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use crate::{bundle, dtntime, eid};
use core::num::ParseIntError;
use nanorand::{WyRand, RNG};
use std::time::{SystemTime, UNIX_EPOCH};
#[cfg(not(target_arch = "wasm32"))]
pub fn unix_timestamp() -> u64 {
SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("Time went backwards!!")
.as_secs()
}
#[cfg(target_arch = "wasm32")]
pub fn unix_timestamp() -> u64 {
(stdweb::web::Date::now() / 1000.0) as u64
}
#[cfg(not(target_arch = "wasm32"))]
pub fn ts_ms() -> u64 {
SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("Time went backwards!!")
.as_millis() as u64
}
#[cfg(target_arch = "wasm32")]
pub fn ts_ms() -> u64 {
(stdweb::web::Date::now()) as u64
}
pub fn hexify(buf: &[u8]) -> String {
let mut hexstr = String::new();
for &b in buf {
hexstr.push_str(&format!("{:02x?}", b));
}
hexstr
}
pub fn unhexify(s: &str) -> Result<Vec<u8>, ParseIntError> {
(0..s.len())
.step_by(2)
.map(|i| u8::from_str_radix(&s[i..i + 2], 16))
.collect()
}
pub fn ser_dump<T: serde::ser::Serialize>(input: &T, hr: &str) {
println!("Description | Value");
println!("--- | ---");
println!("human-readable | {}", hr);
let json = serde_json::to_string(input).unwrap();
println!("json | `{}`", json);
let cbor = serde_cbor::to_vec(input).unwrap();
println!(
"hex string | [`{}`](http://cbor.me/?bytes={})",
hexify(&cbor),
hexify(&cbor)
);
println!("byte array | `{:?}`\n", cbor);
}
pub fn vec_dump<T: serde::ser::Serialize>(input: &T, cbor: Vec<u8>, hr: &str) {
println!("Description | Value");
println!("--- | ---");
println!("human-readable | {}", hr);
let json = serde_json::to_string(input).unwrap();
println!("json | `{}`", json);
println!(
"hex string | [`{}`](http://cbor.me/?bytes={})",
hexify(&cbor),
hexify(&cbor)
);
println!("byte array | `{:?}`\n", cbor);
}
pub fn rnd_bundle(now: dtntime::CreationTimestamp) -> bundle::Bundle {
let mut rng = WyRand::new();
let dst_string = format!("//node{}/inbox", rng.generate_range::<u32>(1, 4));
let src_string = format!("//node{}/inbox", rng.generate_range::<u32>(1, 4));
let dst = eid::EndpointID::with_dtn(&dst_string).unwrap();
let src = eid::EndpointID::with_dtn(&src_string).unwrap();
let mut b = bundle::new_std_payload_bundle(src, dst, b"ABC".to_vec());
b.primary.creation_timestamp = now;
b
}