name: "Set Version"
description: "Generates a date-based build version, creates a git tag and uploads version artifact"

inputs:
  version_suffix:
    description: "Suffix for version (e.g. dev, alpha, beta)"
    required: false
    default: ""
  suffix_separator:
    description: "Separator between version and suffix (either '.' or '-')"
    required: false
    default: "-"

runs:
  using: "composite"
  steps:
    - name: Checkout Repository
      uses: https://github.com/actions/checkout@v3
      with:
        token: ${{ env.CI_ACCESS_TOKEN }}

    - name: Fetch Tags
      shell: bash
      run: |
        git fetch --tags

    - name: Calculate Version
      id: calculate
      shell: bash
      run: |
        DATE_LEADING=$(date +'%Y.%m.%d')

        YEAR=$(date +'%Y')
        MONTH_NL=$(date +%-m)
        DAY_NL=$(date +%-d)

        TAG_COUNT=$(git tag -l "${DATE_LEADING}.*" | wc -l)
        BUILD_NUMBER="${TAG_COUNT}"  # 0 on first build, 1 on second, etc.

        VERSION_SUFFIX="${{ inputs.version_suffix }}"
        SUFFIX_SEPARATOR="${{ inputs.suffix_separator }}"

        # Regular (keeps leading zeros in date)
        if [ -n "$VERSION_SUFFIX" ]; then
          BUILD_VERSION="${DATE_LEADING}.${BUILD_NUMBER}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
        else
          BUILD_VERSION="${DATE_LEADING}.${BUILD_NUMBER}"
        fi

        # Dotnet variant: no leading zeros for month/day, omit build segment when 0
        DOTNET_DATE="${YEAR}.${MONTH_NL}.${DAY_NL}"
        if [ "${BUILD_NUMBER}" -eq 0 ]; then
          if [ -n "$VERSION_SUFFIX" ]; then
            DOTNET_VERSION="${DOTNET_DATE}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
          else
            DOTNET_VERSION="${DOTNET_DATE}"
          fi
        else
          if [ -n "$VERSION_SUFFIX" ]; then
            DOTNET_VERSION="${DOTNET_DATE}.${BUILD_NUMBER}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
          else
            DOTNET_VERSION="${DOTNET_DATE}.${BUILD_NUMBER}"
          fi
        fi

        # NPM variant: year.month.(DDbb) where DD=day zero-padded to 2, bb=build zero-padded to 2
        DAY_PAD=$(printf '%02d' "${DAY_NL}")
        BUILD_PAD=$(printf '%02d' "${BUILD_NUMBER}")
        NPM_DAY_BUILD="${DAY_PAD}${BUILD_PAD}"
        if [ -n "$VERSION_SUFFIX" ]; then
          NPM_VERSION="${YEAR}.${MONTH_NL}.${NPM_DAY_BUILD}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
        else
          NPM_VERSION="${YEAR}.${MONTH_NL}.${NPM_DAY_BUILD}"
        fi

        echo "$BUILD_VERSION" > version.txt
        echo "$BUILD_VERSION" > version
        echo "$DOTNET_VERSION" > dotnet-version.txt
        echo "$DOTNET_VERSION" > dotnet-version
        echo "$NPM_VERSION" > npm-version.txt
        echo "$NPM_VERSION" > npm-version

        echo "VERSION=$BUILD_VERSION" >> $GITHUB_ENV
        echo "DOTNET_VERSION=$DOTNET_VERSION" >> $GITHUB_ENV
        echo "NPM_VERSION=$NPM_VERSION" >> $GITHUB_ENV

    - name: Create Git Tag
      shell: bash
      run: |
        git config user.name "ci"
        git config user.email "dev@sh-edraft.de"

        git tag "$VERSION"
        git push origin "$VERSION"

    - name: Upload Version Artifact
      uses: https://github.com/actions/upload-artifact@v3
      with:
        name: version
        path: version.txt

    - name: Upload Dotnet Version Artifact
      uses: https://github.com/actions/upload-artifact@v3
      with:
        name: dotnet-version
        path: dotnet-version.txt

    - name: Upload NPM Version Artifact
      uses: https://github.com/actions/upload-artifact@v3
      with:
        name: npm-version
        path: npm-version.txt