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Add basic support for active weather alerts

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yikes nobody should stake their life on how well this works, but it
does seem to basically work..
This commit is contained in:
Lance Edgar 2024-06-08 23:16:29 -05:00
parent 7ed314b5bf
commit 0710f2238c
4 changed files with 134 additions and 2 deletions
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67
src/stores/weather.js
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@ -10,6 +10,7 @@ const getDefaults = () => {
coordinates,
cityState,
weather: null,
alerts: null,
forecast: null,
radarLatestURL: null,
radarLoopURL: null,
@ -32,14 +33,17 @@ export const useWeatherStore = defineStore('weather', {
this.setForecast(null)
this.radarLatestURL = null
this.radarLoopURL = null
this.alerts = null
},
async getWeather() {
if (!this.weather) {
let url
let response
const url = `https://api.weather.gov/points/${this.coordinates}`
const response = await fetch(url)
url = `https://api.weather.gov/points/${this.coordinates}`
response = await fetch(url)
const weather = await response.json()
if (weather.status == 404) {
throw new Error(`Data not found for ${this.coordinates}`)
@ -57,6 +61,65 @@ export const useWeatherStore = defineStore('weather', {
this.radarLoopURL = `https://radar.weather.gov/ridge/standard/${station}_loop.gif`
this.setWeather(weather)
// fetch zone to get its official id
url = weather.properties.forecastZone
response = await fetch(url)
const zone = await response.json()
// fetch alerts for zone
url = `https://api.weather.gov/alerts/active/zone/${zone.properties.id}`
response = await fetch(url)
const zoneAlerts = await response.json()
// fetch county to get its official id
url = weather.properties.county
response = await fetch(url)
const county = await response.json()
// fetch alerts for county
url = `https://api.weather.gov/alerts/active/zone/${county.properties.id}`
response = await fetch(url)
const countyAlerts = await response.json()
const newAlerts = {}
// use latest timestamp from either zone or county
newAlerts.updated = zoneAlerts.updated
if (countyAlerts.updated > zoneAlerts.updated) {
newAlerts.updated = countyAlerts.updated
}
// collect all alert "features" but de-duplicate them
newAlerts.features = {}
for (let feature of zoneAlerts.features) {
newAlerts.features[feature.properties.id] = feature
}
for (let feature of countyAlerts.features) {
newAlerts.features[feature.properties.id] = feature
}
newAlerts.features = Object.values(newAlerts.features)
// put "likely" before "possible" alerts
newAlerts.features.sort((a, b) => {
if (a.properties.certainty == 'Likely' && b.properties.certainty == 'Possible') {
return -1
}
if (a.properties.certainty == 'Possible' && b.properties.certainty == 'Likely') {
return 1
}
// if (a.properties.certainty == b.properties.certainty) {
// return 0
// }
// TODO: what else should this do?
return 0
})
// we have our final alerts
this.alerts = newAlerts
}
return this.weather