279 lines
8.5 KiB
QML
279 lines
8.5 KiB
QML
pragma Singleton
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import QtQuick
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import Quickshell
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import Quickshell.Io
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import qs.Commons
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import qs.Services
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// Weather logic and caching with stable UI properties
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Singleton {
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id: root
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property string locationFile: Quickshell.env("NOCTALIA_WEATHER_FILE") || (Settings.cacheDir + "location.json")
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property int weatherUpdateFrequency: 30 * 60 // 30 minutes expressed in seconds
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property bool isFetchingWeather: false
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readonly property alias data: adapter // Used to access via LocationService.data.xxx from outside, best to use "adapter" inside the service.
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// Stable UI properties - only updated when location is fully resolved
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property bool coordinatesReady: false
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property string stableLatitude: ""
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property string stableLongitude: ""
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property string stableName: ""
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FileView {
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id: locationFileView
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path: locationFile
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printErrors: false
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onAdapterUpdated: saveTimer.start()
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onLoaded: {
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Logger.log("Location", "Loaded cached data")
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// Initialize stable properties on load
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if (adapter.latitude !== "" && adapter.longitude !== "" && adapter.weatherLastFetch > 0) {
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root.stableLatitude = adapter.latitude
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root.stableLongitude = adapter.longitude
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root.stableName = adapter.name
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root.coordinatesReady = true
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Logger.log("Location", "Coordinates ready")
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}
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updateWeather()
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}
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onLoadFailed: function (error) {
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updateWeather()
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}
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JsonAdapter {
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id: adapter
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// Core data properties
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property string latitude: ""
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property string longitude: ""
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property string name: ""
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property int weatherLastFetch: 0
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property var weather: null
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}
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}
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// Helper property for UI components (outside JsonAdapter to avoid binding loops)
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readonly property string displayCoordinates: {
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if (!root.coordinatesReady || root.stableLatitude === "" || root.stableLongitude === "") {
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return ""
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}
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const lat = parseFloat(root.stableLatitude).toFixed(4)
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const lon = parseFloat(root.stableLongitude).toFixed(4)
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return `${lat}, ${lon}`
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}
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// Every 20s check if we need to fetch new weather
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Timer {
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id: updateTimer
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interval: 20 * 1000
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running: true
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repeat: true
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onTriggered: {
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updateWeather()
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}
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}
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Timer {
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id: saveTimer
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running: false
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interval: 1000
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onTriggered: locationFileView.writeAdapter()
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}
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// --------------------------------
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function init() {
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// does nothing but ensure the singleton is created
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// do not remove
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Logger.log("Location", "Service started")
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}
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// --------------------------------
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function resetWeather() {
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Logger.log("Location", "Resetting weather data")
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// Mark as changing to prevent UI updates
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root.coordinatesReady = false
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// Reset stable properties
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root.stableLatitude = ""
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root.stableLongitude = ""
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root.stableName = ""
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// Reset core data
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adapter.latitude = ""
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adapter.longitude = ""
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adapter.name = ""
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adapter.weatherLastFetch = 0
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adapter.weather = null
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// Try to fetch immediately
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updateWeather()
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}
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// --------------------------------
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function updateWeather() {
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if (isFetchingWeather) {
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Logger.warn("Location", "Weather is still fetching")
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return
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}
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if ((adapter.weatherLastFetch === "") || (adapter.weather === null) || (adapter.latitude === "")
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|| (adapter.longitude === "") || (adapter.name !== Settings.data.location.name)
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|| (Time.timestamp >= adapter.weatherLastFetch + weatherUpdateFrequency)) {
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getFreshWeather()
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}
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}
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// --------------------------------
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function getFreshWeather() {
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isFetchingWeather = true
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// Check if location name has changed
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const locationChanged = data.name !== Settings.data.location.name
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if (locationChanged) {
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root.coordinatesReady = false
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Logger.log("Location", "Location changed from", adapter.name, "to", Settings.data.location.name)
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}
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if ((adapter.latitude === "") || (adapter.longitude === "") || locationChanged) {
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_geocodeLocation(Settings.data.location.name, function (latitude, longitude, name, country) {
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Logger.log("Location", "Geocoded", Settings.data.location.name, "to:", latitude, "/", longitude)
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// Save location name
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adapter.name = Settings.data.location.name
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// Save GPS coordinates
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adapter.latitude = latitude.toString()
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adapter.longitude = longitude.toString()
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root.stableName = `${name}, ${country}`
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_fetchWeather(latitude, longitude, errorCallback)
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}, errorCallback)
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} else {
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_fetchWeather(adapter.latitude, adapter.longitude, errorCallback)
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}
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}
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// --------------------------------
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function _geocodeLocation(locationName, callback, errorCallback) {
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Logger.log("Location", "Geocoding location name")
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var geoUrl = "https://assets.noctalia.dev/geocode.php?city=" + encodeURIComponent(
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locationName) + "&language=en&format=json"
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var xhr = new XMLHttpRequest()
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xhr.onreadystatechange = function () {
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if (xhr.readyState === XMLHttpRequest.DONE) {
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if (xhr.status === 200) {
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try {
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var geoData = JSON.parse(xhr.responseText)
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if (geoData.lat != null) {
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callback(geoData.lat, geoData.lng, geoData.name, geoData.country)
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} else {
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errorCallback("Location", "could not resolve location name")
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}
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} catch (e) {
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errorCallback("Location", "Failed to parse geocoding data: " + e)
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}
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} else {
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errorCallback("Location", "Geocoding error: " + xhr.status)
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}
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}
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}
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xhr.open("GET", geoUrl)
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xhr.send()
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}
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// --------------------------------
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function _fetchWeather(latitude, longitude, errorCallback) {
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Logger.log("Location", "Fetching weather from api.open-meteo.com")
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var url = "https://api.open-meteo.com/v1/forecast?latitude=" + latitude + "&longitude=" + longitude
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+ "¤t_weather=true¤t=relativehumidity_2m,surface_pressure&daily=temperature_2m_max,temperature_2m_min,weathercode&timezone=auto"
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var xhr = new XMLHttpRequest()
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xhr.onreadystatechange = function () {
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if (xhr.readyState === XMLHttpRequest.DONE) {
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if (xhr.status === 200) {
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try {
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var weatherData = JSON.parse(xhr.responseText)
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//console.log(JSON.stringify(weatherData))
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// Save core data
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data.weather = weatherData
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data.weatherLastFetch = Time.timestamp
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// Update stable display values only when complete and successful
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root.stableLatitude = data.latitude = weatherData.latitude.toString()
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root.stableLongitude = data.longitude = weatherData.longitude.toString()
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root.coordinatesReady = true
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isFetchingWeather = false
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Logger.log("Location", "Cached weather to disk - stable coordinates updated")
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} catch (e) {
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errorCallback("Location", "Failed to parse weather data")
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}
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} else {
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errorCallback("Location", "Weather fetch error: " + xhr.status)
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}
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}
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}
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xhr.open("GET", url)
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xhr.send()
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}
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// --------------------------------
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function errorCallback(module, message) {
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Logger.error(module, message)
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isFetchingWeather = false
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}
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// --------------------------------
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function weatherSymbolFromCode(code) {
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if (code === 0)
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return "sunny"
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if (code === 1 || code === 2)
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return "partly_cloudy_day"
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if (code === 3)
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return "cloud"
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if (code >= 45 && code <= 48)
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return "foggy"
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if (code >= 51 && code <= 67)
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return "rainy"
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if (code >= 71 && code <= 77)
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return "weather_snowy"
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if (code >= 80 && code <= 82)
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return "rainy"
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if (code >= 95 && code <= 99)
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return "thunderstorm"
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return "cloud"
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}
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// --------------------------------
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function weatherDescriptionFromCode(code) {
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if (code === 0)
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return "Clear sky"
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if (code === 1)
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return "Mainly clear"
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if (code === 2)
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return "Partly cloudy"
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if (code === 3)
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return "Overcast"
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if (code === 45 || code === 48)
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return "Fog"
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if (code >= 51 && code <= 67)
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return "Drizzle"
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if (code >= 71 && code <= 77)
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return "Snow"
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if (code >= 80 && code <= 82)
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return "Rain showers"
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if (code >= 95 && code <= 99)
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return "Thunderstorm"
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return "Unknown"
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}
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// --------------------------------
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function celsiusToFahrenheit(celsius) {
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return 32 + celsius * 1.8
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}
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}
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