Sentinel.swift

import Foundation

public protocol Logger: AnyObject {
    static func info(_ message: String, file: StaticString, function: StaticString)
    static func event(_ message: String, file: StaticString, function: StaticString)
    static func error(_ message: String, file: StaticString, function: StaticString)
}

final class Sentinel: Logger {
    static func info(
        _ message: String,
        file: StaticString = #file,
        function: StaticString = #function
    ) {
        log(level: "ℹ️", message: message, file: file, function: function)
    }
    
    static func event(
        _ message: String,
        file: StaticString = #file,
        function: StaticString = #function
    ) {
        log(level: "📝", message: message, file: file, function: function)
    }
    
    static func error(
        _ message: String,
        file: StaticString = #file,
        function: StaticString = #function
    ) {
        log(level: "😱", message: message, file: file, function: function)
    }
    
    // swiftlint:disable print_function_usage
    private static func log(
        level: String,
        message: String = "",
        file: StaticString = #file,
        function: StaticString = #function
    ) {
        let fileName = (String(describing: file) as NSString).lastPathComponent
        print("[\(level)] \(fileName) - \(function) -> \(message)")
    }
}