/*
Required plugins in Jenkins:
- Pipeline Utility Steps
- Docker Pipeline
*/

def geyser_version
def geyser_build
def runnable_jar
def docker_tag
def docker_tag_latest

pipeline {
    agent any
    environment {
        URL_BUILD = 'https://download.geysermc.org/v2/projects/geyser/versions/latest/builds/latest'
        URL_DOWNLOAD = "${URL_BUILD}/downloads/standalone"
        DOCKER_TAG_BASE = 'cr.pandacube.fr/geyser'
        DOCKER_CR_PANDACUBE_CREDENTIALS = 'cr-pandacube-credentials'
    }

    stages {

        stage('Get build data') {
            steps {
                sh 'curl -L -s $URL_BUILD -o build_infos.json'
                script {
                    def build_infos = readJSON file: 'build_infos.json'
                    geyser_version = build_infos.version
                    geyser_build = build_infos.build
                    runnable_jar = "Geyser-${geyser_version}-${geyser_build}.jar"
                    docker_tag = "${DOCKER_TAG_BASE}:${geyser_version}-${geyser_build}"
                    docker_tag_latest = "${DOCKER_TAG_BASE}:latest"
                }
                echo "Geyser version ${geyser_version} build #${geyser_build}"
            }
        }

        stage('Download jar') {
            steps {
                echo "From $URL_DOWNLOAD"
                echo "To $runnable_jar"
                sh "curl -L -o '$runnable_jar' '$URL_DOWNLOAD'"
            }
        }

        stage('Build Docker image') {
            steps {
                script {
                    docker.build(docker_tag, "--build-arg RUNNABLE_JAR=$runnable_jar .")
                }
                sh "docker tag ${docker_tag} ${docker_tag_latest}"
            }
        }

        stage('Push Docker image') {
            steps {
                script {
                    docker.withRegistry('cr.pandacube.fr', DOCKER_CR_PANDACUBE_CREDENTIALS) {
                        docker.image(docker_tag).push()
                        docker.image(docker_tag_latest).push()
                    }
                }
            }
        }
    }

    post { 
        always { 
            cleanWs()
        }
    }
}