pipeline {
    agent any
    
    parameters {  
        buildSelector(
        defaultSelector: lastSuccessful(),
        description: 'Which build to use for copying artifacts',
        name: 'BUILD_SELECTOR')
    }
    stages {
        stage('Checkout') {
            steps {
                checkout scm
            }
        }
        stage('Copy Artifacts') {
            steps {
                withEnv(["BUILD_SELECTOR=${params.BUILD_SELECTOR}" ]) {
                copyArtifacts fingerprintArtifacts: true, projectName: 'z-s464903-create-dataset', selector: buildParameter('$BUILD_SELECTOR')}
            }
        }
        stage('Execute Shell Script') {
            steps {
                script {
                    sh 'chmod +x data_counting_script.sh' 
                    sh './data_counting_script.sh'
                
            }
            }
        }
        stage('Archive Results') {
            steps {
                // Archiwizacja pliku wynikowego
                archiveArtifacts artifacts: 'stats.txt', onlyIfSuccessful: true
            }
        }
    }
}