import { v4 as uuidv4 } from 'uuid';
import { pool } from '../db/pool';
import { config } from '../config';
import type { LoginRequest, MeResponse } from '@family-budget/shared';
import backendPackage from '../../package.json';

export async function login(
  body: LoginRequest,
): Promise<{ sessionId: string } | null> {
  if (body.login !== config.appUserLogin || body.password !== config.appUserPassword) {
    return null;
  }

  const sid = uuidv4();
  await pool.query(
    'INSERT INTO sessions (id) VALUES ($1)',
    [sid],
  );
  return { sessionId: sid };
}

export async function logout(sessionId: string): Promise<void> {
  await pool.query(
    'UPDATE sessions SET is_active = FALSE WHERE id = $1',
    [sessionId],
  );
}

export async function me(sessionId: string): Promise<MeResponse> {
  return {
    login: config.appUserLogin,
    backendVersion: backendPackage.version,
  };
}