DATABASE WOOOOOOOOOOOOOOOOOOO!

Services/DatabaseService.cs

@@ -0,0 +1,40 @@
+using System.Linq.Expressions;
+using Microsoft.Data.Sqlite;
+
+namespace Reactor.Services
+{
+    public static class DatabaseService
+    {
+        private static string _connectionString = "Data Source=reactor.db";
+
+        public static async Task InitializeAsync()
+        {
+            using var connection = new SqliteConnection(_connectionString);
+            await connection.OpenAsync();
+
+            //ReactionMessages Table
+            var cmd1 = connection.CreateCommand();
+            cmd1.CommandText =
+                "CREATE TABLE IF NOT EXISTS ReactionMessages (" +
+                "Id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                "PlanetId INTEGER NOT NULL, " +
+                "ChannelId INTEGER NOT NULL, " +
+                "MessageId INTEGER NOT NULL UNIQUE, " +
+                "DeleteDelaySeconds INTEGER NOT NULL DEFAULT 5" +
+                ")";
+            await cmd1.ExecuteNonQueryAsync();
+
+            //ReactionRoles table
+            var cmd2 = connection.CreateCommand();
+            cmd2.CommandText =
+                "CREATE TABLE IF NOT EXISTS ReactionRoles (" +
+                "Id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                "ReactionMessageId INTEGER NOT NULL, " +
+                "Emoji TEXT NOT NULL, " +
+                "RoleId INTEGER NOT NULL, " +
+                "FOREIGN KEY (ReactionMessageId) REFERENCES ReactionMessages(Id) ON DELETE CASCADE" +
+                ")";
+            await cmd2.ExecuteNonQueryAsync();
+        }
+    }
+}