#!/usr/bin/env groovy

pipeline {
    agent any
    options {
        disableConcurrentBuilds()
    }
    environment {
        PROJECT_NAME = 'salix'
        STACK_NAME   = "${env.PROJECT_NAME}-${env.BRANCH_NAME}"
    }
    stages {
        stage('Checkout') {
            steps {
                script {
                    if (!env.GIT_COMMITTER_EMAIL) {
                        env.COMMITTER_EMAIL = sh(
                            script: 'git --no-pager show -s --format="%ae"',
                            returnStdout: true
                        ).trim()
                    } else {
                        env.COMMITTER_EMAIL = env.GIT_COMMITTER_EMAIL;
                    }

                    switch (env.BRANCH_NAME) {
                        case 'master':
                            env.NODE_ENV = 'production'
                            break
                        case 'test':
                            env.NODE_ENV = 'test'
                            break
                    }
                }

                configFileProvider([
                    configFile(fileId: "salix.groovy",
                    variable: 'GROOVY_FILE')
                ]) {
                    load env.GROOVY_FILE
                }

                sh 'printenv'
            }
        }
        stage('Install') {
            environment {
                NODE_ENV = ""
            }
            steps {
                nodejs('node-lts') {
                    sh 'npm install --no-audit --prefer-offline'
                    sh 'gulp install --ci'
                }
            }
        }
        stage('Test') {
            environment {
                NODE_ENV = ""
            }
            parallel {
                stage('Frontend') {
                    steps {
                        nodejs('node-lts') {
                            sh 'jest --ci --reporters=default --reporters=jest-junit --maxWorkers=1'
                        }
                    }
                }
                stage('Backend') {
                    steps {
                        nodejs('node-lts') {
                            sh 'gulp backTestOnce --ci'
                        }
                    }
                }
            }
        }
        stage('Build') {
            when { anyOf {
                branch 'test'
                branch 'master'
            }}
            environment {
                CREDS = credentials('docker-registry')
            }
            steps {
                nodejs('node-lts') {
                    sh 'gulp build'
                }

                sh 'docker login --username $CREDS_USR --password $CREDS_PSW $REGISTRY'
                sh 'docker-compose build --parallel'
                sh 'docker-compose push'
            }
        }
        stage('Deploy') {
            when { anyOf {
                branch 'test'
                branch 'master'
            }}
            steps {
                sh "docker stack deploy --with-registry-auth --compose-file docker-compose.yml ${env.STACK_NAME}"
            }
        }
        stage('Database') {
            when { anyOf {
                branch 'test'
                branch 'master'
            }}
            steps {
                configFileProvider([
                    configFile(fileId: "config.${env.NODE_ENV}.ini",
                    variable: 'MYSQL_CONFIG')
                ]) {
                    sh 'cp "$MYSQL_CONFIG" db/config.$NODE_ENV.ini'
                }

                sh 'db/import-changes.sh -f $NODE_ENV'
            }
        }
    }
    post {
        always {
            script {
                if (!['master', 'test'].contains(env.BRANCH_NAME)) {
                    try {
                        junit 'junitresults.xml'
                        junit 'junit.xml'
                    } catch (e) {
                        echo e.toString()
                    }
                }

                if (!env.COMMITTER_EMAIL) return
                try {
                    mail(
                        to: env.COMMITTER_EMAIL,
                        subject: "Pipeline: ${env.JOB_NAME} (${env.BUILD_NUMBER}): ${currentBuild.currentResult}",
                        body: "Check status at ${env.BUILD_URL}"
                    )
                } catch (e) {
                    echo e.toString()
                }
            }
        }
    }
}