pipeline {
    agent any

    environment {
        BUILD_ENV = "pcb_rev_1-4_serial"
        PIO_HOME_DIR = "${WORKSPACE}/.pio"
        VENV_PATH = "${WORKSPACE}/Software/.venv"
    }

    parameters {
        choice(
            name: 'BUILD_ENV',
            choices: ['pcb_rev_1-2_serial', 'pcb_rev_1-3_serial', 'pcb_rev_1-4_serial'],
            description: 'Firmware-Umgebung auswählen'
        )
    }

    stages {

        stage('🧰 Setup PlatformIO') {
            steps {
                dir('Software') {
                    sh """
                        [ -d .venv ] || python3 -m venv .venv
                        ${env.VENV_PATH}/bin/pip install --upgrade pip platformio
                    """
                }
            }
        }

        stage('📄 Dummy WiFi-Creds') {
            steps {
                dir('Software') {
                    writeFile file: 'wifi_credentials.ini', text: '''
[wifi_cred]
wifi_ssid_client = DummySSID
wifi_password_client = DummyPass
admin_password = Admin123
wifi_ap_password = DummyAP
                    '''.stripIndent()
                }
            }
        }

        stage('🧪 Build Firmware') {
            steps {
                dir('Software') {
                    sh """
                        ${env.VENV_PATH}/bin/platformio run -e ${params.BUILD_ENV}
                    """
                }
            }
        }

        stage('📦 Find & Archive Firmware') {
            steps {
                script {
                    def buildPath = "Software/.pio/build/${params.BUILD_ENV}"
                    def files = findFiles(glob: "${buildPath}/*.bin")
                    if (files.length == 1) {
                        archiveArtifacts artifacts: files[0].path, fingerprint: true
                    } else {
                        error "❌ Konnte keine eindeutige Firmware-Datei finden!"
                    }
                }
            }
        }

        stage('🔌 Flash Hardware (Dummy)') {
            steps {
                echo "TODO: Flash-Script aufrufen, z. B.: python3 Hardware/flash.py /dev/ttyUSB0"
            }
        }

        stage('🧠 Run Tests (Dummy)') {
            steps {
                dir('Testing') {
                    echo "TODO: Testing mit z. B.: python3 test_runner.py oder pytest starten"
                }
            }
        }

        stage('🧹 Cleanup Build Output') {
            steps {
                dir('Software') {
                    sh "rm -rf .pio"
                }
            }
        }
    }

    post {
        success {
            echo "✅ CI abgeschlossen – Firmware gebaut, Dummy-Stages bereit"
        }
        failure {
            echo "❌ Fehler im Build – Logs checken, Commander Seraphon"
        }
    }
}