harden system status and app reliabilityv2.13.1

1 files changed, 39 insertions, 0 deletions

diff --git a/Hutch/Views/More/MoreViewModel.swift b/Hutch/Views/More/MoreViewModel.swift
new file mode 100644
index 0000000..8f23975
--- /dev/null
+++ b/Hutch/Views/More/MoreViewModel.swift
@@ -0,0 +1,39 @@
+import Foundation
+
+@Observable
+@MainActor
+final class MoreViewModel {
+    private let repository: SystemStatusRepository
+
+    private(set) var systemStatusSnapshot: SystemStatusSnapshot?
+    private(set) var isLoadingSystemStatus = false
+    private(set) var isShowingStaleSystemStatus = false
+    private(set) var systemStatusErrorMessage: String?
+
+    init(repository: SystemStatusRepository) {
+        self.repository = repository
+    }
+
+    func loadIfNeeded() async {
+        guard systemStatusSnapshot == nil, !isLoadingSystemStatus else { return }
+        await loadSystemStatus()
+    }
+
+    func loadSystemStatus(forceRefresh: Bool = false) async {
+        isLoadingSystemStatus = true
+        defer { isLoadingSystemStatus = false }
+        isShowingStaleSystemStatus = false
+        systemStatusErrorMessage = nil
+
+        do {
+            let result = try await repository.snapshotResult(forceRefresh: forceRefresh)
+            systemStatusSnapshot = result.value
+            isShowingStaleSystemStatus = result.isStale
+            systemStatusErrorMessage = result.isStale ? result.refreshErrorMessage : nil
+        } catch {
+            if systemStatusSnapshot == nil {
+                systemStatusErrorMessage = error.userFacingMessage
+            }
+        }
+    }
+}