name: 'Docker Compose Deploy'
description: 'Deploy application using Docker Compose'

inputs:
  compose_file:
    description: 'Path to docker-compose file'
    required: false
    default: 'docker-compose.yml'
  project_name:
    description: 'Docker Compose project name'
    required: true
  url:
    description: 'Url of the deployed application'
    required: true
  environment_file:
    description: 'Path to environment file'
    required: false
    default: '.env'
  image_url:
    description: 'Docker image tag to deploy'
    required: false
    default: 'latest'
  registry:
    description: 'Docker registry'
    required: false
    default: 'git.klemp.dev'
  deployment_key:
    description: 'SSH deployment private key'
    required: true

runs:
  using: 'composite'
  steps:
    - uses: webfactory/ssh-agent@v0.9.1
      with:
        ssh-private-key: ${{ inputs.deployment_key }}

    - name: Create environment file
      shell: bash
      run: |
        cat > ${{ inputs.environment_file }} << EOF
        IMAGE_URL=${{ inputs.image_url }}
        URL=${{ inputs.url }}
        REGISTRY=${{ inputs.registry }}
        PROJECT_NAME=${{ inputs.project_name }}
        COMPOSE_PROJECT_NAME=${{ inputs.project_name }}
        EOF

    - name: Debug environment file
      shell: bash
      run: |
        echo "=== ENVIRONMENT FILE DEBUG ==="
        echo "File path: ${{ inputs.environment_file }}"
        echo ""

        # Check if file exists
        if [ -f "${{ inputs.environment_file }}" ]; then
          echo "✅ Environment file exists"

          # Show file size and permissions
          ls -la "${{ inputs.environment_file }}"
          echo ""

          # Show file contents
          echo "📄 File contents:"
          echo "---"
          cat "${{ inputs.environment_file }}"
          echo "---"
          echo ""

          # Show line count
          LINE_COUNT=$(wc -l < "${{ inputs.environment_file }}")
          echo "📊 File has $LINE_COUNT lines"

          # Check for empty lines or whitespace issues
          echo "🔍 Checking for issues:"
          if grep -q "^$" "${{ inputs.environment_file }}"; then
            echo "⚠️  File contains empty lines"
          else
            echo "✅ No empty lines found"
          fi

          # Validate each variable is set
          echo "🔧 Variable validation:"
          while IFS='=' read -r key value; do
            if [ -n "$key" ] && [ -n "$value" ]; then
              echo "  ✅ $key = $value"
            elif [ -n "$key" ]; then
              echo "  ❌ $key is empty"
            fi
          done < "${{ inputs.environment_file }}"

        else
          echo "❌ Environment file does not exist!"
        fi
        echo "=============================="

    - name: Create Docker context
      shell: bash
      run: |
        docker context rm deploy_target 2>/dev/null || true

        docker context create deploy_target \
          --docker "host=ssh://${{ vars.ssh_user }}@${{ vars.ssh_host }}:${{ vars.ssh_port }}"

        docker --context deploy_target info

    - name: Stop existing deployment
      shell: bash
      run: |
        docker-compose --context deploy_target -f ${{ inputs.compose_file }} -p ${{ inputs.project_name }} down --remove-orphans || true

    - name: Pull latest images
      shell: bash
      run: |
        docker-compose --context deploy_target -f ${{ inputs.compose_file }} -p ${{ inputs.project_name }} pull

    - name: Deploy with Docker Compose
      id: deploy
      shell: bash
      run: |
        docker-compose --context deploy_target -f ${{ inputs.compose_file }} -p ${{ inputs.project_name }} up -d

        echo "Waiting for services to start..."
        sleep 10

        CONTAINERS=$(docker-compose --context deploy_target -f ${{ inputs.compose_file }} -p ${{ inputs.project_name }} ps --services | tr '\n' ',' | sed 's/,$//')
        echo "containers=$CONTAINERS" >> $GITHUB_OUTPUT

        echo "✅ Deployment completed successfully!"
        echo "🌐 URL: ${{ inputs.url }}"
        echo "📦 Containers: $CONTAINERS"

    - name: Show deployment status
      shell: bash
      run: |
        echo "=== Deployment Status ==="
        docker-compose --context deploy_target -f ${{ inputs.compose_file }} -p ${{ inputs.project_name }} ps
        echo "========================="