run-name: Deploy to ${{ inputs.deploy_target }} by @${{ github.actor }}

 on:
  push:

on:
 push:
  branches:
   - 'main'
   - 'releases/**'
  branches-ignore:
   - 'updates'

on:
 push:
  tags:
   - prod
   - v1.**

on:
 push:
  paths:
   - '**.js'

on:
 push:
  paths-ignore:
    - '.github/workflows/**'

 on:
  pull_request:

on:
 pull_request:
  types: [opened, reopened]

on: workflow_dispatch

on:
  workflow_dispatch:
    inputs:
      TFAction:
        type: choice
        description: Terraform action
        options:
        - Apply
        - Destroy

<insert rest of workflow between here>

  steps:
   - name: Terraform Apply - manually
    if: ${{ inputs.TFAction == 'apply'}}
    run: terraform apply -auto-approve -input=false
    
   - name: Terraform Destroy - manually
    if: ${{ inputs.TFAction == 'destroy'}}
    run: terraform destroy -auto-approve    

env:
 ARM_CLIENT_ID: ${{secrets.ARM_CLIENT_ID}}
 ARM_CLIENT_SECRET: ${{secrets.ARM_CLIENT_SECRET}}
 ARM_TENANT_ID: ${{secrets.ARM_TENANT_ID}}
 ARM_SUBSCRIPTION_ID: ${{secrets.ARM_SUBSCRIPTION_ID}}

defaults:
 run:
  shell: bash
  working-directory: project/

# .github/workflows/infrastructure.yaml
#
# this workflow will
#   1) create a github hosted ubuntu runner
#   2) use github hosted secrets to authenticate to azure
#   3) checkout the code from the working-directory
#   4) install terraform on the runner
#   5) check whether the configuration files are formatted properly
#   6) initialize the terraform backend
#   7) validate the terraform file
#   8) generate a terraform plan
#       8a) if the trigger is a pull_request then the format, init and plan will be written to the comments
#   9) highlights if a plan fails
#   10) if destroy is selected via a workflow_dispatch the resources will be destroyed
#   11) if all else is okay then the resources will be created/updated

name: Infrastructure

# this workflow should only run when a commit is pushed to the main branch or on any pull requests
# any changes to the workflow folder will be ignored
on:
  workflow_dispatch:
    inputs:
      TFAction:
        type: choice
        description: Terraform action
        options:
        - Apply
        - Destroy

  push:
    paths-ignore:
      - '.github/workflows/**'
    branches:
      - main
  
  pull_request:

# this workflow uses data in the this path
defaults:
  run:
    working-directory: project/

# use a github runner
jobs:
  action:
    runs-on: ubuntu-latest

# use github secrets to authenticate to azure
    env:
      ARM_CLIENT_ID: ${{secrets.ARM_CLIENT_ID}}
      ARM_CLIENT_SECRET: ${{secrets.ARM_CLIENT_SECRET}}
      ARM_TENANT_ID: ${{secrets.ARM_TENANT_ID}}
      ARM_SUBSCRIPTION_ID: ${{secrets.ARM_SUBSCRIPTION_ID}}


    steps:
      # checkout the current configuration from the working-directory
      - name: Checkout the code
        uses: actions/checkout@v3
    
      # retrieves the Terraform CLI used in the GitHub action workflow
      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v1

      # checks whether the configuration has been properly formatted. If the configuration isn't properly formatted this step will produce an error.
      - name: Terraform format
        id: fmt
        run: terraform fmt

      # initializes the configuration used in the GitHub action workflow
      - name: Terraform Init
        id: init
        run: terraform init
        
      # validates the configuration used in the GitHub action workflow
      - name: Terraform Validate
        id: validate
        run: terraform validate -no-color

      # generates a Terraform plan
      - name: Terraform Plan
        id: plan
        run: terraform plan -no-color -input=false
        continue-on-error: true

      # adds a comment to the pull request with the results of the format, init and plan steps.
      # in addition, it displays the plan output (steps.plan.outputs.stdout).
      # this step only runs on pull requests.
      - name: Update Pull Request
        uses: actions/github-script@v6
        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 }}\`
            #### Terraform Validation ✅\`${{ steps.validate.outcome }}\`
            <details><summary>Show Plan</summary>
            \`\`\`\n
            ${process.env.PLAN}
            \`\`\`
            </details>
            *Pushed by: @${{ github.actor }}, Action: \`${{ github.event_name }}\`*`;
            github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: output
            })            
      
      # returns whether a plan was successfully generated or not.
      # this step highlights whenever a plan fails because the "Terraform Plan" step continues on error
      - name: Terraform Plan Status
        if: steps.plan.outcome == 'failure'
        run: exit 1
      
      # applies the configuration (automated trigger)
      # this step will only run when a commit is pushed to main
      # either directly or as a result of a pull request
      - name: Terraform Apply - on push
        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
        run: terraform apply -auto-approve -input=false

      # allows you to create all the resources (manual trigger)
      # only runs when manually triggered by workflow dispatch and selecting the apply choice
      - name: Terraform Apply - manually
        if: ${{ inputs.TFAction == 'apply'}}
        run: terraform apply -auto-approve -input=false

      # allows you to destroy all the resources (manual trigger)
      # only runs when manually triggered by workflow dispatch and selecting the destroy choice
      - name: Terraform Destroy - manually
        if: ${{ inputs.TFAction == 'destroy'}}
        run: terraform destroy -auto-approve