/**
 * Shared test helpers — isolated store + seed tenants.
 */

import { mkdtempSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { setStoreForTests, loadStore, emptyStore, persist, getStore } from '../src/store/db.js';
import { createTenant } from '../src/store/tenants.js';
import { config } from '../src/config.js';

/**
 * Point store at a temp file and reset memory.
 * @returns {{ dir: string, storePath: string, cleanup: () => void }}
 */
export function useTempStore() {
  const dir = mkdtempSync(join(tmpdir(), 'verae-mw-'));
  const storePath = join(dir, 'store.json');
  config.storePath = storePath;
  setStoreForTests(null);
  loadStore(storePath);
  // ensure empty
  setStoreForTests(emptyStore());
  persist(storePath);

  return {
    dir,
    storePath,
    cleanup: () => {
      setStoreForTests(null);
      try {
        rmSync(dir, { recursive: true, force: true });
      } catch {
        /* ignore */
      }
    },
  };
}

/**
 * Seed a free-plan tenant with known credentials (mock Verae).
 * @param {object} [overrides]
 * @returns {{ tenant: object, apiKey: string }}
 */
export function seedFreeTenant(overrides = {}) {
  return createTenant({
    id: overrides.id ?? 'tenant-test-free',
    name: overrides.name ?? 'Test Free',
    plan: 'free',
    veraeUsername: overrides.veraeUsername ?? 'zapuser',
    veraePassword: overrides.veraePassword ?? 'zappass',
    metadata: { audience: 'test' },
    ...overrides,
  });
}

/**
 * Seed a pro tenant (batch allowed).
 */
export function seedProTenant() {
  return createTenant({
    id: 'tenant-test-pro',
    name: 'Test Pro',
    plan: 'pro',
    veraeUsername: 'prouser',
    veraePassword: 'propass',
    metadata: { audience: 'test' },
  });
}

/**
 * Seed enterprise with contract.
 */
export function seedEnterpriseTenant() {
  return createTenant({
    id: 'tenant-test-ent',
    name: 'Test Enterprise',
    plan: 'enterprise',
    veraeUsername: 'entuser',
    veraePassword: 'entpass',
    contract: {
      includedTimestamps: 10,
      includedVerifications: 10,
      batch: true,
      batchMaxItems: 5,
      requestsPerMinute: 100,
      allowOverage: false,
    },
    metadata: { audience: 'enterprise' },
  });
}

export { getStore, config };