// Copyright (c) TribuFu. All Rights Reserved.

use libc::c_char;
use std::ffi::{CStr, CString};

#[allow(clippy::not_unsafe_ptr_arg_deref)]
pub trait ForeignString
where
    Self: Sized,
{
    /// Convert this string to a char pt.
    fn to_char_pt(self) -> *const c_char;

    /// Parse string from char pt.
    fn from_char_pt(pt: *const c_char) -> String;
}

impl ForeignString for String {
    fn to_char_pt(self) -> *const c_char {
        CString::new(self).unwrap().into_raw()
    }

    fn from_char_pt(pt: *const c_char) -> String {
        let contents = unsafe { CStr::from_ptr(pt) };

        contents.to_str().unwrap().to_string()
    }
}

/// Convert Rust string to C string.
pub fn from_string(string: String) -> *const c_char {
    string.to_char_pt()
}

/// Convert C string to Rust string.
pub fn to_string(pt: *const c_char) -> String {
    String::from_char_pt(pt)
}