#!/usr/bin/env groovy

pipeline {
    agent any
    options {
        disableConcurrentBuilds()
    }
    environment {
        REGISTRY = 'registry.verdnatura.es'
        DOCKER_HOST_1 = 'tcp://vch1.verdnatura.es:2376'
        DOCKER_HOST_2 = 'tcp://vch2.verdnatura.es:2376'
        TAG = "${env.BRANCH_NAME}"
    }
    stages {
        stage('Checkout') {
            steps {
                script {
                    env.COMPOSE_PROJECT_NAME = env.JOB_NAME.replace('/', '-');
                    env.GIT_COMMITTER_EMAIL = sh(
                        script: 'git --no-pager show -s --format="%ae"',
                        returnStdout: true
                    ).trim()

                    switch (env.BRANCH_NAME) {
                        case 'master':
                            env.PORT = 5002
                            break;
                        case 'test': 
                            env.PORT = 5001
                            break;
                    }
                    switch (env.BRANCH_NAME) {
                        case 'master':
                            env.NODE_ENV = 'production'
                            break;
                        case 'test': 
                            env.NODE_ENV = 'test'
                            break;
                        case 'dev':
                            env.NODE_ENV = 'development'
                            break;
                    }
                }
                echo "Committer: ${env.GIT_COMMITTER_EMAIL}"
            }
        }
        stage('Build') {
            environment {
                CREDS = credentials('docker-registry')
            }
            steps {
                nodejs('node-lts') {
                    withEnv(['NODE_ENV=']) {
                        sh 'npm install --no-audit'
                        sh 'gulp install'
                    }
                    sh 'gulp build'
                }
                sh 'docker login --username $CREDS_USR --password $CREDS_PSW $REGISTRY'
                sh 'docker-compose build --parallel'
                sh 'docker-compose push'
            }
        }
        stage('Deploy') {
            environment {
                DOCKER_TLS_VERIFY = 1
            }
            parallel {
                stage('Host 1') {
                    environment {
                        DOCKER_HOST = "${env.DOCKER_HOST_1}"
                    }
                    steps {
                        withCredentials([dockerCert(credentialsId: 'docker', variable: 'DOCKER_CERT_PATH')]) {
                            sh 'docker-compose pull'
                            sh 'docker-compose up -d'
                        }
                    }
                }
                stage('Host 2') {
                    environment {
                        DOCKER_HOST = "${env.DOCKER_HOST_2}"
                    }
                    steps {
                        withCredentials([dockerCert(credentialsId: 'docker', variable: 'DOCKER_CERT_PATH')]) {
                            sh 'docker-compose pull'
                            sh 'docker-compose up -d'
                        }
                    }
                }
            }
        }
        stage('Cleanup') {
            steps {
                sh 'docker logout $REGISTRY'
            }
        }
    }
    post {
        always {
            script {
                if (!env.GIT_COMMITTER_EMAIL) return
                try {
                    mail(
                        to: env.GIT_COMMITTER_EMAIL,
                        subject: "Pipeline: ${env.JOB_NAME} (${env.BUILD_NUMBER}): ${currentBuild.currentResult}",
                        body: "Check status at ${env.BUILD_URL}"
                    )
                } catch (e) {
                    echo e.toString()
                }
            }
        }
    }
}