/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

// Contains functions that help build Jenkins projects. Functions typically set
// common properties that are shared among all Jenkins projects.
// Code in this directory should conform to the Groovy style guide.
//  http://groovy-lang.org/style-guide.html

import Committers as committers

class CommonJobProperties {

  static String checkoutDir = 'src'
  final static String JAVA_8_HOME = '/usr/lib/jvm/java-8-openjdk-amd64'
  final static String JAVA_11_HOME = '/usr/lib/jvm/java-11-openjdk-amd64'

  // Sets common top-level job properties for main repository jobs.
  static void setTopLevelMainJobProperties(def context,
      String defaultBranch = 'master',
      int defaultTimeout = 100,
      boolean allowRemotePoll = true,
      String jenkinsExecutorLabel =  'beam') {
    // GitHub project.
    context.properties {
      githubProjectUrl('https://github.com/apache/beam/')
    }

    // Set JDK version.
    context.jdk('JDK 1.8 (latest)')

    // Restrict this project to run only on Jenkins executors as specified
    context.label(jenkinsExecutorLabel)

    // Discard old builds. Build records are only kept up to this number of days.
    context.logRotator {
      daysToKeep(14)
    }

    // Source code management.
    context.scm {
      git {
        remote {
          github("apache/beam")
          // Single quotes here mean that ${ghprbPullId} is not interpolated and instead passed
          // through to Jenkins where it refers to the environment variable.
          refspec('+refs/heads/*:refs/remotes/origin/* ' +
              '+refs/pull/${ghprbPullId}/*:refs/remotes/origin/pr/${ghprbPullId}/*')
        }
        branch('${sha1}')
        extensions {
          wipeOutWorkspace()
          relativeTargetDirectory(checkoutDir)
          if (!allowRemotePoll) {
            disableRemotePoll()
          }
        }
      }
    }

    context.parameters {
      // This is a recommended setup if you want to run the job manually. The
      // ${sha1} parameter needs to be provided, and defaults to the main branch.
      stringParam(
          'sha1',
          defaultBranch,
          'Commit id or refname (eg: origin/pr/9/head) you want to build.')
    }

    context.wrappers {
      // Abort the build if it's stuck for more minutes than specified.
      timeout {
        absolute(defaultTimeout)
        abortBuild()
      }

      // Set SPARK_LOCAL_IP for spark tests.
      environmentVariables {
        env('SPARK_LOCAL_IP', '127.0.0.1')
      }
      credentialsBinding {
        string("COVERALLS_REPO_TOKEN", "beam-coveralls-token")
      }
      timestamps()
    }

    context.publishers {
      // Clean after job completes.
      wsCleanup()
    }
  }

  // Sets the pull request build trigger. Accessed through precommit methods
  // below to insulate callers from internal parameter defaults.
  static void setPullRequestBuildTrigger(context,
      String commitStatusContext,
      String prTriggerPhrase = '',
      boolean onlyTriggerPhraseToggle = true,
      boolean prPermitAll = true,
      List<String> triggerPathPatterns = [],
      List<String> excludePathPatterns = []) {
    context.triggers {
      githubPullRequest {
        admins(['asfbot'])
        useGitHubHooks()
        permitAll(prPermitAll)
        if (!prPermitAll) {
          userWhitelist(committers.GITHUB_USERNAMES)
        }
        // prTriggerPhrase is the argument which gets set when we want to allow
        // post-commit builds to run against pending pull requests. This block
        // overrides the default trigger phrase with the new one. Setting this
        // will disable automatic invocation of this build; the phrase will be
        // required to start it.
        if (prTriggerPhrase) {
          triggerPhrase(prTriggerPhrase)
        }
        if (onlyTriggerPhraseToggle) {
          onlyTriggerPhrase()
        }
        if (!triggerPathPatterns.isEmpty()) {
          includedRegions(triggerPathPatterns.join('\n'))
        }
        if (!excludePathPatterns.isEmpty()) {
          excludedRegions(excludePathPatterns)
        }

        extensions {
          commitStatus {
            // This is the name that will show up in the GitHub pull request UI
            // for this Jenkins project. It has a limit of 255 characters.
            delegate.context commitStatusContext.take(255)
          }

          // Comment messages after build completes.
          buildStatus {
            completedStatus('SUCCESS', '--none--')
            completedStatus('FAILURE', '--none--')
            completedStatus('ERROR', '--none--')
          }
        }
      }
    }
  }

  // Default maxWorkers is 12 to avoid jvm oom as in [BEAM-4847].
  static void setGradleSwitches(context, maxWorkers = 12) {
    def defaultSwitches = [
      // Continue the build even if there is a failure to show as many potential failures as possible.
      '--continue',
    ]

    for (String gradle_switch : defaultSwitches) {
      context.switches(gradle_switch)
    }
    context.switches("--max-workers=${maxWorkers}")

    // Ensure that parallel workers don't exceed total available memory.

    // For [BEAM-4847], hardcode Xms and Xmx to reasonable values (2g/4g).
    context.switches("-Dorg.gradle.jvmargs=-Xms2g")
    context.switches("-Dorg.gradle.jvmargs=-Xmx4g")

    // Include dependency licenses when build docker images on Jenkins, see https://s.apache.org/zt68q
    context.switches("-Pdocker-pull-licenses")
  }

  // Enable triggering postcommit runs against pull requests. Users can comment the trigger phrase
  // specified in the postcommit job and have the job run against their PR to run
  // tests not in the presubmit suite for additional confidence.
  static void enablePhraseTriggeringFromPullRequest(context,
      String commitStatusName,
      String prTriggerPhrase,
      boolean prPermitAll = true) {
    setPullRequestBuildTrigger(
        context,
        commitStatusName,
        prTriggerPhrase,
        true,
        prPermitAll)
  }

  // Sets this as a cron job, running on a schedule.
  static void setCronJob(context, String buildSchedule) {
    context.triggers {
      cron(buildSchedule)
    }
  }

  // Sets common config for jobs which run on a schedule; optionally on push
  static void setAutoJob(context,
      String buildSchedule = '0 */6 * * *',
      notifyAddress = 'builds@beam.apache.org',
      triggerOnCommit = false,
      emailIndividuals = false) {

    // Set build triggers
    context.triggers {
      // By default runs every 6 hours.
      cron(buildSchedule)

      if (triggerOnCommit){
        githubPush()
      }
    }


    context.publishers {
      // Notify an email address for each failed build (defaults to builds@).
      mailer(
          notifyAddress,
          /* _do_ notify every unstable build */ false,
          /* do not email individuals */ false)

      extendedEmail {
        triggers {
          aborted {
            recipientList(notifyAddress)
          }
          if (emailIndividuals) {
            firstFailure {
              sendTo {
                firstFailingBuildSuspects()
              }
            }
          }
        }
      }
    }
  }

  static def mapToArgString(LinkedHashMap<String, String> inputArgs) {
    List argList = []
    inputArgs.each({ // FYI: Replacement only works with double quotes.
      key, value ->
      argList.add("--$key=$value")
    })
    return argList.join(' ')
  }

  // Namespace must contain lower case alphanumeric characters or '-'
  static String getKubernetesNamespace(def jobName) {
    jobName = jobName.replaceAll("_", "-").toLowerCase()
    return "${jobName}-\${BUILD_ID}"
  }

  static String getKubeconfigLocationForNamespace(def namespace) {
    return '$WORKSPACE/' + "config-${namespace}"
  }

  /**
   * Transforms pipeline options to a string of format like below:
   * ["--pipelineOption=123", "--pipelineOption2=abc", ...]
   *
   * @param pipelineOptions A map of pipeline options.
   */
  static String joinPipelineOptions(Map pipelineOptions) {
    List<String> pipelineArgList = []
    pipelineOptions.each({ key, value ->
      pipelineArgList.add("\"--$key=$value\"")
    })
    return "[" + pipelineArgList.join(',') + "]"
  }

  /**
   * Transforms pipeline options to a string of format like below:
   * ["--pipelineOption=123", "--pipelineOption2=abc", ...]
   *
   * Use this variant when some options values contain json as string.
   *
   * @param pipelineOptions A map of pipeline options.
   */
  static String joinOptionsWithNestedJsonValues(Map pipelineOptions) {
    List<String> pipelineArgList = []
    pipelineOptions.each({ key, value ->
      pipelineArgList.add("\"--$key=${value.replaceAll("\"", "\\\\\\\\\"")}\"")
    })
    return "[" + pipelineArgList.join(',') + "]"
  }


  /**
   * Returns absolute path to beam project's files.
   * @param path A relative path to project resource.
   */
  static String makePathAbsolute(String path) {
    return '"$WORKSPACE/' + path + '"'
  }
}