use crate::exit::{exit, GenericError};

#[no_mangle]
unsafe extern "C" fn _start() -> ! {
    extern "C" {
        fn main(argc: isize, argv: *const *const u8) -> isize;
    }

    // TODO: grab and pass arguments to main

    let ret = main(0, core::ptr::null());

    // TODO: implement exiting properly and provide a public exit function
    let err_obj = match ret {
        0 => None,
        1 => {
            // TODO: Get errorID location and error message

            Some(GenericError {
                error_id: 123456789,
                // location: None,
                // a_lil_message_as_a_treat: "Unknown Cause",
            })
        }
        _ => panic!("Program returned an invalid isize"),
    };

    exit(err_obj);
}

#[lang = "start"]
fn lang_start<T>(main: fn() -> T, _: isize, _: *const *const u8, _: u8) -> isize {
    main();
    0
}