MyCrypto/common/selectors/config/tokens.ts

53 lines
1.5 KiB
TypeScript

import { AppState } from 'reducers';
import { getUnit } from 'selectors/transaction/meta';
import { isEtherUnit } from 'libs/units';
import { SHAPESHIFT_TOKEN_WHITELIST } from 'api/shapeshift';
import { getStaticNetworkConfig } from 'selectors/config';
import { Token } from 'types/network';
export function getNetworkTokens(state: AppState): Token[] {
const network = getStaticNetworkConfig(state);
return network ? network.tokens : [];
}
export function getAllTokens(state: AppState): Token[] {
const networkTokens = getNetworkTokens(state);
return networkTokens.concat(state.customTokens);
}
export function getSelectedTokenContractAddress(state: AppState): string {
const allTokens = getAllTokens(state);
const currentUnit = getUnit(state);
if (isEtherUnit(currentUnit)) {
return '';
}
return allTokens.reduce((tokenAddr, tokenInfo) => {
if (tokenAddr && tokenAddr.length) {
return tokenAddr;
}
if (tokenInfo.symbol === currentUnit) {
return tokenInfo.address;
}
return tokenAddr;
}, '');
}
export function tokenExists(state: AppState, token: string): boolean {
const existInWhitelist = SHAPESHIFT_TOKEN_WHITELIST.includes(token);
const existsInNetwork = !!getAllTokens(state).find(t => t.symbol === token);
return existsInNetwork || existInWhitelist;
}
export function isSupportedUnit(state: AppState, unit: string) {
const isToken: boolean = tokenExists(state, unit);
const isEther: boolean = isEtherUnit(unit);
if (!isToken && !isEther) {
return false;
}
return true;
}