using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string body = @"

        Meeting Title: Cushman & Wakefield: Portfolio Discussion - Talent Management Services

​

​

Agenda Items:

​

​

Welcome & Introductions (5 min)

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​

Brief introductions and meeting objectives.

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​

Overview of Invited Clubs' Offerings (10 min)

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​

Highlight executive networking, event hosting, and wellness program options.

​

​

Portfolio Needs Discussion (15 min)

​

​

Explore Cushman & Wakefield's objectives for talent management services.

​

​

Discuss key contract areas: tier flexibility, event pricing, and data privacy.

​

​

Case Studies & Success Stories (10 min)

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Share examples of successful partnerships with similar companies.

​

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Contract Review & Next Steps (10 min)

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Review key areas of the contract and address any concerns.

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Outline next steps and schedule a follow-up meeting.

​

​

​

________________________________________________________________________________

​

Microsoft Teams Need help?

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Join the meeting now

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Meeting ID: 250 710 073 256

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Passcode: Fi2QJ7cm

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Dial in by phone

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+1 323-488-2290,,836145058# United States, Los Angeles

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Find a local number

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Phone conference ID: 836 145 058#

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For organizers: Meeting options | Reset dial-in PIN

​

________________________________________________________________________________

        ";

        string cleanbody = CleanBodyPreview(body, true);

        Console.WriteLine(cleanbody);

    }

     static string? CleanBodyPreview(string bodyPreview, bool isMeetingBodyPreview)

    {

        try

        {

            string escapeSequencePattern = @"[\r\n\t]";

            string whitespacePattern = @"\s+";

            string graphMessageEventBreakLine = "__________________";

​

            // Remove substring after the breakline in the body preview which indicates end of the customer content

            int startIndex = bodyPreview.IndexOf(value:graphMessageEventBreakLine , StringComparison.OrdinalIgnoreCase);

            var truncatedBodyPreview = startIndex >= 0 ? bodyPreview[..startIndex] : bodyPreview;

            if (startIndex < 0 && isMeetingBodyPreview)

            {

                // If there is no breakline and this is a meeting body preview, then the rest of the body is just join meeting details

                return string.Empty;

            }

​

            // Replace known escape sequences with whitespaces

            var cleanedAndTruncatedBodyPreview = Regex.Replace(truncatedBodyPreview, escapeSequencePattern, replacement: " ").Trim();

​

            // Replace contiguous whitespaces with a single whitespace

            return Regex.Replace(cleanedAndTruncatedBodyPreview, whitespacePattern, " ");

        }

        catch (Exception ex)

        {

            // [MISSING JUSTIFICATION] TODO: provide justification for suppressed exception

           Console.WriteLine( "Error processing body preview");

            Console.WriteLine(ex);

        }

​

        return bodyPreview;

    }

}