RxResultHandlerEnum

RxResultHandlerEnum.swift

// DEFINITIONS

enum ResultHandler<T> {
    case Success((T) -> Void)
    case Empty(() -> Void)
    case Failure((T) -> Void)
    
    func run(a:T) {
        switch self {
        case Success(let completion):
            completion(a)
        case Empty (let completion):
            completion()
        case Failure(let completion):
            completion(a)
        }
    }
}

// this will be the struct that will recieve
struct FailureReason{
    var code:Int!
    var message:String!
    
    func description() -> String {
        return "Error code \(code): \(message)"
    }
    
}


// CALLER
    
    func testingAtLaunch(){

        let successCompletion = ResultHandler<User>.Success({user in
            debugPrint(user)
        })
        let failureCompletion = ResultHandler<FailureReason>.Failure({f in
            debugPrint(f.description())
        })

        ApiClient.sharedInstance.getUser("56cfffce227a6c2c9b000001", successCompletion: successCompletion, failureCompletion: failureCompletion)
        
    }


// API LIBRARY

    // gets current user
    func getUser(user_id: String?, successCompletion: ResultHandler<User>, failureCompletion:ResultHandler<FailureReason>){

        var url: String!

        if user_id != nil {
            url = "\(currentURL)/users/\(user_id!).json"
        } else {
            url = "\(currentURL)/users/me"
        }

        Alamofire.request(.GET,url).responseJSON(
            completionHandler: {
                response in
                switch response.result {
                case .Success(let JSON):
                    if let user = Mapper<User>().map(JSON){
                        successCompletion.run(user)
                    }
                case .Failure(let error):
                    let fr = FailureReason(code: response.response?.statusCode, message: error.localizedDescription)
                    failureCompletion.run(fr)
                }
            }
        )
    }