofiler::ROCProfiler_Singleton&  rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindBuffer(buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_BUFFER_NOT_FOUND);
  if (!Memory::GetNextRecord(record, next))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_RECORD_CORRUPTED);
  API_METHOD_SUFFIX
}

// API to create a session with a given profiling mode and input data
ROCPROFILER_API rocprofiler_status_t rocprofiler_create_session(
    rocprofiler_replay_mode_t replay_mode, rocprofiler_session_id_t* session_id) {
  API_INIT_CHECKER
  *session_id =  rocprofiler::ROCProfiler_Singleton::GetInstance().CreateSession(replay_mode);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_create_filter(
    rocprofiler_session_id_t session_id, rocprofiler_filter_kind_t filter_kind,
    rocprofiler_filter_data_t filter_data, uint64_t data_count, rocprofiler_filter_id_t* filter_id,
    rocprofiler_filter_property_t property) {
  API_INIT_CHECKER
  // TODO(aelwazir): CheckFilterData to be implemented
  // int error_code =
  // rocprofiler::ROCProfiler_Singleton::GetInstance().CheckFilterData(filter_kind,
  //     filter_data);
  // if (error_code == -1) throw
  // rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_FILTER_DATA_CORRUPTED); if (error_code == 0)
  //   throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_FILTER_DATA_MISMATCH);
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  *filter_id = rocprofiler_singleton
                   .GetSession(session_id)
                   ->CreateFilter(filter_kind, filter_data, data_count, property);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_destroy_filter(rocprofiler_session_id_t session_id,
                                                                rocprofiler_filter_id_t filter_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindFilter(filter_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_FILTER_NOT_FOUND);
  rocprofiler_singleton.GetSession(session_id)->DestroyFilter(filter_id);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_create_buffer(
    rocprofiler_session_id_t session_id, rocprofiler_buffer_callback_t buffer_callback,
    size_t buffer_size, rocprofiler_buffer_id_t* buffer_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  *buffer_id = rocprofiler_singleton
                   .GetSession(session_id)
                   ->CreateBuffer(buffer_callback, buffer_size);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_set_buffer_properties(
    rocprofiler_session_id_t session_id, rocprofiler_buffer_id_t buffer_id,
    rocprofiler_buffer_property_t* buffer_properties, uint32_t buffer_properties_count) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindBuffer(buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_BUFFER_NOT_FOUND);
  rocprofiler_singleton
      .GetSession(session_id)
      ->GetBuffer(buffer_id)
      ->SetProperties(buffer_properties, buffer_properties_count);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_destroy_buffer(rocprofiler_session_id_t session_id,
                                                                rocprofiler_buffer_id_t buffer_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindBuffer(buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_BUFFER_NOT_FOUND);
  rocprofiler_singleton.GetSession(session_id)->DestroyBuffer(buffer_id);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_set_filter_buffer(
    rocprofiler_session_id_t session_id, rocprofiler_filter_id_t filter_id,
    rocprofiler_buffer_id_t buffer_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindBuffer(buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_BUFFER_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindFilter(filter_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_FILTER_NOT_FOUND);
  if (!rocprofiler_singleton
           .GetSession(session_id)
           ->CheckFilterBufferSize(filter_id, buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_INCORRECT_SIZE);
  rocprofiler_singleton.GetSession(session_id)->GetFilter(filter_id)->SetBufferId(buffer_id);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_set_api_trace_sync_callback(
    rocprofiler_session_id_t session_id, rocprofiler_filter_id_t filter_id,
    rocprofiler_sync_callback_t callback) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->FindFilter(filter_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_FILTER_NOT_FOUND);
  if (rocprofiler_singleton.GetSession(session_id)->GetFilter(filter_id)->GetKind() !=
      ROCPROFILER_API_TRACE)
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_FILTER_NOT_SUPPORTED);
  rocprofiler_singleton.GetSession(session_id)->GetFilter(filter_id)->SetCallback(callback);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_create_ready_session(
    rocprofiler_replay_mode_t replay_mode, rocprofiler_filter_kind_t filter_kind,
    rocprofiler_filter_data_t filter_data, uint64_t data_count, size_t buffer_size,
    rocprofiler_buffer_callback_t buffer_callback, rocprofiler_session_id_t* session_id,
    rocprofiler_filter_property_t property, rocprofiler_sync_callback_t callback) {
  API_INIT_CHECKER
  // TODO(aelwazir): CheckFilterData to be implemented
  // int error_code =
  //  rocprofiler::ROCProfiler_Singleton::GetInstance().CheckFilterData(filter_kind,
  //     filter_data);
  // if (error_code == -1) throw
  // rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_FILTER_DATA_CORRUPTED); if (error_code == 0)
  //   throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_FILTER_DATA_MISMATCH);
  rocprofiler::ROCProfiler_Singleton&  rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  *session_id = rocprofiler_singleton.CreateSession(replay_mode);
  rocprofiler_filter_id_t filter_id =
      rocprofiler_singleton
          .GetSession(*session_id)
          ->CreateFilter(filter_kind, filter_data, data_count, property);
  rocprofiler_buffer_id_t buffer_id = rocprofiler_singleton
                                        .GetSession(*session_id)
                                        ->CreateBuffer(buffer_callback, buffer_size);
  if (filter_kind == ROCPROFILER_API_TRACE)
    rocprofiler_singleton
        .GetSession(*session_id)
        ->GetFilter(filter_id)
        ->SetCallback(callback);
  if (!rocprofiler_singleton
           .GetSession(*session_id)
           ->CheckFilterBufferSize(filter_id, buffer_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_INCORRECT_SIZE);
  rocprofiler_singleton
       .GetSession(*session_id)
      ->GetFilter(filter_id)
      ->SetBufferId(buffer_id);
  API_METHOD_SUFFIX
}

// API to destroy a session by id
ROCPROFILER_API rocprofiler_status_t
rocprofiler_destroy_session(rocprofiler_session_id_t session_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  rocprofiler_singleton.DestroySession(session_id);
  API_METHOD_SUFFIX
}

// API to activate a session by id
ROCPROFILER_API rocprofiler_status_t
rocprofiler_start_session(rocprofiler_session_id_t session_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.GetSession(session_id)->HasFilter())
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_MISSING_FILTER);
  if (!rocprofiler_singleton.GetSession(session_id)->HasBuffer())
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_MISSING_BUFFER);
  if (rocprofiler_singleton.HasActiveSession())
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_HAS_ACTIVE_SESSION);
  rocprofiler_singleton.GetSession(session_id)->Start();
  rocprofiler_singleton.SetCurrentActiveSession(session_id);
  API_METHOD_SUFFIX
}

// API to deactivate a session by id
ROCPROFILER_API rocprofiler_status_t
rocprofiler_terminate_session(rocprofiler_session_id_t session_id) {
  API_INIT_CHECKER
  auto& rocprofiler_singleton = rocprofiler::ROCProfiler_Singleton::GetInstance();
  if (!rocprofiler_singleton.FindSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_FOUND);
  if (!rocprofiler_singleton.IsActiveSession(session_id))
    throw rocprofiler::Exception(ROCPROFILER_STATUS_ERROR_SESSION_NOT_ACTIVE);
  rocprofiler_singleton.GetSession(session_id)->Terminate();
  rocprofiler_singleton.SetCurrentActiveSession(rocprofiler_session_id_t{0});
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t rocprofiler_device_profiling_session_create(
    const char** counter_names, uint64_t num_counters, rocprofiler_session_id_t* session_id,
    int cpu_index, int gpu_index) {
  API_METHOD_PREFIX
  std::vector<std::string> counters(counter_names, counter_names + num_counters);
  *session_id =
      rocprofiler::ROCProfiler_Singleton::GetInstance().CreateDeviceProfilingSession(counters, cpu_index, gpu_index);
  API_METHOD_SUFFIX
}

// API to start a device profiling session
ROCPROFILER_API rocprofiler_status_t
rocprofiler_device_profiling_session_start(rocprofiler_session_id_t session_id) {
  API_METHOD_PREFIX
  rocprofiler::ROCProfiler_Singleton::GetInstance().GetDeviceProfilingSession(session_id)->StartSession();
  API_METHOD_SUFFIX
}

// API to poll a device profiling session
ROCPROFILER_API rocprofiler_status_t rocprofiler_device_profiling_session_poll(
    rocprofiler_session_id_t session_id, rocprofiler_device_profile_metric_t* data) {
  API_METHOD_PREFIX
  rocprofiler::ROCProfiler_Singleton::GetInstance().GetDeviceProfilingSession(session_id)->PollMetrics(data);
  API_METHOD_SUFFIX
}

// API to stop a device profiling session
ROCPROFILER_API rocprofiler_status_t
rocprofiler_device_profiling_session_stop(rocprofiler_session_id_t session_id) {
  API_METHOD_PREFIX
  rocprofiler::ROCProfiler_Singleton::GetInstance().GetDeviceProfilingSession(session_id)->StopSession();
  API_METHOD_SUFFIX
}

// API to destroy a device profiling session
ROCPROFILER_API rocprofiler_status_t
rocprofiler_device_profiling_session_destroy(rocprofiler_session_id_t session_id) {
  API_METHOD_PREFIX
  rocprofiler::ROCProfiler_Singleton::GetInstance().DestroyDeviceProfilingSession(session_id);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_codeobj_capture_get(rocprofiler_record_id_t id,
                                rocprofiler_codeobj_symbols_t* symbols) {
  API_METHOD_PREFIX
  try {
    *symbols = codeobj_record::get_capture(id);
  } catch(const std::out_of_range& e) {
    return ROCPROFILER_STATUS_ERROR_INVALID_ARGUMENTS;
  }
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_codeobj_capture_create(
  rocprofiler_record_id_t* id,
  rocprofiler_codeobj_capture_mode_t mode,
  uint64_t userdata
) {
  API_METHOD_PREFIX
  id->handle = rocprofiler::ROCProfiler_Singleton::GetInstance().GetUniqueRecordId();
  codeobj_record::make_capture(*id, mode, userdata);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_codeobj_capture_free(rocprofiler_record_id_t id) {
  API_METHOD_PREFIX
  codeobj_record::free_capture(id);
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_codeobj_capture_start(rocprofiler_record_id_t id) {
  API_METHOD_PREFIX
  try {
    codeobj_record::start_capture(id);
  } catch(const std::out_of_range& e) {
    return ROCPROFILER_STATUS_ERROR_INVALID_ARGUMENTS;
  }
  API_METHOD_SUFFIX
}

ROCPROFILER_API rocprofiler_status_t
rocprofiler_codeobj_capture_stop(rocprofiler_record_id_t id) {
  API_METHOD_PREFIX
  try {
    codeobj_record::stop_capture(id);
  } catch(const std::out_of_range& e) {
    return ROCPROFILER_STATUS_ERROR_INVALID_ARGUMENTS;
  }
  API_METHOD_SUFFIX
}


static bool started{false};

extern "C" {

// TODO(aelwazir): To be enabled if old API is deprecated

// The HSA_AMD_TOOL_PRIORITY variable must be a constant value type
// initialized by the loader itself, not by code during _init. 'extern const'
// seems do that although that is not a guarantee.
ROCPROFILER_EXPORT extern const uint32_t HSA_AMD_TOOL_PRIORITY = 25;

/**
 * @brief Callback function called upon loading the HSA.
 * The function updates the core api table function pointers to point to the
 * interceptor functions in this file.
 */
ROCPROFILER_EXPORT bool OnLoad(HsaApiTable* table, uint64_t runtime_version,
                               uint64_t failed_tool_count, const char* const* failed_tool_names) {
  if (started) rocprofiler::fatal("HSA Tool started already!");
  started = true;
  rocprofiler::HSASupport_Singleton::GetInstance().HSAInitialize(table);
  return true;
}

/**
 * @brief Callback function upon unloading the HSA.
 */
ROCPROFILER_EXPORT void OnUnload() {
  if (!started) rocprofiler::fatal("HSA Tool hasn't started yet!");
    rocprofiler::HSASupport_Singleton::GetInstance().HSAFinalize();
  started = false;
}

}  // extern "C"