trigger:
  - master
  - release

pr:
  - master
  - release

# Different users have different machine setups, we run the build three times, on ubuntu, osx, and windows
strategy:
  matrix:
    linux:
      imageName: "ubuntu-16.04"
    # mac:
    #   imageName: "macos-10.14"
    # windows:
    #   imageName: "vs2017-win2016"
  maxParallel: 3

pool:
  vmImage: $(imageName)

variables:
  currentImage: $(imageName)
  codecov: $(CODECOV_TOKEN)
  VERSION:

steps:
  - bash: ls -la
  - bash: pwd
  # This task pulls the <version> value from the org.hl7.fhir.r5 project pom.xml file. All modules are released as 
  # the same version, at the same time, as defined in the root level pom.xml.
  - task: PowerShell@2
    inputs:
      targetType: 'inline'
      script: |
        [xml]$pomXml = Get-Content -Path .\pom.xml
        # version
        Write-Host $pomXml.project.version
        $version=$pomXml.project.version
        Write-Host "##vso[task.setvariable variable=version]$version"

  # Prints out the build version, for debugging purposes
  - bash: echo Pulled version from pom.xml => $(version)

  # Azure pipelines cannot pass variables between pipelines, but it can pass files, so we
  # pass the build id (ex: 1.1.13-SNAPSHOT) as a string in a file. 
  # This is used in the release pipeline, so we create it here.
  # This is only done for the release branch.
  - bash: |
      echo $(version)
      VERSION=$(version)
      echo "$VERSION" > $(System.DefaultWorkingDirectory)/VERSION
    condition: and(eq(variables.currentImage, 'ubuntu-16.04'), eq(variables['Build.SourceBranch'], 'refs/heads/release'))

  # Copies the VERSION file containing the build id (ex: 1.1.13-SNAPSHOT) to the staging directory
  # This is done for release versions only.
  - task: CopyFiles@2
    condition: and(eq(variables.currentImage, 'ubuntu-16.04'), eq(variables['Build.SourceBranch'], 'refs/heads/release'))
    displayName: 'Copy Files to: $(build.artifactstagingdirectory)'
    inputs:
      SourceFolder: '$(System.Defaultworkingdirectory)'
      Contents: "$(System.DefaultWorkingDirectory)/VERSION"
      TargetFolder: '$(build.artifactstagingdirectory)'

  # Runs 'mvn clean package'
  - task: Maven@3
    inputs:
      mavenPomFile: 'pom.xml'
      mavenOptions: '-Xmx3072m'
      javaHomeOption: 'JDKVersion'
      jdkVersionOption: '1.8'
      jdkArchitectureOption: 'x64'
      publishJUnitResults: true
      testResultsFiles: '**/surefire-reports/TEST-*.xml'
      goals: 'clean package'

  # Upload test results to codecov    
  - script: bash <(curl https://codecov.io/bash) -t $(codecov)
    displayName: 'codecov Bash Uploader'
    condition: and(eq(variables.currentImage, 'ubuntu-16.04'), eq(variables['Build.SourceBranch'], 'refs/heads/master'))

  # Publishes the test results to build artifacts.
  - task: PublishCodeCoverageResults@1
    displayName: 'Publish JaCoCo test results '
    inputs:
      codeCoverageTool: 'JaCoCo'
      summaryFileLocation: '$(System.DefaultWorkingDirectory)/org.hl7.fhir.report/target/site/jacoco-aggregate/jacoco.xml'
      reportDirectory: '$(System.DefaultWorkingDirectory)/org.hl7.fhir.report/target/site/jacoco-aggregate/'
    condition: and(eq(variables.currentImage, 'ubuntu-16.04'), eq(variables['Build.SourceBranch'], 'refs/heads/master'))
    
  # Publishes the built Validator jar to build artifacts. Primarily for testing and debugging builds.
  - task: PublishPipelineArtifact@1
    displayName: 'Publish Validator jar'
    condition: and(eq(variables.currentImage, 'ubuntu-16.04'), eq(variables['Build.SourceBranch'], 'refs/heads/release'))
    inputs:
      targetPath: "$(System.DefaultWorkingDirectory)/org.hl7.fhir.validation/target/org.hl7.fhir.validation-$(version).jar"
      artifactName: Validator

  # Publishes the files we've moved into the staging directory, so they can be accessed by the 
  # release pipeline. You will notice that we only do this for the ubuntu build, as doing it 
  # for each of the three release pipelines will cause conflicts.
  # This is done for release versions only.
  - task: PublishBuildArtifacts@1
    condition: and(eq(variables.currentImage, 'ubuntu-16.04'), eq(variables['Build.SourceBranch'], 'refs/heads/release'))
    displayName: 'Publish Build Artifacts'
    inputs:
      PathtoPublish: '$(build.artifactstagingdirectory)'