library 'status-jenkins-lib@v1.6.0'

pipeline {
  agent { label "${getAgentLabel()} && x86_64" }

  parameters {
    string(
      name: 'NIMFLAGS',
      description: 'Flags for Nim compilation.',
      defaultValue: params.NIMFLAGS ?: [
        '--colors:off',
        '-d:insecure',
        '-d:disableMarchNative',
        '--parallelBuild:6',
      ].join(' ')
    )
    string(
      name: 'LOG_LEVEL',
      description: 'Build logging level. (DEBUG, TRACE)',
      defaultValue: params.LOG_LEVEL ?: 'DEBUG'
    )
    string(
      name: 'VERBOSITY',
      description: 'Makefile verbosity level.(0-2)',
      defaultValue: params.VERBOSITY ?: '1'
    )
    string(
      name: 'MAKEFLAGS',
      description: 'Makefile flags.',
      defaultValue: params.MAKEFLAGS ?: '-j6'
    )
    booleanParam(
      name: 'EXPERIMENTAL',
      description: 'Enable experimental features.',
      defaultValue: false
    )
  }

  options {
    timestamps()
    /* Prevent Jenkins jobs from running forever */
    timeout(time: 30, unit: 'MINUTES')
    /* Limit builds retained. */
    buildDiscarder(logRotator(
      numToKeepStr: '3',
      daysToKeepStr: '30',
      artifactNumToKeepStr: '1',
    ))
  }

  environment {
    TARGET = getAgentLabel()
  }

  stages {
    stage('Deps') { steps { script {
      /* Avoid checking multiple times. */
      v2changed = versionWasChanged('v2')
      /* TODO: Re-add caching of Nim compiler. */
      nix.shell("make ${params.MAKEFLAGS} V=${params.VERBOSITY} update", pure: false)
      nix.shell("make ${params.MAKEFLAGS} V=${params.VERBOSITY} deps", pure: false)
    } } }

    stage('Binaries') {
      parallel {
        stage('V2') {
          when { expression { v2changed } }
          steps { script {
            nix.shell("make ${params.MAKEFLAGS} NIMFLAGS=\"${params.NIMFLAGS}\" V=${params.VERBOSITY} EXPERIMENTAL=${params.EXPERIMENTAL} all")
          } }
        }
      }
    }

    stage('Run Tests') {
      parallel {
        stage('V2') {
          when { expression { v2changed } }
          steps { script {
            nix.shell("make ${params.MAKEFLAGS} NIMFLAGS=\"${params.NIMFLAGS}\" V=${params.VERBOSITY} EXPERIMENTAL=${params.EXPERIMENTAL} test")
          } }
        }
      }
    }

    stage('Upload') {
      when { expression { v2changed } }
      steps { script {
        def out = genOutputFilename()
        sh "mv build/wakunode2 ${out}"
        env.PKG_URL = s3.uploadArtifact(out)
        jenkins.setBuildDesc(Waku: env.PKG_URL)
      } }
    }
  } // stages
  post {
    success { script { github.notifyPR(true) } }
    failure { script { github.notifyPR(false) } }
    always { cleanWs() }
  } // post
} // pipeline


/* This allows us to use one Jenkinsfile and run
 * jobs on different platforms based on job name. */
def getAgentLabel() {
    if (params.AGENT_LABEL) {
        return params.AGENT_LABEL
    }
    def tokens = env.JOB_NAME.split('/')
    for (platform in ['linux', 'macos', 'windows']) {
      if (tokens.contains(platform)) { return platform }
    }
    throw new Exception('No agent provided or found in job path!')
}

def genOutputFilename() {
  return [
    "wakunode2", utils.timestamp(), utils.gitCommit(), getAgentLabel()
  ].join('-') + (env.NODE_NAME.startsWith('windows') ? '.exe' : '.bin')
}

def versionWasChanged(version) {
  def changes = sh(
    script: "git diff --name-only origin/${env.CHANGE_TARGET}",
    returnStdout: true
  )
  if (changes =~ "(?m)^(Makefile|waku.nimble|config.nims|vendor|ci|shell.nix).*") {
    return true
  }
  if (version == 'v2' && changes =~ "(?m)^(apps|tools)/.*") {
    return true
  }
  if (changes =~ "(?m)^(waku|tests|examples)/(${version}|common)/.*") {
    return true
  }
  return false
}