JSONSerialisable.swift

//
//  JSONSerialisable.swift
//  Slide the Box
//
//  Created by Alex Morgan on 04/01/2017.
//  Copyright © 2017 Alex Morgan. All rights reserved.
//

import Foundation

protocol JSONSerialisable: JSONRepresentable {
}

extension JSONSerialisable {
    var JSONRepresentation: AnyObject {
        var representation = [String: AnyObject]()
        
        for case let (label?, value) in Mirror(reflecting: self).children {
            switch value {
            case let value as JSONRepresentable:
                representation[label] = value.JSONRepresentation
                
            case let value as NSObject:
                representation[label] = value
                
            default:
                // Ignore any unserializable properties
                break
            }
        }
        
        return representation as AnyObject
    }
}

extension JSONSerialisable {
    func toJSON() -> String? {
        let representation = JSONRepresentation
        
        guard JSONSerialization.isValidJSONObject(representation) else {
            return nil
        }
        
        do {
            let data = try JSONSerialization.data(withJSONObject: representation, options: [])
            return String(data: data, encoding: String.Encoding.utf8)
        } catch {
            return nil
        }
    }
}