#pragma once

#include <torch/csrc/python_headers.h>
#include <torch/csrc/utils/python_arg_parser.h>

#include <ATen/core/Tensor.h>

namespace torch {
namespace utils {

at::Tensor base_tensor_ctor(PyObject* args, PyObject* kwargs);
at::Tensor legacy_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
at::Tensor legacy_tensor_new(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
at::Tensor indexing_tensor_from_data(
    c10::TensorOptions options,
    at::ScalarType scalar_type,
    c10::optional<at::Device> device,
    PyObject* data);
at::Tensor sparse_coo_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
void _validate_sparse_coo_tensor_args(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);

at::Tensor sparse_compressed_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
at::Tensor sparse_csr_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
at::Tensor sparse_csc_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
at::Tensor sparse_bsr_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
at::Tensor sparse_bsc_tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);

void _validate_sparse_compressed_tensor_args(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
void _validate_sparse_csr_tensor_args(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
void _validate_sparse_csc_tensor_args(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
void _validate_sparse_bsr_tensor_args(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
void _validate_sparse_bsc_tensor_args(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);

at::Tensor tensor_ctor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
at::Tensor as_tensor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PythonArgs& r);
at::Tensor new_tensor(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
at::Tensor new_ones(
    c10::DispatchKey dispatch_key,
    at::ScalarType scalar_type,
    PyObject* args,
    PyObject* kwargs);
at::Tensor tensor_frombuffer(
    PyObject* buffer,
    at::ScalarType dtype,
    int64_t count,
    int64_t offset,
    bool requires_grad);
at::Tensor tensor_fromDLPack(PyObject* data);
at::Tensor asarray(
    PyObject* obj,
    c10::optional<c10::ScalarType> dtype,
    c10::optional<c10::Device> device,
    c10::optional<bool> copy,
    bool requires_grad);
} // namespace utils
} // namespace torch