ae55616444
saveEvents used .iso8601 encoding but loadEvents used the default decoder (.deferredToDate). ISO8601 date strings could not be decoded back, causing loadEvents() to return [] after the first log — breaking event rotation and losing all previous audit entries.
83 lines
2.8 KiB
Swift
83 lines
2.8 KiB
Swift
// ── Audit Logger ────────────────────────────────────────────
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// Generic local audit logger that tracks user actions for debugging.
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// Stores events in a rotating JSON file (configurable max entries).
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// Product apps configure with a product-specific file name.
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import Foundation
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/// Audit event stored locally.
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public struct BLAuditEvent: Codable, Sendable {
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public let id: String
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public let action: String
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public let details: String?
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public let timestamp: Date
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public init(action: String, details: String? = nil) {
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self.id = UUID().uuidString
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self.action = action
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self.details = details
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self.timestamp = Date()
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}
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}
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/// Generic local audit logger for all ByteLyst iOS apps.
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/// Stores events in a rotating JSON file in the Documents directory.
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public enum BLAuditLogger {
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private static var maxEvents = 1000
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private static var fileName = "audit_log.json"
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/// Configure the logger with a product-specific file name and max events.
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public static func configure(fileName: String = "audit_log.json", maxEvents: Int = 1000) {
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self.fileName = fileName
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self.maxEvents = maxEvents
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}
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private static var fileURL: URL {
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let docs = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
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return docs.appendingPathComponent(fileName)
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}
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/// Log a user action.
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public static func log(_ action: String, details: String? = nil) {
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let event = BLAuditEvent(action: action, details: details)
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var events = loadEvents()
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events.append(event)
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// Rotate: keep only the most recent maxEvents
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if events.count > maxEvents {
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events = Array(events.suffix(maxEvents))
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}
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saveEvents(events)
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}
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/// Get all logged events (newest first).
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public static func getEvents(limit: Int = 100) -> [BLAuditEvent] {
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let events = loadEvents()
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return Array(events.suffix(limit).reversed())
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}
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/// Clear all audit logs.
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public static func clear() {
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try? FileManager.default.removeItem(at: fileURL)
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}
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// MARK: - Persistence
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private static func loadEvents() -> [BLAuditEvent] {
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guard let data = try? Data(contentsOf: fileURL) else { return [] }
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let decoder = JSONDecoder()
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decoder.dateDecodingStrategy = .iso8601
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return (try? decoder.decode([BLAuditEvent].self, from: data)) ?? []
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}
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private static func saveEvents(_ events: [BLAuditEvent]) {
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let encoder = JSONEncoder()
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encoder.dateEncodingStrategy = .iso8601
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guard let data = try? encoder.encode(events) else { return }
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try? data.write(to: fileURL, options: .atomic)
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}
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}
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