krz/hutch

 1import Foundation
 2
 3actor SystemStatusCacheStore {
 4    private let snapshotCacheKey = "systemStatusSnapshotCache"
 5    private let incidentCacheKey = "systemStatusIncidentCache"
 6    private let defaults: UserDefaults
 7
 8    init(defaults: UserDefaults = .standard) {
 9        self.defaults = defaults
10    }
11
12    func loadSnapshotHTML() -> (html: String, timestamp: Date)? {
13        guard let html = defaults.string(forKey: snapshotCacheKey) else {
14            return nil
15        }
16
17        let timestampValue = defaults.double(forKey: snapshotTimestampKey)
18        guard timestampValue > 0 else {
19            defaults.removeObject(forKey: snapshotCacheKey)
20            defaults.removeObject(forKey: snapshotTimestampKey)
21            return nil
22        }
23
24        return (html, Date(timeIntervalSince1970: timestampValue))
25    }
26
27    func saveSnapshotHTML(_ html: String, timestamp: Date) {
28        defaults.set(html, forKey: snapshotCacheKey)
29        defaults.set(timestamp.timeIntervalSince1970, forKey: snapshotTimestampKey)
30    }
31
32    func loadIncidentFeedData() -> (data: Data, timestamp: Date)? {
33        guard let data = defaults.data(forKey: incidentCacheKey) else {
34            return nil
35        }
36
37        let timestampValue = defaults.double(forKey: incidentTimestampKey)
38        guard timestampValue > 0 else {
39            defaults.removeObject(forKey: incidentCacheKey)
40            defaults.removeObject(forKey: incidentTimestampKey)
41            return nil
42        }
43
44        return (data, Date(timeIntervalSince1970: timestampValue))
45    }
46
47    func saveIncidentFeedData(_ data: Data, timestamp: Date) {
48        defaults.set(data, forKey: incidentCacheKey)
49        defaults.set(timestamp.timeIntervalSince1970, forKey: incidentTimestampKey)
50    }
51
52    private var snapshotTimestampKey: String {
53        "\(snapshotCacheKey).timestamp"
54    }
55
56    private var incidentTimestampKey: String {
57        "\(incidentCacheKey).timestamp"
58    }
59}