trezor-wallet/src/reducers/PendingTxReducer.js

/* @flow */
import * as PENDING from 'actions/constants/pendingTx';
import * as SEND from 'actions/constants/send';

import type { Action } from 'flowtype';
import type { SendTxAction } from 'actions/SendFormActions';

export type PendingTx = {
    +type: 'send' | 'recv';
    +id: string;
    +network: string;
    +currency: string;
    +amount: string;
    +total: string;
    +tx: any;
    +nonce: number;
    +address: string;
    rejected: boolean;
}

export type State = Array<PendingTx>;

const initialState: State = [];

// const add01 = (state: State, action: SendTxAction): State => {
//     const newState = [...state];
//     newState.push({
//         id: action.txid,
//         network: action.account.network,
//         currency: action.selectedCurrency,
//         amount: action.amount,
//         total: action.total,
//         tx: action.tx,
//         nonce: action.nonce,
//         address: action.account.address,
//         rejected: false,
//     });
//     return newState;
// };

const add = (state: State, payload: any): State => {
    const newState = [...state];
    newState.push(payload);
    return newState;
};

const remove = (state: State, id: string): State => state.filter(tx => tx.id !== id);

const reject = (state: State, id: string): State => state.map((tx) => {
    if (tx.id === id && !tx.rejected) {
        return { ...tx, rejected: true };
    }
    return tx;
});

export default function pending(state: State = initialState, action: Action): State {
    switch (action.type) {
        // case SEND.TX_COMPLETE:
        //     return add(state, action);

        case PENDING.ADD:
           return add(state, action.payload);
        case PENDING.TX_RESOLVED:
            return remove(state, action.tx.id);
        case PENDING.TX_NOT_FOUND:
            return reject(state, action.tx.id);

        case PENDING.FROM_STORAGE:
            return action.payload;

        default:
            return state;
    }
}