52 lines
1.8 KiB
Swift
52 lines
1.8 KiB
Swift
import Foundation
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import OpenLessCore
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/// v1 demo 简化版历史：JSON 文件 append；后续切 SQLite。
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public final class HistoryStore: @unchecked Sendable {
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private let fileURL: URL
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private let lock = NSLock()
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private let encoder = JSONEncoder()
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private let decoder = JSONDecoder()
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public init() {
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encoder.dateEncodingStrategy = .iso8601
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decoder.dateDecodingStrategy = .iso8601
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let dir = FileManager.default
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.urls(for: .applicationSupportDirectory, in: .userDomainMask)[0]
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.appendingPathComponent("OpenLess", isDirectory: true)
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try? FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
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self.fileURL = dir.appendingPathComponent("history.json")
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if !FileManager.default.fileExists(atPath: fileURL.path) {
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FileManager.default.createFile(atPath: fileURL.path, contents: "[]".data(using: .utf8))
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}
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}
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public func save(_ session: DictationSession) {
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lock.lock()
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defer { lock.unlock() }
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var sessions = loadAll()
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sessions.insert(session, at: 0)
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if sessions.count > 200 { sessions = Array(sessions.prefix(200)) }
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if let data = try? encoder.encode(sessions) {
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try? data.write(to: fileURL, options: .atomic)
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}
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}
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public func recent(limit: Int = 50) -> [DictationSession] {
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lock.lock()
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defer { lock.unlock() }
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return Array(loadAll().prefix(limit))
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}
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public func clear() {
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lock.lock()
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defer { lock.unlock() }
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try? "[]".data(using: .utf8)?.write(to: fileURL)
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}
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private func loadAll() -> [DictationSession] {
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guard let data = try? Data(contentsOf: fileURL) else { return [] }
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return (try? decoder.decode([DictationSession].self, from: data)) ?? []
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}
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}
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