import org.elasticsearch.gradle.OS
import org.gradle.initialization.BuildRequestMetaData

import java.util.concurrent.TimeUnit

long startTime = project.gradle.services.get(BuildRequestMetaData).getStartTime()

buildScan {
  URL jenkinsUrl = System.getenv('JENKINS_URL') ? new URL(System.getenv('JENKINS_URL')) : null
  String buildNumber = System.getenv('BUILD_NUMBER')
  String buildUrl = System.getenv('BUILD_URL')
  String jobName = System.getenv('JOB_NAME')
  String nodeName = System.getenv('NODE_NAME')

  tag OS.current().name()

  // Automatically publish scans from Elasticsearch CI
  if (jenkinsUrl?.host?.endsWith('elastic.co')) {
    publishAlways()
    buildScan.server = 'https://gradle-enterprise.elastic.co'
  }

  // Link to Jenkins worker logs and system metrics
  if (nodeName) {
    link 'System logs', "https://infra-stats.elastic.co/app/infra#/logs?" +
      "&logFilter=(expression:'host.name:${nodeName}',kind:kuery)"
    buildFinished {
      link 'System metrics', "https://infra-stats.elastic.co/app/infra#/metrics/host/" +
        "${nodeName}?_g=()&metricTime=(autoReload:!f,refreshInterval:5000," +
        "time:(from:${startTime - TimeUnit.MILLISECONDS.convert(5, TimeUnit.MINUTES)},interval:%3E%3D1m," +
        "to:${System.currentTimeMillis() + TimeUnit.MILLISECONDS.convert(5, TimeUnit.MINUTES)}))"
    }
  }

  // Jenkins-specific build scan metadata
  if (jenkinsUrl) {
    // Parse job name in the case of matrix builds
    // Matrix job names come in the form of "base-job-name/matrix_param1=value1,matrix_param2=value2"
    def splitJobName = jobName.split('/')
    if (splitJobName.length > 1 && splitJobName.last() ==~ /^([a-zA-Z0-9_\-]+=[a-zA-Z0-9_\-]+,?)+$/) {
      def baseJobName = splitJobName.dropRight(1).join('/')
      tag baseJobName
      value 'Job Name', baseJobName
      def matrixParams = splitJobName.last().split(',')
      matrixParams.collect { it.split('=') }.each { param ->
        value "MATRIX_${param[0].toUpperCase()}", param[1]
      }
    } else {
      tag jobName
      value 'Job Name', jobName
    }

    tag 'CI'
    link 'Jenkins Build', buildUrl
    link 'GCP Upload', "https://console.cloud.google.com/storage/elasticsearch-ci-artifacts/jobs/${jobName}/build/${buildNumber}.tar.bz2"
    value 'Job Number', buildNumber

    System.getenv().getOrDefault('NODE_LABELS', '').split(' ').each {
      value 'Jenkins Worker Label', it
    }

    // Add SCM information
    def isPrBuild = System.getenv('ROOT_BUILD_CAUSE_GHPRBCAUSE') != null
    if (isPrBuild) {
      value 'Git Commit ID', System.getenv('ghprbActualCommit')
      value 'Git Branch', System.getenv('ghprbTargetBranch')
      tag System.getenv('ghprbTargetBranch')
      tag "pr/${System.getenv('ghprbPullId')}"
      tag 'pull-request'
      link 'Source', "https://github.com/elastic/elasticsearch/tree/${System.getenv('ghprbActualCommit')}"
      link 'Pull Request', System.getenv('ghprbPullLink')
    } else {
      if (System.getenv('GIT_BRANCH')) {
        def branch = System.getenv('GIT_BRANCH').split('/').last()
        value 'Git Branch', branch
        tag branch
      }
      if (System.getenv('GIT_COMMIT')) {
        value 'Git Commit ID', System.getenv('GIT_COMMIT')
        link 'Source', "https://github.com/elastic/elasticsearch/tree/${System.getenv('GIT_COMMIT')}"
        background {
          def changes = "git diff --name-only ${System.getenv('GIT_PREVIOUS_COMMIT')}..${System.getenv('GIT_COMMIT')}".execute().text.trim()
          value 'Git Changes', changes
        }
      }
    }
  } else {
    tag 'LOCAL'
  }
}