created rust module for reading toml config files

Yes. Rust module in a LW C project. Yes. Am I stupid? Yes. Is somebody pointing at my head with a gun and forcing me to do this? Yes. Do I hate myself? Yes. love ya

src/chat/config/Cargo.toml

@@ -0,0 +1,27 @@
+# This is part of WHY2
+# Copyright (C) 2022 Václav Šmejkal
+
+# 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, either version 3 of the License, or
+# (at your option) any later version.
+
+# 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 <https://www.gnu.org/licenses/>.
+
+[package]
+name = "why2_chat_config"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+name = "why2_chat_config"
+crate-type = ["cdylib"]
+
+[dependencies]
+toml = "0.8.8"

src/chat/config/src/lib.rs

@@ -0,0 +1,76 @@
+/*
+This is part of WHY2
+Copyright (C) 2022 Václav Šmejkal
+
+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, either version 3 of the License, or
+(at your option) any later version.
+
+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 <https://www.gnu.org/licenses/>.
+*/
+
+use std::
+{
+    fs::read_to_string,
+    os::raw::c_char,
+
+    ffi::
+    {
+        CString,
+        CStr,
+    },
+};
+
+#[no_mangle]
+pub extern "C" fn why2_config_read(path: *const c_char, key: *const c_char) -> *mut c_char
+{
+    //CONVERT C STRINGS TO
+    let path_r = unsafe { CStr::from_ptr(path).to_string_lossy().into_owned() };
+    let key_r = unsafe { CStr::from_ptr(key).to_string_lossy().into_owned() };
+
+    //GET FILE CONTENT
+    let file_raw = match read_to_string(&path_r)
+    {
+        Ok(raw) => raw,
+        Err(e) => panic!("Could not read TOML config: {}\n{}", path_r, e),
+    };
+
+    //PARSE FILE
+    let data: toml::Value = match toml::from_str(&file_raw)
+    {
+        Ok(data) => data,
+        Err(e) => panic!("Could not parse TOML config: {}\n{}", path_r, e),
+    };
+
+    //GET VALUE BY key_r
+    let mut value = match data.get(&key_r)
+    {
+        Some(value) => value.to_string(),
+        None => panic!("Key \"{}\" not found in TOML config: {}", key_r, path_r),
+    };
+
+    value = value.replace("\"", "").trim().to_string(); //REMOVE QUOTES
+
+    CString::new(value).unwrap().into_raw()
+}
+
+#[no_mangle]
+pub extern "C" fn why2_config_read_free(s: *mut c_char) //BECAUSE THIS IS RUST MODULE I HAVE TO CREATE A DEALLOCATING FUNCTION
+{
+    unsafe //DON'T TRUST THIS, I DEFINITELY KNOW WHAT I'M DOING (idk)
+    {
+        if s.is_null() //bro
+        {
+            return;
+        }
+
+        drop(CString::from_raw(s)); //DROP THE PTR
+    }
+}