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dotfiles/dotfiles/.config/quickshell/config/WeatherData.qml
2026-09-06 01:00:25 +01:00

243 lines
9.5 KiB
QML

pragma Singleton
import QtQuick
import Quickshell
import Quickshell.Io
// Live weather for the bar's Weather.qml icon. A singleton for the same
// reason as SystemUpdates.qml: Bar.qml is instantiated once per monitor
// (shell.qml's Variants), so without this being shared, every extra screen
// would mean another set of network requests running in parallel.
//
// Location is auto-detected from the public IP (via ipwho.is, no API key)
// and cached to disk (~/.cache/quickshell/weather-location.json) so it's
// only ever looked up once, not on every quickshell restart — IP-geolocation
// free tiers rate-limit fast, and a desktop's location barely ever changes
// anyway. Only the weather itself re-polls on a timer. Conditions come from
// Open-Meteo (api.open-meteo.com) — also free and keyless, and it does its
// own °C/km-h conversion server-side via query params.
//
// Loosely modeled on omarchy's weather panel
// (github.com/omacom/omarchy, quattro branch,
// shell/plugins/panels/weather/Model.js) for the WMO weather-code
// grouping, but the icons are this bar's own Material Symbols glyphs
// rather than pulling in a separate icon font just for this.
QtObject {
id: root
// Location barely ever changes for a desktop machine, so it's fetched
// once (and cached); the weather itself is worth re-checking
// periodically.
readonly property int refreshIntervalMs: 15 * 60 * 1000
property bool locating: true
property bool loading: false
property bool hasLocation: false
property string locationName: ""
property real latitude: 0
property real longitude: 0
function saveLocation() {
_locationCache.setText(JSON.stringify({
latitude: root.latitude,
longitude: root.longitude,
name: root.locationName
}))
}
// Called from Weather.qml's search box once you pick a result — always
// wins over whatever IP-based guess was cached before, and persists so
// it sticks across restarts.
function selectLocation(name, lat, lon) {
root.latitude = lat
root.longitude = lon
root.locationName = name
root.hasLocation = true
root.locating = false
root.saveLocation()
root.refresh()
}
property bool searching: false
property var searchResults: []
function search(query) {
const q = String(query || "").trim()
if (q.length < 2) {
root.searchResults = []
return
}
root.searching = true
_searchProc.command = ["curl", "-s", "--max-time", "6",
"https://geocoding-api.open-meteo.com/v1/search?count=5&language=en&format=json&name=" + encodeURIComponent(q)]
_searchProc.running = true
}
property real tempC: 0
property real feelsLikeC: 0
property int humidity: 0
property real windKmh: 0
property int weatherCode: 0
property bool isDay: true
// [{date, code, maxC, minC}] — tomorrow onward; today is already
// covered by the current-conditions fields above.
property var forecast: []
function locate() {
if (_locateProc.running) return
root.locating = true
_locateProc.running = true
}
function refresh() {
if (!root.hasLocation || _weatherProc.running) return
root.loading = true
_weatherProc.command = ["curl", "-s", "--max-time", "8",
"https://api.open-meteo.com/v1/forecast?latitude=" + root.latitude
+ "&longitude=" + root.longitude
+ "&current=temperature_2m,apparent_temperature,relative_humidity_2m,weather_code,is_day,wind_speed_10m"
+ "&daily=weather_code,temperature_2m_max,temperature_2m_min"
+ "&temperature_unit=celsius&wind_speed_unit=kmh&timezone=auto&forecast_days=4"]
_weatherProc.running = true
}
// Material Symbols Rounded glyph for a WMO weather code (see
// https://open-meteo.com/en/docs#weathervariables), grouped the same
// way omarchy's Model.js groups them into its own icon set.
function iconFor(code, day) {
if (code === 0) return day ? "sunny" : "clear_night"
if (code === 1 || code === 2) return day ? "partly_cloudy_day" : "partly_cloudy_night"
if (code === 3) return "cloud"
if (code === 45 || code === 48) return "foggy"
if ([51, 53, 55, 56, 57, 61, 63, 65, 66, 67, 80, 81, 82].indexOf(code) !== -1) return "rainy"
if ([71, 73, 75, 77, 85, 86].indexOf(code) !== -1) return "weather_snowy"
if (code === 95 || code === 96 || code === 99) return "thunderstorm"
return "cloud"
}
// QtObject has no default property, so these are attached via property
// assignment rather than as plain child elements (same as Colors.qml's
// FileView and SystemUpdates.qml's Process/Timer).
// Read once at startup; onLoaded/onLoadFailed (below) decide whether a
// network lookup is still needed.
readonly property FileView _locationCache: FileView {
path: Quickshell.env("HOME") + "/.cache/quickshell/weather-location.json"
onLoaded: {
try {
const data = JSON.parse(text())
const lat = parseFloat(data.latitude)
const lon = parseFloat(data.longitude)
if (!isNaN(lat) && !isNaN(lon)) {
root.latitude = lat
root.longitude = lon
root.locationName = data.name || ""
root.hasLocation = true
root.locating = false
root.refresh()
return
}
} catch (e) {
// fall through to a fresh lookup below
}
root.locate()
}
onLoadFailed: root.locate()
}
readonly property Process _locateProc: Process {
command: ["curl", "-s", "--max-time", "6", "https://ipwho.is/"]
stdout: StdioCollector {
id: locateCollector
onStreamFinished: {
try {
const data = JSON.parse(locateCollector.text)
const lat = parseFloat(data.latitude)
const lon = parseFloat(data.longitude)
root.hasLocation = data.success !== false && !isNaN(lat) && !isNaN(lon)
if (root.hasLocation) {
root.latitude = lat
root.longitude = lon
root.locationName = data.city || data.region || data.country || ""
root.saveLocation()
}
} catch (e) {
console.warn("Weather: locate parse failed:", e)
root.hasLocation = false
}
root.locating = false
if (root.hasLocation) root.refresh()
}
}
}
readonly property Process _weatherProc: Process {
stdout: StdioCollector {
id: weatherCollector
onStreamFinished: {
try {
const data = JSON.parse(weatherCollector.text)
const current = data.current || {}
root.tempC = current.temperature_2m
root.feelsLikeC = current.apparent_temperature
root.humidity = current.relative_humidity_2m
root.windKmh = current.wind_speed_10m
root.weatherCode = current.weather_code
root.isDay = current.is_day === 1
const daily = data.daily || {}
const times = daily.time || []
const days = []
// Start at 1 — index 0 is today, already shown as the
// current conditions above; this is "what's coming".
for (let i = 1; i < times.length && days.length < 3; i++) {
days.push({
date: times[i],
code: (daily.weather_code || [])[i],
maxC: (daily.temperature_2m_max || [])[i],
minC: (daily.temperature_2m_min || [])[i]
})
}
root.forecast = days
} catch (e) {
console.warn("Weather: failed to parse Open-Meteo response:", e)
}
root.loading = false
}
}
}
readonly property Process _searchProc: Process {
stdout: StdioCollector {
id: searchCollector
onStreamFinished: {
try {
const data = JSON.parse(searchCollector.text)
const results = data.results || []
root.searchResults = results.filter(function(r) {
return r && r.name && r.latitude !== undefined && r.longitude !== undefined
}).map(function(r) {
return {
name: r.name,
description: [r.admin1, r.country].filter(function(p) { return !!p }).join(", "),
latitude: r.latitude,
longitude: r.longitude
}
})
} catch (e) {
root.searchResults = []
}
root.searching = false
}
}
}
readonly property Timer _timer: Timer {
interval: root.refreshIntervalMs
running: true
repeat: true
onTriggered: root.refresh()
}
}