import { describe, expect, it } from 'vitest';
import { isSafeProjectName, resolveProjectDir } from '../src/core/project.js';

describe('isSafeProjectName', () => {
  it('accepte un segment simple', () => {
    expect(isSafeProjectName('mon-projet')).toBe(true);
    expect(isSafeProjectName('Projet_42.v2')).toBe(true);
    expect(isSafeProjectName('  espaces-trim  ')).toBe(true); // trim interne
  });

  it('refuse vide / espaces seuls', () => {
    expect(isSafeProjectName('')).toBe(false);
    expect(isSafeProjectName('   ')).toBe(false);
  });

  it('refuse `.` et `..`', () => {
    expect(isSafeProjectName('.')).toBe(false);
    expect(isSafeProjectName('..')).toBe(false);
  });

  it('refuse les séparateurs et le NUL (anti-traversal)', () => {
    expect(isSafeProjectName('a/b')).toBe(false);
    expect(isSafeProjectName('../evil')).toBe(false);
    expect(isSafeProjectName('a\\b')).toBe(false);
    expect(isSafeProjectName('a\0b')).toBe(false);
  });

  it('refuse un nom trop long (> 255)', () => {
    expect(isSafeProjectName('x'.repeat(256))).toBe(false);
    expect(isSafeProjectName('x'.repeat(255))).toBe(true);
  });
});

describe('resolveProjectDir', () => {
  it('joint root + name (trim) en chemin absolu', () => {
    expect(resolveProjectDir('/home/johan/dev', 'mon-projet')).toBe('/home/johan/dev/mon-projet');
    expect(resolveProjectDir('/home/johan/dev', '  mon-projet  ')).toBe('/home/johan/dev/mon-projet');
  });

  it('lève (400) sur un nom invalide', () => {
    expect(() => resolveProjectDir('/home/johan/dev', '..')).toThrow();
    expect(() => resolveProjectDir('/home/johan/dev', 'a/b')).toThrow();
    expect(() => resolveProjectDir('/home/johan/dev', '')).toThrow();
  });
});