MyCrypto/common/reducers/rates.ts

48 lines
1.0 KiB
TypeScript

import { FetchCCRatesSucceeded, RatesAction, CCResponse } from 'actions/rates';
import { TypeKeys } from 'actions/rates/constants';
// SYMBOL -> PRICE TO BUY 1 ETH
export interface State {
rates: { [symbol: string]: CCResponse['rates'] };
ratesError?: string | null;
}
export const INITIAL_STATE: State = {
rates: {}
};
function fetchCCRatesSucceeded(
state: State,
action: FetchCCRatesSucceeded
): State {
return {
...state,
rates: {
...state.rates,
[action.payload.symbol]: action.payload.rates
}
};
}
function fetchCCRatesFailed(state: State): State {
// TODO: Make library for error messages
return {
...state,
ratesError: 'Sorry. We were unable to fetch equivalent rates.'
};
}
export function rates(
state: State = INITIAL_STATE,
action: RatesAction
): State {
switch (action.type) {
case TypeKeys.RATES_FETCH_CC_SUCCEEDED:
return fetchCCRatesSucceeded(state, action);
case TypeKeys.RATES_FETCH_CC_FAILED:
return fetchCCRatesFailed(state);
default:
return state;
}
}