DaSaSo/DaSaSo.Wpf/HostBuilders/AddDbContextHostBuilderExtensions.cs

using DaSaSo.EntityFramework;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DaSaSo.Wpf.HostBuilders
{
    public static class AddDbContextHostBuilderExtensions
    {
        public static IHostBuilder AddDBContext(this IHostBuilder host)
        {
            host.ConfigureServices((context,services) =>
            {
                string connectionString = "";
                Action<DbContextOptionsBuilder> configureDbContext;
                string databaseToUse = context.Configuration.GetConnectionString("databaseToUse");
                Trace.WriteLine(databaseToUse);
                if(databaseToUse.Equals("default"))
                {
                    connectionString = context.Configuration.GetConnectionString("default");
                    configureDbContext = o =>
                    {
                        o.UseNpgsql(connectionString);
                        AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
                    };
                }
                else if(databaseToUse.Equals("sqlite"))
                {
                    connectionString = context.Configuration.GetConnectionString("sqlite");
                    configureDbContext = o => o.UseSqlite(connectionString);
                }
                else
                {
                    throw new NotImplementedException("Database Type not implementent" + databaseToUse);
                }
                
                
                services.AddDbContext<DaSaSoDbContext>(configureDbContext);
                services.AddSingleton<DaSaSoDbContextFactory>(new DaSaSoDbContextFactory(configureDbContext));
            });
            return host;
        }
    }
}