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62 lines
1.8 KiB
62 lines
1.8 KiB
/* @flow */
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'use strict';
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import Web3 from 'web3';
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import * as STORAGE from '../actions/constants/localStorage';
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import * as WEB3 from '../actions/constants/web3';
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type Web3Instance = {
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network: string;
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web3: Web3;
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chainId: number;
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latestBlock: any;
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gasPrice: any;
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erc20: any;
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}
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const initialState: Array<Web3Instance> = [];
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const createWeb3 = (state: Array<Web3Instance>, action: any): Array<Web3Instance> => {
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const instance: Web3Instance = {
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network: action.network,
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web3: action.web3,
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chainId: parseInt(action.chainId),
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latestBlock: '0',
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gasPrice: '0',
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erc20: action.erc20
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}
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const newState: Array<Web3Instance> = [ ...state ];
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newState.push(instance);
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return newState;
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}
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const updateLatestBlock = (state: Array<Web3Instance>, action: any): Array<Web3Instance> => {
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const index: number = state.findIndex(w3 => w3.network === action.network);
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const newState: Array<Web3Instance> = [ ...state ];
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newState[index].latestBlock = action.blockHash;
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return newState;
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}
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const updateGasPrice = (state: Array<Web3Instance>, action: any): Array<Web3Instance> => {
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const index: number = state.findIndex(w3 => w3.network === action.network);
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const newState: Array<Web3Instance> = [ ...state ];
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newState[index].gasPrice = action.gasPrice;
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return newState;
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}
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export default function web3(state: Array<Web3Instance> = initialState, action: any): any {
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switch (action.type) {
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case WEB3.CREATE :
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return createWeb3(state, action);
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case WEB3.BLOCK_UPDATED :
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return updateLatestBlock(state, action);
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case WEB3.GAS_PRICE_UPDATED :
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return updateGasPrice(state, action);
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default:
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return state;
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}
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} |