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//
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// Copyright © 2023 osy. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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protocol UTMScriptable: Equatable {}
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extension UTMScriptable {
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/// Run a script command asynchronously
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/// - Parameters:
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/// - command: Script command to run
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/// - body: What to do
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@MainActor
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func withScriptCommand<Result>(_ command: NSScriptCommand, body: @MainActor @escaping () async throws -> Result) {
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command.suspendExecution()
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// we need to run this in next event loop due to the need to return before calling resume
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DispatchQueue.main.async {
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Task {
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do {
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let result = try await body()
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await MainActor.run {
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if result is Void {
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command.resumeExecution(withResult: nil)
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} else {
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command.resumeExecution(withResult: result)
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}
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}
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} catch {
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await MainActor.run {
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command.scriptErrorNumber = errOSAGeneralError
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command.scriptErrorString = error.localizedDescription
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command.resumeExecution(withResult: nil)
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}
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}
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}
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}
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}
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/// Convert text to data either as a UTF-8 string or as binary encoded in base64
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/// - Parameters:
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/// - text: Text input
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/// - isBase64Encoded: If true, the data will be decoded from base64
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/// - Returns: Data or nil on error (or if text was nil)
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func dataFromText(_ text: String?, isBase64Encoded: Bool = false) -> Data? {
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if let text = text {
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if isBase64Encoded {
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return Data(base64Encoded: text)
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} else {
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return text.data(using: .utf8)
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}
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} else {
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return nil
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}
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}
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/// Convert data to either UTF-8 string or as binary encoded in base64
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/// - Parameters:
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/// - data: Data input
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/// - isBase64Encoded: If true, the text will be encoded to base64
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/// - Returns: Text or nil on error (or if data was nil)
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func textFromData(_ data: Data?, isBase64Encoded: Bool = false) -> String? {
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if let data = data {
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if isBase64Encoded {
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return data.base64EncodedString()
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} else {
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return String(data: data, encoding: .utf8)
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}
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} else {
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return nil
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}
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}
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}
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