name: docker

on:
  workflow_dispatch:
  push:
  pull_request:

jobs:
  # Outputs from this job aren't really used, but it's here to verify that
  # the Dockerfile builds correctly on pull requests.
  build:
    runs-on: ubuntu-latest
    permissions:
      actions: write
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0

      - name: Install Docker Buildx
        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # 3.0.0

      - name: Build image
        run: >
          docker buildx build .
          --file DiscordChatExporter.Cli.dockerfile
          --platform linux/amd64,linux/arm64
          --output type=tar,dest=DiscordChatExporter.Cli.Docker.tar

      - name: Upload artifacts
        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # 3.1.3
        with:
          name: DiscordChatExporter.Cli.Docker
          path: DiscordChatExporter.Cli.Docker.tar
          if-no-files-found: error

  deploy:
    # Deploy to DockerHub only on tag push or master branch push
    if: ${{ github.ref_type == 'tag' || github.ref_type == 'branch' && github.ref_name == 'master' }}
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0

      - name: Install Docker Buildx
        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # 3.0.0

      - name: Login to DockerHub
        run: >
          echo ${{ secrets.DOCKER_TOKEN }} |
          docker login --username tyrrrz --password-stdin

      - name: Build & push image
        run: >
          docker buildx build .
          --file DiscordChatExporter.Cli.dockerfile
          --platform linux/amd64,linux/arm64
          --push
          --tag tyrrrz/discordchatexporter:latest
          ${{ github.ref_type == 'tag' && '--tag tyrrrz/discordchatexporter:$GITHUB_REF_NAME' || '' }}
          ${{ github.ref_type == 'tag' && '--tag tyrrrz/discordchatexporter:stable' || '' }}