cardano_sdk/cardano/
network.rs

1use crate::{NetworkId, ProtocolParameters, cbor, cbor as minicbor};
2use anyhow::anyhow;
3use std::fmt;
4
5#[cfg_attr(feature = "clap", derive(clap::ValueEnum))]
6#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
7#[cfg_attr(feature = "serde", serde(into = "String", try_from = "&str"))]
8#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, cbor::Encode, cbor::Decode)]
9pub enum Network {
10    #[n(0)]
11    Mainnet,
12    #[n(1)]
13    Preprod,
14    #[n(2)]
15    Preview,
16}
17
18impl Network {
19    pub const MAINNET_MAGIC: u64 = 764824073;
20    pub const PREPROD_MAGIC: u64 = 1;
21    pub const PREVIEW_MAGIC: u64 = 2;
22}
23
24impl fmt::Display for Network {
25    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
26        f.write_str(match self {
27            Self::Mainnet => "mainnet",
28            Self::Preprod => "preprod",
29            Self::Preview => "preview",
30        })
31    }
32}
33
34impl From<Network> for u64 {
35    fn from(network: Network) -> Self {
36        match network {
37            Network::Mainnet => Network::MAINNET_MAGIC,
38            Network::Preprod => Network::PREPROD_MAGIC,
39            Network::Preview => Network::PREVIEW_MAGIC,
40        }
41    }
42}
43
44impl From<Network> for ProtocolParameters {
45    fn from(network: Network) -> ProtocolParameters {
46        match network {
47            Network::Mainnet => Self::mainnet(),
48            Network::Preprod => Self::preprod(),
49            Network::Preview => Self::preview(),
50        }
51    }
52}
53
54impl From<Network> for NetworkId {
55    fn from(network: Network) -> NetworkId {
56        match network {
57            Network::Mainnet => NetworkId::MAINNET,
58            _ => NetworkId::TESTNET,
59        }
60    }
61}
62
63impl From<Network> for String {
64    fn from(network: Network) -> Self {
65        network.to_string()
66    }
67}
68
69impl TryFrom<&str> for Network {
70    type Error = anyhow::Error;
71
72    fn try_from(text: &str) -> anyhow::Result<Self> {
73        fn match_str(candidate: &str, target: Network) -> bool {
74            candidate.to_lowercase() == target.to_string()
75        }
76
77        match text {
78            mainnet if match_str(mainnet, Self::Mainnet) => Ok(Self::Mainnet),
79            preprod if match_str(preprod, Self::Preprod) => Ok(Self::Preprod),
80            preview if match_str(preview, Self::Preview) => Ok(Self::Preview),
81            _ => Err(anyhow!(
82                "unsupported network: {text}; should be one of {}, {}, {}",
83                Self::Mainnet,
84                Self::Preprod,
85                Self::Preview
86            )),
87        }
88    }
89}
90
91// ------------------------------------------------------------------ Inspecting
92
93impl Network {
94    pub fn is_mainnet(&self) -> bool {
95        self == &Network::Mainnet
96    }
97
98    pub fn is_testnet(&self) -> bool {
99        !self.is_mainnet()
100    }
101}
cardano_sdk/cardano/network.rs

cardano_sdk/cardano/
network.rs
