initial commit

ResetConfirmSheet.swift

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+import SwiftUI
+
+/// Strong, reusable confirmation for service-affecting device resets: a red
+/// warning, an explicit acknowledgement the user must switch on, and a prominent
+/// red action button that stays disabled until then. Presented as a sheet so it
+/// can't be dismissed by an accidental background tap into a destructive action.
+struct ResetConfirmSheet: View {
+    let deviceKind: String       // "ONU" / "OLT"
+    let deviceName: String
+    let onConfirm: () -> Void
+
+    @Environment(\.dismiss) private var dismiss
+    @State private var acknowledged = false
+
+    var body: some View {
+        NavigationStack {
+            Form {
+                Section {
+                    HStack(spacing: 12) {
+                        Image(systemName: "exclamationmark.triangle.fill")
+                            .font(.title2)
+                            .foregroundStyle(.red)
+                        Text("Service-affecting").font(.headline)
+                    }
+                    Text("Resetting \(deviceKind) “\(deviceName)” reboots it and interrupts service for everything connected to it. This can take several minutes and can't be undone.")
+                        .font(.subheadline)
+                }
+
+                Section {
+                    Toggle("I understand this will interrupt service", isOn: $acknowledged)
+                        .tint(.red)
+                }
+
+                Section {
+                    Button {
+                        onConfirm()
+                        dismiss()
+                    } label: {
+                        HStack {
+                            Spacer()
+                            Label("Reset \(deviceKind)", systemImage: "arrow.clockwise")
+                                .fontWeight(.semibold)
+                            Spacer()
+                        }
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .tint(.red)
+                    .disabled(!acknowledged)
+                }
+                .listRowBackground(Color.clear)
+            }
+            .navigationTitle("Reset \(deviceKind)?")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .cancellationAction) {
+                    Button("Cancel") { dismiss() }
+                }
+            }
+        }
+        .presentationDetents([.medium])
+    }
+}