name: Terraform Deploy

on:
  workflow_dispatch:
    inputs:
      instance_mode:
        description: "Instance mode"
        required: true
        default: "single"
        type: choice
        options:
          - single
          - multi

      service_name:
        description: "Service name (e.g. n8n)"
        required: false
        default: ""

      vm_name:
        description: "VM name (e.g. n8n-01)"
        required: false
        default: ""

      node_name:
        description: "Proxmox node (e.g. pop)"
        required: false
        default: ""

      app_port:
        description: "App port (e.g. 5678)"
        required: false
        default: "5678"

      vm_tags:
        description: "VM tags, comma-separated (e.g. agentic,prod)"
        required: false
        default: "agentic"

jobs:
  terraform:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Build tfvars
        env:
          VM_USER_SSHKEY: ${{ secrets.VM_USER_SSHKEY }}
          APP_PORT: ${{ github.event.inputs.app_port }}
          VM_TAGS: ${{ github.event.inputs.vm_tags }}
        run: |
          # Convert comma-separated tags to HCL list
          TAGS_HCL=$(echo "$VM_TAGS" | tr ',' '\n' | sed 's/^/"/;s/$/"/' | paste -sd ',' | sed 's/^/[/;s/$/]/')

          cat > ci.tfvars <<EOF
          instance_mode = "${{ github.event.inputs.instance_mode }}"

          instance = {
            service_name = "${{ github.event.inputs.service_name  }}"
            vm_name      = "${{ github.event.inputs.vm_name }}"
            node_name    = "${{ github.event.inputs.node_name }}"
            app_port     = ${APP_PORT}
            vm_tags      = ${TAGS_HCL}
          }

          vm_defaults = {
            vm_user_sshkey = "${VM_USER_SSHKEY}"
          }
          EOF

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v3

      - name: Terraform Init
        run: terraform init

      - name: Terraform Plan
        run: terraform plan -var-file="ci.tfvars"

      - name: Terraform Apply
        run: terraform apply -var-file="ci.tfvars" -auto-approve