//
//  KMMergeTableViewCell.swift
//  PDF Reader Pro
//
//  Created by lizhe on 2023/11/8.
//

import Cocoa

typealias KMMergeTableViewCellRemoveAction = (_ view: KMMergeTableViewCell, _ fileModel: KMFileAttribute) -> Void

class KMMergeTableViewCell: NSTableCellView {
    @IBOutlet var contentView: NSView!
    
    @IBOutlet weak var pageCountLabel: NSTextField!
    @IBOutlet weak var indexLabel: NSTextField!
    @IBOutlet weak var fileNameLabel: NSTextField!
    @IBOutlet weak var pageRangeLabel: NSTextField!
    @IBOutlet weak var sizeLabel: NSTextField!
    @IBOutlet weak var fileImageView: NSImageView!
    @IBOutlet weak var pageRangeBox: NSComboBox!
    @IBOutlet weak var deleteButton: NSButton!
    @IBOutlet weak var contentBox: KMBox!
    
    var removeAction: KMMergeTableViewCellRemoveAction?
    
    var index: Int = 1 {
        didSet {
            self.reloadData()
        }
    }
    var fileModel: KMFileAttribute? {
        didSet {
            self.reloadData()
        }
    }
    
    // MARK: 初始化
    override init(frame frameRect: NSRect) {
        super.init(frame: frameRect)
        initContentView()
        setup()
    }
    
    required init?(coder decoder: NSCoder) {
        super.init(coder: decoder)
        initContentView()
        setup()
        fatalError("init(coder:) has not been implemented")
    }
    
    private func initContentView() {
        //绑定xib
        let resource = NSNib(nibNamed: String(describing: self.classForCoder.self),
                             bundle: Bundle(for: self.classForCoder.self))!
        resource.instantiate(withOwner: self, topLevelObjects: nil)
        addSubview(contentView)
        contentView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            contentView.topAnchor.constraint(equalTo: topAnchor),
            contentView.leftAnchor.constraint(equalTo: leftAnchor),
            contentView.rightAnchor.constraint(equalTo: rightAnchor),
            contentView.bottomAnchor.constraint(equalTo: bottomAnchor)])
        contentView.updateConstraintsForSubtreeIfNeeded()
    }
    
    func setup() {
        
        pageRangeBox.removeAllItems()
        pageRangeBox.delegate = self
        pageRangeBox.addItems(withObjectValues: [NSLocalizedString("All Pages", comment: ""),
                                                  NSLocalizedString("Odd Pages Only", comment: ""),
                                                  NSLocalizedString("Even Pages Only", comment: ""),
                                                  NSLocalizedString("e.g. 1,3-5,10", comment: "")])
        pageRangeBox.placeholderString = NSLocalizedString("e.g. 1,3-5,10", comment: "")
        
        self.updateLanguage()
        
        contentBox.moveCallback = { mouseEntered, mouseBox in
            if mouseEntered {
                self.deleteButton.isHidden = false
            } else {
                self.deleteButton.isHidden = true
            }
        }
    }
    
    func reloadData() {
        guard let fileModel = fileModel else { return }
        indexLabel.stringValue = index.description
        fileImageView.image = fileModel.fileImage
        if let oriFilePath = fileModel.oriFilePath {
            fileNameLabel.stringValue = oriFilePath.lastPathComponent
        } else {
            fileNameLabel.stringValue = fileModel.filePath.lastPathComponent
        }
        
        pageCountLabel.stringValue = "\(fileModel.pdfDocument?.pageCount ?? 0)  \(NSLocalizedString("Pages", comment: ""))"
        sizeLabel.stringValue = self.fileSizeString(Float(fileModel.fileSize))
        
        self.pageRangeBox.isEditable = false
        if fileModel.pagesType == .all {
            pageRangeBox.selectItem(at: 0)
        } else if fileModel.pagesType == .odd {
            pageRangeBox.selectItem(at: 1)
        } else if fileModel.pagesType == .even {
            pageRangeBox.selectItem(at: 2)
        } else {
            pageRangeBox.cell?.stringValue = fileModel.pagesString
            self.pageRangeBox.isEditable = true
            window?.makeFirstResponder(pageRangeBox)
        }
    }
    
    func updateLanguage() {
        pageRangeLabel.stringValue = NSLocalizedString("Page Range", comment: "")
    }
    
    @IBAction func removeButtonAction(_ sender: Any) {
        guard let callBack = removeAction else { return }
        guard let fileModel = fileModel else { return }
        
        callBack(self, fileModel)
    }
    
    @IBAction func comboBoxAction(_ sender: NSComboBoxCell) {
        guard let fileModel = fileModel else { return }
        if sender.indexOfSelectedItem >= 0 {
            let type = KMPageRange.init(rawValue: sender.indexOfSelectedItem) ?? .all
            fileModel.pagesType = type
        }
        
        self.pageRangeBox.isEditable = false
        if fileModel.pagesType == .custom {
            fileModel.pagesString = sender.stringValue
            
            self.pageRangeBox.isEditable = true
            window?.makeFirstResponder(pageRangeBox)
        }
    }
}

extension KMMergeTableViewCell: NSComboBoxDelegate {
    
}

extension KMMergeTableViewCell {
    func fileSizeString(_ fSize: Float) -> String {
        let fileSize = fSize / 1024
        let size = fileSize >= 1024 ? (fileSize < 1048576 ? fileSize/1024 : fileSize/1048576.0) : fileSize
        let unit = fileSize >= 1024 ? (fileSize < 1048576 ? "M" : "G") : "K"
        return String(format: "%0.1f %@", size, unit)
    }
}