81 lines
3.3 KiB
Swift
81 lines
3.3 KiB
Swift
import Foundation
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import Observation
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import TermindApplication
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/// Plaintext lives only in an editor or a request. Previewing never writes the Keychain.
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@MainActor @Observable
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final class MobileSecretDraft {
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enum Action: String, CaseIterable { case preserve, replace, clear }
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private var originalReference = ""
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private var originalSecret: String?
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private var readError: String?
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func begin(in ai: AIConfigurationModel, reference: String) {
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originalReference = reference
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if !reference.isEmpty {
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originalSecret = ai.secret(for: reference)
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readError = ai.secretStorageError
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}
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}
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var action = Action.preserve
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var text = ""
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var isDirty: Bool { action != .preserve || !text.isEmpty }
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var isValid: Bool { action != .replace || !text.isEmpty }
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func effective(in ai: AIConfigurationModel, reference: String) throws -> String {
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switch action {
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case .clear: return ""
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case .replace: return text
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case .preserve:
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guard !reference.isEmpty else { return "" }
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let value = ai.secret(for: reference) ?? ""
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if let error = ai.secretStorageError { throw MobileEditorError.message(error) }
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return value
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}
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}
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func providerEdit(reference: String, kind: ModelProviderCredentialKind) throws -> ModelProviderCredentialEdit? {
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guard action != .preserve else { return nil }
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if let readError { throw MobileEditorError.message(readError) }
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guard reference == originalReference else { throw SettingsDraftMerge.Conflict.changed }
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return .init(
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kind: kind, reference: reference, previous: originalSecret, replacement: action == .clear ? nil : text)
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}
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func discardPlaintext() {
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text = ""
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originalSecret = nil
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}
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func commit(in ai: AIConfigurationModel, reference: String, kind: String = "key", save: (String) -> Bool) throws {
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if action != .preserve {
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if let readError { throw MobileEditorError.message(readError) }
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guard reference == originalReference else { throw SettingsDraftMerge.Conflict.changed }
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if !reference.isEmpty {
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let current = ai.secret(for: reference)
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if let error = ai.secretStorageError { throw MobileEditorError.message(error) }
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guard current == originalSecret else { throw SettingsDraftMerge.Conflict.changed }
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}
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}
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let ref = reference.isEmpty ? AIConfigurationModel.makeCredentialRef(kind) : reference
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var previous: String?
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if action != .preserve {
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previous = ai.secret(for: ref)
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if let error = ai.secretStorageError { throw MobileEditorError.message(error) }
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ai.setSecret(action == .clear ? nil : text, for: ref)
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if let error = ai.secretStorageError { throw MobileEditorError.message(error) }
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}
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let next = action == .preserve ? reference : action == .clear ? "" : ref
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guard save(next) else {
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var message = ai.storageError ?? String(localized: "Unable to Save")
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if action != .preserve {
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ai.setSecret(previous, for: ref)
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if let error = ai.secretStorageError { message += "\n" + error }
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}
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throw MobileEditorError.message(message)
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}
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text = ""
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}
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}
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