name: Build and Publish Container

on:
  push:
    branches:
      - main
    tags:
      - "v*"
  workflow_dispatch: {}

permissions:
  contents: read
  packages: write

concurrency:
  group: container-${{ github.ref }}
  cancel-in-progress: true

jobs:
  publish:
    name: Publish Linux container
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Resolve registry image name
        id: image
        shell: bash
        env:
          SERVER_URL: ${{ github.server_url }}
          REPOSITORY: ${{ github.repository }}
        run: |
          set -euo pipefail
          registry="${SERVER_URL#http://}"
          registry="${registry#https://}"
          registry="${registry%%/*}"
          repository="$(printf '%s' "$REPOSITORY" | tr '[:upper:]' '[:lower:]')"
          echo "registry=$registry" >> "$GITHUB_OUTPUT"
          echo "image=$registry/$repository" >> "$GITHUB_OUTPUT"

      - name: Log in to Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ steps.image.outputs.registry }}
          username: ${{ secrets.REGISTRY_USERNAME || github.actor }}
          password: ${{ secrets.REGISTRY_TOKEN || secrets.GITHUB_TOKEN }}

      - name: Generate image metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ steps.image.outputs.image }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=branch
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=sha,prefix=sha-
          labels: |
            org.opencontainers.image.title=Progression Mods
            org.opencontainers.image.description=Progression RimWorld mod-list service
            org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}

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

      - name: Build and publish
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          provenance: false