pipeline {
    agent { label 'agent1' }

    stages {
        stage('Install Dependencies') {
            steps {
                script {
                    def dependencies = sh(script: "jq -r '.dependencies | keys[]' package.json", returnStdout: true).split('\n')
                    def unsignedPackages = []

                    for (dep in dependencies) {
                        sh "npm pack ${dep}@\$(jq -r '.dependencies[\"${dep}\"]' package.json)"
                        
                        def result = sh(
                            script: """
                                wget -q --spider https://registry.npmjs.org/${dep}/-/\$(jq -r '.dependencies[\"${dep}\"]' package.json)/${dep}.tgz.asc || echo 'NOT_FOUND'
                            """,
                            returnStdout: true
                        ).trim()

                        if (result == 'NOT_FOUND') {
                            unsignedPackages.add(dep)
                        } else {
                            sh "wget https://registry.npmjs.org/${dep}/-/\$(jq -r '.dependencies[\"${dep}\"]' package.json)/${dep}.tgz.asc"
                            sh "gpg --verify ${dep}.tgz.asc ${dep}-*.tgz"
                        }

                        sh """
                            FILENAME=\$(ls ${dep}-*.tgz)
                            SHA256_SUM=\$(sha256sum \$FILENAME | awk '{ print \$1 }')
                            echo \"\${SHA256_SUM} \$FILENAME\" > ${dep}.sha256
                            sha256sum -c ${dep}.sha256
                        """
                    }

                    if (unsignedPackages.size() > 0) {
                        echo "Packages without digital signatures: ${unsignedPackages.join(', ')}"
                    } else {
                        echo "All packages have digital signatures."
                    }
                }
            }
        }

        stage('Test') {
            steps {
                sh 'npm test'
            }
        }

        stage('Build') {
            steps {
                sh 'npm run build'
            }
        }
    }
}