name: 'Deploy to OCI Registry'
description: 'Build and push a Docker image to an OCI Registry'
inputs:
  registry-url:
    description: 'OCI Registry URL'
    required: true
  registry-token:
    description: 'OCI Registry Token'
    required: true
  architectures:
    description: 'Architectures to build for'
    required: true
    default: 'amd64,arm64'
  tags:
    description: 'Tags to apply to the image'
    required: true
    default: 'latest'
  name:
    description: 'Name of the image'
    required: true
    default: "auto"
  dockerfile:
    description: 'Path to the Dockerfile'
    required: true
    default: './Dockerfile'
  owner:
    description: 'OCI Registry owner'
    required: true
    default: ${{ github.repository_owner }}
env:
  VALID_ARCHITECTURES: 'amd64,arm64'
runs:
  using: "composite"
  steps:
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v2

    - name: Install Docker
      id: install-docker-quick
      shell: bash
      run: |
        echo "🐋 Installing Docker..."
        curl -fsSL https://get.docker.com | sh
        echo "✅ Docker installed"
        docker --version
      

    - name: Set up Docker Buildx
      id: setup-buildx
      uses: docker/setup-buildx-action@v3

    - name: Validating Inputs
      shell: bash
      id: validate-inputs
      env:
        VALID_ARCHITECTURES: ${{ env.VALID_ARCHITECTURES }}
        TAGS: ${{ inputs.tags }}
        ARCHITECTURES: ${{ inputs.architectures }}
        NAME: ${{ inputs.name }}
        REGISTRY_URL: ${{ inputs.registry-url }}
        REGISTRY_OWNER: ${{ inputs.owner }}
        DOCKERFILE: ${{ inputs.dockerfile }}
      run: |
        bash ./scripts/validate_input.sh

    - name: Summary of Inputs
      shell: bash
      id: summary
      env:
        NAME: ${{ inputs.name }}
        REGISTRY_URL: ${{ inputs.registry-url }}
        REGISTRY_OWNER: ${{ inputs.owner }}
        ARCHITECTURES: ${{ inputs.architectures }}
        TAGS: ${{ inputs.tags }}
        DOCKERFILE: ${{ inputs.dockerfile }}
      run: |
        echo "📦 Building image for: $NAME"
        echo "🔗 Registry URL: $REGISTRY_URL"
        echo "🔑 Registry Owner: $REGISTRY_OWNER"
        echo "🏗️ Architectures: $ARCHITECTURES"
        echo "🏷️ Tags: $TAGS"
        echo "📄 Dockerfile: $DOCKERFILE"

    - name: Authenticate with OCI Registry
      id: login
      shell: bash
      env:
        REGISTRY_URL: ${{ inputs.registry-url }}
        REGISTRY_OWNER: ${{ inputs.owner }}
        REGISTRY_TOKEN: ${{ inputs.registry-token }}
      run: |
        echo "🐋 Logging on to OCI Registry..."
        echo "$REGISTRY_TOKEN" | docker login "$REGISTRY_URL" -u "$REGISTRY_OWNER" --password-stdin
        if [ $? -ne 0 ]; then
          echo "❌ Failed to authenticate with OCI Registry"
          exit 1
        fi
        echo "✅ Authenticated with OCI Registry"

    - name: Build and push OCI Image
      id: build
      shell: bash
      env:
        ARCHITECTURES: ${{ inputs.architectures }}
        TAGS: ${{ inputs.tags }}
        NAME: ${{ inputs.name }}
        REGISTRY_URL: ${{ inputs.registry-url }}
        DOCKERFILE: ${{ inputs.dockerfile }}
        REPOSITORY_NAME: ${{ github.repository }}
      run: |
        # Determine image name if set to auto
        if [ "$NAME" == "auto" ]; then
          echo "🔍 Auto-detecting image name..."
          NAME=$(echo "$REPOSITORY_NAME" | tr '[:upper:]' '[:lower:]')
          echo "🔍 Auto-detected image name: $NAME"
        fi

        # Process tags into an array and build tag arguments
        IFS=',' read -r -a TAG_ARRAY <<< "$TAGS"
        TAG_ARGS=""
        for TAG in "${TAG_ARRAY[@]}"; do
          TAG_ARGS+=" --tag $REGISTRY_URL/$NAME:$TAG"
        done

        echo "🔨 Building Docker image: $NAME"
        docker buildx build \
          --platform "$ARCHITECTURES" \
          $TAG_ARGS \
          --file "$DOCKERFILE" \
          --push \
          .
        echo "🔨 Docker image built and pushed."

        # Verify each tag
        for TAG in "${TAG_ARRAY[@]}"; do
          if ! docker manifest inspect "$REGISTRY_URL/$NAME:$TAG" > /dev/null; then
            echo "❌ Verification failed for $REGISTRY_URL/$NAME:$TAG"
            exit 1
          fi
          echo "✅ Verified image: $REGISTRY_URL/$NAME:$TAG"
        done

        echo "🚀 Successfully built and pushed image: $REGISTRY_URL/$NAME"