initial commit

OLTListView.swift

@@ -0,0 +1,75 @@
+import SwiftUI
+
+struct OLTListView: View {
+    let connection: MCMSConnection
+    @State private var vm: OLTListViewModel
+
+    init(connection: MCMSConnection) {
+        self.connection = connection
+        _vm = State(initialValue: OLTListViewModel(connection: connection))
+    }
+
+    var body: some View {
+        @Bindable var vm = vm
+        Group {
+            switch vm.phase {
+            case .idle:
+                LoadingView(label: "Loading OLTs…")
+            case .loading where vm.olts.isEmpty:
+                LoadingView(label: "Loading OLTs…")
+            case .failed(let msg):
+                ErrorStateView(message: msg) { Task { await vm.load() } }
+            default:
+                list
+            }
+        }
+        .navigationTitle("OLTs")
+        .searchable(text: $vm.search, prompt: "OLT name or MAC")
+        .task { if vm.phase == .idle { await vm.load() } }
+        .refreshable { await vm.load() }
+    }
+
+    private var list: some View {
+        List(vm.filtered) { olt in
+            NavigationLink {
+                OLTDetailView(connection: connection, oltId: olt.id, title: olt.displayName)
+            } label: {
+                row(olt)
+            }
+        }
+        .listStyle(.plain)
+        .overlay {
+            if vm.filtered.isEmpty {
+                if vm.search.isEmpty {
+                    ContentUnavailableView("No OLTs", systemImage: "antenna.radiowaves.left.and.right")
+                } else {
+                    ContentUnavailableView.search(text: vm.search)
+                }
+            }
+        }
+    }
+
+    private func row(_ olt: OLTStateDoc) -> some View {
+        HStack {
+            VStack(alignment: .leading, spacing: 4) {
+                Text(olt.displayName).font(.body.weight(.medium))
+                Text(subtitle(olt)).font(.caption).foregroundStyle(.secondary)
+            }
+            Spacer()
+            let down = olt.totalONUs - olt.onlineONUs
+            if olt.totalONUs == 0 {
+                StateBadge(text: "no ONUs", color: .secondary)
+            } else if down > 0 {
+                StateBadge(text: "\(down) down", color: .orange)
+            } else {
+                StateBadge(text: "all up", color: .green)
+            }
+        }
+    }
+
+    /// Secondary line: the MAC (only when a name is the title) and the ONU counts.
+    private func subtitle(_ olt: OLTStateDoc) -> String {
+        let prefix = olt.resolvedName != nil ? "\(olt.id) · " : ""
+        return "\(prefix)\(olt.totalONUs) ONUs · \(olt.onlineONUs) online"
+    }
+}