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// |
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// ChargerStandbyPowerWizardView.swift |
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// USB Meter |
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// |
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// Created by Codex on 13/04/2026. |
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// |
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import SwiftUI |
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import UniformTypeIdentifiers |
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struct ChargerStandbyPowerWizardView: View {
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@EnvironmentObject private var appData: AppData |
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@State private var chargerLibraryVisibility = false |
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@State private var discardConfirmationVisibility = false |
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@State private var selectedMeterMACAddress: String? |
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@State private var selectedChargerID: UUID? |
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let preferredMeterMACAddress: String? |
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let preferredChargerID: UUID? |
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let locksChargerSelection: Bool |
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init( |
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preferredMeterMACAddress: String? = nil, |
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preferredChargerID: UUID? = nil, |
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locksChargerSelection: Bool = false |
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) {
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self.preferredMeterMACAddress = preferredMeterMACAddress |
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self.preferredChargerID = preferredChargerID |
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self.locksChargerSelection = locksChargerSelection |
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_selectedMeterMACAddress = State(initialValue: nil) |
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_selectedChargerID = State(initialValue: preferredChargerID) |
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} |
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var body: some View {
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ScrollView {
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VStack(spacing: 18) {
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if let session = activeSession {
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activeMeasurementCard(session) |
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liveSessionCard(session) |
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} else {
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newMeasurementWizardCard |
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} |
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} |
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.padding() |
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} |
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.background( |
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LinearGradient( |
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colors: [.orange.opacity(0.16), Color.clear], |
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startPoint: .topLeading, |
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endPoint: .bottomTrailing |
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) |
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.ignoresSafeArea() |
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) |
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.navigationTitle(navigationTitleText) |
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.navigationBarTitleDisplayMode(.inline) |
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.sheet(isPresented: $chargerLibraryVisibility) {
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ChargedDeviceLibrarySheetView( |
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meterTint: selectedMeter?.color ?? .orange, |
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mode: .charger |
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) |
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.environmentObject(appData) |
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} |
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.confirmationDialog( |
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"Discard the current standby measurement?", |
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isPresented: $discardConfirmationVisibility, |
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titleVisibility: .visible |
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) {
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Button("Discard", role: .destructive) {
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if let activeSession {
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_ = appData.finishChargerStandbyMeasurement(for: activeSession.meterMACAddress, save: false) |
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} |
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} |
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Button("Cancel", role: .cancel) {}
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} message: {
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Text("The current sample set will be removed and nothing will be saved for this charger.")
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} |
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} |
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private var liveMeterSummaries: [AppData.MeterSummary] {
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appData.meterSummaries.filter { $0.meter != nil }
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} |
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private var availableChargers: [ChargedDeviceSummary] {
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appData.chargerSummaries |
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} |
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private var activeSession: ChargerStandbyPowerMonitorSession? {
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let candidateMACAddresses = [ |
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selectedMeterMACAddress ?? "", |
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preferredMeterMACAddress ?? "" |
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] |
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.filter { $0.isEmpty == false }
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for macAddress in candidateMACAddresses {
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if let session = appData.chargerStandbyMeasurementSession(for: macAddress) {
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return session |
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} |
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} |
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for meterSummary in liveMeterSummaries {
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if let session = appData.chargerStandbyMeasurementSession(for: meterSummary.macAddress) {
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return session |
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} |
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} |
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return nil |
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} |
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private var suggestedMeterSummary: AppData.MeterSummary? {
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if let preferredMeterMACAddress {
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return liveMeterSummaries.first(where: { $0.macAddress == preferredMeterMACAddress })
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} |
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return liveMeterSummaries.count == 1 ? liveMeterSummaries.first : nil |
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} |
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private var selectedMeterSummary: AppData.MeterSummary? {
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if let activeSession {
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return liveMeterSummaries.first(where: { $0.macAddress == activeSession.meterMACAddress })
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} |
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guard let selectedMeterMACAddress else {
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return nil |
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} |
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return liveMeterSummaries.first(where: { $0.macAddress == selectedMeterMACAddress })
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} |
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private var selectedMeter: Meter? {
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selectedMeterSummary?.meter |
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} |
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private var isChargerSelectionLocked: Bool {
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locksChargerSelection || preferredChargerID != nil |
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} |
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private var meterSelectionBinding: Binding<String?> {
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Binding( |
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get: { selectedMeterMACAddress },
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set: { selectedMeterMACAddress = $0 }
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) |
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} |
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private var selectedCharger: ChargedDeviceSummary? {
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if let activeSession {
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return appData.chargedDeviceSummary(id: activeSession.chargerID) |
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} |
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guard let selectedChargerID else {
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return nil |
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} |
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return appData.chargedDeviceSummary(id: selectedChargerID) |
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} |
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private var chargerSelectionBinding: Binding<UUID?> {
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Binding( |
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get: { selectedChargerID },
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set: { selectedChargerID = $0 }
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) |
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} |
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private var preferredChargerSummary: ChargedDeviceSummary? {
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guard let preferredChargerID else {
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return nil |
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} |
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return appData.chargedDeviceSummary(id: preferredChargerID) |
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} |
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private var navigationTitleText: String {
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"New Standby Consumption Measurement" |
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} |
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private var wizardCardTitle: String {
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if let selectedMeterSummary {
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return selectedMeterSummary.displayName |
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} |
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if let suggestedMeterSummary {
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return suggestedMeterSummary.displayName |
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} |
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return "Use Meter" |
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} |
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private var newMeasurementWizardCard: some View {
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MeterInfoCardView( |
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title: wizardCardTitle, |
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tint: .orange |
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) {
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if liveMeterSummaries.isEmpty {
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Text("Connect a live meter first. Standby measurement uses a live feed, so meter selection happens here in the wizard.")
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.font(.footnote) |
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.foregroundColor(.secondary) |
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.frame(maxWidth: .infinity, alignment: .leading) |
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} else {
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VStack(alignment: .leading, spacing: 12) {
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if isChargerSelectionLocked == false {
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HStack(spacing: 8) {
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Text("Charger")
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.font(.subheadline.weight(.semibold)) |
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ContextInfoButton( |
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title: "Charger", |
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message: "Choose the charger whose standby consumption you want to measure in this run." |
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) |
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} |
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if availableChargers.isEmpty {
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Text("No charger available yet. Open the charger library to create one first.")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} else {
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Picker("Charger", selection: chargerSelectionBinding) {
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Text("Select Charger").tag(Optional<UUID>.none)
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ForEach(availableChargers) { charger in
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Text(charger.name).tag(Optional(charger.id)) |
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} |
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} |
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.pickerStyle(.menu) |
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} |
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} |
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HStack(spacing: 8) {
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Text("Use Meter")
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.font(.subheadline.weight(.semibold)) |
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ContextInfoButton( |
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title: "Use Meter", |
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message: "Choose the live meter explicitly. Standby consumption can vary with the upstream source or when the charger is connected to a computer, so re-run after setup changes." |
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) |
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} |
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Picker("Use Meter", selection: meterSelectionBinding) {
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Text("Select Meter").tag(Optional<String>.none)
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ForEach(liveMeterSummaries) { meterSummary in
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Text(meterSummary.displayName).tag(Optional(meterSummary.macAddress)) |
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} |
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} |
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.pickerStyle(.menu) |
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.disabled(activeSession != nil) |
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if activeSession == nil, let suggestedMeterSummary, selectedMeterSummary == nil {
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Text("Suggested from the current context: \(suggestedMeterSummary.displayName). Select it explicitly if this is the meter you want to use.")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} |
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HStack(spacing: 12) {
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if isChargerSelectionLocked == false {
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Button("Manage Charger Library") {
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chargerLibraryVisibility = true |
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} |
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.disabled(selectedMeter == nil) |
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} |
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Button("Start Measurement") {
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startMeasurement() |
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} |
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.disabled(selectedCharger == nil || selectedMeter == nil) |
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} |
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.buttonStyle(.borderedProminent) |
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} |
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} |
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if selectedMeter == nil {
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Text("Choose the live meter explicitly before starting. The wizard no longer auto-confirms a suggested meter.")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} else if activeSession == nil, selectedCharger == nil {
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Text("Select the charger you want to measure, then start the run.")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} else if activeSession == nil, selectedMeter?.operationalState != .dataIsAvailable {
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Text("The wizard can start now, but samples will only be captured while live meter data is available.")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} else if let activeSession {
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Text( |
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"\(activeSession.readinessDescription) • \(formattedDuration(Date().timeIntervalSince(activeSession.startedAt))) • \(activeSession.sampleCount) samples" |
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) |
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.font(.caption) |
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.foregroundColor(.secondary) |
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} |
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} |
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} |
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private func activeMeasurementCard(_ session: ChargerStandbyPowerMonitorSession) -> some View {
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MeterInfoCardView( |
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title: "Measurement Running", |
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infoMessage: "The run keeps collecting samples while this meter stays live. Save when you are happy with the sample set, or discard to cancel it.", |
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tint: .orange |
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) {
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MeterInfoRowView(label: "Meter", value: selectedMeterSummary?.displayName ?? session.meterMACAddress) |
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MeterInfoRowView(label: "Charger", value: selectedCharger?.name ?? "Selected charger") |
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MeterInfoRowView(label: "Status", value: session.readinessDescription) |
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MeterInfoRowView(label: "Samples", value: "\(session.sampleCount)") |
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HStack(spacing: 12) {
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Button("Save Result") {
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_ = appData.finishChargerStandbyMeasurement(for: session.meterMACAddress, save: true) |
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} |
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.disabled(session.hasSamples == false) |
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Button("Discard") {
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discardConfirmationVisibility = true |
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} |
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.foregroundColor(.red) |
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} |
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.buttonStyle(.borderedProminent) |
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} |
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} |
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private func liveSessionCard(_ session: ChargerStandbyPowerMonitorSession) -> some View {
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VStack(spacing: 18) {
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if let statistics = session.statistics {
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stabilityCard( |
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isStable: statistics.isStable, |
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averagePowerWatts: statistics.averagePowerWatts, |
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stabilityDeltaWatts: statistics.stabilityDeltaWatts, |
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stabilityToleranceWatts: statistics.stabilityToleranceWatts, |
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sampleCount: statistics.sampleCount |
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) |
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projectionCard( |
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averagePowerWatts: statistics.averagePowerWatts, |
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projectedDailyEnergyWh: statistics.projectedDailyEnergyWh, |
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projectedWeeklyEnergyWh: statistics.projectedWeeklyEnergyWh, |
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projectedMonthlyEnergyWh: statistics.projectedMonthlyEnergyWh, |
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projectedYearlyEnergyWh: statistics.projectedYearlyEnergyWh |
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) |
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StandbyPowerDistributionCard( |
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histogram: statistics.histogram, |
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averagePowerWatts: statistics.averagePowerWatts, |
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standardDeviationPowerWatts: statistics.standardDeviationPowerWatts, |
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tint: .orange |
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) |
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| 338 | ||
| 339 |
statisticsCard( |
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averagePowerWatts: statistics.averagePowerWatts, |
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medianPowerWatts: statistics.medianPowerWatts, |
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minimumPowerWatts: statistics.minimumPowerWatts, |
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maximumPowerWatts: statistics.maximumPowerWatts, |
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standardDeviationPowerWatts: statistics.standardDeviationPowerWatts, |
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coefficientOfVariation: statistics.coefficientOfVariation, |
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averageCurrentAmps: statistics.averageCurrentAmps, |
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averageVoltageVolts: statistics.averageVoltageVolts |
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) |
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} else {
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MeterInfoCardView(title: "Live Stats", tint: .orange) {
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Text("Waiting for the first valid power samples from the meter.")
|
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.font(.footnote) |
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.foregroundColor(.secondary) |
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} |
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} |
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} |
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} |
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| 358 | ||
| 359 |
private func stabilityCard( |
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isStable: Bool, |
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averagePowerWatts: Double, |
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stabilityDeltaWatts: Double, |
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stabilityToleranceWatts: Double, |
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sampleCount: Int, |
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subtitle: String? = nil |
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| 366 |
) -> some View {
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| 367 |
VStack(alignment: .leading, spacing: 10) {
|
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| 368 |
HStack {
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VStack(alignment: .leading, spacing: 4) {
|
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Text(isStable ? "Enough Samples" : "Still Settling") |
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.font(.headline) |
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Text(subtitle ?? (isStable ? "The running average has stabilised." : "The wizard is still watching the average drift.")) |
|
| 373 |
.font(.caption) |
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.foregroundColor(.secondary) |
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} |
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| 376 | ||
| 377 |
Spacer() |
|
| 378 | ||
| 379 |
Text(isStable ? "Ready" : "Live") |
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| 380 |
.font(.caption.weight(.semibold)) |
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| 381 |
.padding(.horizontal, 10) |
|
| 382 |
.padding(.vertical, 6) |
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| 383 |
.foregroundColor(isStable ? .green : .orange) |
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.meterCard( |
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tint: isStable ? .green : .orange, |
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fillOpacity: 0.10, |
|
| 387 |
strokeOpacity: 0.16, |
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cornerRadius: 999 |
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| 389 |
) |
|
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} |
|
| 391 | ||
| 392 |
Text("\(averagePowerWatts.format(decimalDigits: 3)) W")
|
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| 393 |
.font(.system(.largeTitle, design: .rounded).weight(.bold)) |
|
| 394 |
.monospacedDigit() |
|
| 395 | ||
| 396 |
Text( |
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| 397 |
"Recent drift: \((stabilityDeltaWatts * 1000).format(decimalDigits: 2)) mW, tolerance \((stabilityToleranceWatts * 1000).format(decimalDigits: 2)) mW over \(sampleCount) samples." |
|
| 398 |
) |
|
| 399 |
.font(.footnote) |
|
| 400 |
.foregroundColor(.secondary) |
|
| 401 |
} |
|
| 402 |
.frame(maxWidth: .infinity, alignment: .leading) |
|
| 403 |
.padding(18) |
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.meterCard(tint: isStable ? .green : .orange, fillOpacity: 0.18, strokeOpacity: 0.24) |
|
| 405 |
} |
|
| 406 | ||
| 407 |
private func projectionCard( |
|
| 408 |
averagePowerWatts: Double, |
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| 409 |
projectedDailyEnergyWh: Double, |
|
| 410 |
projectedWeeklyEnergyWh: Double, |
|
| 411 |
projectedMonthlyEnergyWh: Double, |
|
| 412 |
projectedYearlyEnergyWh: Double |
|
| 413 |
) -> some View {
|
|
| 414 |
MeterInfoCardView( |
|
| 415 |
title: "Consumption Projection", |
|
| 416 |
infoMessage: "These projections extrapolate only from the measured standby average. They do not say anything about charger behaviour under load.", |
|
| 417 |
tint: .teal |
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| 418 |
) {
|
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| 419 |
MeterInfoRowView(label: "Average Power", value: "\(averagePowerWatts.format(decimalDigits: 3)) W") |
|
| 420 |
MeterInfoRowView(label: "24 Hours", value: standbyEnergyLabel(projectedDailyEnergyWh)) |
|
| 421 |
MeterInfoRowView(label: "7 Days", value: standbyEnergyLabel(projectedWeeklyEnergyWh)) |
|
| 422 |
MeterInfoRowView(label: "30 Days", value: standbyEnergyLabel(projectedMonthlyEnergyWh)) |
|
| 423 |
MeterInfoRowView(label: "1 Year", value: standbyEnergyLabel(projectedYearlyEnergyWh)) |
|
| 424 |
} |
|
| 425 |
} |
|
| 426 | ||
| 427 |
private func statisticsCard( |
|
| 428 |
averagePowerWatts: Double, |
|
| 429 |
medianPowerWatts: Double, |
|
| 430 |
minimumPowerWatts: Double, |
|
| 431 |
maximumPowerWatts: Double, |
|
| 432 |
standardDeviationPowerWatts: Double, |
|
| 433 |
coefficientOfVariation: Double, |
|
| 434 |
averageCurrentAmps: Double, |
|
| 435 |
averageVoltageVolts: Double |
|
| 436 |
) -> some View {
|
|
| 437 |
MeterInfoCardView(title: "Interesting Stats", tint: .indigo) {
|
|
| 438 |
MeterInfoRowView(label: "Median", value: "\(medianPowerWatts.format(decimalDigits: 3)) W") |
|
| 439 |
MeterInfoRowView(label: "Minimum", value: "\(minimumPowerWatts.format(decimalDigits: 3)) W") |
|
| 440 |
MeterInfoRowView(label: "Maximum", value: "\(maximumPowerWatts.format(decimalDigits: 3)) W") |
|
| 441 |
MeterInfoRowView(label: "Spread σ", value: "\(standardDeviationPowerWatts.format(decimalDigits: 4)) W") |
|
| 442 |
MeterInfoRowView(label: "Variation", value: "\(Int((coefficientOfVariation * 100).rounded()))%") |
|
| 443 |
MeterInfoRowView(label: "Mean Current", value: "\(averageCurrentAmps.format(decimalDigits: 3)) A") |
|
| 444 |
MeterInfoRowView(label: "Mean Voltage", value: "\(averageVoltageVolts.format(decimalDigits: 3)) V") |
|
| 445 |
MeterInfoRowView(label: "Power Density", value: "\(averagePowerWatts.format(decimalDigits: 3)) W steady") |
|
| 446 |
} |
|
| 447 |
} |
|
| 448 | ||
| 449 |
private func startMeasurement() {
|
|
| 450 |
guard let selectedCharger, let selectedMeter else {
|
|
| 451 |
return |
|
| 452 |
} |
|
| 453 | ||
| 454 |
_ = appData.startChargerStandbyMeasurement(for: selectedCharger.id, on: selectedMeter) |
|
| 455 |
} |
|
| 456 | ||
| 457 |
private func standbyEnergyLabel(_ wattHours: Double) -> String {
|
|
| 458 |
if wattHours >= 1000 {
|
|
| 459 |
return "\((wattHours / 1000).format(decimalDigits: 3)) kWh" |
|
| 460 |
} |
|
| 461 |
return "\(wattHours.format(decimalDigits: 2)) Wh" |
|
| 462 |
} |
|
| 463 | ||
| 464 |
private func formattedDuration(_ duration: TimeInterval) -> String {
|
|
| 465 |
let formatter = DateComponentsFormatter() |
|
| 466 |
formatter.allowedUnits = duration >= 3600 ? [.hour, .minute, .second] : [.minute, .second] |
|
| 467 |
formatter.unitsStyle = .abbreviated |
|
| 468 |
formatter.zeroFormattingBehavior = .pad |
|
| 469 |
return formatter.string(from: max(duration, 0)) ?? "0s" |
|
| 470 |
} |
|
| 471 | ||
| 472 |
} |
|
| 473 | ||
| 474 |
// MARK: - Distribution card with resolution picker and CSV export |
|
| 475 | ||
| 476 |
private struct StandbyPowerDistributionCard: View {
|
|
| 477 |
let histogram: [ChargerStandbyPowerDistributionBin] |
|
| 478 |
let averagePowerWatts: Double |
|
| 479 |
let standardDeviationPowerWatts: Double |
|
| 480 |
let tint: Color |
|
| 481 |
var showExport: Bool = false |
|
| 482 | ||
| 483 |
private func resolution(for width: CGFloat) -> HistogramResolution {
|
|
| 484 |
if width >= 600 { return .x4 }
|
|
| 485 |
if width >= 360 { return .x2 }
|
|
| 486 |
return .x1 |
|
| 487 |
} |
|
| 488 | ||
| 489 |
private func displayedHistogram(width: CGFloat) -> [ChargerStandbyPowerDistributionBin] {
|
|
| 490 |
let factor = HistogramResolution.x4.rawValue / resolution(for: width).rawValue |
|
| 491 |
return ChargerStandbyPowerMeasurementAnalyzer.downsample(histogram, factor: factor) |
|
| 492 |
} |
|
| 493 | ||
| 494 |
private var csvString: String {
|
|
| 495 |
var lines = ["Bin,Lower Bound (W),Upper Bound (W),Count,Relative Frequency (%)"] |
|
| 496 |
for bin in histogram {
|
|
| 497 |
lines.append( |
|
| 498 |
"\(bin.index + 1)," |
|
| 499 |
+ String(format: "%.6f", bin.lowerBoundWatts) + "," |
|
| 500 |
+ String(format: "%.6f", bin.upperBoundWatts) + "," |
|
| 501 |
+ "\(bin.count)," |
|
| 502 |
+ String(format: "%.4f", bin.relativeFrequency * 100) |
|
| 503 |
) |
|
| 504 |
} |
|
| 505 |
return lines.joined(separator: "\n") |
|
| 506 |
} |
|
| 507 | ||
| 508 |
var body: some View {
|
|
| 509 |
MeterInfoCardView( |
|
| 510 |
title: "Value Spread", |
|
| 511 |
infoMessage: "Bars show how often each power interval appeared. The curve overlays a normal approximation around the observed mean and standard deviation.", |
|
| 512 |
tint: tint, |
|
| 513 |
trailingActions: {
|
|
| 514 |
if showExport {
|
|
| 515 |
if #available(iOS 16, *) {
|
|
| 516 |
ShareLink( |
|
| 517 |
item: DistributionCSVExport(content: csvString), |
|
| 518 |
preview: SharePreview("distribution.csv")
|
|
| 519 |
) {
|
|
| 520 |
Image(systemName: "square.and.arrow.up") |
|
| 521 |
.font(.subheadline.weight(.medium)) |
|
| 522 |
.foregroundStyle(.secondary) |
|
| 523 |
} |
|
| 524 |
} else {
|
|
| 525 |
Button {
|
|
| 526 |
exportCSVLegacy(csvString) |
|
| 527 |
} label: {
|
|
| 528 |
Image(systemName: "square.and.arrow.up") |
|
| 529 |
.font(.subheadline.weight(.medium)) |
|
| 530 |
.foregroundStyle(.secondary) |
|
| 531 |
} |
|
| 532 |
} |
|
| 533 |
} |
|
| 534 |
} |
|
| 535 |
) {
|
|
| 536 |
GeometryReader { proxy in
|
|
| 537 |
let bins = displayedHistogram(width: proxy.size.width) |
|
| 538 |
StandbyPowerHistogramView( |
|
| 539 |
histogram: bins, |
|
| 540 |
averagePowerWatts: averagePowerWatts, |
|
| 541 |
standardDeviationPowerWatts: standardDeviationPowerWatts, |
|
| 542 |
tint: tint |
|
| 543 |
) |
|
| 544 | ||
| 545 |
if let firstBin = bins.first, let lastBin = bins.last {
|
|
| 546 |
let midpointWatts = (firstBin.lowerBoundWatts + lastBin.upperBoundWatts) / 2 |
|
| 547 |
VStack {
|
|
| 548 |
Spacer() |
|
| 549 |
HStack {
|
|
| 550 |
Text("\(firstBin.lowerBoundWatts.format(decimalDigits: 3)) W")
|
|
| 551 |
Spacer() |
|
| 552 |
Text("\(midpointWatts.format(decimalDigits: 3)) W")
|
|
| 553 |
Spacer() |
|
| 554 |
Text("\(lastBin.upperBoundWatts.format(decimalDigits: 3)) W")
|
|
| 555 |
} |
|
| 556 |
.font(.caption) |
|
| 557 |
.foregroundColor(.secondary) |
|
| 558 |
.monospacedDigit() |
|
| 559 |
} |
|
| 560 |
} |
|
| 561 |
} |
|
| 562 |
.frame(height: 240) |
|
| 563 |
} |
|
| 564 |
} |
|
| 565 | ||
| 566 |
private func exportCSVLegacy(_ csv: String) {
|
|
| 567 |
guard let windowScene = UIApplication.shared.connectedScenes |
|
| 568 |
.compactMap({ $0 as? UIWindowScene }).first,
|
|
| 569 |
let rootVC = windowScene.windows.first?.rootViewController else { return }
|
|
| 570 |
let activityVC = UIActivityViewController( |
|
| 571 |
activityItems: [csv], |
|
| 572 |
applicationActivities: nil |
|
| 573 |
) |
|
| 574 |
rootVC.present(activityVC, animated: true) |
|
| 575 |
} |
|
| 576 |
} |
|
| 577 | ||
| 578 |
@available(iOS 16, *) |
|
| 579 |
struct DistributionCSVExport: Transferable {
|
|
| 580 |
let content: String |
|
| 581 | ||
| 582 |
static var transferRepresentation: some TransferRepresentation {
|
|
| 583 |
DataRepresentation(exportedContentType: .commaSeparatedText) { export in
|
|
| 584 |
Data(export.content.utf8) |
|
| 585 |
} |
|
| 586 |
.suggestedFileName("distribution")
|
|
| 587 |
} |
|
| 588 |
} |
|
| 589 | ||
| 590 |
// MARK: - Histogram bars + Gaussian curve |
|
| 591 | ||
| 592 |
private struct StandbyPowerHistogramView: View {
|
|
| 593 |
let histogram: [ChargerStandbyPowerDistributionBin] |
|
| 594 |
let averagePowerWatts: Double |
|
| 595 |
let standardDeviationPowerWatts: Double |
|
| 596 |
let tint: Color |
|
| 597 | ||
| 598 |
var body: some View {
|
|
| 599 |
GeometryReader { proxy in
|
|
| 600 |
let maxCount = max(Double(histogram.map(\.count).max() ?? 1), 1) |
|
| 601 | ||
| 602 |
ZStack {
|
|
| 603 |
HStack(alignment: .bottom, spacing: 6) {
|
|
| 604 |
ForEach(histogram) { bin in
|
|
| 605 |
RoundedRectangle(cornerRadius: 8, style: .continuous) |
|
| 606 |
.fill(tint.opacity(0.24)) |
|
| 607 |
.overlay( |
|
| 608 |
RoundedRectangle(cornerRadius: 8, style: .continuous) |
|
| 609 |
.stroke(tint.opacity(0.22), lineWidth: 1) |
|
| 610 |
) |
|
| 611 |
.frame(height: max(10, (Double(bin.count) / maxCount) * proxy.size.height)) |
|
| 612 |
} |
|
| 613 |
} |
|
| 614 |
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .bottom) |
|
| 615 | ||
| 616 |
gaussianCurve(in: proxy.size) |
|
| 617 |
.stroke(tint, style: StrokeStyle(lineWidth: 2.5, lineCap: .round, lineJoin: .round)) |
|
| 618 | ||
| 619 |
meanMarker(in: proxy.size) |
|
| 620 |
.stroke(tint.opacity(0.9), style: StrokeStyle(lineWidth: 1.5, dash: [6, 4])) |
|
| 621 |
} |
|
| 622 |
} |
|
| 623 |
} |
|
| 624 | ||
| 625 |
private func gaussianCurve(in size: CGSize) -> Path {
|
|
| 626 |
guard histogram.count > 1, |
|
| 627 |
standardDeviationPowerWatts > 0, |
|
| 628 |
let firstBin = histogram.first, |
|
| 629 |
let lastBin = histogram.last else {
|
|
| 630 |
return Path() |
|
| 631 |
} |
|
| 632 | ||
| 633 |
let minimum = firstBin.lowerBoundWatts |
|
| 634 |
let maximum = lastBin.upperBoundWatts |
|
| 635 |
let span = max(maximum - minimum, 0.000_001) |
|
| 636 |
let sampleCount = 48 |
|
| 637 |
let peakDensity = 1 / (standardDeviationPowerWatts * sqrt(2 * .pi)) |
|
| 638 | ||
| 639 |
return Path { path in
|
|
| 640 |
for index in 0...sampleCount {
|
|
| 641 |
let progress = Double(index) / Double(sampleCount) |
|
| 642 |
let value = minimum + (span * progress) |
|
| 643 |
let zScore = (value - averagePowerWatts) / standardDeviationPowerWatts |
|
| 644 |
let density = exp(-0.5 * zScore * zScore) / (standardDeviationPowerWatts * sqrt(2 * .pi)) |
|
| 645 |
let normalizedHeight = density / peakDensity |
|
| 646 | ||
| 647 |
let x = progress * size.width |
|
| 648 |
let y = size.height - (normalizedHeight * (Double(size.height) * 0.92)) |
|
| 649 |
let point = CGPoint(x: x, y: y) |
|
| 650 | ||
| 651 |
if index == 0 {
|
|
| 652 |
path.move(to: point) |
|
| 653 |
} else {
|
|
| 654 |
path.addLine(to: point) |
|
| 655 |
} |
|
| 656 |
} |
|
| 657 |
} |
|
| 658 |
} |
|
| 659 | ||
| 660 |
private func meanMarker(in size: CGSize) -> Path {
|
|
| 661 |
guard let firstBin = histogram.first, let lastBin = histogram.last else {
|
|
| 662 |
return Path() |
|
| 663 |
} |
|
| 664 | ||
| 665 |
let minimum = firstBin.lowerBoundWatts |
|
| 666 |
let maximum = lastBin.upperBoundWatts |
|
| 667 |
let span = max(maximum - minimum, 0.000_001) |
|
| 668 |
let normalizedX = min(max((averagePowerWatts - minimum) / span, 0), 1) |
|
| 669 |
let x = normalizedX * size.width |
|
| 670 | ||
| 671 |
return Path { path in
|
|
| 672 |
path.move(to: CGPoint(x: x, y: 0)) |
|
| 673 |
path.addLine(to: CGPoint(x: x, y: size.height)) |
|
| 674 |
} |
|
| 675 |
} |
|
| 676 |
} |
|
| 677 | ||
| 678 |
struct ChargerStandbyPowerMeasurementsView: View {
|
|
| 679 |
@EnvironmentObject private var appData: AppData |
|
| 680 |
@State private var selectedMeasurementIDs = Set<UUID>() |
|
| 681 |
@State private var editMode: EditMode = .inactive |
|
| 682 | ||
| 683 |
let chargerID: UUID |
|
| 684 | ||
| 685 |
var body: some View {
|
|
| 686 |
Group {
|
|
| 687 |
if let charger = appData.chargedDeviceSummary(id: chargerID) {
|
|
| 688 |
measurementsList(for: charger) |
|
| 689 |
} else {
|
|
| 690 |
Text("This charger is no longer available.")
|
|
| 691 |
.foregroundColor(.secondary) |
|
| 692 |
.navigationTitle("Saved Measurements")
|
|
| 693 |
.navigationBarTitleDisplayMode(.inline) |
|
| 694 |
} |
|
| 695 |
} |
|
| 696 |
} |
|
| 697 | ||
| 698 |
@ViewBuilder |
|
| 699 |
private func measurementsList(for charger: ChargedDeviceSummary) -> some View {
|
|
| 700 |
let content = List(selection: $selectedMeasurementIDs) {
|
|
| 701 |
if charger.standbyPowerMeasurements.isEmpty {
|
|
| 702 |
Text("No standby measurements saved yet.")
|
|
| 703 |
.foregroundColor(.secondary) |
|
| 704 |
} else {
|
|
| 705 |
ForEach(charger.standbyPowerMeasurements) { measurement in
|
|
| 706 |
NavigationLink( |
|
| 707 |
destination: ChargerStandbyPowerMeasurementDetailView( |
|
| 708 |
chargerID: charger.id, |
|
| 709 |
measurementID: measurement.id |
|
| 710 |
) |
|
| 711 |
) {
|
|
| 712 |
VStack(alignment: .leading, spacing: 6) {
|
|
| 713 |
HStack {
|
|
| 714 |
Text(measurement.endedAt.format()) |
|
| 715 |
.font(.subheadline.weight(.semibold)) |
|
| 716 |
Spacer() |
|
| 717 |
Text("\(measurement.averagePowerWatts.format(decimalDigits: 3)) W")
|
|
| 718 |
.font(.subheadline.weight(.bold)) |
|
| 719 |
.monospacedDigit() |
|
| 720 |
} |
|
| 721 | ||
| 722 |
Text( |
|
| 723 |
"\(formattedDuration(measurement.duration)) • \(measurement.sampleCount) samples • \(standbyEnergyLabel(measurement.projectedYearlyEnergyWh)) / year" |
|
| 724 |
) |
|
| 725 |
.font(.caption) |
|
| 726 |
.foregroundColor(.secondary) |
|
| 727 |
} |
|
| 728 |
.frame(maxWidth: .infinity, alignment: .leading) |
|
| 729 |
} |
|
| 730 |
.tag(measurement.id) |
|
| 731 |
} |
|
| 732 |
.onDelete { offsets in
|
|
| 733 |
let measurements = charger.standbyPowerMeasurements |
|
| 734 |
for index in offsets {
|
|
| 735 |
guard measurements.indices.contains(index) else { continue }
|
|
| 736 |
let measurement = measurements[index] |
|
| 737 |
_ = appData.deleteChargerStandbyMeasurement( |
|
| 738 |
id: measurement.id, |
|
| 739 |
chargerID: charger.id |
|
| 740 |
) |
|
| 741 |
} |
|
| 742 |
} |
|
| 743 |
} |
|
| 744 |
} |
|
| 745 |
.environment(\.editMode, $editMode) |
|
| 746 |
.navigationTitle("Saved Measurements")
|
|
| 747 |
.navigationBarTitleDisplayMode(.inline) |
|
| 748 |
.toolbar {
|
|
| 749 |
ToolbarItem(placement: .primaryAction) {
|
|
| 750 |
Button(editMode.isEditing ? "Done" : "Select") {
|
|
| 751 |
if editMode.isEditing {
|
|
| 752 |
editMode = .inactive |
|
| 753 |
selectedMeasurementIDs.removeAll() |
|
| 754 |
} else {
|
|
| 755 |
editMode = .active |
|
| 756 |
} |
|
| 757 |
} |
|
| 758 |
} |
|
| 759 |
} |
|
| 760 | ||
| 761 |
if selectedMeasurementIDs.isEmpty {
|
|
| 762 |
content |
|
| 763 |
} else {
|
|
| 764 |
content.toolbar {
|
|
| 765 |
ToolbarItem(placement: .destructiveAction) {
|
|
| 766 |
Button(role: .destructive) {
|
|
| 767 |
deleteMeasurements( |
|
| 768 |
ids: selectedMeasurementIDs, |
|
| 769 |
for: charger.id |
|
| 770 |
) |
|
| 771 |
} label: {
|
|
| 772 |
Image(systemName: "trash") |
|
| 773 |
} |
|
| 774 |
} |
|
| 775 |
} |
|
| 776 |
} |
|
| 777 |
} |
|
| 778 | ||
| 779 |
private func standbyEnergyLabel(_ wattHours: Double) -> String {
|
|
| 780 |
if wattHours >= 1000 {
|
|
| 781 |
return "\((wattHours / 1000).format(decimalDigits: 3)) kWh" |
|
| 782 |
} |
|
| 783 |
return "\(wattHours.format(decimalDigits: 2)) Wh" |
|
| 784 |
} |
|
| 785 | ||
| 786 |
private func formattedDuration(_ duration: TimeInterval) -> String {
|
|
| 787 |
let formatter = DateComponentsFormatter() |
|
| 788 |
formatter.allowedUnits = duration >= 3600 ? [.hour, .minute, .second] : [.minute, .second] |
|
| 789 |
formatter.unitsStyle = .abbreviated |
|
| 790 |
formatter.zeroFormattingBehavior = .pad |
|
| 791 |
return formatter.string(from: max(duration, 0)) ?? "0s" |
|
| 792 |
} |
|
| 793 | ||
| 794 |
private func deleteMeasurements(ids: Set<UUID>, for chargerID: UUID) {
|
|
| 795 |
for id in ids {
|
|
| 796 |
_ = appData.deleteChargerStandbyMeasurement(id: id, chargerID: chargerID) |
|
| 797 |
} |
|
| 798 |
selectedMeasurementIDs.removeAll() |
|
| 799 |
editMode = .inactive |
|
| 800 |
} |
|
| 801 |
} |
|
| 802 | ||
| 803 |
struct ChargerStandbyPowerMeasurementDetailView: View {
|
|
| 804 |
@EnvironmentObject private var appData: AppData |
|
| 805 |
@Environment(\.dismiss) private var dismiss |
|
| 806 | ||
| 807 |
@State private var deleteConfirmationVisibility = false |
|
| 808 | ||
| 809 |
let chargerID: UUID |
|
| 810 |
let measurementID: UUID |
|
| 811 | ||
| 812 |
var body: some View {
|
|
| 813 |
Group {
|
|
| 814 |
if let charger = appData.chargedDeviceSummary(id: chargerID), |
|
| 815 |
let measurement = charger.standbyPowerMeasurements.first(where: { $0.id == measurementID }) {
|
|
| 816 |
ScrollView {
|
|
| 817 |
VStack(spacing: 18) {
|
|
| 818 |
MeterInfoCardView(title: charger.name, tint: .orange) {
|
|
| 819 |
MeterInfoRowView(label: "Saved", value: measurement.endedAt.format()) |
|
| 820 |
MeterInfoRowView(label: "Average", value: "\(measurement.averagePowerWatts.format(decimalDigits: 3)) W") |
|
| 821 |
MeterInfoRowView(label: "Samples", value: "\(measurement.sampleCount)") |
|
| 822 |
MeterInfoRowView(label: "Duration", value: formattedDuration(measurement.duration)) |
|
| 823 |
} |
|
| 824 | ||
| 825 |
ChargerStandbyPowerMeasurementSnapshotView(measurement: measurement) |
|
| 826 |
} |
|
| 827 |
.padding() |
|
| 828 |
} |
|
| 829 |
.background( |
|
| 830 |
LinearGradient( |
|
| 831 |
colors: [.orange.opacity(0.16), Color.clear], |
|
| 832 |
startPoint: .topLeading, |
|
| 833 |
endPoint: .bottomTrailing |
|
| 834 |
) |
|
| 835 |
.ignoresSafeArea() |
|
| 836 |
) |
|
| 837 |
.navigationTitle("Measurement")
|
|
| 838 |
.navigationBarTitleDisplayMode(.inline) |
|
| 839 |
.toolbar {
|
|
| 840 |
ToolbarItem(placement: .primaryAction) {
|
|
| 841 |
Button(role: .destructive) {
|
|
| 842 |
deleteConfirmationVisibility = true |
|
| 843 |
} label: {
|
|
| 844 |
Label("Delete Measurement", systemImage: "trash")
|
|
| 845 |
} |
|
| 846 |
} |
|
| 847 |
} |
|
| 848 |
.confirmationDialog( |
|
| 849 |
"Delete this measurement?", |
|
| 850 |
isPresented: $deleteConfirmationVisibility, |
|
| 851 |
titleVisibility: .visible |
|
| 852 |
) {
|
|
| 853 |
Button("Delete", role: .destructive) {
|
|
| 854 |
let didDelete = appData.deleteChargerStandbyMeasurement( |
|
| 855 |
id: measurement.id, |
|
| 856 |
chargerID: charger.id |
|
| 857 |
) |
|
| 858 |
if didDelete {
|
|
| 859 |
dismiss() |
|
| 860 |
} |
|
| 861 |
} |
|
| 862 |
Button("Cancel", role: .cancel) {}
|
|
| 863 |
} message: {
|
|
| 864 |
Text("This removes the saved standby measurement from the charger history and iCloud sync.")
|
|
| 865 |
} |
|
| 866 |
} else {
|
|
| 867 |
Text("This measurement is no longer available.")
|
|
| 868 |
.foregroundColor(.secondary) |
|
| 869 |
.navigationTitle("Measurement")
|
|
| 870 |
.navigationBarTitleDisplayMode(.inline) |
|
| 871 |
} |
|
| 872 |
} |
|
| 873 |
} |
|
| 874 | ||
| 875 |
private func formattedDuration(_ duration: TimeInterval) -> String {
|
|
| 876 |
let formatter = DateComponentsFormatter() |
|
| 877 |
formatter.allowedUnits = duration >= 3600 ? [.hour, .minute, .second] : [.minute, .second] |
|
| 878 |
formatter.unitsStyle = .abbreviated |
|
| 879 |
formatter.zeroFormattingBehavior = .pad |
|
| 880 |
return formatter.string(from: max(duration, 0)) ?? "0s" |
|
| 881 |
} |
|
| 882 |
} |
|
| 883 | ||
| 884 |
private struct ChargerStandbyPowerMeasurementSnapshotView: View {
|
|
| 885 |
let measurement: ChargerStandbyPowerMeasurementSummary |
|
| 886 | ||
| 887 |
var body: some View {
|
|
| 888 |
VStack(spacing: 18) {
|
|
| 889 |
stabilityCard |
|
| 890 |
projectionCard |
|
| 891 |
distributionCard |
|
| 892 |
statisticsCard |
|
| 893 |
} |
|
| 894 |
} |
|
| 895 | ||
| 896 |
private var stabilityCard: some View {
|
|
| 897 |
VStack(alignment: .leading, spacing: 10) {
|
|
| 898 |
HStack {
|
|
| 899 |
VStack(alignment: .leading, spacing: 4) {
|
|
| 900 |
Text(measurement.isStable ? "Enough Samples" : "Still Settling") |
|
| 901 |
.font(.headline) |
|
| 902 |
Text("Saved \(measurement.endedAt.format())")
|
|
| 903 |
.font(.caption) |
|
| 904 |
.foregroundColor(.secondary) |
|
| 905 |
} |
|
| 906 | ||
| 907 |
Spacer() |
|
| 908 | ||
| 909 |
Text(measurement.isStable ? "Ready" : "Live") |
|
| 910 |
.font(.caption.weight(.semibold)) |
|
| 911 |
.padding(.horizontal, 10) |
|
| 912 |
.padding(.vertical, 6) |
|
| 913 |
.foregroundColor(measurement.isStable ? .green : .orange) |
|
| 914 |
.meterCard( |
|
| 915 |
tint: measurement.isStable ? .green : .orange, |
|
| 916 |
fillOpacity: 0.10, |
|
| 917 |
strokeOpacity: 0.16, |
|
| 918 |
cornerRadius: 999 |
|
| 919 |
) |
|
| 920 |
} |
|
| 921 | ||
| 922 |
Text("\(measurement.averagePowerWatts.format(decimalDigits: 3)) W")
|
|
| 923 |
.font(.system(.largeTitle, design: .rounded).weight(.bold)) |
|
| 924 |
.monospacedDigit() |
|
| 925 | ||
| 926 |
Text( |
|
| 927 |
"Recent drift: \((measurement.stabilityDeltaWatts * 1000).format(decimalDigits: 2)) mW, tolerance \((measurement.stabilityToleranceWatts * 1000).format(decimalDigits: 2)) mW over \(measurement.sampleCount) samples." |
|
| 928 |
) |
|
| 929 |
.font(.footnote) |
|
| 930 |
.foregroundColor(.secondary) |
|
| 931 |
} |
|
| 932 |
.frame(maxWidth: .infinity, alignment: .leading) |
|
| 933 |
.padding(18) |
|
| 934 |
.meterCard( |
|
| 935 |
tint: measurement.isStable ? .green : .orange, |
|
| 936 |
fillOpacity: 0.18, |
|
| 937 |
strokeOpacity: 0.24 |
|
| 938 |
) |
|
| 939 |
} |
|
| 940 | ||
| 941 |
private var projectionCard: some View {
|
|
| 942 |
MeterInfoCardView( |
|
| 943 |
title: "Consumption Projection", |
|
| 944 |
infoMessage: "These projections extrapolate only from the measured standby average. They do not say anything about charger behaviour under load.", |
|
| 945 |
tint: .teal |
|
| 946 |
) {
|
|
| 947 |
MeterInfoRowView(label: "Average Power", value: "\(measurement.averagePowerWatts.format(decimalDigits: 3)) W") |
|
| 948 |
MeterInfoRowView(label: "24 Hours", value: standbyEnergyLabel(measurement.projectedDailyEnergyWh)) |
|
| 949 |
MeterInfoRowView(label: "7 Days", value: standbyEnergyLabel(measurement.projectedWeeklyEnergyWh)) |
|
| 950 |
MeterInfoRowView(label: "30 Days", value: standbyEnergyLabel(measurement.projectedMonthlyEnergyWh)) |
|
| 951 |
MeterInfoRowView(label: "1 Year", value: standbyEnergyLabel(measurement.projectedYearlyEnergyWh)) |
|
| 952 |
} |
|
| 953 |
} |
|
| 954 | ||
| 955 |
private var distributionCard: some View {
|
|
| 956 |
StandbyPowerDistributionCard( |
|
| 957 |
histogram: measurement.storedHistogram, |
|
| 958 |
averagePowerWatts: measurement.averagePowerWatts, |
|
| 959 |
standardDeviationPowerWatts: measurement.standardDeviationPowerWatts, |
|
| 960 |
tint: .orange, |
|
| 961 |
showExport: true |
|
| 962 |
) |
|
| 963 |
} |
|
| 964 | ||
| 965 |
private var statisticsCard: some View {
|
|
| 966 |
MeterInfoCardView(title: "Interesting Stats", tint: .indigo) {
|
|
| 967 |
MeterInfoRowView(label: "Median", value: "\(measurement.medianPowerWatts.format(decimalDigits: 3)) W") |
|
| 968 |
MeterInfoRowView(label: "Minimum", value: "\(measurement.minimumPowerWatts.format(decimalDigits: 3)) W") |
|
| 969 |
MeterInfoRowView(label: "Maximum", value: "\(measurement.maximumPowerWatts.format(decimalDigits: 3)) W") |
|
| 970 |
MeterInfoRowView(label: "Spread σ", value: "\(measurement.standardDeviationPowerWatts.format(decimalDigits: 4)) W") |
|
| 971 |
MeterInfoRowView(label: "Variation", value: "\(Int((measurement.coefficientOfVariation * 100).rounded()))%") |
|
| 972 |
MeterInfoRowView(label: "Mean Current", value: "\(measurement.averageCurrentAmps.format(decimalDigits: 3)) A") |
|
| 973 |
MeterInfoRowView(label: "Mean Voltage", value: "\(measurement.averageVoltageVolts.format(decimalDigits: 3)) V") |
|
| 974 |
MeterInfoRowView(label: "Power Density", value: "\(measurement.averagePowerWatts.format(decimalDigits: 3)) W steady") |
|
| 975 |
} |
|
| 976 |
} |
|
| 977 | ||
| 978 |
private func standbyEnergyLabel(_ wattHours: Double) -> String {
|
|
| 979 |
if wattHours >= 1000 {
|
|
| 980 |
return "\((wattHours / 1000).format(decimalDigits: 3)) kWh" |
|
| 981 |
} |
|
| 982 |
return "\(wattHours.format(decimalDigits: 2)) Wh" |
|
| 983 |
} |
|
| 984 |
} |