Add CoinType used for Ledger and encode/decode utils

Cargo.toml

@@ -6,13 +6,18 @@ repository = "https://github.com/mintlayer/mintlayer-core-primitives"
 readme = "README.md"
 license = "MIT"
 version = "1.0.0"
-edition = "2024"
-rust-version = "1.88"
+edition = "2021"
+rust-version = "1.85"
 
 [dependencies]
-derive_more = { version = "2.0", default-features = false, features = ["debug"] }
+derive_more = { version = "2.0", default-features = false, features = [
+  "debug",
+] }
 fixed-hash = { version = "0.8", default-features = false }
-parity-scale-codec = { version = "3.7", default-features = false, features = ["derive"] }
+parity-scale-codec = { git = "https://github.com/paritytech/parity-scale-codec.git", rev = "5021525697edc0661591ebc71392c48d950a10b0", default-features = false, features = [
+  "derive",
+] }
+
 strum = { version = "0.27", default-features = false, features = ["derive"] }
 
 [dev-dependencies]

src/misc.rs

@@ -13,9 +13,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use parity_scale_codec::{Decode, Encode};
+use parity_scale_codec::{Decode, DecodeAll, Encode};
 
-use crate::TokenId;
+use crate::{Destination, TokenId};
 
 pub type PscVec<T> = parity_scale_codec::alloc::vec::Vec<T>;
 
@@ -32,6 +32,8 @@ pub struct Amount {
 }
 
 impl Amount {
+    pub const ZERO: Self = Self::from_atoms(0);
+
     pub const fn from_atoms(v: AmountUIntType) -> Self {
         Amount { atoms: v }
     }
@@ -89,3 +91,128 @@ pub type SecondsCountUIntType = u64;
 
 #[derive(Debug, Clone, Copy, PartialOrd, Ord, PartialEq, Eq, Encode, Decode)]
 pub struct SecondsCount(#[codec(compact)] pub SecondsCountUIntType);
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum CoinType {
+    Mainnet,
+    Testnet,
+    Regtest,
+    Signet,
+}
+
+impl CoinType {
+    pub const fn coin_ticker(&self) -> &'static str {
+        match self {
+            Self::Mainnet => "ML",
+            Self::Testnet => "TML",
+            Self::Regtest => "RML",
+            Self::Signet => "SML",
+        }
+    }
+
+    pub const fn bip44_coin_type(&self) -> u32 {
+        let hardened_bit = 1 << 31;
+        match self {
+            Self::Mainnet => 19788 + hardened_bit,
+            Self::Testnet | Self::Regtest | Self::Signet => 1 + hardened_bit,
+        }
+    }
+
+    pub const fn coin_decimals(&self) -> u8 {
+        11
+    }
+
+    pub const fn address_prefix(&self, destination: &Destination) -> &'static str {
+        match self {
+            Self::Mainnet => match destination {
+                Destination::AnyoneCanSpend => "mxanyonecanspend",
+                Destination::PublicKeyHash(_) => "mtc",
+                Destination::PublicKey(_) => "mptc",
+                Destination::ScriptHash(_) => "mstc",
+                Destination::ClassicMultisig(_) => "mmtc",
+            },
+            Self::Testnet => match destination {
+                Destination::AnyoneCanSpend => "txanyonecanspend",
+                Destination::PublicKeyHash(_) => "tmt",
+                Destination::PublicKey(_) => "tpmt",
+                Destination::ScriptHash(_) => "tstc",
+                Destination::ClassicMultisig(_) => "tmtc",
+            },
+            Self::Regtest => match destination {
+                Destination::AnyoneCanSpend => "rxanyonecanspend",
+                Destination::PublicKeyHash(_) => "rmt",
+                Destination::PublicKey(_) => "rpmt",
+                Destination::ScriptHash(_) => "rstc",
+                Destination::ClassicMultisig(_) => "rmtc",
+            },
+            Self::Signet => match destination {
+                Destination::AnyoneCanSpend => "sxanyonecanspend",
+                Destination::PublicKeyHash(_) => "smt",
+                Destination::PublicKey(_) => "spmt",
+                Destination::ScriptHash(_) => "sstc",
+                Destination::ClassicMultisig(_) => "smtc",
+            },
+        }
+    }
+
+    pub const fn pool_id_address_prefix(&self) -> &'static str {
+        match self {
+            Self::Mainnet => "mpool",
+            Self::Testnet => "tpool",
+            Self::Regtest => "rpool",
+            Self::Signet => "spool",
+        }
+    }
+
+    pub const fn delegation_id_address_prefix(&self) -> &'static str {
+        match self {
+            Self::Mainnet => "mdelg",
+            Self::Testnet => "tdelg",
+            Self::Regtest => "rdelg",
+            Self::Signet => "sdelg",
+        }
+    }
+
+    pub const fn token_id_address_prefix(&self) -> &'static str {
+        match self {
+            Self::Mainnet => "mmltk",
+            Self::Testnet => "tmltk",
+            Self::Regtest => "rmltk",
+            Self::Signet => "smltk",
+        }
+    }
+
+    pub const fn order_id_address_prefix(&self) -> &'static str {
+        match self {
+            Self::Mainnet => "mordr",
+            Self::Testnet => "tordr",
+            Self::Regtest => "rordr",
+            Self::Signet => "sordr",
+        }
+    }
+
+    pub const fn vrf_public_key_address_prefix(&self) -> &'static str {
+        match self {
+            Self::Mainnet => "mvrfpk",
+            Self::Testnet => "tvrfpk",
+            Self::Regtest => "rvrfpk",
+            Self::Signet => "svrfpk",
+        }
+    }
+}
+
+pub fn encode<T: Encode>(t: &T) -> PscVec<u8> {
+    t.encode()
+}
+
+pub fn encode_to<T: Encode>(t: &T, buf: &mut PscVec<u8>) {
+    t.encode_to(buf)
+}
+
+pub fn decode_all<T: Decode>(mut bytes: &[u8]) -> Option<T> {
+    T::decode_all(&mut bytes).ok()
+}
+
+pub fn encode_as_compact(num: u32) -> PscVec<u8> {
+    parity_scale_codec::Compact::<u32>::encode(&num.into())
+}