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Improve SPC Outlook data fetching and error handling

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- Switch to safeJson() and safePromiseAll() for centralized error handling
- Only set failed state if enabled
This commit is contained in:
Eddy G
2025-06-24 23:09:18 -04:00
parent 09a21e6f5a
commit e472b99b44
1 changed files with 38 additions and 19 deletions
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57
server/scripts/modules/spc-outlook.mjs
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@@ -1,11 +1,12 @@
// display spc outlook in a bar graph
import STATUS from './status.mjs';
import { json } from './utils/fetch.mjs';
import { safeJson, safePromiseAll } from './utils/fetch.mjs';
import { DateTime } from '../vendor/auto/luxon.mjs';
import WeatherDisplay from './weatherdisplay.mjs';
import { registerDisplay } from './navigation.mjs';
import testPolygon from './utils/polygon.mjs';
import { debugFlag } from './utils/debug.mjs';
// list of interesting files ordered [0] = today, [1] = tomorrow...
const urlPattern = (day) => `https://www.spc.noaa.gov/products/outlook/day${day}otlk_cat.nolyr.geojson`;
@@ -18,8 +19,10 @@ const testAllPoints = (point, data) => {
data.forEach((day, index) => {
// initialize the result
result[index] = false;
// if there's no data (file didn't load), exit early
if (day === undefined) return;
// ensure day exists and has features array
if (!day || !day.features || !Array.isArray(day.features)) {
return;
}
// loop through each category
day.features.forEach((feature) => {
if (!feature.geometry.coordinates) return;
@@ -46,7 +49,7 @@ class SpcOutlook extends WeatherDisplay {
// don't display on progress/navigation screen
this.showOnProgress = false;
// calculate file names
// calculate file names, one for each day
this.files = [null, null, null].map((v, i) => urlPattern(i + 1));
// set timings
@@ -56,27 +59,43 @@ class SpcOutlook extends WeatherDisplay {
async getData(weatherParameters, refresh) {
if (!super.getData(weatherParameters, refresh)) return;
// initial data does not need to be reloaded on a location change, only during silent refresh
if (!this.initialData || refresh) {
// SPC outlook data does not need to be reloaded on a location change, only during silent refresh
if (!this.rawOutlookData || refresh) {
try {
// get the three categorical files to get started
const filePromises = await Promise.allSettled(this.files.map((file) => json(file)));
// store the data, promise will always be fulfilled
this.initialData = filePromises.map((outlookDay) => outlookDay.value);
} catch (error) {
console.error('Unable to get spc outlook');
console.error(error.status, error.responseJSON);
// if there's no previous data, fail
if (!this.initialData) {
this.setStatus(STATUS.failed);
// get the data for today, tomorrow, and the day after
const filePromises = this.files.map((file) => safeJson(file, {
retryCount: 1, // Retry one time
timeout: 10000, // 10 second timeout for SPC outlook data
}));
// wait for all the data to be fetched; always returns an array of (potentially null) results
this.rawOutlookData = await safePromiseAll(filePromises);
// Filter out null results (like failed requests) and ensure the response has GeoJSON-looking data
this.rawOutlookData = this.rawOutlookData.filter((value) => value && value.features);
if (this.rawOutlookData.length === 0) {
if (debugFlag('verbose-failures')) {
console.warn('SPC Outlook has zero days of data');
}
if (this.isEnabled) this.setStatus(STATUS.failed);
return;
}
if (this.rawOutlookData.length < this.files.length) {
if (debugFlag('verbose-failures')) {
console.warn(`SPC Outlook only loaded ${this.rawOutlookData.length} of ${this.files.length} days successfully`);
}
}
} catch (error) {
console.error(`Unexpected error getting SPC Outlook data: ${error.message}`);
if (this.isEnabled) this.setStatus(STATUS.failed);
return;
}
}
// do the initial parsing of the data
this.data = testAllPoints([weatherParameters.longitude, weatherParameters.latitude], this.initialData);
// parse the data
this.data = testAllPoints([weatherParameters.longitude, weatherParameters.latitude], this.rawOutlookData);
// if all the data returns false the there's nothing to do, skip this screen
// check if there's a "risk" for any of the three days, otherwise skip the SPC Outlook screen
if (this.data.reduce((prev, cur) => prev || !!cur, false)) {
this.timing.totalScreens = 1;
} else {