34 lines
963 B
TypeScript
34 lines
963 B
TypeScript
import {
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AddCustomTokenAction,
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CustomTokenAction,
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RemoveCustomTokenAction
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} from 'actions/customTokens';
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import { TypeKeys } from 'actions/customTokens/constants';
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import { Token } from 'config/data';
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export type State = Token[];
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export const INITIAL_STATE: State = [];
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function addCustomToken(state: State, action: AddCustomTokenAction): State {
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if (state.find(token => token.symbol === action.payload.symbol)) {
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return state;
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}
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return [...state, action.payload];
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}
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function removeCustomToken(state: State, action: RemoveCustomTokenAction): State {
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return state.filter(token => token.symbol !== action.payload);
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}
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export function customTokens(state: State = INITIAL_STATE, action: CustomTokenAction): State {
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switch (action.type) {
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case TypeKeys.CUSTOM_TOKEN_ADD:
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return addCustomToken(state, action);
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case TypeKeys.CUSTOM_TOKEN_REMOVE:
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return removeCustomToken(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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