AMO_Housing/Services/IniFile.cs

using System.IO;

namespace Housing.Services;

public static class IniFile
{
    public static Dictionary<string, string> LoadSection(string filePath, string sectionName)
    {
        var values = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
        var isTargetSection = false;

        foreach (var rawLine in File.ReadAllLines(filePath))
        {
            var line = rawLine.Trim();
            if (string.IsNullOrWhiteSpace(line) || line.StartsWith(';') || line.StartsWith('#'))
            {
                continue;
            }

            if (line.StartsWith('[') && line.EndsWith(']'))
            {
                var currentSection = line.Substring(1, line.Length - 2).Trim();
                isTargetSection = string.Equals(currentSection, sectionName, StringComparison.OrdinalIgnoreCase);
                continue;
            }

            if (!isTargetSection)
            {
                continue;
            }

            var separatorIndex = line.IndexOf('=');
            if (separatorIndex <= 0)
            {
                continue;
            }

            var key = line.Substring(0, separatorIndex).Trim();
            var value = line.Substring(separatorIndex + 1).Trim();
            values[key] = value;
        }

        return values;
    }
}