using System.Windows.Forms;
using System.Collections;
using nsoftware.SecureBlackbox;

namespace PDFVerifierDemo
{
	/// <summary>
	/// Summary description for ValidationResultForm.
	/// </summary>
	public class ValidationResultForm : System.Windows.Forms.Form
	{
        private PDFVerifier FVerifier = null;
        private ArrayList objects;
        private System.Windows.Forms.Button btnClose;
        private ComboBox cbSignatures;
        private Panel pSignatureInfo;
        private Button btnExtractSigned;
        private Label lTimestamp;
        private TextBox tbReason;
        private Label lReason;
        private TextBox tbAuthorName;
        private Label lAuthorName;
        private Label lTitle;
        private Label lChainValidationResult;
        private Label lSignatureValidationResult;
        private SaveFileDialog saveDialog;

        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public ValidationResultForm()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            // 
            objects = new ArrayList();
        }

        public void Init(PDFVerifier verifier)
        {
            FVerifier = verifier;

            cbSignatures.Items.Clear();
            objects.Clear();
            pSignatureInfo.Visible = false;
            for (int i = 0; i < verifier.Signatures.Count; i++)
            {
                cbSignatures.Items.Add(verifier.Signatures[i].SignatureName);
                objects.Add(verifier.Signatures[i]);
            }
        }

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.btnClose = new System.Windows.Forms.Button();
            this.cbSignatures = new System.Windows.Forms.ComboBox();
            this.pSignatureInfo = new System.Windows.Forms.Panel();
            this.lChainValidationResult = new System.Windows.Forms.Label();
            this.lSignatureValidationResult = new System.Windows.Forms.Label();
            this.btnExtractSigned = new System.Windows.Forms.Button();
            this.lTimestamp = new System.Windows.Forms.Label();
            this.tbReason = new System.Windows.Forms.TextBox();
            this.lReason = new System.Windows.Forms.Label();
            this.tbAuthorName = new System.Windows.Forms.TextBox();
            this.lAuthorName = new System.Windows.Forms.Label();
            this.lTitle = new System.Windows.Forms.Label();
            this.saveDialog = new System.Windows.Forms.SaveFileDialog();
            this.pSignatureInfo.SuspendLayout();
            this.SuspendLayout();
            // 
            // btnClose
            // 
            this.btnClose.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.btnClose.DialogResult = System.Windows.Forms.DialogResult.OK;
            this.btnClose.Location = new System.Drawing.Point(256, 321);
            this.btnClose.Name = "btnClose";
            this.btnClose.Size = new System.Drawing.Size(75, 25);
            this.btnClose.TabIndex = 4;
            this.btnClose.Text = "Close";
            // 
            // cbSignatures
            // 
            this.cbSignatures.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cbSignatures.Location = new System.Drawing.Point(12, 25);
            this.cbSignatures.Name = "cbSignatures";
            this.cbSignatures.Size = new System.Drawing.Size(312, 21);
            this.cbSignatures.TabIndex = 7;
            this.cbSignatures.SelectedIndexChanged += new System.EventHandler(this.cbSignatures_SelectedIndexChanged);
            // 
            // pSignatureInfo
            // 
            this.pSignatureInfo.Controls.Add(this.lChainValidationResult);
            this.pSignatureInfo.Controls.Add(this.lSignatureValidationResult);
            this.pSignatureInfo.Controls.Add(this.btnExtractSigned);
            this.pSignatureInfo.Controls.Add(this.lTimestamp);
            this.pSignatureInfo.Controls.Add(this.tbReason);
            this.pSignatureInfo.Controls.Add(this.lReason);
            this.pSignatureInfo.Controls.Add(this.tbAuthorName);
            this.pSignatureInfo.Controls.Add(this.lAuthorName);
            this.pSignatureInfo.Location = new System.Drawing.Point(12, 57);
            this.pSignatureInfo.Name = "pSignatureInfo";
            this.pSignatureInfo.Size = new System.Drawing.Size(312, 245);
            this.pSignatureInfo.TabIndex = 6;
            this.pSignatureInfo.Visible = false;
            // 
            // lChainValidationResult
            // 
            this.lChainValidationResult.Location = new System.Drawing.Point(0, 150);
            this.lChainValidationResult.Name = "lChainValidationResult";
            this.lChainValidationResult.Size = new System.Drawing.Size(288, 16);
            this.lChainValidationResult.TabIndex = 10;
            this.lChainValidationResult.Text = "Chain Validation Result:";
            // 
            // lSignatureValidationResult
            // 
            this.lSignatureValidationResult.Location = new System.Drawing.Point(0, 125);
            this.lSignatureValidationResult.Name = "lSignatureValidationResult";
            this.lSignatureValidationResult.Size = new System.Drawing.Size(288, 16);
            this.lSignatureValidationResult.TabIndex = 9;
            this.lSignatureValidationResult.Text = "Signature Validation Result:";
            // 
            // btnExtractSigned
            // 
            this.btnExtractSigned.Location = new System.Drawing.Point(175, 210);
            this.btnExtractSigned.Name = "btnExtractSigned";
            this.btnExtractSigned.Size = new System.Drawing.Size(130, 25);
            this.btnExtractSigned.TabIndex = 8;
            this.btnExtractSigned.Text = "Extract signed version";
            this.btnExtractSigned.Click += new System.EventHandler(this.btnExtractSigned_Click);
            // 
            // lTimestamp
            // 
            this.lTimestamp.Location = new System.Drawing.Point(0, 96);
            this.lTimestamp.Name = "lTimestamp";
            this.lTimestamp.Size = new System.Drawing.Size(288, 16);
            this.lTimestamp.TabIndex = 7;
            this.lTimestamp.Text = "Timestamp:";
            // 
            // tbReason
            // 
            this.tbReason.Location = new System.Drawing.Point(0, 64);
            this.tbReason.Name = "tbReason";
            this.tbReason.ReadOnly = true;
            this.tbReason.Size = new System.Drawing.Size(312, 20);
            this.tbReason.TabIndex = 4;
            // 
            // lReason
            // 
            this.lReason.Location = new System.Drawing.Point(0, 48);
            this.lReason.Name = "lReason";
            this.lReason.Size = new System.Drawing.Size(280, 16);
            this.lReason.TabIndex = 3;
            this.lReason.Text = "Reason for signing:";
            // 
            // tbAuthorName
            // 
            this.tbAuthorName.Location = new System.Drawing.Point(0, 16);
            this.tbAuthorName.Name = "tbAuthorName";
            this.tbAuthorName.ReadOnly = true;
            this.tbAuthorName.Size = new System.Drawing.Size(312, 20);
            this.tbAuthorName.TabIndex = 2;
            // 
            // lAuthorName
            // 
            this.lAuthorName.Location = new System.Drawing.Point(0, 0);
            this.lAuthorName.Name = "lAuthorName";
            this.lAuthorName.Size = new System.Drawing.Size(280, 16);
            this.lAuthorName.TabIndex = 0;
            this.lAuthorName.Text = "Author\'s name:";
            // 
            // lTitle
            // 
            this.lTitle.Location = new System.Drawing.Point(12, 9);
            this.lTitle.Name = "lTitle";
            this.lTitle.Size = new System.Drawing.Size(320, 16);
            this.lTitle.TabIndex = 5;
            this.lTitle.Text = "The document contains the following digital signatures:";
            // 
            // saveDialog
            // 
            this.saveDialog.Filter = "PDF documents (*.pdf)|*.pdf|All files (*.*)|*.*";
            this.saveDialog.InitialDirectory = ".";
            // 
            // ValidationResultForm
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(337, 356);
            this.Controls.Add(this.cbSignatures);
            this.Controls.Add(this.pSignatureInfo);
            this.Controls.Add(this.lTitle);
            this.Controls.Add(this.btnClose);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "ValidationResultForm";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
            this.Text = "Validation results";
            this.pSignatureInfo.ResumeLayout(false);
            this.pSignatureInfo.PerformLayout();
            this.ResumeLayout(false);

		}
        #endregion

        private void cbSignatures_SelectedIndexChanged(object sender, System.EventArgs e)
        {
            if (cbSignatures.SelectedIndex != -1)
            {
                PDFSignature sig = (PDFSignature)objects[cbSignatures.SelectedIndex];
                if (sig.AuthorName.Length > 0)
                    tbAuthorName.Text = sig.AuthorName;
                else
                    tbAuthorName.Text = "<not specified>";

                if (sig.Reason.Length > 0)
                    tbReason.Text = sig.Reason;
                else
                    tbReason.Text = "<not specified>";
                lTimestamp.Text = "Timestamp: " + sig.ClaimedSigningTime.ToString() + " (local)";
                switch (sig.SignatureValidationResult)
                {
                    case SignatureValidities.svtValid: lSignatureValidationResult.Text = "Signature Validation Result: Valid"; break;
                    case SignatureValidities.svtCorrupted: lSignatureValidationResult.Text = "Signature Validation Result: Corrupted"; break;
                    case SignatureValidities.svtSignerNotFound: lSignatureValidationResult.Text = "Signature Validation Result: SignerNotFound"; break;
                    case SignatureValidities.svtFailure: lSignatureValidationResult.Text = "Signature Validation Result: Failure"; break;
                    default: lSignatureValidationResult.Text = "Signature Validation Result: Unknown"; break;
                }
                switch (sig.ChainValidationResult)
                {
                    case ChainValidities.cvtValid: lChainValidationResult.Text = "Chain Validation Result: Valid"; break;
                    case ChainValidities.cvtValidButUntrusted: lChainValidationResult.Text = "Chain Validation Result: ValidButUntrusted"; break;
                    case ChainValidities.cvtInvalid: lChainValidationResult.Text = "Chain Validation Result: Invalid"; break;
                    case ChainValidities.cvtCantBeEstablished: lChainValidationResult.Text = "Chain Validation Result: CantBeEstablished"; break;
                }

                pSignatureInfo.Visible = true;
            }
            else
                pSignatureInfo.Visible = false;
        }

        private void btnExtractSigned_Click(object sender, System.EventArgs e)
        {
            if (cbSignatures.SelectedIndex == -1) return;

            if (saveDialog.ShowDialog() == DialogResult.OK)
            {
                FVerifier.OutputFile = saveDialog.FileName;
                FVerifier.GetSignedVersion(cbSignatures.SelectedText);
            }
        }
    }
}