/// Unknown or not supported error.

case Unknown

/// Not connected to the internet.

case NotConnectedToInternet

/// International data roaming turned off.

case InternationalRoamingOff

/// Cannot reach the server.

case NotReachedServer

/// Connection is lost.

case ConnectionLost

/// Incorrect data returned from the server.

case IncorrectDataReturned

internal init(error: NSError) {

if error.domain == NSURLErrorDomain {

switch error.code {

case NSURLErrorUnknown:

self = .Unknown

case NSURLErrorCancelled:

self = .Unknown // Cancellation is not used in this project.

case NSURLErrorBadURL:

self = .IncorrectDataReturned // Because it is caused by a bad URL returned in a JSON response from the server.

case NSURLErrorTimedOut:

self = .NotReachedServer

case NSURLErrorUnsupportedURL:

self = .IncorrectDataReturned

case NSURLErrorCannotFindHost, NSURLErrorCannotConnectToHost:

self = .NotReachedServer

case NSURLErrorDataLengthExceedsMaximum:

self = .IncorrectDataReturned

case NSURLErrorNetworkConnectionLost:

self = .ConnectionLost

case NSURLErrorDNSLookupFailed:

self = .NotReachedServer

case NSURLErrorHTTPTooManyRedirects:

self = .Unknown

case NSURLErrorResourceUnavailable:

self = .IncorrectDataReturned

case NSURLErrorNotConnectedToInternet:

self = .NotConnectedToInternet

case NSURLErrorRedirectToNonExistentLocation, NSURLErrorBadServerResponse:

self = .IncorrectDataReturned

case NSURLErrorUserCancelledAuthentication, NSURLErrorUserAuthenticationRequired:

self = .Unknown

case NSURLErrorZeroByteResource, NSURLErrorCannotDecodeRawData, NSURLErrorCannotDecodeContentData:

self = .IncorrectDataReturned

case NSURLErrorCannotParseResponse:

self = .IncorrectDataReturned

case NSURLErrorInternationalRoamingOff:

self = .InternationalRoamingOff

case NSURLErrorCallIsActive, NSURLErrorDataNotAllowed, NSURLErrorRequestBodyStreamExhausted:

self = .Unknown

case NSURLErrorFileDoesNotExist, NSURLErrorFileIsDirectory:

self = .IncorrectDataReturned

case

NSURLErrorNoPermissionsToReadFile,

NSURLErrorSecureConnectionFailed,

NSURLErrorServerCertificateHasBadDate,

NSURLErrorServerCertificateUntrusted,

NSURLErrorServerCertificateHasUnknownRoot,

NSURLErrorServerCertificateNotYetValid,

NSURLErrorClientCertificateRejected,

NSURLErrorClientCertificateRequired,

NSURLErrorCannotLoadFromNetwork,

NSURLErrorCannotCreateFile,

NSURLErrorCannotOpenFile,

NSURLErrorCannotCloseFile,

NSURLErrorCannotWriteToFile,

NSURLErrorCannotRemoveFile,

NSURLErrorCannotMoveFile,

NSURLErrorDownloadDecodingFailedMidStream,

NSURLErrorDownloadDecodingFailedToComplete:

self = .Unknown

default:

self = .Unknown

}

}

else {

self = .Unknown

}

}

public var description: String {

let text: String

switch self {

case .Unknown:

text = LocalizedString("NetworkError_Unknown", comment: "Error description")

case .NotConnectedToInternet:

text = LocalizedString("NetworkError_NotConnectedToInternet", comment: "Error description")

case .InternationalRoamingOff:

text = LocalizedString("NetworkError_InternationalRoamingOff", comment: "Error description")

case .NotReachedServer:

text = LocalizedString("NetworkError_NotReachedServer", comment: "Error description")

case .ConnectionLost:

text = LocalizedString("NetworkError_ConnectionLost", comment: "Error description")

case .IncorrectDataReturned:

text = LocalizedString("NetworkError_IncorrectDataReturned", comment: "Error description")

}

return text

}