IW4M-Admin/SharedLibraryCore/Database/DatabaseContext.cs

219 lines
7.6 KiB
C#

using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Console;
using SharedLibraryCore.Database.Models;
using SharedLibraryCore.Interfaces;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
namespace SharedLibraryCore.Database
{
public class DatabaseContext : DbContext
{
public DbSet<EFClient> Clients { get; set; }
public DbSet<EFAlias> Aliases { get; set; }
public DbSet<EFAliasLink> AliasLinks { get; set; }
public DbSet<EFPenalty> Penalties { get; set; }
public DbSet<EFMeta> EFMeta { get; set; }
public DbSet<EFChangeHistory> EFChangeHistory { get; set; }
[Obsolete]
private static readonly ILoggerFactory _loggerFactory = new LoggerFactory(new[] {
new ConsoleLoggerProvider((category, level) => level == LogLevel.Information, true)
});
static string _ConnectionString;
static string _provider;
private static readonly string _migrationPluginDirectory = @"X:\IW4MAdmin\BUILD\Plugins";
private static int activeContextCount;
public DatabaseContext(DbContextOptions<DatabaseContext> opt) : base(opt)
{
#if DEBUG == true
activeContextCount++;
//Console.WriteLine($"Initialized DB Context #{activeContextCount}");
#endif
}
public DatabaseContext()
{
#if DEBUG == true
activeContextCount++;
//Console.WriteLine($"Initialized DB Context #{activeContextCount}");
#endif
}
public override void Dispose()
{
#if DEBUG == true
//Console.WriteLine($"Disposed DB Context #{activeContextCount}");
activeContextCount--;
#endif
}
public DatabaseContext(bool disableTracking) : this()
{
if (disableTracking)
{
this.ChangeTracker.AutoDetectChangesEnabled = false;
this.ChangeTracker.LazyLoadingEnabled = false;
this.ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
}
else
{
this.ChangeTracker.AutoDetectChangesEnabled = true;
this.ChangeTracker.LazyLoadingEnabled = true;
this.ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.TrackAll;
}
}
public DatabaseContext(string connStr, string provider) : this()
{
_ConnectionString = connStr;
_provider = provider;
}
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
if (string.IsNullOrEmpty(_ConnectionString))
{
string currentPath = Utilities.OperatingDirectory;
// allows the application to find the database file
currentPath = !RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ?
$"{Path.DirectorySeparatorChar}{currentPath}" :
currentPath;
var connectionStringBuilder = new SqliteConnectionStringBuilder { DataSource = Path.Join(currentPath, "Database", "Database.db") };
var connectionString = connectionStringBuilder.ToString();
var connection = new SqliteConnection(connectionString);
optionsBuilder.UseSqlite(connection);
}
else
{
switch (_provider)
{
default:
case "mysql":
optionsBuilder.UseMySql(_ConnectionString);
break;
case "postgresql":
optionsBuilder.UseNpgsql(_ConnectionString);
break;
}
}
#if DEBUG
#pragma warning disable CS0612 // Type or member is obsolete
// optionsBuilder.UseLoggerFactory(_loggerFactory)
#pragma warning restore CS0612 // Type or member is obsolete
// .EnableSensitiveDataLogging();
#endif
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
// make network id unique
modelBuilder.Entity<EFClient>(entity =>
{
entity.HasIndex(e => e.NetworkId).IsUnique();
});
modelBuilder.Entity<EFPenalty>(entity =>
{
entity.HasOne(p => p.Offender)
.WithMany(c => c.ReceivedPenalties)
.HasForeignKey(c => c.OffenderId)
.OnDelete(DeleteBehavior.Restrict);
entity.HasOne(p => p.Punisher)
.WithMany(p => p.AdministeredPenalties)
.HasForeignKey(c => c.PunisherId)
.OnDelete(DeleteBehavior.Restrict);
entity.Property(p => p.Expires)
.IsRequired(false);
});
modelBuilder.Entity<EFAliasLink>(entity =>
{
entity.HasMany(e => e.Children)
.WithOne(a => a.Link)
.HasForeignKey(k => k.LinkId)
.OnDelete(DeleteBehavior.Restrict);
});
modelBuilder.Entity<EFAlias>(ent =>
{
ent.Property(a => a.IPAddress).IsRequired(false);
ent.HasIndex(a => a.IPAddress);
ent.Property(a => a.Name).HasMaxLength(24);
ent.HasIndex(a => a.Name);
});
modelBuilder.Entity<EFMeta>(ent =>
{
ent.HasIndex(_meta => _meta.Key);
});
// force full name for database conversion
modelBuilder.Entity<EFClient>().ToTable("EFClients");
modelBuilder.Entity<EFAlias>().ToTable("EFAlias");
modelBuilder.Entity<EFAliasLink>().ToTable("EFAliasLinks");
modelBuilder.Entity<EFPenalty>().ToTable("EFPenalties");
// adapted from
// https://aleemkhan.wordpress.com/2013/02/28/dynamically-adding-dbset-properties-in-dbcontext-for-entity-framework-code-first/
#if DEBUG
string pluginDir = _migrationPluginDirectory;
#else
string pluginDir = Path.Join(Utilities.OperatingDirectory, "Plugins");
#endif
IEnumerable<string> directoryFiles = Directory.GetFiles(pluginDir).Where(f => f.EndsWith(".dll"));
foreach (string dllPath in directoryFiles)
{
Assembly library;
try
{
library = Assembly.LoadFrom(dllPath);
}
// not a valid assembly, ie plugin support files
catch (Exception)
{
continue;
}
var configurations = library.ExportedTypes.Where(c => c.GetInterfaces().FirstOrDefault(i => typeof(IModelConfiguration).IsAssignableFrom(i)) != null)
.Select(c => (IModelConfiguration)Activator.CreateInstance(c));
foreach (var configurable in configurations)
{
configurable.Configure(modelBuilder);
}
foreach (var type in library.ExportedTypes)
{
if (type.IsClass && type.IsSubclassOf(typeof(SharedEntity)))
{
var method = modelBuilder.GetType().GetMethod("Entity", new[] { typeof(Type) });
method.Invoke(modelBuilder, new[] { type });
}
}
}
base.OnModelCreating(modelBuilder);
}
}
}