name: Build, Test & Publish

on:
  push:
    branches:
    - main
  pull_request:
    branches:
    - main
  workflow_dispatch:

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '20'
    
    - name: Install dependencies
      run: npm install
      
    - name: Build
      run: npm run build

  publish:
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'  
    name: Build and Publish Container Image
    runs-on: ubuntu-latest
    
    needs:
    - build

    steps:
    - uses: actions/checkout@v3
  
    - name: Setup Docker Metadata
      id: meta
      uses: docker/metadata-action@v4
      with:
          images: liamsgit.dev/LiamPietralla/code-snippets
          tags: |
            type=raw,value=latest

    - name: Login to Registry
      uses: docker/login-action@v3
      with:
        registry: liamsgit.dev
        username: ${{ secrets.REGISTRY_USERNAME }}
        password: ${{ secrets.REGISTRY_PASSWORD }}

    - name: Build and Push Docker Image to Registry
      uses: docker/build-push-action@v4 
      with:
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}

  deploy: 
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'  
    name: Deploy to Infrastructure
    runs-on: ubuntu-latest
    
    needs:
    - publish

    steps:
    - uses: actions/checkout@v3

    - name: Write GitHub SSH Key to File
      env: 
        SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
      run: |
        echo "$SSH_PRIVATE_KEY" > private.key
        sudo chmod 400 private.key

    - name: Write Ansible Inventory To File
      env: 
        APP_HOST: ${{ secrets.APP_HOST }}
      run: |
        echo "[app]" > hosts.ini
        echo "$APP_HOST" >> hosts.ini

    - name: Install Ansible
      run: |
        sudo apt-add-repository ppa:ansible/ansible -y
        sudo apt-get update -y
        sudo apt-get install ansible -y

    - name: Run Ansible Playbook to Configure Servers
      run: |
        export ANSIBLE_HOST_KEY_CHECKING=False # Disable host key checking
        ansible-playbook infra/ansible/deploy-playbook.yml --private-key private.key --inventory hosts.ini
      env: 
        APP_HOST: ${{ secrets.APP_HOST }}
        REGISTRY_USERNAME: ${{ secrets.DOCKER_USERNAME }}
        REGISTRY_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}