// test/03a_cameraPose.test.js
const { execSync } = require('child_process');
const fs = require('fs');
const path = require('path');

describe('Camera Pose Script', () => {
  const projectRoot = path.resolve(__dirname, '..');
  const scriptPath = path.resolve(projectRoot, 'programs/03a_cameraPose.py');
  const timestamp = 1778819665744;
  const sceneFile = path.resolve(projectRoot, `test/data/screenShots/scene_${timestamp}.json`);
  const robotDir = path.resolve(projectRoot, 'test/data/robot');
  const robotFile = path.resolve(robotDir, 'robot.json');
  const outputFile = path.resolve(projectRoot, `test/data/screenShots/scene_${timestamp}_cameras.json`);

  test('should exist and be executable', () => {
    expect(fs.existsSync(scriptPath)).toBe(true);
  });

  test('should have scene file', () => {
    expect(fs.existsSync(sceneFile)).toBe(true);
  });

  test('should have robot file', () => {
    expect(fs.existsSync(robotFile)).toBe(true);
  });

  test('should compute camera poses with timestamp parameter', () => {
    // Führe das Python-Skript mit den korrekten Parametern aus
    const cmd = `python "${scriptPath}" -scene "${sceneFile}" -robot "${robotFile}" -out "${outputFile}"`;
    
    try {
      execSync(cmd, { stdio: 'inherit', cwd: projectRoot });  
    } catch (error) {
      throw new Error(`Failed to compute camera poses: ${error.message}`);
    }
    // Überprüfe, ob die erwartete Ausgabedatei erstellt wurde
    expect(fs.existsSync(outputFile)).toBe(true);
    
    // Prüfe den Inhalt der JSON-Datei
    const jsonData = JSON.parse(fs.readFileSync(outputFile, 'utf8'));
    expect(jsonData).toBeDefined();
    expect(typeof jsonData).toBe('object');
    expect(jsonData).toHaveProperty('camera_poses');
  });

  test('should handle timestamp parameter correctly', () => {
    expect(timestamp).toBe(1778819665744);
  });
});