AudioTee Swift CLI repo

Sources/Utils/Logger.swift

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+import Foundation
+
+public class Logger {
+  nonisolated(unsafe) private static let dateFormatter: ISO8601DateFormatter = {
+    let formatter = ISO8601DateFormatter()
+    formatter.formatOptions = [
+      .withInternetDateTime,
+      .withFractionalSeconds,
+    ]
+    return formatter
+  }()
+
+  private static let jsonEncoder: JSONEncoder = {
+    let encoder = JSONEncoder()
+    encoder.dateEncodingStrategy = .custom { date, encoder in
+      var container = encoder.singleValueContainer()
+      try container.encode(dateFormatter.string(from: date))
+    }
+    return encoder
+  }()
+
+  // Write any message with the unified envelope
+  public static func writeMessage<T: Codable>(_ type: MessageType, data: T? = nil) {
+    let message = Message(type: type, data: data)
+    do {
+      let jsonData = try jsonEncoder.encode(message)
+      FileHandle.standardOutput.write(jsonData)
+      FileHandle.standardOutput.write("\n".data(using: .utf8)!)
+    } catch {
+      // TODO: handle at some point
+    }
+  }
+
+  // Convenience methods for different message types
+  public static func info(_ message: String, context: [String: String]? = nil) {
+    let logData = LogData(message: message, context: context)
+    writeMessage(.info, data: logData)
+  }
+
+  public static func error(_ message: String, context: [String: String]? = nil) {
+    let logData = LogData(message: message, context: context)
+    writeMessage(.error, data: logData)
+  }
+
+  public static func debug(_ message: String, context: [String: String]? = nil) {
+    let logData = LogData(message: message, context: context)
+    writeMessage(.debug, data: logData)
+  }
+}