import Cocoa

class ViewController: NSViewController , NSTableViewDelegate , NSTableViewDataSource{
    func changeTo(_ pattern: String) -> Bool {
        if(pattern=="true"){
            return true
        }else {
            return false
        }
        
    }
    struct Transaction: Decodable {
        
        let node_title: String
        let content: Content
        let type:String
        
    }
    struct Content: Decodable {
        
        let id: String
        let title: String
        let type_transaction_id:Int
        let text: String
        let path: String
        let name: String
        let created_at: String
        let size: Int
        
    }
   @IBOutlet weak var fileView: NSTableView!
    var transactions:[Transaction] = [Transaction]()
    func numberOfRows(in tableView: NSTableView) -> Int {

        return self.transactions.count
    }
    func tableView(_ tableView: NSTableView, isGroupRow row: Int) -> Bool {

        return self.changeTo(transactions[row].type)
    }
    func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
        var text: String = ""
  
        let item = transactions[row]
        text = item.node_title
       
        if(item.type=="true"){
            if let groupcell = fileView.makeView(withIdentifier: NSUserInterfaceItemIdentifier("groupFileCellID"), owner: nil) as? GroupViewCell {
                groupcell.groupHeader.stringValue = item.node_title
                groupcell.groupHeader.isEditable = false
                groupcell.groupHeader.font = NSFont.boldSystemFont(ofSize: 16)
                groupcell.groupHeader.backgroundColor =  NSColor(hex:"F7F7F7", alpha: 1.0)
                groupcell.setFrameSize(NSSize(width:400,height:100))
                
                return  groupcell
            }
            
        }else{
            if let cell = fileView.makeView(withIdentifier: NSUserInterfaceItemIdentifier("informFileCellID"), owner: nil) as? FileViewCell {
                
                if(String(item.content.path)==""){
                }else{
                    if(item.content.type_transaction_id==2){
                        cell.pictureView.image=NSImage(byReferencing:URL(string:"https://programmerdesign.com"+item.content.path)!)
                    }else{
                        cell.pictureView.image=NSImage(byReferencing:URL(string:"https://programmerdesign.com/images/nopic.jpg")!)
                    }
                    
                }
            
                cell.fileName.stringValue = item.content.title
                cell.fileName.isEditable = false
                cell.fileName.backgroundColor = NSColor.clear
                
                
                let size_mb:Float = Float(item.content.size)/(1024*1024)
                cell.fileSize.stringValue = "ขนาดไฟล์ "+String(size_mb)+" MB"
                cell.fileSize.isEditable = false
                cell.fileSize.backgroundColor = NSColor.clear
                
                return cell
            }
            
        }
        
        return nil
    }
    override func viewDidLoad() {
        super.viewDidLoad()
     
        fileView.delegate = self
        fileView.dataSource = self
        
  
        
    }
}
class FileViewCell: NSTableCellView {

    @IBOutlet weak var pictureView: NSImageView!
    @IBOutlet weak var fileSize: NSTextField!
    @IBOutlet weak var fileName: NSTextField!
}
class GroupViewCell: NSTableCellView {
    @IBOutlet weak var groupHeader: NSTextField!
}