name: Build & Push Docker Image

on:
  push:
    tags:
      - "v*"            # triggers on v0.1.0, v1.0.0, etc.
  workflow_dispatch:    # allow manual trigger from Gitea UI

env:
  REGISTRY: git.azuze.fr
  IMAGE: git.azuze.fr/kawa/cubeadmin

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Extract version tag
        id: meta
        run: |
          TAG="${GITHUB_REF_NAME}"          # e.g. v0.1.0
          VERSION="${TAG#v}"                # strip leading v → 0.1.0
          echo "tag=${TAG}"       >> $GITHUB_OUTPUT
          echo "version=${VERSION}" >> $GITHUB_OUTPUT

      - name: Log in to Gitea container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_TOKEN }}

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

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: |
            ${{ env.IMAGE }}:latest
            ${{ env.IMAGE }}:${{ steps.meta.outputs.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max