name: Build and Push Image

on:
  push:
    branches:
      - main
  workflow_dispatch:

env:
  REGISTRY_HOST: registry.campbellwireless.net
  IMAGE_NAME: ${{ github.repository }}

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

    steps:
      - name: Checkout
        env:
          REPO_URL: ${{ github.server_url }}/${{ github.repository }}.git
        run: |
          set -eux
          git init .
          git remote add origin "$REPO_URL"
          auth="$(printf '%s' '${{ github.actor }}:${{ secrets.GITHUB_TOKEN }}' | base64 | tr -d '\n')"
          git config --local "http.${{ github.server_url }}/.extraheader" "AUTHORIZATION: basic $auth"
          git fetch --prune --no-recurse-submodules origin +refs/heads/*:refs/remotes/origin/* +refs/tags/*:refs/tags/*
          git checkout --detach "${{ github.sha }}"

      - name: Compute image tags
        id: image
        run: |
          echo "sha_short=$(echo '${{ github.sha }}' | cut -c1-12)" >> "$GITHUB_OUTPUT"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Setup Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to Gitea registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_HOST }}
          username: ${{ secrets.REGISTRY_USERNAME }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Build and push image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            ${{ env.REGISTRY_HOST }}/${{ env.IMAGE_NAME }}:latest
            ${{ env.REGISTRY_HOST }}/${{ env.IMAGE_NAME }}:${{ steps.image.outputs.sha_short }}
          labels: |
            org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
            org.opencontainers.image.revision=${{ github.sha }}