name: "Terraform"

on:
  # Uncomment to enable staging deploy from main
  # push:
  #   branches:
  #     - main
  release:
    types: [published]
  pull_request:

jobs:
  terraform:
    name: "Terraform"
    runs-on: ubuntu-latest
    env:
      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
    defaults:
      run:
        working-directory: 07-managing-multiple-environments/file-structure/staging
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v1
        with:
          terraform_version: 1.0.1
          terraform_wrapper: false

      - name: Terraform Format
        id: fmt
        run: terraform fmt -check

      - name: Terraform Init
        id: init
        run: terraform init

      - name: Terraform Plan
        id: plan
        if: github.event_name == 'pull_request'
        # Route 53 zone must already exist for this to succeed!
        run: terraform plan -var db_pass=${{secrets.DB_PASS }} -no-color
        continue-on-error: true

      - uses: actions/github-script@0.9.0
        if: github.event_name == 'pull_request'
        env:
          PLAN: "terraform\n${{ steps.plan.outputs.stdout }}"
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const output = `#### Terraform Format and Style 🖌\`${{ steps.fmt.outcome }}\`
            #### Terraform Initialization ⚙️\`${{ steps.init.outcome }}\`
            #### Terraform Plan 📖\`${{ steps.plan.outcome }}\`

            <details><summary>Show Plan</summary>

            \`\`\`${process.env.PLAN}\`\`\`

            </details>

            *Pusher: @${{ github.actor }}, Action: \`${{ github.event_name }}\`*`;

              
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: output
            })

      - name: Terraform Plan Status
        if: steps.plan.outcome == 'failure'
        run: exit 1

      - uses: actions/setup-go@v2
        with:
          go-version: '^1.15.5'
          
      - name : Terratest Execution
        if: github.event_name == 'pull_request'
        working-directory: 08-testing/tests/terratest
        run: |
          go test . -v timeout 10m

      - name: Check tag
        id: check-tag
        run: |
          if [[ ${{ github.ref }} =~ ^refs\/tags\/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then echo ::set-output name=environment::production
          elif [[ ${{ github.ref }} == 'refs/heads/main' ]]; then echo ::set-output name=environment::staging
          else echo ::set-output name=environment::unknown
          fi

      - name: Terraform Apply Global
        if: github.event_name == 'push' || github.event_name == 'release'
        working-directory: 07-managing-multiple-environments/file-structure/global
        run: |
          terraform init
          terraform apply -auto-approve

      - name: Terraform Apply Staging
        if: steps.check-tag.outputs.environment == 'staging' && github.event_name == 'push'
        run: terraform apply -var db_pass=${{secrets.DB_PASS }} -auto-approve

      - name: Terraform Apply Production
        if: steps.check-tag.outputs.environment == 'production' && github.event_name == 'release'
        working-directory: 07-managing-multiple-environments/file-structure/production
        run: |
          terraform init
          terraform apply -var db_pass=${{secrets.DB_PASS }} -auto-approve