gtfs-display/src/pages/agency-per-day.js

99 lines
3.6 KiB
JavaScript

import React, { useEffect, useState } from 'react';
import axios from 'axios';
import config from '../config';
import AgencyPerDayTable from '../components/agency-per-day-table';
import AgencySelect from '../components/agency-select';
import Input from '../components/input';
export default function AgencyPerDay() {
const dateDefault = 'Select date';
const [date, setDate] = useState(dateDefault);
const agencyNameDefault = 'Select GTFS agency_name';
/* store and initialize data in function component state */
const [strngAgencyId, setStrngAgencyId] = useState(agencyNameDefault);
const [rryAgencyPerDay, setRryAgencyPerDay] = useState([]);
const [rryAgencies, setRryAgencies] = useState([]);
// TODO How do we handle invalid date input?
const handleDate = (e) => {
if (e.target.value.indexOf('2023') !== -1
|| e.target.value.indexOf('2024') !== -1) {
setDate((date) => e.target.value);
}
};
const getRryAgencies = async () => {
try {
/* TODO handle errors: https://www.valentinog.com/blog/await-react/ */
const address = `${config.API}agencyids`;
// console.log('trip-updates-route-day res.data.length: address: ' + address);
const res = await axios.get(address);
// console.log('trip-updates-route-day res.data.length: Agencies: ' + res.data.length);
setRryAgencies((rryAgencies) => res.data);
} catch (err) {
console.error(`err.message: ${err.message}`);
}
};
const getRryAgencyPerDay = async () => {
if (strngAgencyId !== agencyNameDefault
&& date !== dateDefault) {
try {
/* TODO handle errors: https://www.valentinog.com/blog/await-react/ */
const address = `${config.API}trip-updates-by-agency-day?agencyid=${strngAgencyId}&day=${date}`;
// console.log('trip-updates-route-day res.data.length: address: ' + address);
const res = await axios.get(address);
if (res.data !== undefined && res.data !== null) {
// console.log('trip-updates-route-day res.data.length: AgencyPerDay: ' + res.data.length);
setRryAgencyPerDay((rryAgencyPerDay) => res.data);
} else {
console.error('ERROR: trip-updates by routes and day request FAILED');
}
} catch (err) {
console.error(`err.message: ${err.message}`);
}
}
};
const handleChangeAgencyId = (event) => {
// console.log('trip-updates-route-day: handleChangeAgencyId() value: ' + event.target.value);
setStrngAgencyId((strngAgencyId) => event.target.value);
};
/* this hook is run after a DOM update. Changing state might result in an infinite loop */
/* hook need to be placed in body of the function component in which it is used */
useEffect(() => {
getRryAgencies();
/* use an empty dependency array to ensure the hook is running only once */
/* TODO study dependency array: https://reactjs.org/docs/hooks-effect.html */
}, []);
useEffect(() => {
// console.log('trip-updates-route-day: useEffect() strngAgencyId: ' + strngAgencyId);
getRryAgencyPerDay();
/* TODO study dependency array: https://reactjs.org/docs/hooks-effect.html */
}, [strngAgencyId, date]);
return (
<>
<label>
<Input
id="inputDate"
name={dateDefault}
onChange={handleDate}
placeholder="Enter date ${dateDefault}"
type="date"
title="Enter date ${dateDefault}"
value={date}
/>
</label>
<AgencySelect rry={rryAgencies} name={agencyNameDefault} onChange={handleChangeAgencyId} />
<AgencyPerDayTable array={rryAgencyPerDay} title="routes" date={date} />
</>
);
}