backend_pipeline.yml

name: Backend Pipeline

# Workflow triggers
on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]
  schedule:
    - cron: 0 0 * * MON   # Schedule pipeline to run monday midnight after sunday ends
  workflow_dispatch:      # Enable manual runs of workflow

# Workflow stages
jobs:      
  # Perform Lint Checks
  lint:
    name: Lint Checks
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./backend
    steps:
    - uses: actions/checkout@v4
    - name: Use Node.js 20.x
      uses: actions/setup-node@v4
      with:
        node-version: '20.x'
    - name: Install pnpm
      run: npm install -g pnpm
    - name: Install Dependencies
      run: pnpm install
    - name: Run lint script
      run: pnpm run lint

  # Run Unit Tests
  test:
    name: Unit Tests
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./backend
    steps:
    - uses: actions/checkout@v4
    - name: Use Node.js 20.x
      uses: actions/setup-node@v4
      with:
        node-version: 20.x
    - name: Install pnpm
      run: npm install -g pnpm
    - name: Install dependencies
      run: pnpm install
    - name: Clear jest cache
      run: pnpm jest --clearCache
    - name: Run unit tests with jest
      run: pnpm run test

  # Build Application
  build:
    name: Build Application
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./backend
    steps:
    - uses: actions/checkout@v4
    - name: Use Node.js 20.x
      uses: actions/setup-node@v4
      with:
        node-version: '20.x'
    - name: Install pnpm
      run: npm install -g pnpm
    - name: Install Dependencies
      run: pnpm install
    - name: Compile TypeScript into JavaScript
      run: pnpm run build

  # Deploy Application to Development Environment
  deploy-dev:
    name: Deploy to Development Environment
    needs: [lint, test, build]  # lint, test, and build must pass before deployment
    if: github.event_name == 'schedule' || github.event_name == 'push' # only deploy on push and weekly CRON job
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
    - name: Log in to Docker Hub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME_DEV }}
        password: ${{ secrets.DOCKER_PASSWORD_DEV }}
    - name: Build and Push Docker image
      uses: docker/build-push-action@v5
      with:
        context: ./backend
        file: ./backend/Dockerfile.dev
        push: true
        tags: fitnessehealthapp/backend:development
        platforms: linux/amd64
    - name: Deploy Docker Image to Render
      run: |
        curl -X POST ${{ secrets.RENDER_DEPLOY_HOOK_DEV }}