FeedCenter/Application/SettingsStore.cs

using FeedCenter.Data;
using FeedCenter.Options;
using System;
using System.Linq;

namespace FeedCenter;

public static class SettingsStore
{
    public static object OpenDataStore()
    {
        if (!Database.Exists)
            return null;

        Database.Load();

        return Database.Entities;
    }

    public static string GetSettingValue(object dataStore, string name, Version _)
    {
        var entities = (FeedCenterEntities) dataStore;

        var setting = entities?.Settings.FirstOrDefault(s => s.Name == name);

        return setting?.Value;
    }

    public static void SetSettingValue(object dataStore, string name, Version _, string value)
    {
        var entities = (FeedCenterEntities) dataStore;

        if (entities == null)
            return;

        // Try to get the setting from the database that matches the name and version
        var setting = entities.Settings.FirstOrDefault(s => s.Name == name);

        entities.SaveChanges(() =>
        {
            // If there was no setting we need to create it
            if (setting == null)
            {
                // Create the new setting
                setting = new Setting { Name = name };

                // Add the setting to the database
                entities.Settings.Add(setting);
            }

            // Set the value into the setting
            setting.Value = value;
        });
    }
}