Generate Navigation Filename

generatefilenames.cs

using System;

var monthnames = new [] { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };

var years = new [] { 2007, 2008, 2009, 2010 };
var months = Enumerable.Range(1, 12);

Directory.CreateDirectory("navigation-segments");

foreach(var year in years)
{
    foreach (var month in months)
    {
        var shortyear = $"{(year - 2000):00}";
        var shortmonth = $"{month:00}";

        var filename = $"{shortyear}{shortmonth}-nav.html";
        Console.WriteLine($"{year}/{month}: {filename}");

        CreateNavigationFor(year, month, filename);

        Console.WriteLine();
        Console.WriteLine();
        Console.WriteLine();
        Console.WriteLine();
    }
}

void CreateNavigationFor(int currentyear, int currentmonth, string filename)
{
    ///   <nav    style="grid-area: nav">
    ///     <h2>2008 2009 2010 2011</h2>
    ///     <h3>jan feb <a href="2008-mar.html">mar</a> ....</h3>
    ///   </nav>


    using var file = File.Create("navigation-segments/" + filename);
    using var writer = new StreamWriter(file);

    writer.WriteLine("<nav    style=\"grid-area: nav\">");
    writer.WriteLine("    <h2>");
    foreach (var year in years)
    {
        var shortyear = $"{(year - 2000):00}";
        var shortmonth = $"{currentmonth:00}";

        var link = $"{shortyear}{shortmonth}.html";

        if(year == currentyear)
        {
            writer.WriteLine($"        <a href='{link}' class='current'>{year}</a>");
        }
        else
        {
            writer.WriteLine($"        <a href='{link}'>{year}</a>");
        }
    }
    writer.WriteLine("    </h2>");


    writer.WriteLine("    <h3>");
    foreach (var month in months)
    {
        var shortyear = $"{(currentyear - 2000):00}";
        var shortmonth = $"{month:00}";

        var link = $"{shortyear}{shortmonth}.html";

        if (month == currentmonth)
        {
            writer.WriteLine($"        <a href='{link}' class='current'>{monthnames[month - 1]}</a>");
        }
        else
        {
            writer.WriteLine($"        <a href='{link}'>{monthnames[month - 1]}</a>");
        }
    }
    writer.WriteLine("    </h3>");
    writer.WriteLine("</nav>");
}