1 files changed, 76 insertions, 0 deletions
diff --git a/DomainDig/DataResetService.swift b/DomainDig/DataResetService.swift
new file mode 100644
index 0000000..e993eba
--- /dev/null
+++ b/DomainDig/DataResetService.swift
@@ -0,0 +1,76 @@
+import Foundation
+import Security
+
+enum DataResetService {
+    enum ResetError: LocalizedError {
+        case missingBundleIdentifier
+
+        var errorDescription: String? {
+            switch self {
+            case .missingBundleIdentifier:
+                "DomainDig could not determine its local storage identifier."
+            }
+        }
+    }
+
+    static func wipeAllLocalData(viewModel: DomainViewModel) async throws {
+        let secretReferences = await MainActor.run {
+            IntegrationService.shared.localSecretReferences()
+        }
+
+        try await Task.detached(priority: .userInitiated) {
+            try performPersistentWipe(secretReferences: secretReferences)
+        }.value
+
+        await LookupRuntime.shared.clearCache()
+        await LocalNotificationService.shared.clearAllNotifications()
+        await UsageCreditService.shared.resetForCurrentVersion()
+
+        await MainActor.run {
+            IntegrationService.shared.resetAfterLocalWipe()
+            CloudSyncService.shared.resetLocalStateAfterWipe()
+            PurchaseService.shared.resetCachedStateAfterLocalWipe()
+            _ = DomainMonitoringScheduler.shared.syncSchedule()
+        }
+
+        await viewModel.applyLocalDataReset()
+    }
+
+    private nonisolated static func performPersistentWipe(secretReferences: [String]) throws {
+        guard let bundleIdentifier = Bundle.main.bundleIdentifier else {
+            throw ResetError.missingBundleIdentifier
+        }
+
+        for reference in secretReferences {
+            deleteIntegrationSecret(reference: reference)
+        }
+
+        try removeTemporaryFiles()
+
+        let defaults = UserDefaults.standard
+        defaults.removePersistentDomain(forName: bundleIdentifier)
+        defaults.synchronize()
+    }
+
+    private nonisolated static func removeTemporaryFiles() throws {
+        let tempDirectory = FileManager.default.temporaryDirectory
+        let urls = try FileManager.default.contentsOfDirectory(
+            at: tempDirectory,
+            includingPropertiesForKeys: nil,
+            options: [.skipsHiddenFiles]
+        )
+
+        for url in urls {
+            try? FileManager.default.removeItem(at: url)
+        }
+    }
+
+    private nonisolated static func deleteIntegrationSecret(reference: String) {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: reference
+        ]
+
+        SecItemDelete(query as CFDictionary)
+    }
+}