name: Build Image

on: [push, pull_request, workflow_dispatch]

permissions:
  contents: read
  packages: write

env:
  ENDPOINT: "jumoog/intro-skipper"
  BRANCH: "docker-mod"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2.3.3

      - name: Build image
        run: |
          docker build --no-cache -t ${{ github.sha }} .

      - name: Tag image
        if: ${{ github.ref == format('refs/heads/{0}', env.BRANCH) && env.ENDPOINT != 'user/endpoint' }}
        run: |
          docker tag ${{ github.sha }} ${ENDPOINT}
          docker tag ${{ github.sha }} ${ENDPOINT}:${{ github.sha }}
          docker tag ${{ github.sha }} ghcr.io/${ENDPOINT}
          docker tag ${{ github.sha }} ghcr.io/${ENDPOINT}:${{ github.sha }}

      - name: Credential check
        if: ${{ github.ref == format('refs/heads/{0}', env.BRANCH) && env.ENDPOINT != 'user/endpoint' }}
        run: |
          echo "CR_USER=${{ secrets.CR_USER }}" >> $GITHUB_ENV
          echo "CR_PAT=${{ secrets.CR_PAT }}" >> $GITHUB_ENV
          echo "DOCKERUSER=${{ secrets.DOCKERUSER }}" >> $GITHUB_ENV
          echo "DOCKERPASS=${{ secrets.DOCKERPASS }}" >> $GITHUB_ENV
          if [[ "${{ secrets.CR_USER }}" == "" && "${{ secrets.CR_PAT }}" == "" && "${{ secrets.DOCKERUSER }}" == "" && "${{ secrets.DOCKERPASS }}" == "" ]]; then
            echo "::error::Push credential secrets missing."
            echo "::error::You must set either CR_USER & CR_PAT or DOCKERUSER & DOCKERPASS as secrets in your repo settings."
            echo "::error::See https://github.com/linuxserver/docker-mods/blob/master/README.md for more information/instructions."
            exit 1
          fi

      - name: Login to GitHub Container Registry
        if: ${{ github.ref == format('refs/heads/{0}', env.BRANCH) && env.CR_USER && env.CR_PAT && env.ENDPOINT != 'user/endpoint' }}
        run: |
          echo "${{ secrets.CR_PAT }}" | docker login ghcr.io -u ${{ secrets.CR_USER }} --password-stdin

      - name: Push tags to GitHub Container Registry
        if: ${{ github.ref == format('refs/heads/{0}', env.BRANCH) && env.CR_USER && env.CR_PAT && env.ENDPOINT != 'user/endpoint' }}
        run: |
          docker push ghcr.io/${ENDPOINT}:${{ github.sha }}
          docker push ghcr.io/${ENDPOINT}

      - name: Login to DockerHub
        if: ${{ github.ref == format('refs/heads/{0}', env.BRANCH) && env.DOCKERUSER && env.DOCKERPASS && env.ENDPOINT != 'user/endpoint' }}
        run: |
          echo ${{ secrets.DOCKERPASS }} | docker login -u ${{ secrets.DOCKERUSER }} --password-stdin

      - name: Push tags to DockerHub
        if: ${{ github.ref == format('refs/heads/{0}', env.BRANCH) && env.DOCKERUSER && env.DOCKERPASS && env.ENDPOINT != 'user/endpoint' }}
        run: |
          docker push ${ENDPOINT}:${{ github.sha }}
          docker push ${ENDPOINT}