//
//  NavigationTitleView.swift
//  PaiLiBo
//
//  Created by SeanXu on 2019/7/9.
//  Copyright © 2019 DemoOrg. All rights reserved.
//

import UIKit
import SnapKit

class NavigationTitleView: UIView {
    let titleLabel = UILabel(frame: .zero)
    let imageView = UIImageView(frame: .zero)
    let spacingView = UIView(frame: .zero)
    
    override var intrinsicContentSize: CGSize {
        return UIView.layoutFittingExpandedSize
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        let stackView = UIStackView(arrangedSubviews: [titleLabel, imageView])
        stackView.alignment = .center
        stackView.spacing = 4.0
        
        titleLabel.font = UIFont.systemFont(ofSize: 18, weight: .bold)
        titleLabel.textColor = UIColor.black
        titleLabel.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
        titleLabel.setContentHuggingPriority(.defaultLow, for: .horizontal)
        imageView.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
        imageView.setContentHuggingPriority(.defaultHigh, for: .horizontal)
        
        let contentView = UIView(frame: .zero)
        addSubview(spacingView)
        addSubview(contentView)
        contentView.addSubview(stackView)
        
        spacingView.snp.makeConstraints { make in
            make.left.top.bottom.equalToSuperview()
            make.width.equalTo(0)
        }
        contentView.snp.makeConstraints { make in
            make.left.equalTo(spacingView.snp.right)
            make.top.bottom.right.equalToSuperview()
        }
        stackView.snp.makeConstraints { make in
            make.left.greaterThanOrEqualToSuperview()
            make.right.lessThanOrEqualToSuperview()
            make.top.bottom.equalToSuperview()
            make.center.equalToSuperview()
        }
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    func configure(spacing: CGFloat) {
        spacingView.snp.updateConstraints { make in
            make.width.equalTo(spacing)
        }
        layoutIfNeeded()
    }
}