name: Build Docker Images

on:
  push:
    branches:
      - "main"
    tags:
      - "*"
  pull_request:
    branches:
      - "main"

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
  FRONTEND_IMAGE_NAME: ${{ github.repository }}-frontend
  BACKEND_IMAGE_NAME: ${{ github.repository }}-backend

permissions:
  contents: read
  packages: write

jobs:
  build_integrated_image:
    name: Build integrated image
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Log into registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=ref,event=tag
            type=sha,format=short,prefix=

      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: docker/Dockerfile
          push: ${{ github.ref_type == 'tag' || (github.ref == 'refs/heads/main' && github.event_name == 'push') }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64,linux/arm64

  build_frontend_image:
    name: Build frontend image
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Log into registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.FRONTEND_IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=ref,event=tag
            type=sha,format=short,prefix=

      - name: Generate frontend build date
        id: frontend_build_meta
        run: echo "build_date=$(date -u +'%Y/%m/%d UTC')" >> "$GITHUB_OUTPUT"

      - name: Build Frontend Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: docker/Dockerfile.frontend
          push: ${{ github.ref_type == 'tag' || (github.ref == 'refs/heads/main' && github.event_name == 'push') }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64,linux/arm64
          build-args: |
            VERSION=${{ github.ref_type == 'tag' && github.ref_name || '' }}
            BUILD_DATE=${{ steps.frontend_build_meta.outputs.build_date }}

  build_backend_image:
    name: Build backend image
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Log into registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.BACKEND_IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=ref,event=tag
            type=sha,format=short,prefix=

      - name: Build Backend Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: docker/Dockerfile.backend
          push: ${{ github.ref_type == 'tag' || (github.ref == 'refs/heads/main' && github.event_name == 'push') }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64,linux/arm64