feat: add Tron chain definitions for currency package

- Add Tron mainnet and Nile testnet chain configurations
- Add TronChains types and exports
- Update currency-types with Tron chain support

Author: rodrigopavezi

packages/currency/src/chains/declarative/data/nile.ts

@@ -0,0 +1,10 @@
+export const chainId = 'nile';
+
+// Nile is Tron's test network
+export const testnet = true;
+
+// Test tokens on Nile testnet
+// Note: These are testnet token addresses, not mainnet
+export const currencies = {
+  // Add testnet token addresses as needed
+};

packages/currency/src/chains/declarative/data/tron.ts

@@ -1 +1,20 @@
 export const chainId = 'tron';
+
+// Tron mainnet configuration
+export const testnet = false;
+
+// Common TRC20 tokens on Tron
+export const currencies = {
+  // USDT-TRC20 - the most widely used stablecoin on Tron
+  TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t: {
+    name: 'Tether USD',
+    symbol: 'USDT',
+    decimals: 6,
+  },
+  // USDC on Tron
+  TEkxiTehnzSmSe2XqrBj4w32RUN966rdz8: {
+    name: 'USD Coin',
+    symbol: 'USDC',
+    decimals: 6,
+  },
+};

packages/currency/src/chains/declarative/index.ts

@@ -1,6 +1,7 @@
 import { CurrencyTypes } from '@requestnetwork/types';
 
 import * as TronDefinition from './data/tron';
+import * as NileDefinition from './data/nile';
 import * as SolanaDefinition from './data/solana';
 import * as StarknetDefinition from './data/starknet';
 import * as TonDefinition from './data/ton';
@@ -11,6 +12,7 @@ export type DeclarativeChain = CurrencyTypes.Chain;
 
 export const chains: Record<CurrencyTypes.DeclarativeChainName, DeclarativeChain> = {
   tron: TronDefinition,
+  nile: NileDefinition,
   solana: SolanaDefinition,
   starknet: StarknetDefinition,
   ton: TonDefinition,

packages/currency/src/chains/index.ts

@@ -1,7 +1,8 @@
 import BtcChains from './btc/BtcChains';
 import EvmChains from './evm/EvmChains';
 import NearChains from './near/NearChains';
+import TronChains from './tron/TronChains';
 import DeclarativeChains from './declarative/DeclarativeChains';
 import { isSameChain } from './utils';
 
-export { BtcChains, EvmChains, NearChains, DeclarativeChains, isSameChain };
+export { BtcChains, EvmChains, NearChains, TronChains, DeclarativeChains, isSameChain };

packages/currency/src/chains/tron/TronChains.ts

@@ -0,0 +1,6 @@
+import { ChainsAbstract } from '../ChainsAbstract';
+import { CurrencyTypes, RequestLogicTypes } from '@requestnetwork/types';
+import { TronChain, chains } from './index';
+
+class TronChains extends ChainsAbstract<CurrencyTypes.TronChainName, TronChain, string> {}
+export default new TronChains(chains, RequestLogicTypes.CURRENCY.ETH);

packages/currency/src/chains/tron/index.ts

@@ -0,0 +1,11 @@
+import { CurrencyTypes } from '@requestnetwork/types';
+
+import * as TronDefinition from '../declarative/data/tron';
+import * as NileDefinition from '../declarative/data/nile';
+
+export type TronChain = CurrencyTypes.Chain;
+
+export const chains: Record<CurrencyTypes.TronChainName, TronChain> = {
+  tron: TronDefinition,
+  nile: NileDefinition,
+};

packages/types/src/currency-types.ts

@@ -43,7 +43,12 @@ export type BtcChainName = 'mainnet' | 'testnet';
 /**
  * List of supported Declarative chains
  */
-export type DeclarativeChainName = 'tron' | 'solana' | 'ton' | 'starknet' | 'aleo' | 'sui';
+export type DeclarativeChainName = 'tron' | 'nile' | 'solana' | 'ton' | 'starknet' | 'aleo' | 'sui';
+
+/**
+ * List of supported Tron chains (mainnet and testnets)
+ */
+export type TronChainName = 'tron' | 'nile';
 
 /**
  * List of supported NEAR chains
@@ -54,9 +59,9 @@ export type NearChainName = 'aurora' | 'aurora-testnet' | 'near' | 'near-testnet
 export type ChainName = EvmChainName | BtcChainName | NearChainName | DeclarativeChainName;
 
 /**
- * Virtual machin chains, where payment proxy contracts can be deployed
+ * Virtual machine chains, where payment proxy contracts can be deployed
  */
-export type VMChainName = EvmChainName | NearChainName;
+export type VMChainName = EvmChainName | NearChainName | TronChainName;
 
 /**
  * Common types used in token configuration files