use crate::{error::Error, sys::handle::Handle};
use std::{ffi::c_void, ptr};
use windows::Win32::System::Diagnostics::Debug::{ReadProcessMemory, WriteProcessMemory};

pub fn read<T>(handle: &Handle, address: usize, value: &mut T) -> Result<(), Error> {
    unsafe {
        ReadProcessMemory(
            handle.0,
            address as *const c_void,
            (ptr::from_mut::<T>(value)).cast::<c_void>(),
            size_of::<T>(),
            None,
        )
    }
    .map_err(|why| Error::AccessMemoryError(format!("failed to read memory: {why}")))
}

pub fn write<T>(handle: &Handle, address: usize, value: &mut T) -> Result<(), Error> {
    unsafe {
        WriteProcessMemory(
            handle.0,
            address as *const c_void,
            (ptr::from_mut::<T>(value)).cast::<c_void>(),
            size_of::<T>(),
            None,
        )
    }
    .map_err(|why| Error::AccessMemoryError(format!("failed to write memory: {why}")))
}