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