name: Tests and Retrieval Eval

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

permissions:
  contents: read

concurrency:
  group: ci-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  test-and-evaluate:
    name: Pytest and Recall Gate
    runs-on: ubuntu-latest
    timeout-minutes: 30

    env:
      TOKENIZERS_PARALLELISM: "false"
      PYTHONUNBUFFERED: "1"

    steps:
      - name: Check out repository
        uses: actions/checkout@v7

      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: "3.11"
          cache: pip
          cache-dependency-path: requirements-lock.txt

      - name: Install locked dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements-lock.txt

      - name: Run unit tests
        run: |
          pytest tests/ -v

      - name: Build a fresh vector index
        run: |
          rm -rf data/chroma
          python src/index.py

      - name: Run retrieval evaluation gate
        run: |
          python src/eval.py \
            --mode dense \
            --k 5 \
            --min-recall 0.90