name: Dev — Build & local smoke test

# Validates that the build compiles and the server starts cleanly.
# No GCP deployment — this is the inner dev loop gate.
# Merge to stage when you want a real environment.

on:
  push:
    branches: [dev]
    paths:
      - 'src/**'
      - 'dist/**'
      - 'runtime/**'
      - 'Dockerfile.stage'
      - 'manifest.el'
      - '.gitea/workflows/dev.yaml'
      - '.gitea/workflows/stage.yaml'
      - '.gitea/workflows/deploy.yaml'

  workflow_dispatch:

jobs:
  build-smoke:
    runs-on: ubuntu-latest
    timeout-minutes: 30

    permissions:
      contents: read
      id-token: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Set up El SDK
        run: echo "EL_HOME=/opt/el" >> "$GITHUB_ENV"

      - name: Authenticate to GCP
        uses: google-github-actions/auth@v2
        with:
          credentials_json: ${{ secrets.GCP_SA_KEY }}

      - name: Set up gcloud SDK
        uses: google-github-actions/setup-gcloud@v2
        with:
          project_id: neuron-785695

      - name: Configure docker auth for Artifact Registry
        run: gcloud auth configure-docker us-central1-docker.pkg.dev --quiet

      - name: Compute image tag
        id: tag
        run: echo "tag=dev-${GITHUB_SHA:0:8}" >> "$GITHUB_OUTPUT"

      - name: Touch HTML placeholder files
        # El binary regenerates these at startup via fs_write. They must exist
        # in the build context for Dockerfile COPY to succeed. touch is
        # idempotent if the files already exist from a prior run.
        run: touch src/index.html src/about.html src/terms.html src/enterprise-terms.html

      - name: Build El binary (elb)
        # elb compiles each .el source independently (no combined mega-file),
        # then links via cc. Output: dist/neuron-landing (linux/amd64 binary).
        # This avoids the exponential memory growth that hits elc on the
        # concatenated main-combined.el approach.
        run: |
          set -euo pipefail
          export EL_HOME=/opt/el
          /opt/el/dist/bin/elb build --runtime=/opt/el/el-compiler/runtime
          echo "Binary: $(ls -lh dist/neuron-landing)"

      - name: Compile JS El sources
        run: |
          set -euo pipefail
          ELC=/opt/el/dist/platform/elc
          mkdir -p dist/js
          for f in src/js/*.el; do
            [ -f "$f" ] || continue
            name=$(basename "$f" .el)
            "$ELC" --target=js --bundle --minify --obfuscate "$f" > "dist/js/${name}.js"
            echo "  compiled: $f → dist/js/${name}.js"
          done

      - name: Build Docker image (local only — no push)
        run: |
          set -euo pipefail
          TAG="${{ steps.tag.outputs.tag }}"
          docker build \
            --cache-from us-central1-docker.pkg.dev/neuron-785695/neuron-marketing/marketing:latest \
            -f Dockerfile.stage \
            -t "marketing:${TAG}" \
            .

      - name: Local smoke test
        run: |
          set -euo pipefail
          IMAGE="marketing:${{ steps.tag.outputs.tag }}"

          docker run -d --name dev-smoke \
            -p 8080:8080 \
            -e PORT=8080 \
            -e NODE_ENV=production \
            -e LANDING_ROOT=/srv/landing \
            "$IMAGE"

          # entrypoint.sh sleeps 4s for soul-demo to load before starting neuron-web.
          # Poll up to 45s total.
          for i in $(seq 1 15); do
            STATUS=$(curl -sSo /dev/null -w "%{http_code}" --max-time 5 http://localhost:8080/ || echo "000")
            echo "Attempt $i/15: HTTP $STATUS"
            if [ "$STATUS" = "200" ]; then
              echo "Dev smoke test PASSED"
              docker stop dev-smoke && docker rm dev-smoke
              exit 0
            fi
            sleep 3
          done

          echo "--- container logs ---"
          docker logs dev-smoke || true
          docker stop dev-smoke && docker rm dev-smoke || true
          echo "Dev smoke test FAILED"
          exit 1