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107 lines
4.2 KiB
Swift
107 lines
4.2 KiB
Swift
//
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// LocalWeatherConditions.swift
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// Meshtastic
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//
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// Created by Garth Vander Houwen on 7/9/24.
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//
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import SwiftUI
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import MapKit
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import WeatherKit
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import OSLog
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struct LocalWeatherConditions: View {
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private let gridItemLayout = Array(repeating: GridItem(.flexible(), spacing: 10), count: 2)
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@State var location: CLLocation?
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/// Weather
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/// The current weather condition for the city.
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@State private var condition: WeatherCondition?
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@State private var temperature: String = ""
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@State private var dewPoint: String = ""
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@State private var humidity: Int?
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@State private var pressure: Measurement<UnitPressure>?
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@State private var windSpeed: String = ""
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@State private var windGust: String = ""
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@State private var windDirection: Measurement<UnitAngle>?
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@State private var windCompassDirection: String = ""
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@State private var symbolName: String = "cloud.fill"
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@State private var attributionLink: URL?
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@State private var attributionLogo: URL?
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@Environment(\.colorScheme) var colorScheme: ColorScheme
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var body: some View {
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if location != nil {
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VStack {
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LazyVGrid(columns: gridItemLayout) {
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WeatherConditionsCompactWidget(temperature: temperature, symbolName: symbolName, description: condition?.description.uppercased() ?? "??")
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HumidityCompactWidget(humidity: humidity ?? 0, dewPoint: dewPoint)
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PressureCompactWidget(pressure: String(pressure?.value ?? 0.0 / 100), unit: pressure?.unit.symbol ?? "??", low: pressure?.value ?? 0.0 <= 1009.144)
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WindCompactWidget(speed: windSpeed, gust: windGust, direction: windCompassDirection)
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}
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}
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.padding(.top)
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.task {
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do {
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if location != nil {
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let weather = try await WeatherService.shared.weather(for: location!)
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let numFormatter = NumberFormatter()
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let measurementFormatter = MeasurementFormatter()
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numFormatter.maximumFractionDigits = 0
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measurementFormatter.numberFormatter = numFormatter
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measurementFormatter.unitStyle = .short
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measurementFormatter.locale = Locale.current
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condition = weather.currentWeather.condition
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temperature = measurementFormatter.string(from: weather.currentWeather.temperature)
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dewPoint = measurementFormatter.string(from: weather.currentWeather.dewPoint)
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humidity = Int(weather.currentWeather.humidity * 100)
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pressure = weather.currentWeather.pressure
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windSpeed = measurementFormatter.string(from: weather.currentWeather.wind.speed)
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windGust = measurementFormatter.string(from: weather.currentWeather.wind.gust ?? Measurement(value: 0.0, unit: weather.currentWeather.wind.gust!.unit))
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windDirection = weather.currentWeather.wind.direction
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windCompassDirection = weather.currentWeather.wind.compassDirection.description
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symbolName = weather.currentWeather.symbolName
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let attribution = try await WeatherService.shared.attribution
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attributionLink = attribution.legalPageURL
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attributionLogo = colorScheme == .light ? attribution.combinedMarkLightURL : attribution.combinedMarkDarkURL
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}
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} catch {
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Logger.services.error("Could not gather weather information: \(error.localizedDescription, privacy: .public)")
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condition = .clear
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symbolName = "cloud.fill"
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}
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}
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VStack {
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HStack {
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AsyncImage(url: attributionLogo) { image in
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image
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.resizable()
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.scaledToFit()
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} placeholder: {
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ProgressView()
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.controlSize(.mini)
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}
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.frame(height: 10)
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Link("Other data sources", destination: attributionLink ?? URL(string: "https://weather-data.apple.com/legal-attribution.html")!)
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.font(.caption2)
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}
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.padding(2)
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}
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}
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}
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}
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/// Magnus Formula
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func calculateDewPoint(temp: Float, relativeHumidity: Float) -> Double {
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let a: Float = 17.27
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let b: Float = 237.7
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let alpha = ((a * temp) / (b + temp)) + log(relativeHumidity / 100.0)
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let dewPoint = (b * alpha) / (a - alpha)
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let dewPointUnit = Measurement<UnitTemperature>(value: Double(dewPoint), unit: .celsius)
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let locale = NSLocale.current as NSLocale
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let localeUnit = locale.object(forKey: NSLocale.Key(rawValue: "kCFLocaleTemperatureUnitKey"))
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var format: UnitTemperature = .celsius
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if localeUnit! as? String == "Fahrenheit" {
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format = .fahrenheit
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}
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return dewPointUnit.converted(to: format).value
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}
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