import { describe, it, expect } from 'vitest';
import * as fs from 'fs/promises';
import * as path from 'path';

describe('Schedule boundary: view-model constructors must not depend on DTOs or mappers', () => {
  it('rejects schedule ViewModels importing from mappers or types/generated', async () => {
    const websiteRoot = path.resolve(__dirname, '../../..');

    const viewModelFiles = [
      'lib/view-models/LeagueScheduleViewModel.ts',
      'lib/view-models/LeagueAdminScheduleViewModel.ts',
    ];

    const forbiddenImportRegex =
      /^\s*import[\s\S]*from\s+['"][^'"]*(\/mappers\/|\/types\/generated\/)[^'"]*['"]/gm;

    const offenders: Array<{ file: string; matches: string[] }> = [];

    for (const rel of viewModelFiles) {
      const abs = path.join(websiteRoot, rel);
      const content = await fs.readFile(abs, 'utf-8');

      const matches = Array.from(content.matchAll(forbiddenImportRegex)).map((m) => m[0]).filter(Boolean);

      if (matches.length > 0) {
        offenders.push({ file: rel, matches });
      }
    }

    expect(offenders, `Forbidden imports found:\n${offenders
      .map((o) => `- ${o.file}\n${o.matches.map((m) => `  ${m}`).join('\n')}`)
      .join('\n')}`).toEqual([]);
  });
});