//
//  UIFont+Extension.swift
//  DLSDK
//
//  Created by osell on 2023/4/11.
//

import UIKit

// MARK: - 注册自定义字体数据
public extension UIFont {
    
    /// 自定义字体样式
    /// - Parameters:
    ///   - style: 字体样式
    ///   - size: 字体大小
    convenience init?<Style: FontPlugin>(custom style: Style, size: CGFloat) {
        var name = style.name
        if UIFont.fontNames(forFamilyName: style.name).isEmpty,
           let fontName = UIFont.loadFontName(style.fileName) {
            name = fontName
        }
        self.init(name: name, size: size)
    }
    
    /// 自定义字体样式
    /// - Parameters:
    ///   - style: 字体样式
    ///   - size: 字体大小
    /// - Returns: UIFont
    static func customFont<Style: FontPlugin>(style: Style, size: CGFloat) -> UIFont? {
        UIFont(custom: style, size: size)
    }
    
    /// 加载本地自定义字体
    /// - Parameter name: 字体文件名称
    private static func loadFontName(_ fileName: String) -> String? {
        // 字体文件资源路径
        guard let fontURL = Bundle.main.url(forResource: fileName, withExtension: nil),
              let data = try? Data(contentsOf: fontURL),
              let provider = CGDataProvider(data: data as CFData),
              let font = CGFont(provider) else { return nil }
        
        // 注册字体
        CTFontManagerRegisterGraphicsFont(font, nil)
        return String(font.fullName ?? "")
    }
}

// MARK: - Montserrat
//public extension UIFont {
//    
//    static func montserratLight(size: CGFloat) -> UIFont {
//        Montserrat.light.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .light)
//    }
//    
//    static func montserratRegular(size: CGFloat) -> UIFont {
//        Montserrat.regular.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .regular)
//    }
//    
//    static func montserratMedium(size: CGFloat) -> UIFont {
//        Montserrat.medium.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .medium)
//    }
//    
//    static func montserratSemiBold(size: CGFloat) -> UIFont {
//        Montserrat.semiBold.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .semibold)
//    }
//    
//    static func montserratBold(size: CGFloat) -> UIFont {
//        Montserrat.bold.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .bold)
//    }
//}

// MARK: - DINPro
//public extension UIFont {
//    
//    static func dinProLight(size: CGFloat) -> UIFont {
//        DINPro.light.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .light)
//    }
//    
//    static func dinProRegular(size: CGFloat) -> UIFont {
//        DINPro.regular.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .regular)
//    }
//    
//    static func dinProMedium(size: CGFloat) -> UIFont {
//        DINPro.medium.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .medium)
//    }
//    
//    static func dinProBlack(size: CGFloat) -> UIFont {
//        DINPro.black.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .black)
//    }
//    
//    static func dinProBold(size: CGFloat) -> UIFont {
//        DINPro.bold.font(ofSize: size) ?? UIFont.systemFont(ofSize: size, weight: .bold)
//    }
//}

// MARK: - FontPlugin
public protocol FontPlugin {
    /// 字体名称
    var name: String { get }
    /// 字体文件名
    var fileName: String { get }
    /// 返回该类型大小字体
    func font(ofSize: CGFloat) -> UIFont?
}