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// This file is part of senpy-ffi <https://github.com/senpy-club/senpy-ffi>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
//! FFI bindings for [`senpy-rs`](https://github.com/senpy-club/senpy-rs)
#![feature(trivial_bounds)]
#![deny(
warnings,
nonstandard_style,
unused,
future_incompatible,
rust_2018_idioms
)]
#![deny(clippy::all, clippy::nursery, clippy::pedantic)]
#![recursion_limit = "128"]
#![doc(
html_logo_url = "https://senpy.club/favicon.png",
html_favicon_url = "https://senpy.club/favicon.png"
)]
use std::ffi::{CStr, CString};
use libc::c_char;
/// Part of the wrapper for `senpy::random`
///
/// Stores `senpy::random`'s data
#[repr(C)]
#[derive(Default)]
pub struct Random {
language: String,
image: String,
}
impl Random {
/// Part of the wrapper for `senpy::random`
///
/// Initializes a new `Random`
#[must_use]
pub fn new() -> Self { Self::default() }
/// Part of the wrapper for `senpy::random`
///
/// Populates a `Random` from a `senpy::random` call
pub fn populate(&mut self) {
if let Ok(image) = senpy::random() {
self.language = image.language;
self.image = image.image;
} else {
self.language = "".to_string();
self.image = "".to_string();
}
}
/// Part of the wrapper for `senpy::random`
///
/// Frees a `Random`
#[must_use]
pub fn get(&self, key: &str) -> String {
match key {
"language" => self.language.clone(),
"image" => self.image.clone(),
_ => "".to_string(),
}
}
}
/// Returns an array where the first element is the size of the array and the
/// remaining elements are the images. Returns `-1` if the request failed for
/// any reason.
///
/// # Safety
/// This is an unsafe FFI binding to `senpy::language`.
///
/// # Panics
/// if a `String` cannot be converted into a `CString`
#[no_mangle]
pub unsafe extern "C" fn language(language: *const c_char) -> *mut *mut c_char {
match senpy::language(CStr::from_ptr(language).to_str().unwrap()) {
Ok(images) => {
let mut images_c =
vec![CString::new(images.len().to_string()).unwrap().into_raw()];
for image in images {
images_c.push(CString::new(image).unwrap().into_raw());
}
images_c.as_mut_ptr()
}
Err(_) => vec![CString::new("-1").unwrap().into_raw()].as_mut_ptr(),
}
}
/// `senpy::languages` wrapper
///
/// Returns an array where the first element is the size of the array and the
/// remaining elements are the languages. Returns `-1` if the request failed for
/// any reason.
///
/// # Panics
/// if a `String` cannot be converted into a `CString`
#[no_mangle]
pub extern "C" fn languages() -> *mut *mut c_char {
match senpy::languages() {
Ok(languages) => {
let mut languages_c = vec![CString::new(languages.len().to_string())
.unwrap()
.into_raw()];
for language in languages {
languages_c.push(CString::new(language).unwrap().into_raw());
}
languages_c.as_mut_ptr()
}
Err(_) => vec![CString::new("-1").unwrap().into_raw()].as_mut_ptr(),
}
}
/// Part of the wrapper for `senpy::random`
///
/// Initializes a new `Random`
#[no_mangle]
pub extern "C" fn random_new() -> *mut Random {
Box::into_raw(Box::new(Random::new()))
}
/// Part of the wrapper for `senpy::random`
///
/// Populates a `Random` from a `senpy::random` call
///
/// # Safety
/// This part of an unsafe FFI binding to `senpy::random`.
#[no_mangle]
pub unsafe extern "C" fn random_populate(random: *mut Random) {
(&mut *random).populate();
}
/// Part of the wrapper for `senpy::random`
///
/// Gets a member from a `Random`, valid members are `language` and `image`.
///
/// # Safety
/// This part of an unsafe FFI binding to `senpy::random`.
///
/// # Panics
/// if the `key` cannot be wrapped as a safe `CStr`
#[no_mangle]
pub unsafe extern "C" fn random_get(
random: *const Random,
key: *const c_char,
) -> *mut c_char {
CString::new((&*random).get(CStr::from_ptr(key).to_str().unwrap()))
.unwrap()
.into_raw()
}
/// Part of the wrapper for `senpy::random`
///
/// Frees a `Random`
///
/// # Safety
/// This part of an unsafe FFI binding to `senpy::random`.
#[no_mangle]
pub unsafe extern "C" fn random_free(random: *mut Random) {
if random.is_null() {
return;
}
Box::from_raw(random);
}
/// `senpy::status` wrapper
///
/// Returns `1` if up, returns `0` if down, and returns `-1` if the request
/// failed for any reason.
#[no_mangle]
pub extern "C" fn status() -> i32 {
match senpy::status() {
Ok(status) =>
if status {
1
} else {
0
},
Err(_) => -1,
}
}
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