Inital bot commit

EventBot/Services/DatabaseService.cs

@@ -0,0 +1,74 @@
+using Discord.WebSocket;
+using EventBot.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using System.Linq;
+
+namespace EventBot.Services
+{
+    public abstract class DatabaseService: DbContext
+    {
+        private readonly IServiceProvider _services;
+        private readonly DiscordSocketClient _discord;
+
+
+        public DbSet<GuildConfig> GuildConfigs { get; set; }
+        public DbSet<Event> Events { get; set; }
+        public DbSet<EventRole> EventRoles { get; set; }
+        public DbSet<EventParticipant> EventParticipants { get; set; }
+
+        public DatabaseService(IServiceProvider services, DbContextOptions options) : base(options)
+        {
+            _services = services;
+
+            _discord = services.GetRequiredService<DiscordSocketClient>();
+            _discord.GuildAvailable += OnGuildAvaivable;
+        }
+        public DatabaseService(IServiceProvider services) : base()
+        {
+            _services = services;
+
+            _discord = services.GetRequiredService<DiscordSocketClient>();
+            _discord.GuildAvailable += OnGuildAvaivable;
+        }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            optionsBuilder.UseLazyLoadingProxies();
+#if DEBUG
+            optionsBuilder.UseSqlite("Data Source=blogging.db");
+#else
+            optionsBuilder.UseMySql(Environment.GetEnvironmentVariable("dbconnection"));
+#endif
+        }
+            
+            
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<Event>().Property(e => e.Type)
+                .HasConversion(new EnumToNumberConverter<Event.EventParticipactionType, int>());
+        }
+
+        protected async Task OnGuildAvaivable(SocketGuild guild)
+        {
+            GuildConfig config = default;
+            if(await GuildConfigs.CountAsync() != 0)
+                config = await GuildConfigs.FirstAsync(g => g.GuildId == guild.Id);
+            if(config == null)
+            {
+                config = new GuildConfig()
+                {
+                    GuildId = guild.Id
+                };
+                Add(config);
+                await SaveChangesAsync();
+            }
+        }
+    }
+}