backend/package.json

@@ -13,6 +13,8 @@
         "typeorm:generate-migration": "npm run typeorm -- -d ./src/database/DataSource.ts migration:generate ./src/database/migrations/$npm_config_name",
         "typeorm:revert-migration": "npm run typeorm -- -d ./src/database/DataSource.ts migration:revert",
         "typeorm:create-migration": "npm run typeorm -- migration:create ./src/database/migrations/$npm_config_name",
+        "truncate-db": "ts-node -r tsconfig-paths/register ./src/database/utils/drop",
+        "setup-fresh-db": "npm run truncate-db && npm run typeorm:run-migrations",
         "test": "jest"
     },
     "jest": {

backend/src/database/utils/drop.ts

@@ -0,0 +1,58 @@
+import dataSource from '../DataSource';
+import { getAppConfig } from '../../config';
+import { getErrorMessage } from '../../utils/getErrorMessage';
+import type { InformationSchemaTableRow } from '../../types/database/InformationSchemaTableRow';
+import type { PgEnumTypeRow } from '../../types/database/PgEnumTypeRow';
+import { NodeEnv } from '../../types/NodeEnv';
+
+const {
+    nodeEnv
+} = getAppConfig();
+
+void (async () => {
+    if (nodeEnv === NodeEnv.Development) {
+        console.info('Connecting to the database...');
+
+        const initializedDataSource = await dataSource.initialize();
+
+        console.info('Connected to the database.');
+
+        const tables = await initializedDataSource.query<InformationSchemaTableRow[]>(
+            `SELECT table_name
+         FROM information_schema.tables
+         WHERE table_schema = 'public';`
+        );
+
+        for (const table of tables) {
+            try {
+                await initializedDataSource.query(`DROP TABLE IF EXISTS "${table.table_name}" CASCADE;`);
+
+                console.info(`Dropped table: ${table.table_name}`);
+            } catch (error) {
+                console.error(`Failed to drop table: ${table.table_name}: ${getErrorMessage(error)}`);
+
+                return process.exit(1);
+            }
+        }
+
+        const enums = await initializedDataSource.query<PgEnumTypeRow[]>(
+            `SELECT typname FROM pg_type WHERE typtype = 'e';`
+        );
+
+        for (const enumType of enums) {
+            try {
+                await initializedDataSource.query(`DROP TYPE IF EXISTS ${enumType.typname} CASCADE;`);
+
+                console.info(`Dropped enum: ${enumType.typname}`);
+            } catch (error) {
+                console.error(`Failed to drop enum: ${enumType.typname}: ${getErrorMessage(error)}`);
+
+                return process.exit(1);
+            }
+        }
+
+        console.info('All tables and enums have been dropped.');
+
+        return process.exit(0);
+    }
+})();

backend/src/types/database/InformationSchemaTableRow.ts

@@ -0,0 +1,3 @@
+export type InformationSchemaTableRow = {
+    table_name: string;
+};

backend/src/types/database/PgEnumTypeRow.ts

@@ -0,0 +1,3 @@
+export type PgEnumTypeRow = {
+    typname: string;
+};

backend/src/utils/getErrorMessage.ts

@@ -0,0 +1 @@
+export const getErrorMessage = (error: unknown): string => (error instanceof Error ? error.message : String(error));