name: CI / Deploy to HuggingFace Spaces

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:   # allow manual trigger from GitHub UI

jobs:
  # ── Gate: tests + type-check + build must pass before any deploy ──────────────
  test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"
          cache: pip

      - name: Install backend dependencies
        run: |
          pip install -r backend/requirements.txt
          # test-only plugins (mirror agents/pyproject.toml [dev]); asyncio_mode=auto
          # is configured there. Intentionally not in the prod image.
          pip install pytest pytest-asyncio pytest-mock

      - name: Run agent test suite
        working-directory: agents
        run: python -m pytest tests/ -q

      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: "20"

      - name: Set up pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 10

      # Run from the workspace root using the repo's own scripts, matching how
      # the project actually builds locally. The lockfile lives under apps/web,
      # so a non-frozen install is used to avoid root-lockfile false failures.
      - name: Install web dependencies
        run: pnpm install

      - name: Type-check
        run: pnpm type-check

      - name: Build
        run: pnpm build

  # ── Deploy: only on push to main, and only after `test` passes ────────────────
  deploy:
    needs: test
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          lfs: true

      - name: Push to HuggingFace Space
        env:
          HF_TOKEN: ${{ secrets.HF_TOKEN }}
          # Format: your-hf-username/your-space-name  (e.g. harsha/modelforge-backend)
          HF_SPACE_ID: ${{ secrets.HF_SPACE_ID }}
        run: |
          git config --global user.email "github-action@modelforge.ai"
          git config --global user.name  "ModelForge CI"

          # Create an orphan branch — single flat commit with NO git history.
          # This avoids the large files that exist in old commits being rejected
          # by HuggingFace Hub's 10 MB per-file limit.
          git checkout --orphan hf-deploy

          # Stage everything from the current working tree
          git add -A

          # Remove the legacy data directory (large static files not needed
          # in the Docker image — they are not referenced by the current code)
          git rm --cached backend/data/ -r --ignore-unmatch
          git rm --cached backend/uploads/ -r --ignore-unmatch
          git rm --cached agents/runs/ -r --ignore-unmatch
          git rm --cached agents/traces/ -r --ignore-unmatch

          git commit -m "deploy: $(date '+%Y-%m-%d %H:%M UTC')"

          git remote add space \
            "https://user:${HF_TOKEN}@huggingface.co/spaces/${HF_SPACE_ID}"

          # Force-push the flat commit — HF Space rebuilds Docker on every push
          git push space hf-deploy:main --force