const fs = require('fs');
const path = require('path');
const { execFileSync } = require('child_process');

const PROJECT_PATH = process.cwd()
const TEST_PATH = path.join(__dirname, '.');
const SOURCE_DIR = path.join(__dirname,'data', 'screenShots');
const TARGET_DIR = path.join(__dirname,'data', 'screenshots', '1778819665744_detection_singleTest_testResults');
const PYTHON_CMD = process.platform === 'win32' ? 'python' : 'python3';
const TEST_SETUP_FILE =  path.join(TEST_PATH, 'data', '0_testSetup.json');
const SCRIPT_FILE = path.join(PROJECT_PATH, 'programs', '1_detect_aruco_observations.py');
const ROBOT_PATH = path.join(__dirname, 'data', 'robot', 'robot.json');
const SCRIPT_FILE_2 = path.join(PROJECT_PATH, 'programs', '2_estimate_camera_pose_from_aruco_json.py');
const SCRIPT_FILE_3 = path.join(PROJECT_PATH, 'programs', '3_fuse_markers_world.py');

const cam = {
    id : 'cam1',
    image: 'snapshot_video1_1779690911822.jpg',
    intrinsics: path.join(PROJECT_PATH, 'data', 'settings','callibration_cam0.npz')
};

const cam2 = {
    id : 'cam1',
    image: 'snapshot_video0_1779690911822.jpg',
    intrinsics: path.join(PROJECT_PATH, 'data', 'settings','callibration_cam0.npz')
};

describe('Check if Python 2 runs', () => {

  test('First Run of Python second script', () => {
    

    console.log('Intrinsics :  ', cam.intrinsics);
    execFileSync(PYTHON_CMD, [
        SCRIPT_FILE,
        '-i', path.join(SOURCE_DIR, cam.image),
        '-npz', cam.intrinsics,
        '-robot', ROBOT_PATH,
        '-cameraId', cam.id
        
        ,
        '-outDir', TARGET_DIR
    ], {
        stdio: 'inherit',
        cwd: SOURCE_DIR   // <- wichtig
    });

    
    const resultFile = path.join(TARGET_DIR, 'snapshot_video1_1779690911822_aruco_detection.json');

    if (!fs.existsSync(resultFile)) {
      throw new Error(`Erwartete Datei fehlt: ${resultFile}`);
    }


    console.log('Intrinsics :  ', cam.intrinsics);
    execFileSync(PYTHON_CMD, [
        SCRIPT_FILE_2,
        '--detections' , resultFile, 
        '--robots', ROBOT_PATH
    ], {
        stdio: 'inherit',
        cwd: SOURCE_DIR   // <- wichtig
    });
    
  });

  test('Second File Run of Python second script', () => {
    

    console.log('Intrinsics :  ', cam.intrinsics);
    execFileSync(PYTHON_CMD, [
        SCRIPT_FILE,
        '-i', path.join(SOURCE_DIR,   cam2.image),
        '-npz', cam.intrinsics,
        '-robot', ROBOT_PATH,
        '-cameraId', cam2.id
        
        ,
        '-outDir', TARGET_DIR
    ], {
        stdio: 'inherit',
        cwd: SOURCE_DIR   // <- wichtig
    });

    
    const resultFile = path.join(TARGET_DIR, 'snapshot_video0_1779690911822_aruco_detection.json');

    if (!fs.existsSync(resultFile)) {
      throw new Error(`Erwartete Datei fehlt: ${resultFile}`);
    }


    console.log('Intrinsics :  ', cam.intrinsics);
    execFileSync(PYTHON_CMD, [
        SCRIPT_FILE_2,
        '--detections' , resultFile, 
        '--robots', ROBOT_PATH
    ], {
        stdio: 'inherit',
        cwd: SOURCE_DIR   // <- wichtig
    });
    
  });


    test('Second File Run of Python second script', () => {
    

    console.log('Intrinsics :  ', cam.intrinsics);
    execFileSync(PYTHON_CMD, [
        SCRIPT_FILE_3,
        '--json', path.join(TARGET_DIR,   'snapshot_video0_1779690911822_aruco_detection.camera_pose.json'),
        '--json', path.join(TARGET_DIR,   'snapshot_video1_1779690911822_aruco_detection.camera_pose.json'),
        '--robots', ROBOT_PATH
    ], {
        stdio: 'inherit',
        cwd: SOURCE_DIR   // <- wichtig
    });
  });


  /*
  // ✅ Cleanup läuft IMMER nach jedem Test
  afterEach(() => {
    if (!fs.existsSync(TARGET_DIR)) return;

    fs.readdirSync(TARGET_DIR).forEach(file => {
      fs.rmSync(path.join(TARGET_DIR, file), {
        recursive: true,
        force: true
      });
    });
  });
  */

});