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8295bd6882
this shall be a progressive process
82 lines
1.5 KiB
JavaScript
82 lines
1.5 KiB
JavaScript
const take = require('lodash.take');
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const actions = {
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'UPDATE_STATS': (state, action) => {
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const data = (state[action.subscription] || {
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cpu: [],
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mem: [],
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disk: []
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});
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const newData = ['cpu', 'mem', 'disk'].reduce((sum, key) => {
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const item = {
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...action.payload.stats[key],
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when: action.payload.when
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};
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const prepended = [item].concat(data[key]);
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return {
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...sum,
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[key]: take(prepended, state.windowSize)
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};
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}, {});
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return {
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...state,
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[action.subscription]: newData
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};
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}
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};
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module.exports = (state, action) => {
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return !actions[action.type] ? state : actions[action.type](state, action);
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};
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module.exports.subscribe = (id) => (dispatch, getState) => {
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const {
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ws
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} = getState();
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const p = new Promise((resolve, reject) => {
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ws.subscribe(`/stats/${id}`, (update, flag) => {
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dispatch({
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type: 'UPDATE_STATS',
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payload: update,
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subscription: id
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});
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}, (err) => {
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if (err) {
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return reject(err);
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}
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resolve();
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});
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});
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return dispatch({
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type: 'SUBSCRIBE',
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payload: p
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});
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};
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module.exports.unsubscribe = (id) => (dispatch, getState) => {
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const {
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ws
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} = getState();
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const p = new Promise((resolve, reject) => {
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ws.unsubscribe(`/stats/${id}`, null, (err) => {
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if (err) {
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return reject(err);
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}
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resolve();
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});
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});
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return dispatch({
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type: 'UNSUBSCRIBE',
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payload: p
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});
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}; |