//
//  KMUserListItemView.swift
//  PDF Reader Pro Edition
//
//  Created by tangchao on 2024/7/11.
//

import Cocoa

class KMUserListItemView: NSView, NibLoadable {
    @IBOutlet weak var box: NSBox!
    @IBOutlet weak var scrollView: NSScrollView!
    @IBOutlet weak var tableView: NSTableView!
    
    @IBOutlet weak var boxTopConst: NSLayoutConstraint!

    @IBOutlet weak var tipBox: NSBox!
    @IBOutlet weak var tipIv: NSImageView!
    @IBOutlet weak var tipLabel: NSTextField!
    
    var validateDropCallback: ((_ info: NSDraggingInfo, _ row: Int, _ dropOperation: NSTableView.DropOperation)->NSDragOperation)?
    var acceptDropCallback: ((_ info: NSDraggingInfo, _ row: Int, _ dropOperation: NSTableView.DropOperation)->Bool)?
    
    var datas: [KMUserFbListModel] = [] {
        didSet {
            self.wantsLayer = true
            self.layer?.borderWidth = 1
            if self.datas.isEmpty {
                self.layer?.backgroundColor = .clear
                self.layer?.borderColor = .clear
                self.layer?.cornerRadius = 0
            } else {
                self.layer?.backgroundColor = NSColor(white: 0, alpha: 0.05).cgColor
                self.layer?.borderColor = NSColor(white: 0, alpha: 0.05).cgColor
                self.layer?.cornerRadius = 4
            }
            
            self.tableView.reloadData()
        }
    }
    
    var itemClick: ((_ idx: Int, _ param: Any?)->Void)?
    
    override func awakeFromNib() {
        super.awakeFromNib()
        
        self.box.borderWidth = 0
        
        self.tableView.delegate = self
        self.tableView.dataSource = self
        self.tableView.rowHeight = 24
        self.tableView.register(.init(nibNamed: "KMUserListItemCellView", bundle: nil), forIdentifier: .init("KMUserListItemCellView"))
//        self.tableView.enclosingScrollView.
        self.tableView.enclosingScrollView?.wantsLayer = true
        self.tableView.enclosingScrollView?.borderType = .noBorder
//        self.tableView.enclosingScrollView?.layer?.cornerRadius = 5
//        self.tableView.enclosingScrollView?.layer?.masksToBounds = true
        self.tableView.enclosingScrollView?.drawsBackground = false
        self.tableView.enclosingScrollView?.backgroundColor = .clear
        self.tableView.enclosingScrollView?.layer?.backgroundColor = .clear
        self.tableView.backgroundColor = .clear
        self.tableView.registerForDraggedTypes([.fileURL])
        
        self.tipBox.borderWidth = 0
        self.tipBox.cornerRadius = 0
//        self.tipBox.fillColor = NSColor.km_init(hex: "#FEE4EC")
        self.tipIv.image = NSImage(named: "KMImageNameUserFbFileSizeTipIcon")
        self.tipBox.isHidden = true
    }
    
    func showTip(tip: String) {
        self.tipLabel.stringValue = tip
        
        self.boxTopConst.animator().constant = 30
        DispatchQueue.main.async {
            self.tipBox.isHidden = false
        }
        
        DispatchQueue.main.asyncAfter(deadline: .now()+2) {
            self.hiddenTip()
        }
    }
    
    func hiddenTip() {
        self.boxTopConst.animator().constant = 0
        DispatchQueue.main.async {
            self.tipBox.isHidden = true
        }
    }
}

extension KMUserListItemView: NSTableViewDelegate, NSTableViewDataSource {
    func numberOfRows(in tableView: NSTableView) -> Int {
        return self.datas.count
    }
    
    func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
        var cell = tableView.makeView(withIdentifier: .init("KMUserListItemCellView"), owner: self)
        if cell == nil {
            cell = KMUserListItemCellView.createFromNib()
//            cell?.wantsLayer = true
//            cell?.layer?.backgroundColor = NSColor.red.cgColor
        }
        
        let cellView = cell as? KMUserListItemCellView
        let model = self.datas[row]
        cellView?.fileNameLabel.stringValue = model.fileName ?? ""
        cellView?.fileSizeLabel.stringValue = model.fileSizeString ?? ""
        cellView?.button.image = NSImage(named: "KMImageNameUserFbDeleteIcon")
        cellView?.box.fillColor = .clear
        
        cellView?.itemClick = { [weak self] idx in
            if idx == 1 { // remove
                self?.itemClick?(row, nil)
            }
        }
        
        return cell
    }
    
    func tableView(_ tableView: NSTableView, validateDrop info: NSDraggingInfo, proposedRow row: Int, proposedDropOperation dropOperation: NSTableView.DropOperation) -> NSDragOperation {
        if let block = self.validateDropCallback {
            return block(info, row, dropOperation)
        }
        return .generic
    }
    
    func tableView(_ tableView: NSTableView, acceptDrop info: NSDraggingInfo, row: Int, dropOperation: NSTableView.DropOperation) -> Bool {
        if let block = self.acceptDropCallback {
            return block(info, row, dropOperation)
        }
        
        let pborad = info.draggingPasteboard
        guard let _ = pborad.availableType(from: [.fileURL]) else {
            return false
        }
        guard let items = pborad.pasteboardItems else {
            return false
        }
        var fileNames: [String] = []
        for item in items {
            let string = item.propertyList(forType: .fileURL) as? String ?? ""
            fileNames.append(string)
        }
        
        return true
    }
}