74 lines
1.6 KiB
JavaScript
74 lines
1.6 KiB
JavaScript
import React, {useContext, useState} from "react";
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import api from "../../services/vehiclesAPI";
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import { LocalDateTimeString } from "../../utils/dates";
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import {useInterval} from "usehooks-ts";
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const CANSignalContext = React.createContext();
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const BlankSignal = (msg) => ({
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timestamp: "",
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signal: msg,
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value: "",
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});
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const transformSignals = (signals) =>
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signals
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.map((signal) => {
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const { timestamp, value, name } = signal;
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return {
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timestamp: LocalDateTimeString(timestamp),
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signal: name,
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value: value,
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};
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})
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.flat();
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export const CANSignalProvider = ({ token, children }) => {
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const [vin, setVIN] = useState(null);
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const [signals, setSignals] = useState([]);
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const [delay, setDelay] = useState(500);
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useInterval(
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() => {
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getCANSignals()
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}, vin?delay:null
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)
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const getCANSignals = async () => {
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try {
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if (!vin) return;
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const result = await api.getCANSignals(vin, token);
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if (result.error)
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throw new Error(`Get CAN signals error. ${result.message}`);
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const items = transformSignals(result.data);
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if (items.length > 0) {
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setDelay(500);
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setSignals(items);
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} else {
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setDelay(1000);
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setSignals([BlankSignal("No signals")]);
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}
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} catch (e) {
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setSignals([BlankSignal(e.message)]);
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}
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};
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return (
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<CANSignalContext.Provider
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value={{
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signals,
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setVIN,
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}}
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>
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{children}
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</CANSignalContext.Provider>
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);
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};
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export const useCANSignalContext = () => useContext(CANSignalContext);
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