# SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
#
# SPDX-License-Identifier: AGPL-3.0-only

name: Backend / Docker

on:
  push:
    branches: [ develop ]
  pull_request_target:
    branches: [ develop ]
  pull_request:
    branches: [ develop ]

permissions:
  contents: read
  packages: write

concurrency:
  group: ${{ github.workflow }}-${{ !!github.event.pull_request && github.event.pull_request.head.label || github.ref }}-${{ github.event_name }}-${{ github.job }}
  cancel-in-progress: true

jobs:
  changes:
    name: Check for backend changes
    runs-on: ubuntu-latest
    permissions:
      pull-requests: read
    outputs:
      changed: ${{ github.event_name == 'push' || steps.changed.outputs.files }}
    steps:
      - uses: actions/checkout@v3
        if: github.event_name != 'push'

      - name: Check for backend file changes
        if: github.event_name != 'push'
        uses: dorny/paths-filter@v2
        id: changed
        with:
          filters: |
            files:
              - 'commons/**'
              - 'backend/**'
              - '.github/**'
              - '.yarn/**'

  build-dev:
    if: "(github.event_name == 'pull_request_target') == github.event.pull_request.head.repo.fork"
    needs: changes
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        if: needs.changes.outputs.changed == 'true'

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
        if: needs.changes.outputs.changed == 'true'

      - name: Login to GHCR
        if: needs.changes.outputs.changed == 'true'
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build dev image
        if: needs.changes.outputs.changed == 'true'
        uses: docker/build-push-action@v3
        with:
          push: true
          file: backend/docker/Dockerfile
          tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}-ci:${{ github.sha }}
          target: development
          cache-from: type=gha
          cache-to: type=gha,mode=max
          context: .

  sqlite-test:
    runs-on: ubuntu-latest
    if: needs.changes.outputs.changed == 'true' && (github.event_name == 'pull_request_target') == github.event.pull_request.head.repo.fork
    needs: [ build-dev, changes ]
    container:
      image: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}-ci:${{ github.sha }}
    steps:
      - run: cd /usr/src/app/backend && yarn run test

  sqlite-e2e:
    runs-on: ubuntu-latest
    if: needs.changes.outputs.changed == 'true' && (github.event_name == 'pull_request_target') == github.event.pull_request.head.repo.fork
    needs: [ build-dev, changes ]
    container:
      image: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}-ci:${{ github.sha }}
    steps:
      - run: cd /usr/src/app/backend && yarn run test:e2e

  build-prod:
    runs-on: ubuntu-latest
    if: (github.event_name == 'pull_request_target') == github.event.pull_request.head.repo.fork
    needs: [ sqlite-test, sqlite-e2e, changes ]
    steps:
      - uses: actions/checkout@v3
        if: needs.changes.outputs.changed == 'true'

      - name: Generate Docker metadata
        if: needs.changes.outputs.changed == 'true'
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}
          tags: |
            type=ref,event=branch
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2
        if: needs.changes.outputs.changed == 'true'

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
        if: needs.changes.outputs.changed == 'true'

      - name: Login to GHCR
        if: github.event_name == 'push' && needs.changes.outputs.changed == 'true'
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        if: needs.changes.outputs.changed == 'true'
        uses: docker/build-push-action@v3
        with:
          push: ${{ github.event_name == 'push' }}
          file: backend/docker/Dockerfile
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          context: .