name: Pull Request Tests

on:
  pull_request:
    types: [opened, synchronize, reopened]
    branches:
      - main
      - production

concurrency:
  group: pr-tests-${{ github.event.pull_request.number }}
  cancel-in-progress: true

env:
  MIX_ENV: test

jobs:
  test-exunit:
    name: Run ExUnit Tests
    runs-on: ubuntu-22.04
    # Skip if PR is already merged
    if: github.event.pull_request.merged == false
    env:
      DATABASE_URL: ecto://postgres:postgres@postgres/towerops_test

    services:
      postgres:
        image: timescale/timescaledb-ha:pg17-all
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: towerops_test
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
      - name: Checkout code
        uses: https://github.com/actions/checkout@v4

      - name: Set up Elixir
        uses: https://github.com/erlef/setup-beam@v1
        with:
          version-type: strict
          elixir-version: '1.18.1'
          otp-version: '27.2'

      - name: Cache Mix
        uses: https://github.com/actions/cache@v4
        with:
          path: ~/.mix
          key: ${{ runner.os }}-mix-1.18.1-27.2
          restore-keys: ${{ runner.os }}-mix-

      - name: Cache deps
        uses: https://github.com/actions/cache@v4
        with:
          path: deps
          key: ${{ runner.os }}-deps-${{ hashFiles('mix.lock') }}
          restore-keys: ${{ runner.os }}-deps-

      - name: Cache _build
        uses: https://github.com/actions/cache@v4
        with:
          path: _build
          key: ${{ runner.os }}-build-v3-${{ hashFiles('lib/**/*.ex') }}-${{ hashFiles('mix.lock') }}
          restore-keys: ${{ runner.os }}-build-v3-

      - name: Install system dependencies
        run: |
          . /etc/os-release
          if [ "$ID" = "debian" ]; then
            if [ -f /etc/apt/sources.list ] && grep -q "^deb " /etc/apt/sources.list; then
              sed -i 's/ main$/ main contrib non-free non-free-firmware/' /etc/apt/sources.list
            fi
            for f in /etc/apt/sources.list.d/*.sources; do
              [ -f "$f" ] || continue
              sed -i 's/^Components: main$/Components: main contrib non-free non-free-firmware/' "$f"
            done
          fi
          apt-get update
          apt-get install -y libssl-dev libsnmp-dev snmp-mibs-downloader postgresql-client

      - name: Install dependencies
        run: mix deps.get

      - name: Compile C NIF
        run: make -C c_src

      - name: Compile (warnings as errors)
        run: mix compile --warnings-as-errors

      - name: Run tests
        run: mix test

      - name: Test summary
        if: always()
        run: |
          if [ ${{ job.status }} == 'success' ]; then
            echo "### ✅ All tests passed" >> $GITHUB_STEP_SUMMARY
          else
            echo "### ❌ Tests failed" >> $GITHUB_STEP_SUMMARY
          fi