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use serde::Deserialize;
use thiserror::Error;
use core::convert::TryFrom;
use std::{convert::TryInto, default, fmt, str::FromStr};
use crate::types::U256;
use strum::EnumVariantNames;
#[derive(Debug, Clone, Error)]
#[error("Failed to parse chain: {0}")]
pub struct ParseChainError(String);
#[repr(u64)]
#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash, Deserialize, EnumVariantNames)]
#[serde(rename_all = "snake_case")]
#[strum(serialize_all = "kebab-case")]
pub enum Chain {
Mainnet = 1,
Ropsten = 3,
Rinkeby = 4,
Goerli = 5,
Kovan = 42,
#[strum(serialize = "xdai")]
XDai = 100,
Polygon = 137,
Fantom = 250,
Dev = 1337,
FantomTestnet = 4002,
PolygonMumbai = 80001,
Avalanche = 43114,
AvalancheFuji = 43113,
Sepolia = 11155111,
Moonbeam = 1287,
MoonbeamDev = 1281,
Moonriver = 1285,
Optimism = 10,
OptimismKovan = 69,
Arbitrum = 42161,
ArbitrumTestnet = 421611,
Cronos = 25,
CronosTestnet = 338,
#[strum(serialize = "bsc")]
BinanceSmartChain = 56,
#[strum(serialize = "bsc-testnet")]
BinanceSmartChainTestnet = 97,
}
impl fmt::Display for Chain {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
let chain = match self {
Chain::Mainnet => "mainnet",
Chain::Ropsten => "ropsten",
Chain::Rinkeby => "rinkeby",
Chain::Goerli => "goerli",
Chain::Kovan => "kovan",
Chain::XDai => "xdai",
Chain::Polygon => "polygon",
Chain::PolygonMumbai => "polygon-mumbai",
Chain::Avalanche => "avalanche",
Chain::AvalancheFuji => "avalanche-fuji",
Chain::Sepolia => "sepolia",
Chain::Moonbeam => "moonbeam",
Chain::MoonbeamDev => "moonbeam-dev",
Chain::Moonriver => "moonriver",
Chain::Optimism => "optimism",
Chain::OptimismKovan => "optimism-kovan",
Chain::Fantom => "fantom",
Chain::Dev => "dev",
Chain::FantomTestnet => "fantom-testnet",
Chain::BinanceSmartChain => "bsc",
Chain::BinanceSmartChainTestnet => "bsc-testnet",
Chain::Arbitrum => "arbitrum",
Chain::ArbitrumTestnet => "arbitrum-testnet",
Chain::Cronos => "cronos",
Chain::CronosTestnet => "cronos-testnet",
};
write!(formatter, "{}", chain)
}
}
impl From<Chain> for u32 {
fn from(chain: Chain) -> Self {
chain as u32
}
}
impl From<Chain> for U256 {
fn from(chain: Chain) -> Self {
u32::from(chain).into()
}
}
impl From<Chain> for u64 {
fn from(chain: Chain) -> Self {
u32::from(chain).into()
}
}
impl TryFrom<u64> for Chain {
type Error = ParseChainError;
fn try_from(chain: u64) -> Result<Chain, Self::Error> {
Ok(match chain {
1 => Chain::Mainnet,
3 => Chain::Ropsten,
4 => Chain::Rinkeby,
5 => Chain::Goerli,
42 => Chain::Kovan,
100 => Chain::XDai,
137 => Chain::Polygon,
1337 => Chain::Dev,
250 => Chain::Fantom,
4002 => Chain::FantomTestnet,
80001 => Chain::PolygonMumbai,
43114 => Chain::Avalanche,
43113 => Chain::AvalancheFuji,
11155111 => Chain::Sepolia,
1287 => Chain::Moonbeam,
1281 => Chain::MoonbeamDev,
1285 => Chain::Moonriver,
10 => Chain::Optimism,
69 => Chain::OptimismKovan,
56 => Chain::BinanceSmartChain,
97 => Chain::BinanceSmartChainTestnet,
42161 => Chain::Arbitrum,
421611 => Chain::ArbitrumTestnet,
25 => Chain::Cronos,
338 => Chain::CronosTestnet,
_ => return Err(ParseChainError(chain.to_string())),
})
}
}
impl TryFrom<U256> for Chain {
type Error = ParseChainError;
fn try_from(chain: U256) -> Result<Chain, Self::Error> {
if chain.bits() > 64 {
return Err(ParseChainError(chain.to_string()))
}
chain.as_u64().try_into()
}
}
impl FromStr for Chain {
type Err = ParseChainError;
fn from_str(chain: &str) -> Result<Self, Self::Err> {
Ok(match chain {
"mainnet" => Chain::Mainnet,
"ropsten" => Chain::Ropsten,
"rinkeby" => Chain::Rinkeby,
"goerli" => Chain::Goerli,
"kovan" => Chain::Kovan,
"xdai" => Chain::XDai,
"polygon" => Chain::Polygon,
"polygon-mumbai" => Chain::PolygonMumbai,
"avalanche" => Chain::Avalanche,
"avalanche-fuji" => Chain::AvalancheFuji,
"sepolia" => Chain::Sepolia,
"moonbeam" => Chain::Moonbeam,
"moonbeam-dev" => Chain::MoonbeamDev,
"moonriver" => Chain::Moonriver,
"optimism" => Chain::Optimism,
"optimism-kovan" => Chain::OptimismKovan,
"fantom" => Chain::Fantom,
"fantom-testnet" => Chain::FantomTestnet,
"dev" => Chain::Dev,
"bsc" => Chain::BinanceSmartChain,
"bsc-testnet" => Chain::BinanceSmartChainTestnet,
"arbitrum" => Chain::Arbitrum,
"arbitrum-testnet" => Chain::ArbitrumTestnet,
"cronos" => Chain::Cronos,
"cronos-testnet" => Chain::CronosTestnet,
_ => return Err(ParseChainError(chain.to_owned())),
})
}
}
impl Chain {
pub fn is_legacy(&self) -> bool {
matches!(
self,
Chain::Optimism |
Chain::OptimismKovan |
Chain::Fantom |
Chain::FantomTestnet |
Chain::BinanceSmartChain |
Chain::BinanceSmartChainTestnet |
Chain::Arbitrum |
Chain::ArbitrumTestnet,
)
}
}
impl default::Default for Chain {
fn default() -> Self {
Chain::Mainnet
}
}
#[test]
fn test_default_chain() {
assert_eq!(Chain::default(), Chain::Mainnet);
}
