using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string input = @"{

________________________________

From: faz@airespring.com <faz@airespring.com>

Sent: Wednesday, November 22, 2023 9:27 PM

To: fortianalyzer-alerts <fortianalyzer-alerts@airespring.com>; Josue Escalante <Josue.Escalante@airespring.com>

Subject: [External] FortiSwitch is Offline (medium switch-controller alert FortiSwitch is Offline 1385583_Airespring_COGS_MSE_LAB1(FortiGate-40F))

​

Device  1385583_Airespring_COGS_MSE_LAB1

Severity        medium

From    USLA-FAZ01P(FAZ-VMTM20010246)

Trigger Forti Switch - DOWN

Filter

​

Log Details:

logver  0700120523      idseq   199977991999062695

Time Stamp      2023-11-22 13:27:36     Device ID       FGT40FTK2209G99N

Device Name     FortiGate-40F   Virtual Domain  root

Date    2023-11-22      Time    13:27:06

eventtime       1700688426686115790     Time Zone       -0800

Log ID  0115022904      Type    event

Sub Type        switch-controller       Level   notice

Log Description CAPUTP session status notification      User    Switch-Controller

User Interface  cu_acd  SN      S124FFTF23020941

Name    S124FFTF23020941        Message S124FFTF23020941 echo message timed out

Action  session-leave   Source IP       10.255.1.2

}";

​

        // Extracting Device ID

        string deviceIdPattern = @"Device ID\s+(\S+)";

        Match deviceIdMatch = Regex.Match(input, deviceIdPattern);

​

        if (deviceIdMatch.Success)

        {

            string deviceId = deviceIdMatch.Groups[1].Value;

            Console.WriteLine("Device ID: " + deviceId);

        }

        else

        {

            Console.WriteLine("Device ID not found.");

        }

​

        // Extracting number before the first underscore and assigning it to CustomerNumber

        string deviceNumberPattern = @"Device\s+(\d+)_";

        Match deviceNumberMatch = Regex.Match(input, deviceNumberPattern);

​

        if (deviceNumberMatch.Success)

        {

            string customerNumber = deviceNumberMatch.Groups[1].Value;

            Console.WriteLine("Customer Number: " + customerNumber);

        }

        else

        {

            Console.WriteLine("Customer Number not found.");

        }

    }

}