name: RELEASE - Build and Publish Maven Artifact and Docker Image

on:
  workflow_dispatch:
  push:
    branches:
      - main

env:
  NEXUS_USERNAME: 'edward'
  NEXUS_PASSWORD: ${{ secrets.NEXUS_PASSWORD }}
  MAVEN_PUBLIC_REPOSITORY_URL: ${{ secrets.MAVEN_PUBLIC_REPOSITORY_URL }}
  SNAPSHOT_DEPLOYMENT_REPOSITORY_URL: ${{ secrets.SNAPSHOT_DEPLOYMENT_REPOSITORY_URL }}
  RELEASE_DEPLOYMENT_REPOSITORY_URL: ${{ secrets.RELEASE_DEPLOYMENT_REPOSITORY_URL }}
  REGISTRY_IMAGE: edeedeeed/ec-config-server

jobs:
  build-java:
    runs-on: ubuntu-latest
    permissions:
      id-token: write
      contents: write
      packages: write
    name: Build Java Package and Publish
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-java@v4.3.0
        if: ${{ hashFiles('**/pom.xml') }}
        with:
          java-version: 17
          distribution: zulu
          cache: 'maven'
      - name: maven-settings-xml-action
        uses: whelk-io/maven-settings-xml-action@v22
        with:
          profiles: >
            [{
              "id": "homelab",
              "properties": {
                "altSnapshotDeploymentRepository": "nexus-snapshot::${env.SNAPSHOT_DEPLOYMENT_REPOSITORY_URL}",
                "altReleaseDeploymentRepository": "nexus-release::${env.RELEASE_DEPLOYMENT_REPOSITORY_URL}"
              }
            }]
          repositories: >
            [{
              "id": "maven-public",
              "url": "${env.MAVEN_PUBLIC_REPOSITORY_URL}",
              "snapshots": {
                "enabled": "true"
              }
            }]
          servers: >
            [{
              "id": "nexus-snapshot",
              "username": "${env.NEXUS_USERNAME}",
              "password": "${env.NEXUS_PASSWORD}"
            },
            {
              "id": "nexus-release",
              "username": "${env.NEXUS_USERNAME}",
              "password": "${env.NEXUS_PASSWORD}"
            }]
      - name: Config Git
        run: |
          git config --global user.email "edward@cheng.sydney"
          git config --global user.name "3dwardch3ng"
          git config --global core.autocrlf input
      - name: Start release
        run: |
          mvn gitflow:release-start -B -DpushRemote=true -DallowSnapshots=true \
            -P homelab
      - name: Maven Publish
        run: |
          mvn -B deploy -P homelab
      - name: Finish release
        env:
          GITHUB_ACTOR: 3dwardch3ng
          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
        run: |
          mvn gitflow:release-finish -B -DpushRemote=true -DallowSnapshots=true -P homelab
  build-docker:
    runs-on: ubuntu-latest
    needs:
      - build-java
    strategy:
      fail-fast: false
      matrix:
        platform:
          - linux/amd64
          - linux/arm64
    steps:
      - uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 1
      - uses: actions/setup-java@v4.3.0
        if: ${{ hashFiles('**/pom.xml') }}
        with:
          java-version: 17
          distribution: zulu
          cache: 'maven'
      - name: maven-settings-xml-action
        uses: whelk-io/maven-settings-xml-action@v22
        with:
          profiles: >
            [{
              "id": "homelab",
              "properties": {
                "altSnapshotDeploymentRepository": "nexus-snapshot::${env.SNAPSHOT_DEPLOYMENT_REPOSITORY_URL}",
                "altReleaseDeploymentRepository": "nexus-release::${env.RELEASE_DEPLOYMENT_REPOSITORY_URL}"
              }
            }]
          repositories: >
            [{
              "id": "maven-public",
              "url": "${env.MAVEN_PUBLIC_REPOSITORY_URL}",
              "snapshots": {
                "enabled": "true"
              }
            }]
          servers: >
            [{
              "id": "nexus-snapshot",
              "username": "${env.NEXUS_USERNAME}",
              "password": "${env.NEXUS_PASSWORD}"
            },
            {
              "id": "nexus-release",
              "username": "${env.NEXUS_USERNAME}",
              "password": "${env.NEXUS_PASSWORD}"
            }]
      - name: Maven Package
        run: |
          mvn -B package -P homelab
      - name: Prepare
        run: |
          platform=${{ matrix.platform }}
          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_IMAGE }}
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"
      - name: Upload digest
        uses: actions/upload-artifact@v4
        with:
          name: digests-${{ env.PLATFORM_PAIR }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1
  merge-docker:
    runs-on: ubuntu-latest
    needs:
      - build-docker
    steps:
      - uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 1
      - uses: actions/setup-java@v4.3.0
        if: ${{ hashFiles('**/pom.xml') }}
        with:
          java-version: 17
          distribution: zulu
          cache: 'maven'
      - name: maven-settings-xml-action
        uses: whelk-io/maven-settings-xml-action@v22
        with:
          profiles: >
            [{
              "id": "homelab",
              "properties": {
                "altSnapshotDeploymentRepository": "nexus-snapshot::${env.SNAPSHOT_DEPLOYMENT_REPOSITORY_URL}",
                "altReleaseDeploymentRepository": "nexus-release::${env.RELEASE_DEPLOYMENT_REPOSITORY_URL}"
              }
            }]
          repositories: >
            [{
              "id": "maven-public",
              "url": "${env.MAVEN_PUBLIC_REPOSITORY_URL}",
              "snapshots": {
                "enabled": "true"
              }
            }]
          servers: >
            [{
              "id": "nexus-snapshot",
              "username": "${env.NEXUS_USERNAME}",
              "password": "${env.NEXUS_PASSWORD}"
            },
            {
              "id": "nexus-release",
              "username": "${env.NEXUS_USERNAME}",
              "password": "${env.NEXUS_PASSWORD}"
            }]
      - name: Extract Maven project version
        id: project-version
        run: |
          VERSION=$( mvn help:evaluate -Dexpression=project.version -q -DforceStdout -P homelab)
          echo "version=$VERSION" >> $GITHUB_OUTPUT
      - name: Show extracted Maven project version
        run: echo ${{ steps.project-version.outputs.version }}
      - name: Download digests
        uses: actions/download-artifact@v4
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_IMAGE }}
          # generate Docker tags based on the following events/attributes
          tags: |
            type=ref,event=branch
            type=sha
            type=sha,prefix={{branch}}-
            type=raw,value={{branch}}-{{date 'YYYYMMDD'}}
            type=raw,value={{branch}}-${{ steps.project-version.outputs.version }}
            type=raw,value=${{ steps.project-version.outputs.version }}
            type=raw,value=latest
      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Create manifest list and push
        working-directory: /tmp/digests
        run: |
          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
      - name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}