import Foundation

let log = Log()

final class Log: ObservableObject {

    private let df: DateFormatter

    init() {
        df = .init()
        df.dateStyle = .short
        df.timeStyle = .medium
    }

    enum Level: String {
        case info = "INFO"
        case warning = "WARN"
        case error = "ERROR"
    }

    @Published
    var logEntries: [LogEntry] = []

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

    func warning(_ message: String) {
        log(.warning, message)
    }

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

    func log(_ level: Level, _ message: String) {
        let entry = LogEntry(level: level, message: message)
        logEntries.insert(entry, at: 0)
        print(entry)
    }
}

extension Log.Level: CustomStringConvertible {

    var description: String {
        rawValue
    }
}