implement drop database

Author: gambitier

Projects/BooksLibrary/src/database/sql/sequelize/database.connector.sequelize.ts

@@ -85,9 +85,16 @@ export class DatabaseConnector_Sequelize implements IDatabaseConnector {
         }
     };
 
-    dropDatabase(): Promise<boolean> {
-        throw new Error('Method not implemented.');
-    }
+    dropDatabase = async (): Promise<boolean> => {
+        try {
+            const client = this.getClient();
+            await client.dropDb();
+            return true;
+        } catch (error) {
+            Logger.instance().log(error.message);
+        }
+        return false;
+    };
 
     executeQuery(query: string): Promise<boolean> {
         throw new Error('Method not implemented.');

Projects/BooksLibrary/src/database/sql/sequelize/dilect.clients/postgresql.client.ts

@@ -3,6 +3,16 @@ import { DbConfig } from '../database.config';
 import { Client } from 'pg';
 
 export class PostgresqlClient {
+    static async dropDb() {
+        try {
+            const config = DbConfig.config;
+            const query = `DROP DATABASE IF EXISTS ${config.database}`;
+            await PostgresqlClient.executeQuery(query);
+        } catch (error) {
+            Logger.instance().log(error.message);
+        }
+    }
+
     static async executeQuery(query: string) {
         try {
             const config = DbConfig.config;