name: Snapshot Docker Image Build

on:
  push:
    branches:
      - master

jobs:
  verify-and-package:
    if: github.repository != 'templates/mono-app-with-db'
    runs-on: java-node-24
    env:
      GRADLE_USER_HOME: /opt/hostedtoolcache/gradle/${{ github.repository }}

    steps:
      - name: 1. Checkout repository
        uses: actions/checkout@v4

      - name: 2. Prepare Gradle cache and Docker access
        run: |
          sudo install -d -m 0755 -o "$(id -u)" -g "$(id -g)" "$GRADLE_USER_HOME"
          sudo chgrp "$(id -g)" /var/run/docker.sock
          sudo chmod g+rw /var/run/docker.sock

      - name: 3. Verify and stage with Gradle
        run: |
          ./gradlew --no-daemon --console=plain check stageFatJar

      - name: 4. Upload test reports
        if: always()
        id: upload-test-reports
        uses: christopherhx/gitea-upload-artifact@v4
        with:
          name: test-reports
          path: |
            build/reports/tests/test/**
            build/test-results/test/**/*.xml
          if-no-files-found: warn
          retention-days: 7

      - name: 5. Output test report artifact URL
        if: always()
        run: |
          echo "Test reports: ${{ steps.upload-test-reports.outputs.artifact-url }}"

      - name: 6. Upload staged fat jar
        uses: christopherhx/gitea-upload-artifact@v4
        with:
          name: application-fat-jar
          path: build/ci/server.jar
          retention-days: 1
          compression-level: 0

  build-and-publish-snapshot:
    if: github.repository != 'templates/mono-app-with-db'
    runs-on: java-node-24
    needs: verify-and-package
    env:
      REGISTRY: git.dslan.at
      REPOSITORY: ${{ github.repository }}

    steps:
      - name: 1. Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: 2. Download staged fat jar
        uses: christopherhx/gitea-download-artifact@v4
        with:
          name: application-fat-jar
          path: ./build/ci

      - name: 3. Prepare Docker access
        run: |
          sudo chgrp "$(id -g)" /var/run/docker.sock
          sudo chmod g+rw /var/run/docker.sock

      - name: 4. Set up Docker Buildx
        uses: docker/setup-buildx-action@v3.11.0
        with:
          driver: docker-container
          driver-opts: network=host

      - name: 5. Read version and set snapshot tag
        id: meta
        run: |
          VERSION_BASE=$(cat VERSION)
          LAST_CHANGED=$(git log -1 --format=%H VERSION)
          COUNT=$(git rev-list ${LAST_CHANGED}..HEAD --count)
          SNAPSHOT_TAG="${VERSION_BASE}-SNAPSHOT-$((COUNT + 1))"
          echo "tag_version=$SNAPSHOT_TAG" >> $GITHUB_OUTPUT

      - name: 6. Log in to the Gitea Container Registry
        uses: docker/login-action@v3.6.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.PR_USER }}
          password: ${{ secrets.PR_PASSWORD }}

      - name: 7. Build and push the Docker image
        uses: docker/build-push-action@v5
        with:
          context: ./build/ci
          file: ./Dockerfile
          push: true
          tags: |
            ${{ env.REGISTRY }}/${{ env.REPOSITORY }}:${{ steps.meta.outputs.tag_version }}
            ${{ env.REGISTRY }}/${{ env.REPOSITORY }}:snapshot-latest
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.REPOSITORY }}:buildcache-snapshot
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.REPOSITORY }}:buildcache-snapshot,mode=max