# https://aka.ms/yaml

variables:
  PIP_NO_CACHE_DIR: false
  PIP_USER: 1
  PIPENV_HIDE_EMOJIS: 1
  PIPENV_IGNORE_VIRTUALENVS: 1
  PIPENV_NOSPIN: 1
  PRE_COMMIT_HOME: $(Pipeline.Workspace)/pre-commit-cache
  PYTHONUSERBASE: $(Pipeline.Workspace)/py-user-base

jobs:
  - job: test
    displayName: 'Lint & Test'
    pool:
      vmImage: ubuntu-18.04

    variables:
      BOT_API_KEY: foo
      BOT_SENTRY_DSN: blah
      BOT_TOKEN: bar
      REDDIT_CLIENT_ID: spam
      REDDIT_SECRET: ham
      WOLFRAM_API_KEY: baz
      REDIS_PASSWORD: ''

    steps:
      - task: UsePythonVersion@0
        displayName: 'Set Python version'
        name: python
        inputs:
          versionSpec: '3.8.x'
          addToPath: true

      - task: Cache@2
        displayName: 'Restore Python environment'
        inputs:
          key: python | $(Agent.OS) | "$(python.pythonLocation)" | 0 | ./Pipfile | ./Pipfile.lock
          cacheHitVar: PY_ENV_RESTORED
          path: $(PYTHONUSERBASE)

      - script: echo '##vso[task.prependpath]$(PYTHONUSERBASE)/bin'
        displayName: 'Prepend PATH'

      - script: pip install pipenv
        displayName: 'Install pipenv'
        condition: and(succeeded(), ne(variables.PY_ENV_RESTORED, 'true'))

      - script: pipenv install --dev --deploy --system
        displayName: 'Install project using pipenv'
        condition: and(succeeded(), ne(variables.PY_ENV_RESTORED, 'true'))

      # Create an executable shell script which replaces the original pipenv binary.
      # The shell script ignores the first argument and executes the rest of the args as a command.
      # It makes the `pipenv run flake8` command in the pre-commit hook work by circumventing
      # pipenv entirely, which is too dumb to know it should use the system interpreter rather than
      # creating a new venv.
      - script: |
          printf '%s\n%s' '#!/bin/bash' '"${@:2}"' > $(python.pythonLocation)/bin/pipenv \
          && chmod +x $(python.pythonLocation)/bin/pipenv
        displayName: 'Mock pipenv binary'

      - task: Cache@2
        displayName: 'Restore pre-commit environment'
        inputs:
          key: pre-commit | "$(python.pythonLocation)" | 0 | .pre-commit-config.yaml
          path: $(PRE_COMMIT_HOME)

      # pre-commit's venv doesn't allow user installs - not that they're really needed anyway.
      - script: export PIP_USER=0; pre-commit run --all-files
        displayName: 'Run pre-commit hooks'

      - script: coverage run -m xmlrunner
        displayName: Run tests

      - script: coverage report -m && coverage xml -o coverage.xml
        displayName: Generate test coverage report

      - task: PublishCodeCoverageResults@1
        displayName: 'Publish Coverage Results'
        condition: succeededOrFailed()
        inputs:
          codeCoverageTool: Cobertura
          summaryFileLocation: coverage.xml

      - task: PublishTestResults@2
        condition: succeededOrFailed()
        displayName: 'Publish Test Results'
        inputs:
          testResultsFiles: '**/TEST-*.xml'
          testRunTitle: 'Bot Test Results'

  - job: build
    displayName: 'Build & Push Container'
    dependsOn: 'test'
    condition: and(succeeded(), ne(variables['Build.Reason'], 'PullRequest'), eq(variables['Build.SourceBranch'], 'refs/heads/master'))

    steps:
      - task: Docker@2
        displayName: 'Build & Push Container'
        inputs:
          containerRegistry: 'DockerHub'
          repository: 'pythondiscord/bot'
          command: 'buildAndPush'
          Dockerfile: 'Dockerfile'
          buildContext: '.'
          tags: 'latest'