name: Docker Build and Release

on:
  push:
    branches:
      - main

jobs:
  build-and-push-on-docker-hub:
    runs-on: ubuntu-latest

    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
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: ${{ secrets.DOCKER_USERNAME }}/github-ntfy:latest

  release-on-github:
    runs-on: ubuntu-latest

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

      - name: Get the latest tag
        id: get_latest_tag
        run: echo "latest_tag=$(git describe --tags `git rev-list --tags --max-count=1`)" >> $GITHUB_ENV

      - name: Increment version
        id: increment_version
        run: |
          latest_tag=${{ env.latest_tag }}
          if [ -z "$latest_tag" ]; then
            new_version="v1.5.2"
          else
            IFS='.' read -r -a version_parts <<< "${latest_tag#v}"
            new_version="v${version_parts[0]}.$((version_parts[1] + 1)).0"
          fi
          echo "new_version=$new_version" >> $GITHUB_ENV

      - name: Read changelog
        id: read_changelog
        run: echo "changelog=$(base64 -w 0 CHANGELOG.md)" >> $GITHUB_ENV

      - name: Decode changelog
        id: decode_changelog
        run: echo "${{ env.changelog }}" | base64 -d > decoded_changelog.txt

      - name: Create Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.TOKEN }}
        with:
          tag_name: ${{ env.new_version }}
          release_name: Release ${{ env.new_version }}
          body: ${{ steps.decode_changelog.outputs.changelog }}
          draft: false
          prerelease: false