name: Verify Infrastructure

on:
  schedule:
    # cron format: 'minute hour dayofmonth month dayofweek'
    # this will run at noon UTC every day (7am EST / 8am EDT)
    - cron: '0 12 * * *'

jobs:
  check_staging_drift:
    runs-on: ubuntu-latest
    name: Check for drift of staging terraform configuration
    environment: staging
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      # Looks like we need to install Terraform ourselves now!
      # https://github.com/actions/runner-images/issues/10796#issuecomment-2417064348
      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v3
        with:
          terraform_version: "^1.7.5"
          terraform_wrapper: false

      - name: Check for drift
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.TERRAFORM_STATE_ACCESS_KEY }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.TERRAFORM_STATE_SECRET_ACCESS_KEY }}
          TF_VAR_cf_user: ${{ secrets.CLOUDGOV_USERNAME }}
          TF_VAR_cf_password: ${{ secrets.CLOUDGOV_PASSWORD }}
        run: |
          cd terraform/staging
          terraform init
          terraform plan -detailed-exitcode
          exit_code=$?
          if [ $exit_code -eq 0 ]; then
            echo "No changes detected.  Intrastructure is up-to-date."
          elif [ $exit_code -eq 2 ]; then
            echo "Changes detected.  Infrastructure drift found."
            exit 1
          else
            echo "Error running terraform plan."
            exit $exit_code
          fi

  check_demo_drift:
    runs-on: ubuntu-latest
    name: Check for drift of demo terraform configuration
    environment: demo
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: 'production'

      # Looks like we need to install Terraform ourselves now!
      # https://github.com/actions/runner-images/issues/10796#issuecomment-2417064348
      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v3
        with:
          terraform_version: "^1.7.5"
          terraform_wrapper: false

      - name: Check for drift
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.TERRAFORM_STATE_ACCESS_KEY }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.TERRAFORM_STATE_SECRET_ACCESS_KEY }}
          TF_VAR_cf_user: ${{ secrets.CLOUDGOV_USERNAME }}
          TF_VAR_cf_password: ${{ secrets.CLOUDGOV_PASSWORD }}
        run: |
          cd terraform/demo
          terraform init
          terraform plan -detailed-exitcode
          exit_code=$?
          if [ $exit_code -eq 0 ]; then
            echo "No changes detected.  Intrastructure is up-to-date."
          elif [ $exit_code -eq 2 ]; then
            echo "Changes detected.  Infrastructure drift found."
            exit 1
          else
            echo "Error running terraform plan."
            exit $exit_code
          fi

  check_prod_drift:
    runs-on: ubuntu-latest
    name: Check for drift of production terraform configuration
    environment: production
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: 'production'

      # Looks like we need to install Terraform ourselves now!
      # https://github.com/actions/runner-images/issues/10796#issuecomment-2417064348
      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v3
        with:
          terraform_version: "^1.7.5"
          terraform_wrapper: false

      - name: Check for drift
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.TERRAFORM_STATE_ACCESS_KEY }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.TERRAFORM_STATE_SECRET_ACCESS_KEY }}
          TF_VAR_cf_user: ${{ secrets.CLOUDGOV_USERNAME }}
          TF_VAR_cf_password: ${{ secrets.CLOUDGOV_PASSWORD }}
        run: |
          cd terraform/production
          terraform init
          terraform plan -detailed-exitcode
          exit_code=$?
          if [ $exit_code -eq 0 ]; then
            echo "No changes detected.  Intrastructure is up-to-date."
          elif [ $exit_code -eq 2 ]; then
            echo "Changes detected.  Infrastructure drift found."
            exit 1
          else
            echo "Error running terraform plan."
            exit $exit_code
          fi