PDF_Office/PDF Office/PDF Master/Class/DigtalSignature/ViewControllers/CDSignatureCertificateStateViewController.swift

//
//  CDSignatureCertificateStateViewController.swift
//  PDF Reader Pro Edition
//
//  Created by Niehaoyu on 2023/10/20.
//

import Cocoa

class CDSignatureCertificateStateViewController: NSViewController {

    @IBOutlet weak var titleLabel: NSTextField!
    @IBOutlet weak var imageView: NSImageView!
    @IBOutlet weak var subTitleLabel: NSTextField!
    @IBOutlet weak var subDes1Label: NSTextField!
    @IBOutlet weak var subDes2Label: NSTextField!
    @IBOutlet weak var propertiesBtn: NSButton!
    @IBOutlet weak var closeBtn: NSButton!
    
    var signature: CPDFSignature!
    var pdfListView: CPDFDigtalView!
    
    var actionBlock: ((_ stateVC: CDSignatureCertificateStateViewController, _ actionType: DSignatureActionType)->Void)?
 
    override func viewDidAppear() {
        super.viewDidAppear()
        
        self.reloadData()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        
        self.titleLabel.stringValue = NSLocalizedString("Signature Validation Status", comment: "")
        
        self.reloadData()
    }
    
    func reloadData () {
        let signer = self.signature.signers.first
        let isSignVerified = signer?.isSignVerified
        let isCertTrusted = signer?.isCertTrusted
        if isSignVerified == true && isCertTrusted == true {
            self.imageView.image = NSImage(named: "ImageNameSigntureLargeVerifySuccess")
            
            let cer = signer?.certificates.first
            let CNStr = cer?.subjectDict["CN"] as? String ?? ""
            self.subTitleLabel.stringValue = String(format: NSLocalizedString("Signature is VALID, signed by %@.", comment: ""), CNStr)
            self.subDes1Label.stringValue = String(format: "- %@",NSLocalizedString("The document has not been modified since this signature was applied.", comment: ""))
            self.subDes2Label.stringValue = String(format: "- %@",NSLocalizedString("The signer's identity is valid.", comment: ""))
            
        } else if isSignVerified == true && isCertTrusted == false {
            self.imageView.image = NSImage(named: "ImageNameSigntureLargeTrustedFailure")
            
            self.subTitleLabel.stringValue = NSLocalizedString("Signature is invalid", comment: "")
            self.subDes1Label.stringValue = String(format: "- %@",NSLocalizedString("The document has not been modified since this signature was applied.", comment: ""))
            self.subDes2Label.stringValue = String(format: "- %@",NSLocalizedString("The signer's identity is unknown because it has not been included in your list of trusted certificates and none of its parent certificates are trusted certificates.", comment: ""))
            
        } else if isSignVerified == false && isCertTrusted == false {
            self.imageView.image = NSImage(named: "ImageNameSigntureLargeVerifyFailure")
            
            self.subTitleLabel.stringValue = NSLocalizedString("Signature is invalid", comment: "")
            self.subDes1Label.stringValue = String(format: "- %@",NSLocalizedString("The document has not been modified since this signature was applied.", comment: ""))
            self.subDes2Label.stringValue = String(format: "- %@",NSLocalizedString("The signer's identity is invalid.", comment: ""))
        } else {
            self.imageView.image = NSImage(named: "ImageNameSigntureLargeVerifyFailure")
            
            self.subTitleLabel.stringValue = NSLocalizedString("Signature is invalid", comment: "")
            self.subDes1Label.stringValue = String(format: "- %@",NSLocalizedString("The revision of the document that was covered by this signature has not been altered; however, there have been subsequent changes to the document.", comment: ""))
            self.subDes2Label.stringValue = String(format: "- %@",NSLocalizedString("Click Signature Properties, then it will show what is covered by this signature.", comment: ""))
        }
        
        self.propertiesBtn.title = NSLocalizedString("Signature Properties...", comment: "")
        self.closeBtn.title = NSLocalizedString("Close", comment: "")
        
        self.subTitleLabel.textColor = NSColor.labelColor
        self.titleLabel.textColor = NSColor.labelColor
        self.subDes1Label.textColor = NSColor.labelColor
        self.subDes2Label.textColor = NSColor.labelColor
    }
    
    //MARK: IBAction
    @IBAction func buttonItemClick_Properties(_ sender: NSButton) {
        guard let callBack = self.actionBlock else {
            return
        }
        callBack(self, .confirm)
    }
    
    @IBAction func buttonItemClick_Close(_ sender: Any) {
        guard let callBack = self.actionBlock else {
            return
        }
        callBack(self, .cancel)
    }
    
}