Added logging of messages

- added new main database table `messages` to log all messages for statistic reasons

bot.js

@@ -120,6 +120,14 @@ class Bot {
             new dblib.Column('text', sql.types.getVarchar(255),
                 [sql.constraints.unique, sql.constraints.notNull])
         ]));
+        await this.maindb.run(sql.createTableIfNotExists('messages', [
+            sql.templates.idcolumn,
+            new dblib.Column('server', sql.types.getVarchar(255)),
+            new dblib.Column('channel', sql.types.getVarchar(255)),
+            new dblib.Column('username', sql.types.getVarchar(255), [sql.constraints.notNull]),
+            new dblib.Column('message', sql.types.text),
+            new dblib.Column('timestamp', sql.types.datetime, [sql.constraints.notNull, sql.default('NOW()')])
+        ]));
         this.logger.debug('Loading Presences...');
         await this.loadPresences();
     }
@@ -232,6 +240,35 @@ class Bot {
                     gh.musicPlayer.checkListeners();
             }
         });
+
+        this.client.on('message', async (msg) => {
+            try {
+                let sql = this.maindb.sql;
+                let server = null;
+                let channel = null;
+                let user = msg.author.tag;
+                let message = msg.content;
+                if (msg.guild) {
+                    server = msg.guild.name;
+                    channel = msg.channel.name;
+                    await this.maindb.run(sql.insert('messages', {
+                        server: sql.parameter(1),
+                        channel: sql.parameter(2),
+                        username: sql.parameter(3),
+                        message: sql.parameter(4)
+                    }), [server, channel, user, message]);
+                } else {
+                    await this.maindb.run(sql.insert('messages', {
+                        channel: sql.parameter(1),
+                        username: sql.parameter(2),
+                        message: sql.parameter(3)
+                    }), ['PRIVATE', user, message]);
+                }
+            } catch (err) {
+                this.logger.warn(err.message);
+                this.logger.debug(err.stack);
+            }
+        });
     }
 
     /**