mod growth_rate_library;
mod library_settings;
mod nature_library;
mod static_data;
mod type_library;

use crate::ffi::{BorrowedPtr, OwnedPtr};
use crate::static_data::*;
use std::ffi::{c_char, CStr};
use std::ptr::drop_in_place;
use std::sync::Arc;

macro_rules! library_interface {
    ($library_type:ty, $return_type:ty) => {
        paste::paste! {
            #[no_mangle]
            extern "C" fn [< $library_type:snake _new >](capacity: usize) -> OwnedPtr<$library_type> {
                Box::into_raw(Box::new($library_type::new(capacity)))
            }

            #[no_mangle]
            unsafe extern "C" fn [< $library_type:snake _drop >](ptr: OwnedPtr<$library_type>) {
                drop_in_place(ptr);
            }

            #[no_mangle]
            unsafe extern "C" fn [< $library_type:snake _add >](ptr: OwnedPtr<$library_type>, key: BorrowedPtr<c_char>, value: OwnedPtr<$return_type>) {
                let lib = ptr.as_mut().unwrap();
                lib.add(&CStr::from_ptr(key).into(), *Box::from_raw(value));
            }

            #[no_mangle]
            unsafe extern "C" fn [< $library_type:snake _remove >](ptr: OwnedPtr<$library_type>, key: BorrowedPtr<c_char>) {
                let lib = ptr.as_mut().unwrap();
                lib.remove(&CStr::from_ptr(key).into());
            }

            #[no_mangle]
            unsafe extern "C" fn [< $library_type:snake _get >](ptr: OwnedPtr<$library_type>, key: BorrowedPtr<c_char>) -> BorrowedPtr<$return_type> {
                let lib = ptr.as_mut().unwrap();
                let v = lib.get(&CStr::from_ptr(key).into());
                if let Some(value) = v {
                    Arc::as_ptr(value)
                } else {
                    std::ptr::null()
                }
            }

            #[no_mangle]
            unsafe extern "C" fn [< $library_type:snake _get_key_by_index >](ptr: OwnedPtr<$library_type>, index: usize) -> OwnedPtr<c_char> {
                let lib = ptr.as_mut().unwrap();
                let v = lib.get_key_by_index(index);
                if let Some(value) = v {
                    std::ffi::CString::new(value.str()).unwrap().into_raw()
                } else {
                    std::ptr::null_mut()
                }
            }

            #[no_mangle]
            unsafe extern "C" fn [< $library_type:snake _len >](ptr: OwnedPtr<$library_type>) -> usize {
                let lib = ptr.as_mut().unwrap();
                lib.len()
            }
        }
    };
}

library_interface!(SpeciesLibrary, Species);
library_interface!(MoveLibrary, MoveData);
library_interface!(AbilityLibrary, Ability);
library_interface!(ItemLibrary, Item);