44 lines
1.3 KiB
Swift
44 lines
1.3 KiB
Swift
import Foundation
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struct HistoryEntry: Codable, Equatable {
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let role: String
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let text: String
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let timestamp: Date
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}
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/// Last 50 final transcript entries persisted as JSON in UserDefaults.
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@MainActor
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final class TranscriptHistory: ObservableObject {
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@Published private(set) var entries: [HistoryEntry] = []
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private static let key = "voice_history"
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private static let maxEntries = 50
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init() {
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if let raw = UserDefaults.standard.string(forKey: Self.key),
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let data = raw.data(using: .utf8),
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let decoded = try? JSONDecoder().decode([HistoryEntry].self, from: data) {
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entries = Array(decoded.suffix(Self.maxEntries))
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}
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}
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func add(role: String, text: String) {
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guard !text.isEmpty else { return }
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entries.append(HistoryEntry(role: role, text: text, timestamp: Date()))
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if entries.count > Self.maxEntries {
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entries.removeFirst(entries.count - Self.maxEntries)
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}
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persist()
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}
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func clear() {
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entries.removeAll()
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persist()
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}
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private func persist() {
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guard let data = try? JSONEncoder().encode(entries) else { return }
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UserDefaults.standard.set(String(decoding: data, as: UTF8.self), forKey: Self.key)
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}
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}
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