sharedLibsPath = "${env.WORKSPACE}/sharedLibs"
backup_destination = '/var/jenkins_home/backups'
backup_targetFile = 'dockerImage.tar'

// 获取镜像URL
generateFullImageUri = {Map DOCKER, String base_branch, String BUILD_NUMBER ->
    return "${DOCKER.registry}/${DOCKER.image}:${base_branch}-${BUILD_NUMBER}"
}

// 获取镜像名
generateImageName = {Map DOCKER, String base_branch, String BUILD_NUMBER ->
    return "${DOCKER.image}:${base_branch}-${BUILD_NUMBER}"
}

def generateImageName(String imageName, String base_branch, String BUILD_NUMBER) {
    return "${imageName}:${base_branch}-${BUILD_NUMBER}"
}

def generateDockerfile(Object SERVICE, String pathOfDockerfile='projdir') {
    
    def module = SERVICE.module == null ? '' : (SERVICE.module[-1] == '/' ? SERVICE.module : SERVICE.module + '/')
    echo "-----> Generating Dockerfile: ${pathOfDockerfile}/Dockerfile ..."
    sh """cat > ${pathOfDockerfile}/Dockerfile<<EOF
FROM node:14-slim as BUILD
LABEL stage=STATICRES-BUILD

COPY ./admin /admin
WORKDIR /admin
RUN npm config set registry https://registry.npm.taobao.org && npm install && npm run build

FROM nginx:1.23-alpine as FINAL

# configs for default
COPY ./default.conf /etc/nginx/conf.d
COPY ./html /usr/share/nginx/html

# configs for partner.hobbystocks.cn
COPY ./partner.hobbystocks.cn.conf /etc/nginx/conf.d
COPY --from=BUILD /admin/dist /usr/share/nginx/partner/admin
EOF
"""
    return pathOfDockerfile
}

def buildDockerImage(Object SERVICE, Object DOCKER, String base_branch, projDir='projdir', String filter2Remove=null) {

    def imageUri = generateFullImageUri(DOCKER, base_branch, BUILD_NUMBER)
    echo "-----> Building docker image: ${imageUri} ..."
    dir(projDir) {
        docker.withRegistry("http://${DOCKER.registry}", "${DOCKER.push_credentialId}") {
            def imageName = generateImageName(DOCKER, base_branch, BUILD_NUMBER)
            def image = docker.build(imageName)
            image.push()
            sh "docker rmi ${imageName}"
            if(filter2Remove != null)
                sh "docker image prune --filter label=${filter2Remove} -f"
        }
    }
    return imageUri
}

def cleanDockerImage(String dockerImgName) {
    sh "docker rmi ${dockerImgName}"
}


// Jenkins pipeline stages
def execute(CONFIG, base_branch, closures=[:]) {

    stage('source code check out') {
        
        println "loading ${sharedLibsPath}/gitUtil.groovy..."
        def gitUtils = load "${sharedLibsPath}/gitUtil.groovy"

        COMMIT_SHA = closures.GITCLONE == null ? gitUtils.clone(CONFIG.git, base_branch) : closures.GITCLONE()
    }

    stage("docker image build") {

        def projDir = 'projdir'
        if (closures.GENERATEDOCKERFILE != null)
            projDir = closures.GENERATEDOCKERFILE()
        else
            projDir = generateDockerfile(CONFIG.service) //default

        if (closures.BUILDIMAGE != null)
            imageUri = closures.BUILDIMAGE()
        else
            imageUri = buildDockerImage(CONFIG.service, CONFIG.docker, base_branch, projDir, 'stage=STATICRES-BUILD')
    }

    stage("run docker container") {

        if(closures.DOCKERRUN != null){
            closures.DOCKERRUN()
            return
        }
    }
}

return this