name: CI

on:
  push:
    branches: ["main", "master"]
  pull_request:

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

jobs:
  test:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"
          cache: "pip"

      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: "22"

      - name: Install CI dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install fastapi uvicorn[standard] python-multipart pillow numpy httpx jinja2

      - name: Compile backend
        run: python -m compileall backend

      - name: Build frontend
        run: |
          npm --prefix frontend ci
          npm --prefix frontend run build

      - name: Smoke test FastAPI pages and posts
        run: |
          python - <<'PY'
          from fastapi.testclient import TestClient
          from backend.app.main import app

          client = TestClient(app, raise_server_exceptions=False)

          for path in ["/", "/board", "/post/1"]:
              response = client.get(path)
              assert response.status_code == 200, (path, response.status_code, response.text[:300])

          created = client.post(
              "/api/v1/posts",
              json={
                  "title": "CI smoke test",
                  "image_url": "data:image/png;base64,test",
                  "prediction": "A",
                  "confidence": 0.9,
              },
          )
          assert created.status_code == 200, created.text

          post_id = created.json()["id"]
          updated = client.put(f"/api/v1/posts/{post_id}", json={"title": "CI edited title"})
          assert updated.status_code == 200, updated.text
          assert updated.json()["title"] == "CI edited title"
          PY

      - name: Check model files
        run: |
          python - <<'PY'
          from pathlib import Path

          model_path = Path("ai/model/keras_model.h5")
          labels_path = Path("ai/model/labels.txt")

          print(f"model file present: {model_path.exists()}")
          print(f"labels file present: {labels_path.exists()}")

          if labels_path.exists():
              labels = [line.strip() for line in labels_path.read_text(encoding="utf-8").splitlines() if line.strip()]
              assert labels, "labels.txt is empty"
              print(f"labels count: {len(labels)}")
          PY