//
//  String+Attributed.swift
//  ToMove
//
//  Created by Saveliy Stavitsky on 4/26/20.
//  Copyright © 2020 Saveliy Stavitsky. All rights reserved.
//

import UIKit

// MARK: - REFACTOR

typealias AttributedString = NSMutableAttributedString

extension UIFont {
    enum Style: String {
        case regular = "Regular"
        case medium = "Medium"
        case bold = "Bold"
    }
    
    static func font(style: Style, size: CGFloat) -> UIFont { UIFont(name: "GolosUI-\(style.rawValue)", size: size)! }
}

extension String {
    var attributed: AttributedString { .init(string: self) }
    func attributed(
        style: UIFont.Style = .regular,
        size: CGFloat = 12,
        color: UIColor = Asset.textGranite.color,
        alignment: NSTextAlignment = .left
    ) -> AttributedString {
        let paragraph = NSMutableParagraphStyle()
        paragraph.alignment = alignment
        return .init(string: self, attributes: [
            .font: UIFont.font(style: style, size: size),
            .foregroundColor: color,
            .paragraphStyle: paragraph
        ])
    }
    func attributed(named: String, color: UIColor = Asset.textGranite.color) -> AttributedString {
        let comps = named.components(separatedBy: "_")
        guard comps.count == 2, (Int(comps[1]) ?? 0) > 6 else { return attributed }
        return attributed(style: ([
            "regular": .regular,
            "medium": .medium,
            "bold": .bold
        ] as [String: UIFont.Style])[comps[0]] ?? .regular, size: CGFloat(Int(comps[1]) ?? 0), color: color)
    }
}

extension NSAttributedString {
    
    func applying(attribute: NSAttributedString.Key, value: Any) -> AttributedString {
        let copy = NSMutableAttributedString(attributedString: self)
        copy.addAttribute(attribute, value: value, range: (string as NSString).range(of: string))
        return copy
    }
    
    static func + (lhs: NSAttributedString, rhs: NSAttributedString) -> AttributedString {
        let string: AttributedString = .init(attributedString: lhs) // .configure({ $0.append(lhs) })
        string.append(rhs)
        return .init(attributedString: string)
    }
    
    static func + (lhs: NSAttributedString, rhs: String) -> AttributedString {
        let string = AttributedString(attributedString: lhs)
        string.append(rhs.attributed)
        return .init(attributedString: string)
    }
}