name: Build and Push Docker Images

on:
  push:
    branches:
      - "main"
  schedule:
    - cron: "0 0 * * *"
  workflow_dispatch:

permissions:
  contents: write

jobs:
  build-push:
    name: Build and Push ${{ matrix.release_type }} Docker Images
    runs-on: ubuntu-latest
    strategy:
      matrix:
        release_type: ["latest", "pre-release"]
    steps:
      - name: Checkout branch
        uses: actions/checkout@v3
        with:
          ref: ${{ github.head_ref }}

      - name: Check latest Pocketbase Version
        run: |
          if [ "${{ matrix.release_type }}" = "latest" ]; then
            curl -s https://api.github.com/repos/pocketbase/pocketbase/releases | jq -r '.[] | select(.prerelease == false and .draft == false) | .tag_name' | head -n 1 | sed 's/^v//' > latest_version
          else
            curl -s https://api.github.com/repos/pocketbase/pocketbase/releases | jq -r '.[] | select(.prerelease == true and .draft == false) | .tag_name' | head -n 1 | sed 's/^v//' > latest_version
          fi
          echo "LATEST_VERSION=$(cat latest_version)" >> $GITHUB_ENV
        id: latest_version

      - name: Print Pocketbase Version
        run: |
          cat latest_version
          echo "The current ${{ matrix.release_type }} pocketbase version is ${{ env.LATEST_VERSION }}"
        id: print_version

      - name: Check latest ${{ matrix.release_type }} Docker Image Version
        run: |
          echo "LATEST_DOCKER_VERSION=default_version" >> $GITHUB_ENV
          docker pull lukehagar/pocketbase:${{ matrix.release_type }}
          docker inspect lukehagar/pocketbase:${{ matrix.release_type }} --format='{{index .Config.Labels "org.opencontainers.image.version"}}' > latest_docker_version
          echo "LATEST_DOCKER_VERSION=$(cat latest_docker_version)" >> $GITHUB_ENV
        id: latest_docker_version
        continue-on-error: true

      - name: Print latest ${{ matrix.release_type }} Docker Image Version
        run: |
          echo "The current ${{ matrix.release_type }} docker version is ${{ env.LATEST_DOCKER_VERSION }}"
        id: print_docker_version

      - name: Check if latest version is different
        id: check_version
        run: |
          if [ "${{env.LATEST_VERSION}}" != "${{env.LATEST_DOCKER_VERSION}}" ]; then
              echo "Versions are different"
              echo "BUILD=true" >> $GITHUB_OUTPUT
          else
              echo "Versions are the same"
              echo "BUILD=false" >> $GITHUB_OUTPUT
          fi

      - name: Set up QEMU
        if: steps.check_version.outputs.build == 'true'
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        if: steps.check_version.outputs.build == 'true'
        uses: docker/setup-buildx-action@v2

      - name: Login to Docker Hub
        if: steps.check_version.outputs.build == 'true'
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        if: steps.check_version.outputs.build == 'true'
        uses: docker/build-push-action@v5
        with:
          push: true
          tags: lukehagar/pocketbase:${{ matrix.release_type }}
          build-args: POCKETBASE_VERSION=${{ env.LATEST_VERSION }}

      - name: Update Changelog
        run: |
          curl -s https://raw.githubusercontent.com/pocketbase/pocketbase/master/CHANGELOG.md > CHANGELOG.md
      
      - name: Commit and push
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: Update changelog for ${{ env.LATEST_VERSION }}