name: static-checks

on:
  pull_request:

jobs:
  versionExtract:
    name: Get min/max versions
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Terraform min/max versions
        id: minMax
        uses: clowdhaus/terraform-min-max@main
    outputs:
      minVersion: ${{ steps.minMax.outputs.minVersion }}
      maxVersion: ${{ steps.minMax.outputs.maxVersion }}

  versionEvaluate:
    name: Evaluate Terraform versions
    runs-on: ubuntu-latest
    needs: versionExtract
    strategy:
      fail-fast: false
      matrix:
        version:
          - ${{ needs.versionExtract.outputs.minVersion }}
          - ${{ needs.versionExtract.outputs.maxVersion }}
        directory:
          - examples/mysql_iam_cluster
          - examples/mysql_iam_instance
          - examples/postgresql_iam_cluster
          - examples/postgresql_iam_instance

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Terraform v${{ matrix.version }}
        uses: hashicorp/setup-terraform@v1
        with:
          terraform_version: ${{ matrix.version }}

      - name: Init & validate v${{ matrix.version }}
        run: |
          cd ${{ matrix.directory }}
          terraform init
          terraform validate

      - name: tflint
        uses: reviewdog/action-tflint@master
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          working_directory: ${{ matrix.directory }}
          fail_on_error: 'true'
          filter_mode: 'nofilter'
          flags: '--module'

  format:
    name: Check code format
    runs-on: ubuntu-latest
    needs: versionExtract

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Terraform v${{ needs.versionExtract.outputs.maxVersion }}
        uses: hashicorp/setup-terraform@v1
        with:
          terraform_version: ${{ needs.versionExtract.outputs.maxVersion }}

      - name: Check Terraform format changes
        run: terraform fmt --recursive -check=true