name: Docker Build & Push

on:
  push:
    branches: [ main ]
    tags:
      - 'v*.*.*'
  pull_request:
    branches: [ main ]
  workflow_dispatch:

env:
  REGISTRY: docker.io
  IMAGE_NAME_MCP: sanjibdevnath/mcp-excalidraw-local
  IMAGE_NAME_CANVAS: sanjibdevnath/mcp-excalidraw-local-canvas

jobs:
  build-and-push-mcp:
    name: Build and Push MCP Server Image
    runs-on: ubuntu-latest
    permissions:
      contents: read

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

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

      - name: Log in to Docker Hub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata for MCP Server
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_MCP }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha,prefix=sha-
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push MCP Server image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: ${{ github.event_name == 'pull_request' && 'linux/amd64' || 'linux/amd64,linux/arm64' }}

  build-and-push-canvas:
    name: Build and Push Canvas Server Image
    runs-on: ubuntu-latest
    permissions:
      contents: read

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

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

      - name: Log in to Docker Hub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata for Canvas Server
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_CANVAS }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha,prefix=sha-
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push Canvas Server image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile.canvas
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: ${{ github.event_name == 'pull_request' && 'linux/amd64' || 'linux/amd64,linux/arm64' }}

  test-docker-images:
    name: Test Docker Images
    needs: [build-and-push-mcp, build-and-push-canvas]
    if: github.event_name != 'pull_request'
    runs-on: ubuntu-latest

    steps:
      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Test Canvas Server image
        run: |
          docker pull ${{ env.IMAGE_NAME_CANVAS }}:latest
          docker run -d -p 3000:3000 --name test-canvas ${{ env.IMAGE_NAME_CANVAS }}:latest
          sleep 10
          curl -f http://localhost:3000/health || exit 1
          docker logs test-canvas
          docker stop test-canvas

      - name: Test MCP Server image
        run: |
          docker pull ${{ env.IMAGE_NAME_MCP }}:latest
          echo "MCP Server image pulled successfully"

  docker-status:
    runs-on: ubuntu-latest
    continue-on-error: false
    name: Docker Build Status Check
    needs: [build-and-push-mcp, build-and-push-canvas]
    if: always()
    permissions:
      statuses: write
    steps:
      - name: Failed
        id: failed
        if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
        run: |
          curl -X POST -H "Content-Type: application/json" -H "Authorization: token ${{ github.token }}" \
          -d '{ "state" : "failure" , "context" : "github/docker-build-check" , "description" : "Docker build failed", "target_url" : "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}" }' \
          https://api.github.com/repos/${{ github.repository }}/statuses/${{ github.sha }}
          exit 1
      - name: Success
        if: steps.failed.conclusion == 'skipped'
        run: |
          curl -X POST -H "Content-Type: application/json" -H "Authorization: token ${{ github.token }}" \
          -d '{ "state" : "success" , "context" : "github/docker-build-check" , "description" : "Docker build passed", "target_url" : "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}" }' \
          https://api.github.com/repos/${{ github.repository }}/statuses/${{ github.sha }}