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// Copyright © 2015 Abhishek Banthia
import Cocoa
class NetworkManager: NSObject {
static let parsingError: NSError = {
let userInfoDictionary: [String: Any] = [NSLocalizedDescriptionKey: "Parsing Error"]
let error = NSError(domain: "APIError", code: 102, userInfo: userInfoDictionary)
return error
}()
static let internalServerError: NSError = {
let localizedError = """
There was a problem retrieving your information. Please try again later.
If the problem continues please contact App Support.
"""
let userInfoDictionary: [String: Any] = [NSLocalizedDescriptionKey: "Internal Error",
NSLocalizedFailureReasonErrorKey: localizedError]
let error = NSError(domain: "APIError", code: 100, userInfo: userInfoDictionary)
return error
}()
static let unableToGenerateURL: NSError = {
let localizedError = """
There was a problem searching the location. Please try again later.
If the problem continues please contact App Support.
"""
let userInfoDictionary: [String: Any] = [NSLocalizedDescriptionKey: "Unable to generate URL",
NSLocalizedFailureReasonErrorKey: localizedError]
let error = NSError(domain: "APIError", code: 100, userInfo: userInfoDictionary)
return error
}()
}
extension NetworkManager {
@discardableResult
class func task(with path: String, completionHandler: @escaping (_ response: Data?, _ error: NSError?) -> Void) -> URLSessionDataTask? {
let configuration = URLSessionConfiguration.default
configuration.timeoutIntervalForRequest = 20
let session = URLSession(configuration: configuration)
guard let encodedPath = path.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed),
let url = URL(string: encodedPath) else {
completionHandler(nil, unableToGenerateURL)
return nil
}
var request = URLRequest(url: url)
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
let dataTask = session.dataTask(with: request) { data, urlResponse, error in
// Check if we're running a network UI test
if ProcessInfo.processInfo.arguments.contains("mockTimezoneDown") {
completionHandler(nil, internalServerError)
return
}
guard error == nil, let httpURLResponse = urlResponse as? HTTPURLResponse, let json = data else {
completionHandler(nil, internalServerError)
return
}
if httpURLResponse.statusCode != 200 {
completionHandler(nil, internalServerError)
return
}
completionHandler(json, nil)
}
dataTask.resume()
return dataTask
}
class func isConnected() -> Bool {
// For tests
if ProcessInfo.processInfo.arguments.contains("mockNetworkDown") {
return false
}
let status = Reach().connectionStatus()
switch status {
case .online(.wwan):
return true
case .online(.wiFi):
return true
default:
return false
}
}
}