name: Docker image build

on:
  push:
    tags:
      - 'v*'
  schedule:
    # Every day at midnight (UTC).
    - cron: '0 0 * * *'
  # Manual trigger through the UI for testing.
  workflow_dispatch:

defaults:
  run:
    shell: bash

env:
  DOCKER_ORG: lightninglabs
  DOCKER_REPO: lightning-terminal
  NIGHTLY_DOCKER_REPO: lightning-terminal-nightly
  NIGHTLY_BRANCH_NAME: master
  NIGHTLY_TAG_NAME: experimental-daily-testing

jobs:
  main:
    runs-on: ubuntu-latest
    steps:
      - name: Set up QEMU
        uses: lightninglabs/gh-actions/setup-qemu-action@2021.01.25.00

      - name: Set up Docker Buildx
        uses: lightninglabs/gh-actions/setup-buildx-action@2021.01.25.00

      - name: Login to DockerHub
        uses: lightninglabs/gh-actions/login-action@2021.01.25.00
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_API_KEY }}

      # Make it possible to use different values for the version (used for git
      # checkout) and the image tag (used for the docker image tag).
      - name: Set env
        run: |
          echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
          echo "IMAGE_TAG=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV

      # The daily/nightly build (or manual trigger) will always use the
      # experimental branch and push to a different docker repo.
      - name: Set daily tag
        if: ${{ github.event.schedule == '0 0 * * *' || github.event_name == 'workflow_dispatch' }}
        run: |
          echo "RELEASE_VERSION=${{env.NIGHTLY_BRANCH_NAME}}" >> $GITHUB_ENV
          echo "DOCKER_REPO=${{env.NIGHTLY_DOCKER_REPO}}" >> $GITHUB_ENV
          echo "IMAGE_TAG=${{env.NIGHTLY_TAG_NAME}}-$(date -u +%Y%m%d)" >> $GITHUB_ENV

      - name: Build and push default image
        id: docker_build
        uses: lightninglabs/gh-actions/build-push-action@2021.01.25.00
        with:
          push: true
          platforms: linux/amd64,linux/arm64
          tags: "${{ env.DOCKER_ORG }}/${{ env.DOCKER_REPO }}:${{ env.IMAGE_TAG }}"
          build-args: checkout=${{ env.RELEASE_VERSION }}
      
      - name: Clear the build cache
        run: docker builder prune -a -f

      - name: Build and push image with /lit path
        id: docker_build2
        uses: lightninglabs/gh-actions/build-push-action@2021.01.25.00
        with:
          push: true
          platforms: linux/amd64,linux/arm64
          tags: "${{ env.DOCKER_ORG }}/${{ env.DOCKER_REPO }}:${{ env.IMAGE_TAG }}-path-prefix"
          build-args: |
            checkout=${{ env.RELEASE_VERSION }}
            public_url=/lit

      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }} ${{ steps.docker_build2.outputs.digest }}