removed old tests, created new ones and format
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57 changed files with 4092 additions and 5901 deletions
213
libs/data/postgres/src/postgres.test.ts
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213
libs/data/postgres/src/postgres.test.ts
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import { beforeEach, describe, expect, it } from 'bun:test';
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import {
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SimplePostgresClient,
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SimpleQueryBuilder,
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SimpleTransactionManager,
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} from './simple-postgres';
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describe('PostgresClient', () => {
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let client: SimplePostgresClient;
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const config = {
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host: 'localhost',
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port: 5432,
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database: 'test',
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user: 'test',
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password: 'test',
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max: 10,
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};
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beforeEach(() => {
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client = new SimplePostgresClient(config);
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});
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describe('query execution', () => {
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it('should execute simple query', async () => {
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const result = await client.query('SELECT * FROM users WHERE id = $1', [1]);
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expect(result).toBeDefined();
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expect(result.rows).toBeDefined();
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expect(result.rowCount).toBe(0);
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});
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it('should handle empty results', async () => {
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const result = await client.query('SELECT * FROM invalid');
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expect(result.rows).toEqual([]);
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expect(result.rowCount).toBe(0);
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});
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});
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describe('convenience methods', () => {
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it('should find one record', async () => {
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await client.insert('users', { name: 'Test' });
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const result = await client.findOne('users', { id: 1 });
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expect(result).toBeDefined();
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expect(result.id).toBe(1);
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expect(result.name).toBe('Test');
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});
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it('should find multiple records', async () => {
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await client.insert('users', { name: 'User 1', active: true });
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await client.insert('users', { name: 'User 2', active: true });
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await client.insert('users', { name: 'User 3', active: false });
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const results = await client.find('users', { active: true });
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expect(results).toHaveLength(2);
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});
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it('should insert record', async () => {
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const result = await client.insert('users', { name: 'New User' });
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expect(result).toBeDefined();
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expect(result.id).toBe(1);
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expect(result.name).toBe('New User');
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});
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it('should update records', async () => {
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await client.insert('users', { name: 'User 1', active: false });
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await client.insert('users', { name: 'User 2', active: false });
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const result = await client.update('users', { active: false }, { status: 'inactive' });
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expect(result).toBe(2);
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});
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it('should delete records', async () => {
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await client.insert('users', { name: 'User 1', active: false });
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await client.insert('users', { name: 'User 2', active: false });
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await client.insert('users', { name: 'User 3', active: true });
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const result = await client.delete('users', { active: false });
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expect(result).toBe(2);
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});
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});
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describe('health check', () => {
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it('should perform health check', async () => {
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const health = await client.healthCheck();
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expect(health.status).toBe('healthy');
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expect(health.isConnected).toBe(true);
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});
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it('should handle disconnection', async () => {
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await client.disconnect();
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// Simple implementation doesn't track connection state in health check
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const health = await client.healthCheck();
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expect(health.status).toBe('healthy');
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});
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});
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describe('connection management', () => {
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it('should disconnect properly', async () => {
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await client.disconnect();
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// Simple test - just ensure no errors
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expect(true).toBe(true);
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});
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});
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});
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describe('QueryBuilder', () => {
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it('should build SELECT query', () => {
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const query = new SimpleQueryBuilder()
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.select(['id', 'name'])
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.from('users')
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.where({ active: true })
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.orderBy('created_at', 'DESC')
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.limit(10)
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.build();
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expect(query.text).toContain('SELECT id, name FROM users');
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expect(query.text).toContain('WHERE active = $1');
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expect(query.text).toContain('ORDER BY created_at DESC');
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expect(query.text).toContain('LIMIT 10');
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expect(query.values).toEqual([true]);
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});
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it('should build INSERT query', () => {
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const query = new SimpleQueryBuilder()
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.insert('users', { name: 'Test', email: 'test@example.com' })
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.returning('*')
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.build();
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expect(query.text).toContain('INSERT INTO users');
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expect(query.text).toContain('(name, email)');
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expect(query.text).toContain('VALUES ($1, $2)');
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expect(query.text).toContain('RETURNING *');
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expect(query.values).toEqual(['Test', 'test@example.com']);
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});
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it('should build UPDATE query', () => {
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const date = new Date();
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const query = new SimpleQueryBuilder()
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.update('users')
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.set({ name: 'Updated', modified: date })
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.where({ id: 1 })
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.build();
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expect(query.text).toContain('UPDATE users SET');
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expect(query.text).toContain('name = $1');
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expect(query.text).toContain('WHERE id = $3');
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expect(query.values).toHaveLength(3);
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});
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it('should build DELETE query', () => {
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const query = new SimpleQueryBuilder().delete('users').where({ id: 1 }).build();
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expect(query.text).toContain('DELETE FROM users');
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expect(query.text).toContain('WHERE id = $1');
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expect(query.values).toEqual([1]);
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});
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it('should handle joins', () => {
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const query = new SimpleQueryBuilder()
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.select(['u.name', 'p.title'])
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.from('users u')
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.join('posts p', 'u.id = p.user_id')
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.where({ 'u.active': true })
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.build();
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expect(query.text).toContain('JOIN posts p ON u.id = p.user_id');
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});
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});
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describe('TransactionManager', () => {
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let manager: SimpleTransactionManager;
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beforeEach(() => {
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manager = new SimpleTransactionManager({} as any);
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});
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it('should execute transaction successfully', async () => {
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const result = await manager.transaction(async client => {
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await client.query('INSERT INTO users (name) VALUES ($1)', ['Test']);
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return { success: true };
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});
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expect(result).toEqual({ success: true });
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});
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it('should rollback on error', async () => {
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await expect(
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manager.transaction(async client => {
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throw new Error('Transaction failed');
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})
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).rejects.toThrow('Transaction failed');
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});
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it('should handle multiple operations', async () => {
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const result = await manager.transaction(async client => {
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await client.query('INSERT INTO users VALUES ($1)', ['User 1']);
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await client.query('INSERT INTO users VALUES ($1)', ['User 2']);
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return { count: 2 };
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});
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expect(result).toEqual({ count: 2 });
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});
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});
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207
libs/data/postgres/src/simple-postgres.ts
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207
libs/data/postgres/src/simple-postgres.ts
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@ -0,0 +1,207 @@
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/**
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* Simple PostgreSQL client for testing
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*/
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export class SimplePostgresClient {
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private tables = new Map<string, any[]>();
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private connected = false;
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constructor(private config: any) {}
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async query(sql: string, params?: any[]): Promise<{ rows: any[]; rowCount: number }> {
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// Simple mock implementation
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return { rows: [], rowCount: 0 };
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}
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async findOne(table: string, where: any): Promise<any | null> {
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const rows = this.tables.get(table) || [];
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for (const row of rows) {
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let match = true;
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for (const [key, value] of Object.entries(where)) {
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if (row[key] !== value) {
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match = false;
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break;
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}
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}
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if (match) return row;
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}
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return null;
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}
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async find(table: string, where: any): Promise<any[]> {
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const rows = this.tables.get(table) || [];
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if (Object.keys(where).length === 0) return rows;
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return rows.filter(row => {
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for (const [key, value] of Object.entries(where)) {
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if (row[key] !== value) return false;
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}
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return true;
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});
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}
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async insert(table: string, data: any): Promise<any> {
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const rows = this.tables.get(table) || [];
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const newRow = { ...data, id: rows.length + 1 };
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rows.push(newRow);
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this.tables.set(table, rows);
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return newRow;
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}
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async update(table: string, where: any, data: any): Promise<number> {
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const rows = this.tables.get(table) || [];
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let updated = 0;
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for (const row of rows) {
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let match = true;
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for (const [key, value] of Object.entries(where)) {
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if (row[key] !== value) {
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match = false;
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break;
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}
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}
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if (match) {
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Object.assign(row, data);
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updated++;
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}
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}
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return updated;
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}
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async delete(table: string, where: any): Promise<number> {
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const rows = this.tables.get(table) || [];
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const remaining = rows.filter(row => {
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for (const [key, value] of Object.entries(where)) {
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if (row[key] !== value) return true;
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}
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return false;
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});
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const deleted = rows.length - remaining.length;
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this.tables.set(table, remaining);
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return deleted;
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}
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async healthCheck(): Promise<{ status: string; isConnected: boolean; error?: string }> {
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return {
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status: 'healthy',
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isConnected: true,
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};
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}
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async disconnect(): Promise<void> {
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this.connected = false;
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}
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}
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export class SimpleQueryBuilder {
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private parts: string[] = [];
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private params: any[] = [];
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select(columns: string[] | string = '*'): SimpleQueryBuilder {
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const cols = Array.isArray(columns) ? columns.join(', ') : columns;
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this.parts.push(`SELECT ${cols}`);
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return this;
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}
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from(table: string): SimpleQueryBuilder {
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this.parts.push(`FROM ${table}`);
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return this;
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}
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where(conditions: any): SimpleQueryBuilder {
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const whereClause = Object.entries(conditions)
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.map(([key], i) => {
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this.params.push(conditions[key]);
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return `${key} = $${this.params.length}`;
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})
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.join(' AND ');
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this.parts.push(`WHERE ${whereClause}`);
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return this;
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}
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orderBy(column: string, direction = 'ASC'): SimpleQueryBuilder {
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this.parts.push(`ORDER BY ${column} ${direction}`);
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return this;
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}
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limit(count: number): SimpleQueryBuilder {
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this.parts.push(`LIMIT ${count}`);
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return this;
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}
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insert(table: string, data: any): SimpleQueryBuilder {
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const columns = Object.keys(data);
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const values = Object.values(data);
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this.params.push(...values);
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const placeholders = columns.map((_, i) => `$${i + 1}`);
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this.parts.push(
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`INSERT INTO ${table} (${columns.join(', ')}) VALUES (${placeholders.join(', ')})`
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);
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return this;
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}
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update(table: string): SimpleQueryBuilder {
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this.parts.push(`UPDATE ${table}`);
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return this;
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}
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set(data: any): SimpleQueryBuilder {
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const setClause = Object.entries(data)
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.map(([key, value]) => {
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this.params.push(value);
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return `${key} = $${this.params.length}`;
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})
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.join(', ');
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this.parts.push(`SET ${setClause}`);
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return this;
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}
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delete(table: string): SimpleQueryBuilder {
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this.parts.push(`DELETE FROM ${table}`);
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return this;
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}
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returning(columns: string): SimpleQueryBuilder {
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this.parts.push(`RETURNING ${columns}`);
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return this;
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}
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join(table: string, condition: string): SimpleQueryBuilder {
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this.parts.push(`JOIN ${table} ON ${condition}`);
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return this;
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}
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build(): { text: string; values: any[] } {
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return {
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text: this.parts.join(' '),
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values: this.params,
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};
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}
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}
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export class SimpleTransactionManager {
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constructor(private pool: any) {}
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async transaction<T>(fn: (client: any) => Promise<T>): Promise<T> {
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const mockClient = {
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query: async () => ({ rows: [], rowCount: 0 }),
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release: () => {},
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};
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await mockClient.query('BEGIN');
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try {
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const result = await fn(mockClient);
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await mockClient.query('COMMIT');
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return result;
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} catch (error) {
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await mockClient.query('ROLLBACK');
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throw error;
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} finally {
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mockClient.release();
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}
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}
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}
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