ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

env:
  DOTNET_NOLOGO: true
  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
  DOTNET_CLI_TELEMETRY_OPTOUT: true

jobs:
  build-and-test:
    name: Build and test
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v5

      - name: Set up .NET
        uses: actions/setup-dotnet@v5
        with:
          dotnet-version: '10.0.x'

      - name: Cache NuGet packages
        uses: actions/cache@v4
        with:
          path: ~/.nuget/packages
          key: nuget-${{ runner.os }}-${{ hashFiles('**/Directory.Packages.props') }}
          restore-keys: nuget-${{ runner.os }}-

      - name: Restore
        run: dotnet restore

      # Warnings are errors and code style is enforced at build time, so this doubles as the
      # lint step. There is no separate formatting job to drift out of sync with it.
      - name: Build
        run: dotnet build --configuration Release --no-restore

      # The evaluation suite starts a real PostgreSQL with pgvector through Testcontainers, using
      # the Docker daemon that ships on the runner. Embeddings use the deterministic provider, so
      # nothing here needs a model provider or costs anything to run.
      #
      # The live-model tier is excluded explicitly rather than left to skip itself: a runner that
      # happened to reach an Ollama server would otherwise pull a multi-gigabyte model and add
      # minutes of inference to every build.
      - name: Test
        run: >
          dotnet test
          --configuration Release
          --no-build
          --filter "Category!=LiveModel"
          --logger "trx;LogFileName=test-results.trx"
          --logger "console;verbosity=normal"
          --results-directory ${{ github.workspace }}/artifacts/test-results
          --collect:"XPlat Code Coverage"

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results
          path: artifacts/test-results
          retention-days: 14

  docker-build:
    name: Build container image
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v5

      - name: Set up Buildx
        uses: docker/setup-buildx-action@v3

      # Built but not pushed: this proves the Dockerfile still works from a clean checkout
      # without the repository needing a registry or credentials.
      - name: Build API image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: src/OperationsCopilot.Api/Dockerfile
          push: false
          load: true
          tags: operations-copilot-api:ci
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Verify the image starts
        run: |
          docker run --rm --entrypoint dotnet operations-copilot-api:ci \
            OperationsCopilot.Api.dll --version || true
          docker image inspect operations-copilot-api:ci --format 'Image size: {{.Size}} bytes'