@broxus/js-bridge-essentials/dist/esm/models/ton-alien-proxy/TonAlienProxyUtils.js

Bridge JavaScript Essentials library

import { getFullContractState, resolveTvmAddress } from '@broxus/js-core';
import { debug } from '@broxus/js-utils';
import { JettonAlienEvm } from '../../models/jetton-alien-evm';
import { tonAlienProxyContract, tonMergePoolContract, tonMergeRouterContract, } from '../../models/ton-alien-proxy/contracts';
import { resolveTonAddress } from '../../utils';
export class TonAlienProxyUtils {
    static async getConfiguration(connection, proxyAddress, cachedState) {
        const state = cachedState ?? await getFullContractState(connection, proxyAddress);
        return tonAlienProxyContract(connection, proxyAddress)
            .methods.getConfiguration({ answerId: 0 })
            .call({ cachedState: state, responsible: true });
    }
    static async getTonEvmConfiguration(connection, proxyAddress, cachedState) {
        const result = await TonAlienProxyUtils.getConfiguration(connection, proxyAddress, cachedState);
        return result.value0.everscaleConfiguration;
    }
    /**
     * Derive EVM alien token address in TVM by the given proxy address and EVM token params
     * @param {ProviderRpcClient} connection
     * @param {Address | string} proxyAddress
     * @param {Omit<DecodedAbiFunctionInputs<typeof TonAlienProxyAbi, 'deriveEVMAlienTokenRoot'>, 'answerId'>} params
     * @param {FullContractState} [cachedState] - optional. Full contract state of the alien proxy contract
     */
    static async deriveEvmAlienTokenRoot(connection, proxyAddress, params, cachedState) {
        const state = cachedState ?? await getFullContractState(connection, proxyAddress);
        const result = await tonAlienProxyContract(connection, proxyAddress)
            .methods.deriveEVMAlienTokenRoot({ answerId: 0, ...params })
            .call({ cachedState: state, responsible: true });
        return result.value0;
    }
    /**
     * Get derive merge router address by the given TVM-like token and proxy addresses
     * @param {ProviderRpcClient} connection
     * @param {Address | string} proxyAddress
     * @param {Address | string} tokenAddress
     * @param {FullContractState} [cachedState] - optional. Full contract state of the alien proxy contract
     */
    static async deriveMergeRouter(connection, proxyAddress, tokenAddress, cachedState) {
        const state = cachedState ?? await getFullContractState(connection, proxyAddress);
        const result = await tonAlienProxyContract(connection, proxyAddress)
            .methods.deriveMergeRouter({
            answerId: 0,
            token: resolveTvmAddress(tokenAddress),
        })
            .call({ cachedState: state, responsible: true });
        return result.router;
    }
    /**
     * Get merge pool address by the given merge router address
     * @param {ProviderRpcClient} connection
     * @param {Address | string} mergeRouterAddress
     * @param {FullContractState} [cachedState] - optional. Full contract state of the merge router contract
     */
    static async getMergePoolAddress(connection, mergeRouterAddress, cachedState) {
        const state = cachedState ?? await getFullContractState(connection, mergeRouterAddress);
        const result = await tonMergeRouterContract(connection, mergeRouterAddress)
            .methods.getPool({ answerId: 0 })
            .call({ cachedState: state, responsible: true });
        return result.value0;
    }
    static async getMergePoolTokens(connection, mergePoolAddress, cachedState) {
        const state = cachedState ?? await getFullContractState(connection, mergePoolAddress);
        const result = await tonMergePoolContract(connection, mergePoolAddress)
            .methods.getTokens({ answerId: 0 })
            .call({ cachedState: state, responsible: true });
        return {
            canon: result._canon,
            tokens: result._tokens.map(([addr, settings]) => [addr, settings]),
        };
    }
    static async getEvmTokenMergeDetails(connection, proxyAddress, tokenAddress, chainId, cachedState) {
        try {
            const state = cachedState ?? await getFullContractState(connection, proxyAddress);
            const tonTokenAddress = resolveTvmAddress(tokenAddress);
            const mergeRouterAddress = await TonAlienProxyUtils.deriveMergeRouter(connection, proxyAddress, tokenAddress, state);
            const mergePoolAddress = await TonAlienProxyUtils.getMergePoolAddress(connection, mergeRouterAddress);
            const mergedTokens = await TonAlienProxyUtils.getMergePoolTokens(connection, mergePoolAddress);
            const aliens = await Promise.all(mergedTokens.tokens.map(async ([address, settings]) => {
                if (!settings.enabled) {
                    return { isMerged: false };
                }
                try {
                    const meta = await JettonAlienEvm.Utils.getOffchainMeta(resolveTonAddress(address.toString()));
                    return {
                        canonicalAddress: mergedTokens.canon,
                        evmTokenAddress: meta.evmTokenAddress,
                        isMerged: meta.baseChainId === chainId,
                        tonTokenAddress,
                    };
                }
                catch (e) {
                    return { isMerged: false };
                }
            }));
            const merged = aliens.find(e => e.isMerged);
            return merged
                ? {
                    canonicalAddress: merged.canonicalAddress,
                    evmTokenAddress: merged.evmTokenAddress,
                    isMerged: true,
                    mergePoolAddress,
                    mergeRouterAddress,
                    tonTokenAddress,
                }
                : undefined;
        }
        catch (e) {
            debug('JettonAlienProxy.getEvmTokenMergeDetails failed with an error', e);
            return undefined;
        }
    }
}