ci.yml

# Run Python unit tests in continuous integration mode.
name: Continuous Integration

on:
  pull_request:
  push:
    branches:
      - main

jobs:
  python-tests:
    runs-on: ubuntu-20.04

    services:
      # Unit test rely on a local MySQL instance with an empty root password.
      mysql:
        image: mariadb:10.4
        env:
          MARIADB_ALLOW_EMPTY_ROOT_PASSWORD: yes
        ports:
          - 3306:3306
        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=5

      redis:
        # Some unit tests also try to write to Redis
        image: redis
        ports:
          - 6379:6379
        options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
      - uses: actions/checkout@v4
        # Don't need lfs because we're not referencing the dev-db in this workflow.

      - name: Set up Python 3.12.0
        uses: actions/setup-python@v5
        with:
          python-version: '3.12.0'

      - name: Install dependencies
        run: |
          pip install --upgrade pip
          pip install pipenv
          pipenv install --system --deploy --ignore-pipfile --dev

      - name: Verify MySQL connection from host
        run: |
          mysql --host 127.0.0.1 --port 3306 -uroot -e "SHOW DATABASES"

      - name: Create test databases
        run: |
          mysql --host 127.0.0.1 --port 3306 -uroot -e 'CREATE DATABASE enwp10_test; CREATE DATABASE enwikip_test;'

      - name: Copy credentials
        run: |
          cp wp1/credentials.py.e2e wp1/credentials.py
          cp wp1/credentials.py.dev.e2e wp1/credentials.py.dev

      - name: Test with pytest, with coverage
        run: |
          pipenv run pytest --cov=wp1

      - name: Upload to Codecov
        uses: codecov/codecov-action@v4
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
        with:
          fail_ci_if_error: true

  frontend-cypress:
    runs-on: ubuntu-20.04

    steps:
      - uses: actions/checkout@v4
        with:
          lfs: true

      - name: Set up Python 3.12.0
        uses: actions/setup-python@v5
        with:
          python-version: '3.12.0'

      - uses: actions/cache@v4
        name: Cache pip dependencies
        id: pip-cache
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-${{ hashFiles('**/Pipfile.lock') }}
          restore-keys: |
            ${{ runner.os }}-pip-

      - name: Install Python dependencies
        run: |
          pip install --upgrade pip
          pip install pipenv
          pipenv install --system --deploy --dev

      - name: Get yarn cache directory path
        id: yarn-dep-cache-dir-path
        run: cd wp1-frontend && echo "YARN_CACHE_DIR=$(yarn cache dir)" >> $GITHUB_OUTPUT

      - uses: actions/cache@v4
        name: Setup Yarn dep cache
        id: yarn-dep-cache
        with:
          path: ${{ steps.yarn-dep-cache-dir-path.outputs.YARN_CACHE_DIR }}
          key: ${{ runner.os }}-yarn-dep-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-dep-

      - name: Install Javascript dependencies
        run: cd wp1-frontend && yarn install --frozen-lockfile

      - name: Copy credentials
        run: |
          cp wp1/credentials.py.e2e wp1/credentials.py
          cp wp1/credentials.py.dev.e2e wp1/credentials.py.dev

      # This is the dev database, the dev redis, and the dev workers.
      # We don't technically need the last one.
      - name: Start Docker dev services
        run: docker compose -f docker-compose-dev.yml up -d --build

      - name: Wait for Docker dev services to be up (30s)
        run: sleep 30s
        shell: bash

      - name: Start web API server
        timeout-minutes: 2
        env:
          FLASK_APP: wp1.web.app
          FLASK_DEBUG: 1
        run: pipenv run gunicorn -b 0.0.0.0:5000 'wp1.web.app:create_app()' --log-file=output.log -D

      - name: Build frontend server
        run: |
          cd wp1-frontend
          yarn build --mode staging

      - name: Start frontend server
        run: |
          cd wp1-frontend
          pipenv run python -m http.server 5173 --directory dist/ &

      - name: Wait for API and frontend server to be up (10s)
        run: sleep 10s
        shell: bash

      - name: Run frontend tests
        run: |
          cd wp1-frontend
          $(yarn bin)/cypress run

      - name: Stop containers
        continue-on-error: true
        if: always()
        run: docker compose -f "docker-compose-dev.yml" down

      - uses: actions/upload-artifact@v4
        continue-on-error: true
        if: always()
        with:
          name: screenshots
          path: |
            wp1-frontend/cypress/screenshots/*
            output.log