name: Check Deployed Version

on:
  workflow_dispatch:
    inputs:
      environment:
        description: 'Target environment'
        type: environment
        required: true

jobs:
  check:
    name: 'Check version (${{ inputs.environment }})'
    runs-on: ubuntu-latest
    environment: ${{ inputs.environment }}

    steps:
      - name: Check current deployed version
        id: current
        env:
          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
        run: |
          SSH_HOST="${{ vars.SSH_HOST }}"
          SSH_USER="${{ vars.SSH_USER || 'root' }}"
          TENANT="${{ vars.TENANT_NAME }}"
          BASE_DIR="${{ vars.BASE_DIR || './sfp-server' }}"

          if [ -z "$SSH_HOST" ] || [ -z "$SSH_PRIVATE_KEY" ]; then
            echo "SSH not configured for environment '${{ inputs.environment }}'"
            echo "current_tag=unknown" >> $GITHUB_OUTPUT
            echo "current_fqdn=unknown" >> $GITHUB_OUTPUT
            exit 0
          fi

          mkdir -p ~/.ssh
          echo "$SSH_PRIVATE_KEY" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          ssh-keyscan -H "$SSH_HOST" >> ~/.ssh/known_hosts 2>/dev/null

          CURRENT_TAG=$(ssh -i ~/.ssh/deploy_key "$SSH_USER@$SSH_HOST" \
            "grep '^IMAGE_TAG=' ${BASE_DIR}/tenants/${TENANT}/.env 2>/dev/null | cut -d= -f2" \
            2>/dev/null || echo "unknown")

          CURRENT_FQDN=$(ssh -i ~/.ssh/deploy_key "$SSH_USER@$SSH_HOST" \
            "grep '^IMAGE_FQDN=' ${BASE_DIR}/tenants/${TENANT}/.env 2>/dev/null | cut -d= -f2" \
            2>/dev/null || echo "unknown")

          echo "current_tag=$CURRENT_TAG" >> $GITHUB_OUTPUT
          echo "current_fqdn=$CURRENT_FQDN" >> $GITHUB_OUTPUT
          echo "Currently deployed: $CURRENT_FQDN:$CURRENT_TAG"

      - name: Generate summary
        run: |
          CURRENT_TAG="${{ steps.current.outputs.current_tag }}"
          CURRENT_FQDN="${{ steps.current.outputs.current_fqdn }}"
          CONFIGURED_TAG="${{ vars.IMAGE_TAG || 'latest' }}"
          CONFIGURED_FQDN="${{ vars.IMAGE_FQDN }}"

          echo "## SFP Server Version Status (${{ inputs.environment }})" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "| | Image | Tag |" >> $GITHUB_STEP_SUMMARY
          echo "|---|-------|-----|" >> $GITHUB_STEP_SUMMARY
          echo "| **Deployed** | \`$CURRENT_FQDN\` | \`$CURRENT_TAG\` |" >> $GITHUB_STEP_SUMMARY
          echo "| **Configured** | \`$CONFIGURED_FQDN\` | \`$CONFIGURED_TAG\` |" >> $GITHUB_STEP_SUMMARY

          if [ "$CURRENT_TAG" != "$CONFIGURED_TAG" ] && [ "$CURRENT_TAG" != "unknown" ]; then
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "Deployed version differs from configured. Run **Update SFP Server** to update." >> $GITHUB_STEP_SUMMARY
          elif [ "$CURRENT_TAG" = "unknown" ]; then
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "Could not determine currently deployed version." >> $GITHUB_STEP_SUMMARY
          else
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "Server is running the configured version." >> $GITHUB_STEP_SUMMARY
          fi