//
//  KMToolbarPageInputItemView.swift
//  PDF Reader Pro
//
//  Created by User-Tangchao on 2024/10/12.
//

import Cocoa

class KMToolbarPageInputItemView: NSView {
    private lazy var contentView_: NSView = {
        let view = NSView()
        return view
    }()
    
    private lazy var inputBox_: NSBox = {
        let box = NSBox()
        box.boxType = .custom
        return box
    }()
    
    private lazy var inputTF_: NSTextField = {
        let view = NSTextField()
        view.formatter = NumberFormatter()
        view.drawsBackground = false
        view.isBordered = false
        view.focusRingType = .none
        view.delegate = self
        return view
    }()
    
    private lazy var numberLabel_: NSTextField = {
        let view = NSTextField(labelWithString: "")
        view.font = KMToolbarMainItemView.textFont
        view.textColor = KMAppearance.subtitleColor()
        return view
    }()
    
    private lazy var titleLabel_: NSTextField = {
        let view = NSTextField(labelWithString: NSLocalizedString("Page", comment: ""))
        view.font = KMToolbarMainItemView.textFont
        view.textColor = KMAppearance.subtitleColor()
        return view
    }()
    
    var totalNumber: Int = 0 {
        didSet {
            self.numberLabel_.stringValue = "/" + "\(self.totalNumber)"
        }
    }
    
    var currentPageIndex: Int = 0 {
        didSet {
            self.inputTF_.stringValue = "\(self.currentPageIndex)"
        }
    }
    
    var enterAction: ((String)->Void)?
    
    convenience init() {
        self.init(frame: NSMakeRect(0, 0, 80, 40))
    }
    
    override init(frame frameRect: NSRect) {
        super.init(frame: frameRect)
        
        self.initSubviews()
    }
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
        
        self.initSubviews()
    }
    
    override func draw(_ dirtyRect: NSRect) {
        super.draw(dirtyRect)

        // Drawing code here.
    }
    
    func initSubviews() {
        self.addSubview(self.contentView_)
                
        self.contentView_.addSubview(self.inputBox_)
        self.contentView_.addSubview(self.numberLabel_)
        self.contentView_.addSubview(self.titleLabel_)
        
        self.inputBox_.contentView?.addSubview(self.inputTF_)
        
        self.contentView_.km_add_inset_constraint()
        self.inputBox_.km_add_leading_constraint(constant: 2)
        self.inputBox_.km_add_top_constraint(constant: 2)
        self.inputBox_.km_add_width_constraint(constant: 45)
        self.inputBox_.km_add_height_constraint(constant: 22)
        self.numberLabel_.km_add_leading_constraint(equalTo: self.inputBox_, attribute: .trailing, constant: 2)
        self.numberLabel_.km_add_centerY_constraint(equalTo: self.inputBox_)
        self.titleLabel_.km_add_top_constraint(equalTo: self.inputBox_, attribute: .bottom, constant: 2)
        self.titleLabel_.km_add_centerX_constraint()
        
        self.inputTF_.km_add_leading_constraint()
        self.inputTF_.km_add_centerX_constraint()
        self.inputTF_.km_add_centerY_constraint()
    }
}

extension KMToolbarPageInputItemView: NSTextFieldDelegate {
//    func controlTextDidEndEditing(_ obj: Notification) {
//
//    }
    
    func control(_ control: NSControl, textView: NSTextView, doCommandBy commandSelector: Selector) -> Bool {
        switch commandSelector {
        case #selector(NSResponder.insertNewline(_:)):
            if let inputView = control as? NSTextField {
                if inputView == self.inputTF_ {
                    self.enterAction?(self.inputTF_.stringValue)
                }
            }
            return true
        default:
            return false
        }
    }
}