name: Nightly pre-release on PyPI

on:
  schedule:
    # Run at midnight UTC every day
    - cron: "0 0 * * *"
  workflow_dispatch:

env:
  HATCH_VERSION: "1.16.5"

permissions:
  contents: read

jobs:
  nightly-release:
    runs-on: ubuntu-latest
    environment: pypi
    permissions:
      id-token: write
    # Always build from main for consistency (scheduled and manual runs)
    steps:
      - name: Checkout main
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
        with:
          persist-credentials: false
          ref: main
          fetch-depth: 1

      # Reads VERSION.txt, strips any -rcN suffix, and appends .devYYYYMMDDHHMMSS
      # (e.g. 2.25.0.dev20250217000000) so each run gets a unique, PEP 440–valid pre-release version.
      - name: Set nightly version
        id: set-version
        run: |
          BASE_VERSION=$(sed 's/-rc[0-9]*$//' VERSION.txt)
          TIMESTAMP=$(date +%Y%m%d%H%M%S)
          NIGHTLY_VERSION="${BASE_VERSION}.dev${TIMESTAMP}"
          echo "version=${NIGHTLY_VERSION}" >> "$GITHUB_OUTPUT"
          echo "${NIGHTLY_VERSION}" > VERSION.txt
          echo "Building haystack-ai version: ${NIGHTLY_VERSION}"

      - name: Install Hatch
        run: |
          python -m pip install --upgrade pip
          pip install hatch==${{ env.HATCH_VERSION }} --uploaded-prior-to=P1D

      - name: Build Haystack
        run: hatch build

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0