import Foundation

final class ValidationLog {

    private enum LogLevel: String {
        case error = "ERROR"
        case warning = "WARNING"
        case info = "INFO"
    }

    init() {

    }

    private func add(_ type: LogLevel, item: ContentError) {
        let errorText: String
        if let err = item.error {
            errorText = ", Error: \(err.localizedDescription)"
        } else {
            errorText = ""
        }
        print("[\(type.rawValue)][\(item.source)] \(item.reason)\(errorText)")
    }

    func add(error: ContentError) {
        add(.error, item: error)
    }

    func add(error reason: String, source: String, error: Error? = nil) {
        add(error: .init(reason: reason, source: source, error: error))
    }

    func add(warning: ContentError) {
        add(.warning, item: warning)
    }

    func add(warning reason: String, source: String, error: Error? = nil) {
        add(warning: .init(reason: reason, source: source, error: error))
    }

    func add(info: ContentError) {
        add(.info, item: info)
    }

    func add(info reason: String, source: String, error: Error? = nil) {
        add(info: .init(reason: reason, source: source, error: error))
    }

    func failedToOpen(_ file: String, requiredBy source: String, error: Error?) {
        print("[ERROR] Failed to open file '\(file)' required by \(source): \(error?.localizedDescription ?? "No error provided")")
    }
}