cygnal/src/tools/index.js

77 lines
2.2 KiB
JavaScript

import {
MOCK_LOCATION_GPX_PLAYBACK_SPEED,
MOCK_LOCATION_UPDATE_INTERVAL,
MOCK_LOCATION_USE_GPX,
MOCK_LOCATION_LAT_MIN, MOCK_LOCATION_LAT_MAX,
MOCK_LOCATION_LNG_MIN, MOCK_LOCATION_LNG_MAX,
} from '@/constants';
let mockGPX = [];
if (process.env.NODE_ENV !== 'production') {
// Use a node_modules require here, this is handled by Webpack to fetch either
// a custom mock_gpx.json or a default empty one.
mockGPX = require('mock_gpx.json'); // eslint-disable-line global-require
}
export function mockLocationRandom() {
let heading = null;
if (Math.random() > 0.25) {
heading = Math.random() * 360;
}
let speed = null;
if (Math.random() > 0.25) {
speed = Math.random() * 9; // in meters/s
}
const newLocation = {
coords: {
accuracy: Math.random() * 100, // In meters
latitude: (
(Math.random() * (MOCK_LOCATION_LAT_MAX - MOCK_LOCATION_LAT_MIN))
+ MOCK_LOCATION_LAT_MIN
),
longitude: (
(Math.random() * (MOCK_LOCATION_LNG_MAX - MOCK_LOCATION_LNG_MIN))
+ MOCK_LOCATION_LNG_MIN
),
heading,
speed,
},
timestamp: new Date().getTime(),
};
console.log('New mock location: ', newLocation);
return newLocation;
}
export function mockLocationWithGPX(index, setPosition) {
if (mockGPX[index]) {
setPosition(mockGPX[index]);
if (mockGPX[index + 1]) {
const delay = (
Date.parse(mockGPX[index + 1].time)
- Date.parse(mockGPX[index].time)
);
setTimeout(
() => mockLocationWithGPX(index + 1, setPosition),
delay / MOCK_LOCATION_GPX_PLAYBACK_SPEED,
);
}
}
}
export function mockLocation(setPosition) {
if (MOCK_LOCATION_USE_GPX) {
mockLocationWithGPX(0, setPosition);
return -1; // Return a fake setInterval id
}
setPosition(mockLocationRandom());
return setInterval(
() => setPosition(mockLocationRandom()),
MOCK_LOCATION_UPDATE_INTERVAL,
);
}
export function capitalize(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}