76 lines
2.4 KiB
Swift
76 lines
2.4 KiB
Swift
import Foundation
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import Observation
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import TermindDomain
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@MainActor
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@Observable
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public final class DeviceDirectoryModel {
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private let repository: any DeviceDirectoryRepository
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public let currentDeviceID: UUID
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public private(set) var currentDeviceName: String
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private var cachedDevices: [UUID: DeviceRecord] = [:]
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public private(set) var revision: UInt64 = 0
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public private(set) var storageError: String?
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public init(
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repository: (any DeviceDirectoryRepository)? = nil,
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currentDeviceID: UUID = UUID(),
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currentDeviceName: String = ProcessInfo.processInfo.hostName
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) {
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self.repository = repository ?? InMemoryDeviceDirectoryRepository()
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self.currentDeviceID = currentDeviceID
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self.currentDeviceName = currentDeviceName
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registerCurrentDevice()
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}
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public func devices() -> [DeviceRecord] {
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_ = revision
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return Array(cachedDevices.values)
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}
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public func name(for deviceID: UUID?) -> String? {
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guard let deviceID else { return nil }
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_ = revision
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return cachedDevices[deviceID]?.displayName
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?? (deviceID == currentDeviceID ? currentDeviceName : nil)
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}
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public func reload() {
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do {
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let values = try repository.devices()
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cachedDevices = Dictionary(uniqueKeysWithValues: values.map { ($0.id, $0) })
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storageError = nil
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} catch {
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cachedDevices = [:]
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storageError = error.localizedDescription
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}
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revision &+= 1
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}
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public func updateCurrentDeviceName(_ name: String) {
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do {
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try repository.upsert(DeviceRecord(id: currentDeviceID, displayName: name))
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currentDeviceName = name
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reload()
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} catch {
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storageError = error.localizedDescription
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}
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}
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private func registerCurrentDevice() {
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do {
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try repository.registerIfNeeded(
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DeviceRecord(id: currentDeviceID, displayName: currentDeviceName))
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} catch {
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storageError = error.localizedDescription
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}
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// Registration can fail while previously saved device names remain readable.
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do {
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let values = try repository.devices()
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cachedDevices = Dictionary(uniqueKeysWithValues: values.map { ($0.id, $0) })
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} catch {
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storageError = error.localizedDescription
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}
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}
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}
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