import Foundation
import os.log

enum LogLevel: String {
    case debug
    case info
    case error
}

public final class Logger {
    private let subsystem: String
    private let category: String

    public static let service = Logger(category: "Service")
    public static let ui = Logger(category: "UI")
    public static let client = Logger(category: "Client")
    public static let updateChecker = Logger(category: "UpdateChecker")

    public init(subsystem: String = "com.intii.CopilotForXcode", category: String) {
        self.subsystem = subsystem
        self.category = category
    }

    func log(level: LogLevel, message: String) {
        let osLogType: OSLogType
        switch level {
        case .debug:
            osLogType = .debug
        case .info:
            osLogType = .info
        case .error:
            osLogType = .error
        }

        let osLog = OSLog(subsystem: subsystem, category: category)
        os_log("%{public}@", log: osLog, type: osLogType, message as CVarArg)
    }

    public func debug(_ message: String) {
        log(level: .debug, message: message)
    }

    public func info(_ message: String) {
        log(level: .info, message: message)
    }

    public func error(_ message: String) {
        log(level: .error, message: message)
    }

    public func error(_ error: Error) {
        log(level: .error, message: error.localizedDescription)
    }
}