name: Reusable OpenTofu Deploy Template
on:
  workflow_call:
    inputs:
      proxmox_endpoint:
        description: "The URL endpoint for the Proxmox API"
        type: string
        default: "https://212.3.125.242:8006/"
      infisical_api_url:
        description: "Infisical API URL (for self-hosted instances)"
        type: string
        required: false
        default: "https://secrets.itlab-ffeks.dnu.edu.ua"
      infisical_env:
        description: "Infisical Environment"
        type: string
        required: false
    secrets:
      infisical_cicd_token:
        description: "Infisical Service Token for CI/CD secrets"
        required: true

jobs:
  deploy-to-proxmox:
    runs-on: ubuntu-latest
    env:
      # Proxmox Auth (Endpoint from inputs)
      PROXMOX_VE_ENDPOINT: ${{ inputs.proxmox_endpoint }}
      PROXMOX_VE_INSECURE: "true" 
      
      # Gitea Remote State Backend (Dynamic per-repository package/workspace)
      TF_HTTP_ADDRESS: "https://git.itlab-ffeks.dnu.edu.ua/api/packages/${{ gitea.repository_owner }}/terraform/state/${{ gitea.event.repository.name }}-${{ gitea.ref_name }}"
      TF_HTTP_LOCK_ADDRESS: "https://git.itlab-ffeks.dnu.edu.ua/api/packages/${{ gitea.repository_owner }}/terraform/state/${{ gitea.event.repository.name }}-${{ gitea.ref_name }}/lock"
      TF_HTTP_UNLOCK_ADDRESS: "https://git.itlab-ffeks.dnu.edu.ua/api/packages/${{ gitea.repository_owner }}/terraform/state/${{ gitea.event.repository.name }}-${{ gitea.ref_name }}/lock"
      TF_HTTP_LOCK_METHOD: "POST"
      TF_HTTP_UNLOCK_METHOD: "DELETE"
      TF_HTTP_USERNAME: ${{ gitea.actor }}
      TF_VAR_environment: ${{ gitea.ref_name }}

    steps:
      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Install Infisical CLI
        run: |
          curl -1sLf 'https://dl.cloudsmith.io/public/infisical/infisical-cli/setup.deb.sh' | sudo -E bash
          sudo apt-get update && sudo apt-get install -y infisical

      - name: Fetch secrets from Infisical
        run: |
          export INFISICAL_TOKEN="${{ secrets.infisical_cicd_token }}"
          export INFISICAL_API_URL="${{ inputs.infisical_api_url || 'https://app.infisical.com' }}"
          export INFISICAL_DOMAIN="$INFISICAL_API_URL"
          export INFISICAL_DISABLE_UPDATE_CHECK=true

          INFISICAL_ENV="${{ inputs.infisical_env }}"
          if [ -z "$INFISICAL_ENV" ]; then
            INFISICAL_ENV="${{ gitea.ref_name }}"
          fi

          # Fetch all secrets in JSON format
          echo "Exporting all secrets from Infisical..."
          infisical export --env="$INFISICAL_ENV" --format=json > secrets.json
          if [ $? -ne 0 ]; then
            echo "Error: Failed to fetch secrets from Infisical." >&2
            exit 1
          fi

          # Mask and write all secrets to GITHUB_ENV
          while IFS= read -r key && IFS= read -r value; do
            echo "::add-mask::$value"
            echo "$key=$value" >> $GITHUB_ENV
            if [ "$key" = "INFRASTRUCTURE_TOKEN" ]; then
              echo "TF_HTTP_PASSWORD=$value" >> $GITHUB_ENV
            fi
          done < <(jq -r 'to_entries[] | (.key, .value)' secrets.json)

          rm -f secrets.json

      - name: Verify Secrets
        run: |
          if [ -z "$PROXMOX_VE_API_TOKEN" ]; then
            echo "Error: PROXMOX_VE_API_TOKEN is not set or is empty." >&2
            exit 1
          fi
          if [ -z "$INFRASTRUCTURE_TOKEN" ]; then
            echo "Error: INFRASTRUCTURE_TOKEN is not set or is empty." >&2
            exit 1
          fi
          echo "Verification successful: both tokens are present."

      - name: Configure Git for private modules
        run: git config --global url."https://oauth2:$INFRASTRUCTURE_TOKEN@git.itlab-ffeks.dnu.edu.ua".insteadOf "https://git.itlab-ffeks.dnu.edu.ua"
        
      - name: Setup OpenTofu
        uses: opentofu/setup-opentofu@v1

      - name: OpenTofu Init
        run: tofu init

      - name: OpenTofu Validate
        run: tofu validate

      # For debugging.
      - name: OpenTofu Plan
        run: tofu plan

      - name: OpenTofu Apply
        run: tofu apply -auto-approve