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#![cfg_attr(not(feature = "std"), no_std)]
use core::slice::Iter;
use frame_support::codec::{Decode, Encode};
#[cfg(feature = "std")]
use serde::{Deserialize, Serialize};
use sp_runtime::RuntimeDebug;
#[derive(Encode, Decode, Clone, Copy, PartialEq, RuntimeDebug, Hash, PartialOrd, Ord)]
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[repr(u8)]
pub enum Currency {
Unknown = 0,
Usd = 1,
Eq = 2,
Eth = 3,
Btc = 4,
Eos = 5,
Dot = 6,
}
impl Currency {
pub fn iterator() -> Iter<'static, Currency> {
static CURRENCIES: [Currency; 5] = [
Currency::Eq,
Currency::Eth,
Currency::Btc,
Currency::Eos,
Currency::Dot,
];
CURRENCIES.iter()
}
pub fn iterator_with_usd() -> Iter<'static, Currency> {
static CURRENCIES: [Currency; 6] = [
Currency::Eq,
Currency::Eth,
Currency::Btc,
Currency::Usd,
Currency::Eos,
Currency::Dot,
];
CURRENCIES.iter()
}
}
impl Eq for Currency {}
impl Default for Currency {
fn default() -> Currency {
Currency::Unknown
}
}
impl Currency {
pub fn value(&self) -> u8 {
match *self {
Currency::Unknown => 0x0,
Currency::Usd => 0x1,
Currency::Eq => 0x2,
Currency::Eth => 0x3,
Currency::Btc => 0x4,
Currency::Eos => 0x5,
Currency::Dot => 0x6,
}
}
}
impl From<u8> for Currency {
fn from(orig: u8) -> Self {
match orig {
0x0 => Currency::Unknown,
0x1 => Currency::Usd,
0x2 => Currency::Eq,
0x3 => Currency::Eth,
0x4 => Currency::Btc,
0x5 => Currency::Eos,
0x6 => Currency::Dot,
_ => Currency::Unknown,
}
}
}
pub mod test {
use crate::currency::Currency;
use sp_std::cmp::Ordering;
#[derive(Copy, Clone)]
pub struct CurrencyTag {
pub currency: Currency,
}
impl CurrencyTag {
pub fn new(currency: Currency) -> CurrencyTag {
CurrencyTag { currency }
}
fn value(&self) -> i32 {
match self.currency {
Currency::Btc => 0,
Currency::Eth => 1,
Currency::Eos => 2,
Currency::Usd => 3,
Currency::Eq => 4,
Currency::Dot => 5,
_ => panic!("Unexpected currency"),
}
}
}
impl PartialEq for CurrencyTag {
fn eq(&self, _other: &Self) -> bool {
self.value() == self.value()
}
}
impl Eq for CurrencyTag {}
impl PartialOrd for CurrencyTag {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
Some(self.value().cmp(&other.value()))
}
}
impl Ord for CurrencyTag {
fn cmp(&self, other: &Self) -> Ordering {
self.value().cmp(&other.value())
}
}
}