name: "Update branch alias"

on: # yamllint disable-line rule:truthy
  push:
    tags: ["*"]

jobs:
  branch-alias:
    name: "Update branch alias"
    runs-on: "ubuntu-latest"

    steps:
      - name: "Set up PHP"
        uses: "shivammathur/setup-php@v2"
        with:
          php-version: "7.4"
          coverage: "none"

      - name: "Checkout code"
        uses: "actions/checkout@v4"
        with:
          ref: "main"

      - name: "Find branch alias"
        id: "find_alias"
        run: |
          TAG=$(echo $GITHUB_REF | cut -d'/' -f 3)
          echo "Last tag was $TAG"
          ARR=(${TAG//./ })
          ARR[1]=$((${ARR[1]}+1))
          echo "name=alias::${ARR[0]}.${ARR[1]}" >> $GITHUB_OUTPUT

      - name: "Update branch alias"
        run: |
          CURRENT_ALIAS=$(composer config extra.branch-alias.dev-main | cut -d'-' -f 1)

          # If there is a current value on the branch alias
          if [ ! -z $CURRENT_ALIAS ]; then
            NEW_ALIAS=${{ steps.find_alias.outputs.alias }}
            CURRENT_ARR=(${CURRENT_ALIAS//./ })
            NEW_ARR=(${NEW_ALIAS//./ })

            if [ ${CURRENT_ARR[0]} -gt ${NEW_ARR[0]} ]; then
                echo "The current value for major version is larger"
                exit 1;
            fi

            if [ ${CURRENT_ARR[0]} -eq ${NEW_ARR[0]} ] && [ ${CURRENT_ARR[1]} -gt ${NEW_ARR[1]} ]; then
                echo "The current value for minor version is larger"
                exit 1;
            fi
          fi

          composer config extra.branch-alias.dev-main ${{ steps.find_alias.outputs.alias }}-dev

      - name: "Create Pull Request"
        uses: "peter-evans/create-pull-request@v5"
        with:
          base: "main"
          branch: "branch-alias-update"
          author: "GitHub <noreply@github.com>"
          committer: "GitHub <noreply@github.com>"
          commit-message: "Updating branch alias to ${{ steps.find_alias.outputs.alias }}"
          title: "Update branch alias"
          labels: "pinned, do not merge"
          body: |
            Since we just tagged a new version, we need to update composer.json branch alias. This should not be merged until there are new features, as it would prevent patch releases.