import { describe, it, expect } from 'vitest';
import * as path from 'path';
import { resolveFixturesPath } from '@/apps/companion/main/di-container';

describe('DIContainer path resolution', () => {
  describe('resolveFixturesPath', () => {
    it('should resolve fixtures path to monorepo root when app path is apps/companion/dist/main', () => {
      // Given: The app path as it would be in Electron runtime (apps/companion/dist/main)
      const mockAppPath = '/Users/test/Projects/gridpilot/apps/companion/dist/main';
      const relativePath = './resources/iracing-hosted-sessions';

      // When: Resolving the fixtures path
      const resolved = resolveFixturesPath(relativePath, mockAppPath);

      // Then: Should resolve to monorepo root (4 levels up from apps/companion/dist/main)
      // Level 0: apps/companion/dist/main (app.getAppPath())
      // Level 1: apps/companion/dist (../)
      // Level 2: apps/companion (../../)
      // Level 3: apps (../../../)
      // Level 4: gridpilot (monorepo root) (../../../../) ← CORRECT
      const expectedPath = '/Users/test/Projects/gridpilot/resources/iracing-hosted-sessions';
      expect(resolved).toBe(expectedPath);
    });

    it('should return absolute paths unchanged', () => {
      // Given: An absolute path
      const absolutePath = '/some/absolute/path/to/fixtures';
      const mockAppPath = '/Users/test/Projects/gridpilot/apps/companion/dist/main';

      // When: Resolving an absolute path
      const resolved = resolveFixturesPath(absolutePath, mockAppPath);

      // Then: Should return the absolute path unchanged
      expect(resolved).toBe(absolutePath);
    });

    it('should navigate exactly 4 levels up from app path', () => {
      // Given: A path that demonstrates the 4-level navigation
      const mockAppPath = '/level4/level3/level2/level1';
      const relativePath = './target';

      // When: Resolving the fixtures path
      const resolved = resolveFixturesPath(relativePath, mockAppPath);

      // Then: Should resolve to the path 4 levels up (root /)
      // Level 0: /level4/level3/level2/level1 (appPath)
      // Level 1: /level4/level3/level2 (../)
      // Level 2: /level4/level3 (../../)
      // Level 3: /level4 (../../../)
      // Level 4: / (../../../../) ← monorepo root equivalent
      expect(resolved).toBe('/target');
    });

    it('should work with different relative path formats', () => {
      // Given: Various relative path formats
      const mockAppPath = '/Users/test/Projects/gridpilot/apps/companion/dist/main';

      // When/Then: Different relative formats should all work
      expect(resolveFixturesPath('resources/fixtures', mockAppPath))
        .toBe('/Users/test/Projects/gridpilot/resources/fixtures');
      
      expect(resolveFixturesPath('./resources/fixtures', mockAppPath))
        .toBe('/Users/test/Projects/gridpilot/resources/fixtures');
    });
  });
});