55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
// @flow
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import type {
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WalletAction,
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SetWalletAction,
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SetBalanceAction,
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SetTokenBalancesAction
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} from 'actions/wallet';
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import { BaseWallet } from 'libs/wallet';
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import { toEther } from 'libs/units';
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import Big from 'big.js';
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export type State = {
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inst: ?BaseWallet,
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// in ETH
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balance: Big,
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tokens: {
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[string]: Big
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}
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};
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export const INITIAL_STATE: State = {
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inst: null,
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balance: new Big(0),
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tokens: {}
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};
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function setWallet(state: State, action: SetWalletAction): State {
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return { ...state, inst: action.payload, balance: new Big(0), tokens: {} };
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}
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function setBalance(state: State, action: SetBalanceAction): State {
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const ethBalance = toEther(action.payload, 'wei');
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return { ...state, balance: ethBalance };
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}
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function setTokenBalances(state: State, action: SetTokenBalancesAction): State {
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return { ...state, tokens: { ...state.tokens, ...action.payload } };
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}
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export function wallet(
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state: State = INITIAL_STATE,
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action: WalletAction
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): State {
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switch (action.type) {
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case 'WALLET_SET':
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return setWallet(state, action);
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case 'WALLET_SET_BALANCE':
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return setBalance(state, action);
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case 'WALLET_SET_TOKEN_BALANCES':
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return setTokenBalances(state, action);
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default:
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return state;
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}
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}
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