use wasm_bindgen::prelude::*;
use lox::OPENINV_LENGTH;
use lox::proto::open_invite;
use serde_json;
use std::array::TryFromSliceError;
use std::panic;

#[wasm_bindgen]
extern {
    #[wasm_bindgen(js_namespace = console)]
    pub fn log(s: &str);
}

#[wasm_bindgen]
pub fn set_panic_hook() {
    panic::set_hook(Box::new(console_error_panic_hook::hook));
}

#[wasm_bindgen]
pub fn open_invite(invite: &[u8]) {
    log(&format!("Using invite: {:?}", invite));
    match validate(invite) {
        Ok(token) => {
            let (request, _state) = open_invite::request(&token);
            let serialized_request = serde_json::to_string(&request).unwrap();
            log(&format!("Formatted open invite request: {}", serialized_request));
        },
        Err(e) => {
            log(&format!("{:?}", e));
        },
    }
}

fn validate(invite: &[u8]) -> Result<[u8; OPENINV_LENGTH], TryFromSliceError> {
    invite.try_into()
}