localizable error types

customError.swift

// avoid the whole switch error type set description pattern we were using before (unless custom actions need to be attached or something)
// see: https://stackoverflow.com/questions/39176196/how-to-provide-a-localized-description-with-an-error-type-in-swift

import Foundation

public enum customError:Error{
    case NONETWORK
    case INVALIDJSON
    case UNEXPECTEDRESPONSE
    case INVALIDCREDENTIALS
    case Other(String?)
}

extension customError: LocalizedError {
    public var errorDescription: String? {
        switch self {
        case .NONETWORK:
            return NSLocalizedString("No hay conexión al servidor.", comment: "Sin conectividad")
        case .INVALIDJSON, .UNEXPECTEDRESPONSE:
            return NSLocalizedString("Respuesta del servidor invalida.", comment: "El servidor ha retornado una respuesta invalida.")
        case .INVALIDCREDENTIALS:
            return NSLocalizedString("El usuario o contraseña son incorrectos", comment: "Autorización Invalida")
        case .Other(let s):
            return s!
        }
    }
}