signalk-parquet
Version:
Vessel data Parquet file archive with automated value and geospatial triggers. History API compliant with cloud backups and queries.
100 lines • 3.47 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.InvalidResolutionError = void 0;
exports.parseDurationToMillis = parseDurationToMillis;
exports.parseResolutionToMillis = parseResolutionToMillis;
const core_1 = require("@js-joda/core");
/**
* Parse duration in multiple formats, return milliseconds.
*
* Formats (detection order):
* 1. ISO 8601: PT1H, PT30M, P1D, PT1H30M
* 2. Integer seconds: 3600, 60
* 3. Shorthand: 1h, 30m, 5s, 2d (backward compatible)
*/
function parseDurationToMillis(duration) {
const trimmed = duration.trim();
// ISO 8601 (starts with P)
if (trimmed.toUpperCase().startsWith('P')) {
return core_1.Duration.parse(trimmed).toMillis();
}
// Integer seconds (pure digits)
if (/^\d+$/.test(trimmed)) {
return parseInt(trimmed, 10) * 1000;
}
// Shorthand (1h, 30m, 5s, 2d)
const match = trimmed.match(/^(\d+)([smhd])$/i);
if (match) {
const value = parseInt(match[1]);
const unit = match[2].toLowerCase();
switch (unit) {
case 's':
return value * 1000;
case 'm':
return value * 60 * 1000;
case 'h':
return value * 60 * 60 * 1000;
case 'd':
return value * 24 * 60 * 60 * 1000;
}
}
throw new Error(`Invalid duration: ${duration}. Use PT1H, 3600, or 1h`);
}
class InvalidResolutionError extends Error {
constructor(message) {
super(message);
this.name = 'InvalidResolutionError';
}
}
exports.InvalidResolutionError = InvalidResolutionError;
const RESOLUTION_UNIT_MILLIS = {
s: 1000,
m: 60000,
h: 3600000,
d: 86400000,
};
const RESOLUTION_TIME_EXPRESSION = /^(\d+)([smhd])$/i;
/**
* Parse the History API `resolution` query parameter into milliseconds.
*
* Per the SignalK History API spec, resolution is a number of seconds or a
* time expression of the form `<integer><unit>` where unit is s|m|h|d.
*/
function parseResolutionToMillis(resolution) {
const reject = () => {
throw new InvalidResolutionError(`resolution parameter must be a positive number of seconds or a time expression like '1s', '1m', '1h', '1d'`);
};
const toMillisOrReject = (seconds) => {
const millis = seconds * 1000;
if (!Number.isFinite(millis) || millis <= 0)
reject();
return millis;
};
if (typeof resolution === 'number') {
if (!Number.isFinite(resolution) || resolution <= 0)
reject();
return toMillisOrReject(resolution);
}
// Express can hand us an array (?resolution=1s&resolution=2s) typed as
// string by the route layer's cast; reject anything that isn't actually
// a string before calling .trim().
if (typeof resolution !== 'string')
reject();
const trimmed = resolution.trim();
const match = RESOLUTION_TIME_EXPRESSION.exec(trimmed);
if (match) {
const value = Number(match[1]);
if (value <= 0)
reject();
const millis = value * RESOLUTION_UNIT_MILLIS[match[2].toLowerCase()];
if (!Number.isFinite(millis) || millis <= 0)
reject();
return millis;
}
const asNumber = Number(trimmed);
if (trimmed !== '' && Number.isFinite(asNumber) && asNumber > 0) {
return toMillisOrReject(asNumber);
}
return reject();
}
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