use crate::{bundle, dtntime, eid};
use core::num::ParseIntError;
use nanorand::{Rng, WyRand};
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 singletons = vec!["sms", "files", "123456", "incoming", "mavlink"];
let groups = vec!["~news", "~tele", "~mavlink"];
let concatenated = [&singletons[..], &groups[..]].concat();
let dst_string = format!(
"//node{}/{}",
rng.generate_range(1_u32..99),
concatenated[rng.generate_range(0_usize..concatenated.len())]
);
let src_string = format!(
"//node{}/{}",
rng.generate_range(1_u32..99),
singletons[rng.generate_range(0_usize..singletons.len())]
);
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
}