name: Deploy
on:
  push:
    branches:
      - main
  workflow_dispatch:
    inputs:
      environment:
        description: 'Deployment environment'
        required: true
        type: choice
        options:
          - dev
          - stg
          - prd

jobs:
  extract_environment:
    runs-on: ubuntu-latest
    outputs:
      environment: ${{ steps.extract_environment.outputs.environment }}
    env:
      EVENT: ${{ github.event_name }}
      DEPLOY_ENV: ${{ github.event.inputs.environment }}
    steps:
      - name: Extract Environment
        run: |
          if [ ${EVENT} == "workflow_dispatch" ]; then
            echo "##[set-output name=environment;]$(echo ${DEPLOY_ENV})"
          elif [ ${GITHUB_REF} == "refs/heads/main" ]; then
            echo "##[set-output name=environment;]$(echo "prd")"
          fi
        id: extract_environment

  semantic_release:
    runs-on: ubuntu-latest
    outputs:
      new_release_published: ${{ steps.semantic.outputs.new_release_published }}
      new_release_version: ${{ (steps.semantic.outputs.new_release_published == 'true' && steps.semantic.outputs.new_release_version) || (github.event_name == 'workflow_dispatch' && '0.0.0') }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - if: github.event_name != 'workflow_dispatch'
        name: Semantic Release
        uses: cycjimmy/semantic-release-action@v2
        id: semantic
        with:
          semantic_version: 16
          extra_plugins: |
            conventional-changelog-eslint
          branches: |
            [
              'main'
            ]
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  deploy:
    if: ${{ github.event_name == 'workflow_dispatch' || needs.semantic_release.outputs.new_release_published == 'true' }}
    needs: [extract_environment, semantic_release]
    runs-on:
      [self-hosted, '${{ needs.extract_environment.outputs.environment }}']

    steps:
      - name: Printing stats
        env:
          EVENT: ${{ github.event_name }}
          IMAGE_TAG: ${{ needs.semantic_release.outputs.new_release_version }}
          ENV: ${{ needs.extract_environment.outputs.environment }}
        run: echo ${GITHUB_REF#refs/heads/}

      - name: Checkout
        uses: actions/checkout@v2

      - name: Update Pip
        run: |
          python3 -m pip install --upgrade pip

      - name: Install Docker Compose
        run: |
          python3 -m pip install docker-compose --upgrade

      - name: Install AWS CLI
        run: |
          python3 -m pip install awscli --upgrade

      - name: Install AWS Elastic Beanstalk CLI
        run: |
          python3 -m pip install awsebcli --upgrade

      - name: Configure AWS Region
        uses: aws-actions/configure-aws-credentials@v1
        id: aws
        with:
          aws-region: us-east-1

      - name: Login to AWS ECR
        id: login_ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Build, Tag, and Push Image to AWS ECR
        env:
          ENV: ${{ needs.extract_environment.outputs.environment }}
          IMAGE_TAG: ${{ needs.semantic_release.outputs.new_release_version }}
          ACCOUNT_ID: ${{ steps.aws.outputs.aws-account-id }}
        run: |
          docker-compose -f build.docker-compose.yml build
          docker-compose -f build.docker-compose.yml push

      - name: Create ZIP file to Deploy AWS Beanstalk
        env:
          ENV: ${{ needs.extract_environment.outputs.environment }}
          IMAGE_TAG: ${{ needs.semantic_release.outputs.new_release_version }}
          ACCOUNT_ID: ${{ steps.aws.outputs.aws-account-id }}
        run: |
          sed -i -e "s/\${ENV}/$ENV/g" docker-compose.yml
          sed -i -e "s/\${IMAGE_TAG}/$IMAGE_TAG/g" docker-compose.yml
          sed -i -e "s/\${ACCOUNT_ID}/$ACCOUNT_ID/g" docker-compose.yml
          zip deploy.zip docker-compose.yml  -r .ebextensions

      - name: Deploy AWS Beanstalk
        env:
          ENV: ${{ needs.extract_environment.outputs.environment }}
          AWS_REGION: us-east-1
          APP_NAME: ${{ github.event.repository.name }}
        run: |
          eb use $APP_NAME-$ENV
          echo -e "deploy:\n  artifact: deploy.zip" >> .elasticbeanstalk/config.yml
          eb deploy

      - name: Remove Docker's Trash
        if: always()
        run: |
          docker system prune --volumes -a -f
          docker system df