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use std::fmt::Write;
pub fn u8(val: &u8) -> String {
hex(&val.to_le_bytes().to_vec())
}
pub fn u16(val: &u16) -> String {
hex(&val.to_le_bytes().to_vec())
}
pub fn u32(val: &u32) -> String {
hex(&val.to_le_bytes().to_vec())
}
pub fn u64(val: &u64) -> String {
hex(&val.to_le_bytes().to_vec())
}
pub fn u128(val: &u128) -> String {
hex(&val.to_le_bytes().to_vec())
}
pub fn bytes(val: &Vec<u8>) -> String {
hex(val)
}
pub fn list(input: &Vec<String>) -> String {
let mut buffer: Vec<u8> = Vec::new();
input
.iter()
.for_each(|x| {
let str: Vec<u8> = x.to_string().into_bytes();
let str_length: usize = str.len();
let mut str_length_size_bytes: Vec<u8> = Vec::new();
let mut str_length_bytes: Vec<u8> = Vec::new();
if str_length < 256 {
str_length_size_bytes = 1_u8.to_le_bytes().to_vec();
let str_length_as_u8: u8 = str_length as u8;
str_length_bytes = str_length_as_u8.to_le_bytes().to_vec();
} else if str_length < 65536 {
str_length_size_bytes = 2_u8.to_le_bytes().to_vec();
let str_length_as_u16: u16 = str_length as u16;
str_length_bytes = str_length_as_u16.to_le_bytes().to_vec();
} else if str_length < 4294967296 {
str_length_size_bytes = 4_u8.to_le_bytes().to_vec();
let str_length_as_u32: u32 = str_length as u32;
str_length_bytes = str_length_as_u32.to_le_bytes().to_vec();
} else {
str_length_size_bytes = 8_u8.to_le_bytes().to_vec();
let str_length_as_u64: u64 = str_length as u64;
str_length_bytes = str_length_as_u64.to_le_bytes().to_vec();
}
buffer = [buffer.clone(), str_length_size_bytes, str_length_bytes, str].concat();
});
hex(&buffer)
}
fn hex(bytes: &Vec<u8>) -> String {
let mut res = String::with_capacity((bytes.len() * 2) + 2);
res.push_str("0x");
for &byte in bytes {
write!(&mut res, "{:02X}", byte).unwrap();
}
res
}
