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: "-"
  target:
    description: "Project type (e.g. dotnet, npm)"
    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: Prepare variables
      id: prepare
      shell: bash
      run: |
        YEAR=$(date +'%Y')
        MONTH=$(date +%-m)
        DAY=$(date +%-d)
        VERSION_SUFFIX="${{ inputs.version_suffix }}"
        SUFFIX_SEPARATOR="${{ inputs.suffix_separator }}"

        # Count tags for day and month prefixes to support different targets
        TAG_COUNT_DAY=$(git tag -l "${YEAR}.${MONTH}.${DAY}.*" | wc -l)
        TAG_COUNT_MONTH=$(git tag -l "${YEAR}.${MONTH}.*" | wc -l)

        echo "year=$YEAR" >> $GITHUB_OUTPUT
        echo "month=$MONTH" >> $GITHUB_OUTPUT
        echo "day=$DAY" >> $GITHUB_OUTPUT
        echo "version_suffix=$VERSION_SUFFIX" >> $GITHUB_OUTPUT
        echo "suffix_separator=$SUFFIX_SEPARATOR" >> $GITHUB_OUTPUT
        echo "tag_count_day=$TAG_COUNT_DAY" >> $GITHUB_OUTPUT
        echo "tag_count_month=$TAG_COUNT_MONTH" >> $GITHUB_OUTPUT

    - name: Calculate Version (dotnet)
      id: calc_dotnet
      if: ${{ inputs.target == 'dotnet' }}
      shell: bash
      run: |
        YEAR=${{ steps.prepare.outputs.year }}
        MONTH=${{ steps.prepare.outputs.month }}
        DAY=${{ steps.prepare.outputs.day }}
        VERSION_SUFFIX=${{ steps.prepare.outputs.version_suffix }}
        SUFFIX_SEPARATOR=${{ steps.prepare.outputs.suffix_separator }}
        TAG_COUNT=${{ steps.prepare.outputs.tag_count_day }}

        if [ "$TAG_COUNT" -eq 0 ]; then
          BUILD_NUMBER=0
        else
          BUILD_NUMBER=$(($TAG_COUNT + 1))
        fi

        if [ -n "$VERSION_SUFFIX" ]; then
          BUILD_VERSION="${YEAR}.${MONTH}.${DAY}.${BUILD_NUMBER}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
        else
          BUILD_VERSION="${YEAR}.${MONTH}.${DAY}.${BUILD_NUMBER}"
        fi

        echo "build_version=$BUILD_VERSION" >> $GITHUB_OUTPUT

    - name: Calculate Version (angular)
      id: calc_angular
      if: ${{ inputs.target == 'angular' }}
      shell: bash
      run: |
        YEAR=${{ steps.prepare.outputs.year }}
        MONTH=${{ steps.prepare.outputs.month }}
        DAY=${{ steps.prepare.outputs.day }}
        VERSION_SUFFIX=${{ steps.prepare.outputs.version_suffix }}
        SUFFIX_SEPARATOR=${{ steps.prepare.outputs.suffix_separator }}
        TAG_COUNT=${{ steps.prepare.outputs.tag_count_month }}

        if [ "$TAG_COUNT" -eq 0 ]; then
          BUILD_NUMBER=0
        else
          BUILD_NUMBER=$(($TAG_COUNT + 1))
        fi

        LAST_PART="${DAY}${BUILD_NUMBER}"
        if [ -n "$VERSION_SUFFIX" ]; then
          BUILD_VERSION="${YEAR}.${MONTH}.${LAST_PART}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
        else
          BUILD_VERSION="${YEAR}.${MONTH}.${LAST_PART}"
        fi

        echo "build_version=$BUILD_VERSION" >> $GITHUB_OUTPUT

    - name: Calculate Version (default)
      id: calc_default
      if: ${{ inputs.target != 'dotnet' && inputs.target != 'angular' }}
      shell: bash
      run: |
        YEAR=${{ steps.prepare.outputs.year }}
        MONTH=${{ steps.prepare.outputs.month }}
        DAY=${{ steps.prepare.outputs.day }}
        VERSION_SUFFIX=${{ steps.prepare.outputs.version_suffix }}
        SUFFIX_SEPARATOR=${{ steps.prepare.outputs.suffix_separator }}
        TAG_COUNT=${{ steps.prepare.outputs.tag_count_day }}

        if [ "$TAG_COUNT" -eq 0 ]; then
          BUILD_NUMBER=0
        else
          BUILD_NUMBER=$(($TAG_COUNT + 1))
        fi

        if [ -n "$VERSION_SUFFIX" ]; then
          BUILD_VERSION="${YEAR}.${MONTH}.${DAY}.${BUILD_NUMBER}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
        else
          BUILD_VERSION="${YEAR}.${MONTH}.${DAY}.${BUILD_NUMBER}"
        fi

        echo "build_version=$BUILD_VERSION" >> $GITHUB_OUTPUT

    - name: Publish Version
      shell: bash
      run: |
        BUILD_VERSION="${{ steps.calc_dotnet.outputs.build_version }}"
        if [ -z "$BUILD_VERSION" ]; then BUILD_VERSION="${{ steps.calc_angular.outputs.build_version }}"; fi
        if [ -z "$BUILD_VERSION" ]; then BUILD_VERSION="${{ steps.calc_default.outputs.build_version }}"; fi

        echo "$BUILD_VERSION" > version.txt
        echo "VERSION=$BUILD_VERSION" >> $GITHUB_ENV
        echo "Generated version: $BUILD_VERSION"

    - 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