HeaderFormatter, through the refactorings

1.swift

struct HeaderFormatter {
    
    var text: String
    
    var attributedString: NSAttributedString? {
        guard let font = UIFont.champion(ofSize: 32) else { return nil }
        let attributes: [NSString : AnyObject] = [NSFontAttributeName as NSString: font, NSForegroundColorAttributeName as NSString: UIColor.black, NSKernAttributeName as NSString : 1.5 as AnyObject]
        return NSAttributedString(string: text, attributes: attributes as [String : Any]?)
    }

    
}

2.swift

struct HeaderFormatter {
    
    var text: String
    
    var attributedString: NSAttributedString? {
        guard let font = UIFont.champion(ofSize: 30) else { return nil }
        let attributes: [String : AnyObject] = [
            NSFontAttributeName as String: font,
            NSForegroundColorAttributeName as String: UIColor.black,
            NSKernAttributeName as String : 1.5 as AnyObject
        ]
        return NSAttributedString(string: text.uppercased(), attributes: attributes)
    }
    
}

struct SubtitleFormatter {
    
    var text: String
    
    var attributedString: NSAttributedString? {
        guard let font = UIFont.dinBold(ofSize: 14) else { return nil }
        let attributes: [String : AnyObject] = [
            NSFontAttributeName as String: font,
            NSForegroundColorAttributeName as String: UIColor.lightGray
        ]
        return NSAttributedString(string: text.uppercased(), attributes: attributes)
    }
    
}

3.swift

enum TitleType {
    case header
    case subtitle
}

struct TitleFormatter {
    
    var text: String
    var type: TitleType
    
    var attributedString: NSAttributedString? {
        
        switch type {
        case .header:
            guard let font = UIFont.champion(ofSize: 30) else { return nil }
            let attributes: [String : AnyObject] = [
                NSFontAttributeName as String: font,
                NSForegroundColorAttributeName as String: UIColor.black,
                NSKernAttributeName as String : 1.5 as AnyObject
            ]
            return NSAttributedString(string: text.uppercased(), attributes: attributes)
        case .subtitle:
            guard let font = UIFont.dinBold(ofSize: 14) else { return nil }
            let attributes: [String : AnyObject] = [
                NSFontAttributeName as String: font,
                NSForegroundColorAttributeName as String: UIColor.lightGray
            ]
            return NSAttributedString(string: text.uppercased(), attributes: attributes)
        }

    }
    
}

4.swift

//
//  TitleFormatter.swift
//  Urban Archive
//
//  Created by Katie Smillie on 10/10/16.
//  Copyright © 2016 Urban Archive. All rights reserved.
//
import Foundation
import UIKit

enum TextType {
    
    case smallTitle
    case bodyText
    case pageTitle
    
    var font: UIFont {
        switch self {
        case .smallTitle:
            return UIFont.dinBold(ofSize: 8)
        case .bodyText:
            return UIFont.dinLight(ofSize: 14)
        case .pageTitle:
            return UIFont.dinBold(ofSize: 28)
            
        }
    }
    
    var attributes: [String : AnyObject]? {
        switch self {
        case .smallTitle:
            return [NSFontAttributeName as String: font,
                    NSForegroundColorAttributeName as String: UIColor.uaLightGray(),
                    NSKernAttributeName as String : 1.3 as AnyObject]
        case .bodyText:
            let paragraphStyle = NSMutableParagraphStyle()
            paragraphStyle.lineSpacing = 4
            return [NSFontAttributeName as String: font,
                    NSParagraphStyleAttributeName as String: paragraphStyle,
                    NSForegroundColorAttributeName as String: UIColor.uaGray()]
        case .pageTitle:
            let paragraphStyle = NSMutableParagraphStyle()
            paragraphStyle.lineSpacing = 0.8
            return [NSFontAttributeName as String: font,
                    NSParagraphStyleAttributeName as String: paragraphStyle,
                    NSForegroundColorAttributeName as String: UIColor.black]
        }
    }
    
}


struct TextFormatter {
    
    enum FontCase {
        case noChange
        case uppercase
        
        func transform(_ string: String) -> String {
            switch self {
            case .noChange: return string
            case .uppercase: return string.uppercased()
            }
        }
    }
    
    var text: String
    var type: TextType
    var fontCase: FontCase
    
    init(text: String, type: TextType, fontCase: FontCase = .noChange) {
        self.text = text
        self.type = type
        self.fontCase = fontCase
    }
    
    var attributedString: NSAttributedString? {
        return NSAttributedString(string: fontCase.transform(text), attributes: type.attributes)
    }
    
    
}