# This is copied from the stan project
#
# Note [environment variables]
#
# It seems absurd, but the syntax for creating environment variables
# differs between Windows and Linux/MacOS.  See
#
# https://docs.github.com/en/actions/learn-github-actions/variables
#
# In Linux/MacOS we have to use
#
# run: echo "VARNAME=content" >> "$GITHUB_ENV"
#
# whereas in Windows we have to use
#
# run: echo "VARNAME=content" >> $env:GITHUB_ENV

name: Release

on:
  # Trigger the workflow on the new 'v*' tag created
  push:
    tags:
      - "v*"

jobs:
  create_release:
    name: Create Github Release
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v4

      - name: Create Release
        id: create_release
        uses: actions/create-release@v1.1.4
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ github.ref }}
          draft: true
          prerelease: false

      - name: Output Release URL File
        run: echo "${{ steps.create_release.outputs.upload_url }}" > release_url.txt
      - name: Save Release URL File for publish
        uses: actions/upload-artifact@v3
        with:
          name: release_url
          path: release_url.txt

  build_artifact:
    needs: [create_release]
    name: ${{ matrix.os }}/${{ github.ref }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: true
      matrix:
        os: [ubuntu-latest, macOS-latest, windows-latest]

    steps:
      - name: Check out code
        uses: actions/checkout@v4

      - name: Set tag name
        uses: olegtarasov/get-tag@v2.1.2
        id: tag
        with:
          tagRegex: "v(.*)"
          tagRegexGroup: 1

      - name: Setup Haskell
        uses: haskell-actions/setup@v2
        id: setup-haskell-cabal
        with:
          ghc-version: "latest"
          cabal-version: "latest"

      - name: Freeze
        run: |
          cabal freeze

      - name: Cache ~/.cabal/store
        uses: actions/cache@v4
        with:
          path: ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
          key: ${{ runner.os }}-${{ hashFiles('cabal.project.freeze') }}

      - name: Build binary
        run: |
          mkdir dist
          cabal install exe:tetris --install-method=copy --overwrite-policy=always --installdir=dist

      # See Note [environment variables]
      - if: matrix.os == 'windows-latest'
        name: Set binary path name on Windows
        run: echo "BINARY_PATH=./dist/tetris.exe" >> $env:GITHUB_ENV

      # See Note [environment variables]
      - if: matrix.os != 'windows-latest'
        name: Set binary path name not on Windows
        run: echo "BINARY_PATH=./dist/tetris" >> "$GITHUB_ENV"

      - if: matrix.os != 'macOS-latest'
        name: Compress binary
        uses: svenstaro/upx-action@2.3.0
        with:
          file: ${{ env.BINARY_PATH }}

      - name: Load Release URL File from release job
        uses: actions/download-artifact@v3
        with:
          name: release_url
          path: release_url

      # See Note [environment variables]
      - if: matrix.os == 'windows-latest'
        name: Get Release File Name & Upload URL on Widows
        run: |
          echo "upload_url=$(cat release_url/release_url.txt)" >> $env:GITHUB_ENV

      # See Note [environment variables]
      - if: matrix.os != 'windows-latest'
        name: Get Release File Name & Upload URL not on Widows
        run: |
          echo "upload_url=$(cat release_url/release_url.txt)" >> $GITHUB_ENV

      - name: Upload Release Asset
        id: upload-release-asset
        uses: actions/upload-release-asset@v1.0.2
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ env.upload_url }}
          asset_path: ${{ env.BINARY_PATH }}
          asset_name: tetris-${{ steps.tag.outputs.tag }}-${{ runner.os }}
          asset_content_type: application/octet-stream