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+import SwiftUI
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+
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+struct ChartLegendView: View {
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+ var state: Home.StateModel
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+
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+ @State var legendSheetDetent = PresentationDetent.large
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+
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+ var body: some View {
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+ NavigationStack {
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+ VStack(alignment: .leading) {
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+ List {
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+ Text(
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+ "The main chart in Trio is made up of various elements and shapes. Find their meanings below."
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+ )
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+ .font(.subheadline)
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+ .foregroundColor(.secondary)
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+ .padding(.bottom)
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+ .listRowBackground(Color.clear)
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+
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+ Text("Forecast").bold().listRowBackground(Color.clear)
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+
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+ VStack(alignment: .leading) {
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+ Text(
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+ "The oref algorithm determines insulin dosing based on a number of scenarios that it estimates with different types of forecasts."
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+ )
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+ .font(.subheadline)
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+ .foregroundColor(.secondary)
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+
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+ if state.forecastDisplayType == .lines {
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+ legendLinesView
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+ } else {
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+ legendConeOfUncertaintyView
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+ }
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+ }
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+
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+ Text("Other Elements & Shapes").bold().listRowBackground(Color.clear).padding(.top)
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+
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+ DefinitionRow(
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+ term: "CGM Glucose Value",
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+ definition: Text(
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+ "Displays real-time glucose readings from a Continuous Glucose Monitor (CGM). Depending on your user interface settings, this may be displayed in a static (red, green, orange) or dynamic coloring scheme (full color spectrum)."
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+ ),
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+ color: Color.green,
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+ iconString: !state.settingsManager.settings.smoothGlucose ? "circle.fill" : "record.circle.fill"
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+ )
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+
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+ DefinitionRow(
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+ term: "Manual Glucose Measurement",
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+ definition: Text("Manually entered blood glucose, such as a fingerstick test."),
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+ color: Color.red,
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+ iconString: "drop.fill"
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+ )
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+
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+ DefinitionRow(
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+ term: "Bolus",
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+ definition: Text(
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+ "Shows an insulin dose, which can be a small automated dose (super-micro-bolus), a manually entered dose, or one given externally (e.g., a pen shot)."
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+ ),
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+ color: Color.insulin,
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+ iconString: "arrowtriangle.down.fill"
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+ )
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+
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+ DefinitionRow(
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+ term: "Carb Entry",
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+ definition: Text("Tracks the carbohydrates you eat, entered to guide insulin dosing."),
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+ color: Color.orange,
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+ iconString: "arrowtriangle.down.fill",
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+ shouldRotateIcon: true
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+ )
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+
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+ DefinitionRow(
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+ term: "Fat-Protein Carb Equivalent",
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+ definition: Text(
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+ "Represents carb equivalent for fat and protein, calculated using the Warsaw Method"
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+ ),
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+ color: Color.brown,
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+ iconString: "circle.fill"
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+ )
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+
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+ DefinitionRow(
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+ term: "Override",
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+ definition: Text(
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+ "Indicates when an override is or was active, temporarily changing therapy settings (e.g., basal rate, insulin sensitivity, carb ratio, target glucose, or whether Trio can dose SMBs)."
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+ ),
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+ color: Color.purple,
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+ iconString: "button.horizontal.fill"
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+ )
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+
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+ DefinitionRow(
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+ term: "Temporary Target",
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+ definition: Text(
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+ "Marks when a short-term temporary glucose target is or was active, (potentially) altering when or how much insulin is delivered."
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+ ),
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+ color: Color.green.opacity(0.4),
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+ iconString: "button.horizontal.fill"
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+ )
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+
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+ DefinitionRow(
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+ term: "Past Insulin-on-Board (IOB)",
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+ definition: Text(
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+ "Shows the IOB value calculated by the algorithm at a specific time in the past. These values are snapshots and won’t change if insulin is added or removed after the fact."
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+ ),
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+ color: Color.darkerBlue.opacity(0.8),
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+ iconString: "line.diagonal"
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+ )
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+
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+ DefinitionRow(
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+ term: "Past Carbs-on-Board (COB)",
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+ definition: Text(
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+ "Shows the COB value calculated by the algorithm at a specific time in the past. These values are snapshots and won’t change if carbs are added or removed after the fact."
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+ ),
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+ color: Color.orange.opacity(0.8),
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+ iconString: "line.diagonal"
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+ )
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+ }
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+ .navigationBarTitle("Legend", displayMode: .inline)
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+ .padding(.trailing, 10)
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+ .padding(.bottom, 15)
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+
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+ Button {
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+ state.isLegendPresented.toggle()
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+ } label: {
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+ Text("Got it!")
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+ .frame(maxWidth: .infinity, alignment: .center)
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+ }
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+ .buttonStyle(.bordered)
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+ .padding(.top)
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+ }
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+ .padding([.horizontal, .bottom])
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+ .ignoresSafeArea(edges: .top)
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+ .presentationDetents(
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+ [.fraction(0.9), .large],
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+ selection: $legendSheetDetent
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+ )
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+ }
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+ }
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+
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+ var legendLinesView: some View {
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+ Group {
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+ DefinitionRow(
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+ term: "IOB (Insulin on Board)",
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+ definition: Text(
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+ "Forecasts future glucose readings based on the amount of insulin still active in the body."
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+ ),
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+ color: .insulin
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+ )
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+ DefinitionRow(
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+ term: "ZT (Zero-Temp)",
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+ definition: Text(
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+ "Forecasts the worst-case future glucose reading scenario if no carbs are absorbed and insulin delivery is stopped until glucose starts rising."
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+ ),
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+ color: .zt
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+ )
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+ DefinitionRow(
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+ term: "COB (Carbs on Board)",
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+ definition: Text(
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+ "Forecasts future glucose reading changes by considering the amount of carbohydrates still being absorbed in the body."
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+ ),
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+ color: .loopYellow
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+ )
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+ DefinitionRow(
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+ term: "UAM (Unannounced Meal)",
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+ definition: Text(
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+ "Forecasts future glucose levels and insulin dosing needs for unexpected meals or other causes of glucose reading increases without prior notice."
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+ ),
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+ color: .uam
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+ )
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+ }
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+ }
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+
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+ var legendConeOfUncertaintyView: some View {
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+ Group {
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+ DefinitionRow(
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+ term: "Cone of Uncertainty",
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+ definition: VStack(alignment: .leading, spacing: 10) {
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+ Text(
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+ "For simplicity reasons, oref's various forecast curves are displayed as a \"Cone of Uncertainty\" that depicts a possible, forecasted range of future glucose fluctuation based on the current data and the algothim's result."
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+ )
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+ Text(
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+ "Note: To modify the forecast display type, go to Trio Settings > Features > User Interface > Forecast Display Type."
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+ )
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+ },
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+ color: Color.blue.opacity(0.5)
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+ )
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+ }
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+ }
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+}
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Deniz Cengiz