use crate::av::as_ptr::AsMutVoidPtr;
use crate::av::dictionary::Dictionary;
use ffmpeg_sys_next::{av_opt_find, av_opt_get_int, av_opt_set_dict, av_opt_set_int};
use std::ffi::CString;
use std::ptr::null;

pub trait Options: AsMutVoidPtr {
    fn set_options(&mut self, mut options: Dictionary) {
        options.disown();
        unsafe {
            av_opt_set_dict(self.as_mut_void_ptr(), &mut options.as_mut_ptr());
        }
    }

    fn set_flag(&self, option: &str, flag: &str) -> bool {
        let option_c = CString::new(option).unwrap();
        let flag_c = CString::new(flag).unwrap();
        unsafe {
            let option = av_opt_find(self.as_mut_void_ptr(), option_c.as_ptr(), null(), 0, 0);
            let flag = av_opt_find(self.as_mut_void_ptr(), flag_c.as_ptr(), null(), 0, 0);

            if flag.is_null() || option.is_null() {
                return false;
            }

            let mut val: i64 = 0;
            av_opt_get_int(self.as_mut_void_ptr(), option_c.as_ptr(), 0, &mut val);
            av_opt_set_int(
                self.as_mut_void_ptr(),
                option_c.as_ptr(),
                val | (*flag).default_val.i64,
                0,
            );
        }

        true
    }
}