raiden-ts/dist/reducer.js

Raiden Light Client Typescript/Javascript SDK

import unset from 'lodash/fp/unset';
import { raidenConfigUpdate, raidenStarted } from './actions';
import channelsReducer from './channels/reducer';
import servicesReducer from './services/reducer';
import { initialState } from './state';
import transfersReducer from './transfers/reducer';
import transportReducer from './transport/reducer';
import { createReducer } from './utils/actions';
// update state.config on raidenConfigUpdate action
// resets key to default value if value is undefined, otherwise overwrites it
const configReducer = createReducer(initialState)
    .handle(raidenConfigUpdate, (state, { payload }) => {
    let config = state.config;
    for (const [k, v] of Object.entries(payload)) {
        if (v !== undefined)
            config = { ...config, [k]: v };
        else if (k in config)
            config = unset(k, config);
    }
    if (config === state.config)
        return state;
    return { ...state, config };
})
    // raidenStarted changes reference to ensure state$ emits when starting
    .handle(raidenStarted, (state) => ({ ...state }));
const raidenReducers = {
    configReducer,
    channelsReducer,
    transportReducer,
    transfersReducer,
    servicesReducer,
};
/**
 * Raiden root reducer
 * Apply action over each submodule root reducer in a flattened manner (iteratively).
 * Notice the submodules reducers aren't handled only a partial/deep property of the state
 * (as combineReducers), but instead receive the whole state, so they can act on any part of the
 * state. This approach is similar to `reduce-reducers` util.
 * Each submodule root reducer may then choose to split its concerns into nested or flattened
 * reducers (like this one).
 *
 * @param state - Current RaidenState to reduce
 * @param action - RaidenAction to apply over state
 * @returns New RaidenState
 */
export const raidenReducer = (state = initialState, action) => Object.values(raidenReducers).reduce((s, reducer) => reducer(s, action), state);
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