name: Build python package

on:
  workflow_dispatch:
    inputs:
      VERSION:
        description: 'Python version to build and upload'
        default: '3.9.9'
        required: true
      PUBLISH_RELEASES:
        description: 'Whether to publish releases'
        required: true
        default: 'false'
      PLATFORMS:
        description: 'Platforms for execution in "os" or "os_arch" format (arch is "x64" by default)'
        required: true
        default: 'ubuntu-18.04,ubuntu-20.04,ubuntu-22.04,macos-10.15,windows-2019_x64,windows-2019_x86'
  pull_request:
    paths-ignore:
    - 'versions-manifest.json'
    - 'LICENSE'
    - '**.md'
    branches:
    - 'main'

env:
  VERSION: ${{ github.event.inputs.VERSION || '3.9.9' }}
defaults:
  run:
    shell: pwsh

jobs:
  generate_matrix:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.generate-matrix.outputs.matrix }}
    steps:
      - name: Generate execution matrix
        id: generate-matrix
        run: |
          $configurations = "${{ github.event.inputs.platforms || 'ubuntu-18.04,ubuntu-20.04,ubuntu-22.04,macos-10.15,windows-2019_x64,windows-2019_x86' }}".Split(",").Trim()
          $matrix = @()

          foreach ($configuration in $configurations) {
            $parts = $configuration.Split("_")
            $os = $parts[0]
            $arch = if ($parts[1]) {$parts[1]} else {"x64"}
            switch -wildcard ($os) {
              "*ubuntu*" { $platform = $os.Replace("ubuntu","linux")}
              "*macos*" { $platform = 'darwin' }
              "*windows*" { $platform = 'win32' }
            }
            $matrix += @{
              'platform' = $platform
              'os' = $os
              'arch' = $arch
            }
          }
          echo "::set-output name=matrix::$($matrix | ConvertTo-Json -Compress)"

  build_python:
    needs: generate_matrix
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJson(needs.generate_matrix.outputs.matrix) }}
    runs-on: ${{ matrix.os }}
    env:
      ARTIFACT_NAME: python-${{ github.event.inputs.VERSION || '3.9.9' }}-${{ matrix.platform }}-${{ matrix.arch }}
    steps:

      - name: Check out repository code
        uses: actions/checkout@v2
        with:
          submodules: true

      - name: Build Python ${{ env.VERSION }}
        run: |
          ./builders/build-python.ps1 -Version $env:VERSION `
                  -Platform ${{ matrix.platform }} -Architecture ${{ matrix.arch }}

      - name: Publish artifact
        uses: actions/upload-artifact@v2
        with:
          name: ${{ env.ARTIFACT_NAME }}
          path: ${{ runner.temp }}/artifact

  test_python:
    needs: [generate_matrix, build_python]
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJson(needs.generate_matrix.outputs.matrix) }}
    runs-on: ${{ matrix.os }}
    env:
      ARTIFACT_NAME: python-${{ github.event.inputs.VERSION || '3.9.9' }}-${{ matrix.platform }}-${{ matrix.arch }}
    steps:

      - name: Check out repository code
        uses: actions/checkout@v2
        with:
          submodules: true

      - name: Fully cleanup the toolcache directory before testing
        run: ./helpers/clean-toolcache.ps1 -ToolName "Python"

      - name: Download artifact
        uses: actions/download-artifact@v2
        with:
          path: ${{ runner.temp }}

      - name: Extract files
        run: |
          if ('${{ matrix.platform }}' -eq 'win32') {
            $artifactName = "${{ env.ARTIFACT_NAME }}.zip"
            7z.exe x "$artifactName" -y | Out-Null
          } else {
            $artifactName = "${{ env.ARTIFACT_NAME }}.tar.gz"
            tar -xzf $artifactName
          }
        working-directory: ${{ runner.temp }}/${{ env.ARTIFACT_NAME }}

      - name: Apply build artifact to the local machine
        run: |
          if ('${{ matrix.platform }}' -eq 'win32') {
            powershell ./setup.ps1
            } else {
              sh ./setup.sh
              cp ${{ runner.temp }}/${{ env.ARTIFACT_NAME }}/build_output.txt ${{ runner.temp }}
            }
        working-directory: ${{ runner.temp }}/${{ env.ARTIFACT_NAME }}

      - name: Setup Python ${{ env.VERSION }}
        uses: actions/setup-python@v2
        with:
          python-version: ${{ env.VERSION }}
          architecture: ${{ matrix.arch }}

      - name: Verbose sysconfig dump
        if: runner.os == 'Linux' || runner.os == 'macOS'
        run: python ./sources/python-config-output.py
        working-directory: ${{ github.workspace }}/tests

      - name: Verbose python binary links
        if: runner.os == 'Linux' || runner.os == 'macOS'
        run: |
          $pythonLocation = which python
          if ('${{ matrix.platform }}' -eq 'darwin') { otool -L $pythonLocation } else { ldd $pythonLocation }

      - name: Run tests
        run: |
            Install-Module Pester -Force -Scope CurrentUser
            Import-Module Pester
            $pesterContainer = New-PesterContainer -Path './python-tests.ps1' -Data @{
                Version="${{ env.VERSION }}";
                Platform="${{ matrix.platform }}";
            }
            $Result = Invoke-Pester -Container $pesterContainer -PassThru
            if ($Result.FailedCount -gt 0) {
              $host.SetShouldExit($Result.FailedCount)
              exit $Result.FailedCount
            }
        working-directory: ${{ github.workspace }}/tests

  publish_release:
      name: Publish release
      if: github.event_name == 'workflow_dispatch' && github.event.inputs.PUBLISH_RELEASES == 'true'
      needs: test_python
      runs-on: ubuntu-latest
      steps:
      - uses: actions/download-artifact@v2

      - name: Publish Release ${{ env.VERSION }}
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.VERSION }}-${{ github.run_id }}
          release_name: ${{ env.VERSION }}
          body: |
            Python ${{ env.VERSION }}

      - name: Upload release assets
        uses: actions/github-script@v2
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const fs = require('fs');
            for (let artifactDir of fs.readdirSync('.')) {
              let artifactName = fs.readdirSync(`${artifactDir}`)[0];
              console.log(`Upload ${artifactName} asset`);
              github.repos.uploadReleaseAsset({
                owner: context.repo.owner,
                repo: context.repo.repo,
                release_id: ${{ steps.create_release.outputs.id }},
                name: artifactName,
                data: fs.readFileSync(`./${artifactDir}/${artifactName}`)
              });
            }

  trigger_pr:
    name: Trigger "Create Pull Request" workflow
    needs: publish_release
    runs-on: ubuntu-latest
    steps:
    - name: Trigger "Create Pull Request" workflow
      uses: actions/github-script@v3
      with:
        github-token: ${{ secrets.PERSONAL_TOKEN }}
        script: |
          github.actions.createWorkflowDispatch({
            owner: context.repo.owner,
            repo: context.repo.repo,
            workflow_id: 'create-pr.yml',
            ref: 'main'
          });