Trio/Trio/Sources/Modules/Onboarding/View/OnboardingSteps/Nightscout/NightscoutImportStepView.swift

import SwiftUI

struct NightscoutImportStepView: View {
    @Bindable var state: Onboarding.StateModel

    @State var importAlert: Alert?
    @State var isImportAlertPresented: Bool = false

    var body: some View {
        ZStack {
            if state.nightscoutImportStatus == .running {
                VStack(alignment: .center) {
                    Spacer(minLength: 150)
                    CustomProgressView(
                        text: String(
                            localized: "Importing Settings...",
                            comment: "Progress text when importing settings via Nightscout"
                        )
                    )
                }
                .frame(maxWidth: .infinity, maxHeight: .infinity)
                .background(Color.clear)
            } else {
                VStack(alignment: .leading, spacing: 20) {
                    Text(
                        "Please choose if you want to import existing therapy settings from Nightscout or start from scratch."
                    )
                    .font(.headline)
                    .padding(.horizontal)
                    .multilineTextAlignment(.leading)

                    ForEach([NightscoutImportOption.useImport, NightscoutImportOption.skipImport], id: \.self) { option in
                        Button(action: {
                            state.nightscoutImportOption = option
                        }) {
                            HStack {
                                Image(systemName: state.nightscoutImportOption == option ? "largecircle.fill.circle" : "circle")
                                    .foregroundColor(state.nightscoutImportOption == option ? .accentColor : .secondary)
                                    .imageScale(.large)

                                Text(option.displayName)
                                    .foregroundColor(.primary)

                                Spacer()
                            }
                            .padding()
                            .background(Color.chart.opacity(0.65))
                            .cornerRadius(10)
                        }
                        .buttonStyle(.plain)
                    }

                    VStack(alignment: .leading, spacing: 10) {
                        Text("Trio will import the following therapy settings from your Nightscout instance:")
                            .multilineTextAlignment(.leading)
                        VStack(alignment: .leading) {
                            Text("• Glucose Targets")
                            Text("• Basal Rates")
                            Text("• Carb Ratios")
                            Text("• Insulin Sensitivities")
                        }
                    }
                    .padding(.horizontal)
                    .font(.footnote)
                    .foregroundStyle(Color.secondary)
                    .multilineTextAlignment(.leading)
                }
            }
        }
        .frame(maxWidth: .infinity, maxHeight: .infinity)
        .alert(isPresented: $isImportAlertPresented) {
            if state.nightscoutImportStatus == .failed, state.nightscoutImportErrors.isNotEmpty,
               let errorMessage = state.nightscoutImportErrors.first
            {
                DispatchQueue.main.async {
                    importAlert = Alert(
                        title: Text("Import Failed"),
                        message: Text(errorMessage.description),
                        dismissButton: .default(Text("OK"))
                    )
                    isImportAlertPresented = true
                }
            }
            return importAlert ?? Alert(title: Text("Unknown Error"))
        }
    }
}