use crate::object::*;
use crate::pyport::Py_ssize_t;
use std::os::raw::{c_char, c_int};
use std::ptr::addr_of_mut;

#[cfg(not(any(PyPy, GraalPy, Py_LIMITED_API)))]
#[repr(C)]
#[derive(Copy, Clone)]
pub struct PyByteArrayObject {
    pub ob_base: PyVarObject,
    pub ob_alloc: Py_ssize_t,
    pub ob_bytes: *mut c_char,
    pub ob_start: *mut c_char,
    #[cfg(Py_3_9)]
    pub ob_exports: Py_ssize_t,
    #[cfg(not(Py_3_9))]
    pub ob_exports: c_int,
}

#[cfg(any(PyPy, GraalPy, Py_LIMITED_API))]
opaque_struct!(PyByteArrayObject);

#[cfg_attr(windows, link(name = "pythonXY"))]
extern "C" {
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_Type")]
    pub static mut PyByteArray_Type: PyTypeObject;

    pub static mut PyByteArrayIter_Type: PyTypeObject;
}

#[inline]
pub unsafe fn PyByteArray_Check(op: *mut PyObject) -> c_int {
    PyObject_TypeCheck(op, addr_of_mut!(PyByteArray_Type))
}

#[inline]
pub unsafe fn PyByteArray_CheckExact(op: *mut PyObject) -> c_int {
    (Py_TYPE(op) == addr_of_mut!(PyByteArray_Type)) as c_int
}

extern "C" {
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_FromObject")]
    pub fn PyByteArray_FromObject(o: *mut PyObject) -> *mut PyObject;
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_Concat")]
    pub fn PyByteArray_Concat(a: *mut PyObject, b: *mut PyObject) -> *mut PyObject;
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_FromStringAndSize")]
    pub fn PyByteArray_FromStringAndSize(string: *const c_char, len: Py_ssize_t) -> *mut PyObject;
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_Size")]
    pub fn PyByteArray_Size(bytearray: *mut PyObject) -> Py_ssize_t;
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_AsString")]
    pub fn PyByteArray_AsString(bytearray: *mut PyObject) -> *mut c_char;
    #[cfg_attr(PyPy, link_name = "PyPyByteArray_Resize")]
    pub fn PyByteArray_Resize(bytearray: *mut PyObject, len: Py_ssize_t) -> c_int;
}
