// Copyright 2019-2024 Open Networking Foundation (ONF) and the ONF Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

def appRepo = '${appRepo}'
def appName = '${appName}'
def apiVersion = '${apiVersion}'
def nextApiVersion = '${nextApiVersion}'
def version = '${version}'
def nextVersion = '${nextVersion}'
def branch = '${branch}'
def jdkDistro = '${jdkDistro}'

// -----------------------------------------------------------------------
// Intent: Identify running script.  callstack() cannot be used here,
//   jenkins + serialization alters stack trace making display unreliable.
// -----------------------------------------------------------------------
String getIam(String func) {
    // Cannot rely on a stack trace due to jenkins manipulation
    String src = 'jjb/pipeline/onos-app-release.groovy'
    String iam = [src, func].join('::')
    return iam
}

// -----------------------------------------------------------------------
// Intent: Log progress message
// -----------------------------------------------------------------------
void enter(String name) {
    // Announce ourselves for log usability
    String iam = getIam(name)
    println("${iam}: ENTER")
    return
}

// -----------------------------------------------------------------------
// Intent: Log progress message
// -----------------------------------------------------------------------
void leave(String name) {
    // Announce ourselves for log usability
    String iam = getIam(name)
    println("${iam}: LEAVE")
    return
}

// -----------------------------------------------------------------------
// https://jenkins.opencord.org/job/onos-app-release/285/consoleFull
// -----------------------------------------------------------------------
void git_debug(String name) {
    enter(name)

    println('''

** -----------------------------------------------------------------------
** git debugging: Commit-Id string MIA
** -----------------------------------------------------------------------
''')

    sh 'echo "PWD: $(/bin/pwd)"'
    sh '/bin/ls -l'
    sh 'gitdir=$(git rev-parse --git-dir) && /bin/ls -ld ${gitdir}'
    sh 'gitdir=$(git rev-parse --git-dir) && /bin/ls -l ${gitdir}/hooks/*'

    println('''

** -----------------------------------------------------------------------
** DEBUG: git config --list
** -----------------------------------------------------------------------
''')

    sh '''echo "RUNNING: git config --list" '''
    sh 'git config --list'

    println('''

** -----------------------------------------------------------------------
** git config --global --list
** -----------------------------------------------------------------------
''')
    sh 'git config --global --list'

    leave(name)

    return
}

// This pipeline updates the <version> tag in the root pom.xml for the
// given app repo, and pushes two new Gerrit changes:
//   1) With version the given ${version} (e.g., 1.0.0)
//   2) With ${nextVersion}-SNAPSHOT (e.g., 1.1.0-SNAPSHOT)
//
// Users must manually approve and merge these changes on Gerrit. Once merged,
// it's up to the maven-publish and version-tag jobs to complete the release by
// uploading artifacts to Sonatype and creating Git tags.

def changeVersion(def newVersion) {
  // Update the top-level <version> tag in the root pom.xml.
  sh 'mvn versions:set -DnewVersion=' + newVersion + ' versions:commit'
}

def changeApiVersion(def appName, def newApiVersion) {
  // Update the top-level <*appName*.api.version> tag in the root pom.xml.
  sh 'mvn versions:set-property -Dproperty=' + appName + '.api.version -DnewVersion=' + newApiVersion + ' -DallowSnapshots=true versions:commit'
}

// TODO: use the declarative pipeline syntax, like all other groovy files.
//  This implementation is based on the legacy cord-onos-publisher/Jenkinsfile.release
node ('ubuntu18.04-basebuild-1c-2g') {

  sh 'echo Releasing ' + appRepo + ' repository on ' + branch + ' branch'
  sh 'echo Releasing version ' + version + ' with API version ' + apiVersion + ' and starting ' + nextVersion + '-SNAPSHOT with API version ' + nextApiVersion + '-SNAPSHOT'

  // Set the JDK version
  sh 'echo Using JDK distribution: ' + jdkDistro
  sh 'sudo update-java-alternatives --set ' + jdkDistro
  sh 'echo Java Version:'
  sh 'java -version'

  def userId = wrap([$class: 'BuildUser']) {
    return env.BUILD_USER_ID
  }

  stage ('Configure system') {

    String attempt = "1"
    enter('Configure system: ' + attempt)

    echo "Job triggered by " + userId
    // FIXME: supply Jenkins-owned known_hosts file via config_file_provider
    //  https://jenkins.io/doc/pipeline/steps/config-file-provider/
    sh 'ssh-keyscan -H -t rsa -p 29418 gerrit.opencord.org >> ~/.ssh/known_hosts'

    sh 'git config --global user.name "Jenkins"'
    sh 'git config --global user.email "do-not-reply@opennetworking.org"'

    // GPG key used to sign maven artifacts
    withCredentials([file(credentialsId: 'gpg-creds-maven', variable: 'GPUPG')]) {
      sh 'tar -xvf $GPUPG -C ~'
    }
    leave('Configure system: ' + attempt)
  }

  stage ('Check out code') {
    cleanWs()

    sshagent (credentials: ['gerrit-jenkins-user']) {
      git branch: branch, url: 'ssh://jenkins@gerrit.opencord.org:29418/' + appRepo, credentialsId: 'gerrit-jenkins-user'

      sh 'gitdir=$(git rev-parse --git-dir) && scp -p -P 29418 jenkins@gerrit.opencord.org:hooks/commit-msg ${gitdir}/hooks/'
    }
  }

  stage ('Move to release version') {
    sh 'echo app version ' + version
    sh 'echo api version ' + apiVersion

    //Splitting version and apiVersion and check if apiVersion different from empty then update API it.
    //Allows to release apps that dont' have api.version (e.g. bng,pppoe,kafka)
    changeVersion(version)
    if (!params.apiVersion.isEmpty()) {
       sh 'echo releasing api version' + '"' + apiVersion +'"'
       changeApiVersion(appName, apiVersion)
    }

    git_debug("Move to release version")

    // Explicitly set hooksPath.  Need to figure out logic to detect and
    // test if unset -- else multiple cases where Exception is thrown.
    sh """git config --local core.hooksPath './.git/hooks'""" // limited scope
    sh 'git add -A && git commit -sm "Release app version ' + version + ' with API version ' + apiVersion + '"'
  }

  stage ('Verify code') {
    def found = sh script:'egrep -R SNAPSHOT .', returnStatus:true

    if (found == 0) {
      timeout(time: 1, unit: 'HOURS') {
        metadata = input id: 'manual-verify',
            message: 'Found references to SNAPSHOT in the code. Are you sure you want to release?',
            submitter: userId
      }
    }
  }

  stage ('Push to Gerrit') {
    sshagent (credentials: ['gerrit-jenkins-user']) {
      sh 'git push origin HEAD:refs/for/' + branch
    }
  }

  stage ('Move to next SNAPSHOT version') {
    def snapshot = nextVersion + '-SNAPSHOT'
    def apiSnapshot = nextApiVersion + '-SNAPSHOT'

    sh 'echo next app version ' + nextVersion
    sh 'echo next api version ' + nextApiVersion

    changeVersion(snapshot)
    if (!params.nextApiVersion.isEmpty()) {
       sh 'echo moving to next api version' + '"' + nextApiVersion +'"'
       changeApiVersion(appName, apiSnapshot)
    }

    git_debug("Move to next SNAPSHOT version")
    sh 'git add -A && git commit -sm "Starting snapshot ' + snapshot + ' with API version ' + apiSnapshot + '"'

    println("\nSnapshot commit message: branch=HEAD")
    sh """git log -1 --pretty=format:'%b' HEAD"""

    println("\nSnapshot commit message: branch=" + branch)
    sh """git log -1 --pretty=format:'%b' """ + branch

    sshagent (credentials: ['gerrit-jenkins-user']) {
      sh 'git push origin HEAD:refs/for/' + branch
    }
  }

  stage ('Finish') {
    sh 'echo "Release done!"'
    sh  'echo "Go to Gerrit and merge new changes"'
    sh  'echo "Go to http://oss.sonatype.org and release the artifacts (after the maven-publish job completes)"'

    // Restore config: secure but what changed (?)
    // Should revert completely to 'factory defaults'
    println("Revert core.hooksPath")
    sh """git config --local core.hooksPath '/dev/null'""" // limited scope
    }
}

// [EOF]