# Branch push (dev):    builds and pushes :dev + :<sha>
# Branch push (main):   builds and pushes :latest + :<sha>
# Tag push (v1.2.0):    builds and pushes :latest + :<sha> + :v1.2.0
#
# To cut a versioned release:
#   git tag v1.2.0 && git push origin v1.2.0
#
# Required secrets (repo → Settings → Secrets → Actions):
#   REGISTRY_USER   — your Forgejo username
#   REGISTRY_TOKEN  — Forgejo PAT with write:packages scope
name: Build & push image

on:
  push:
    branches: [main, dev]
    tags: ["v*"]
    paths:
      - "src/**"
      - "frontend/**"
      - "Dockerfile"
      - "pyproject.toml"
      - "alembic/**"
      - "alembic.ini"
      - ".forgejo/workflows/build.yml"

env:
  REGISTRY: git.fabledsword.com
  IMAGE: git.fabledsword.com/bvandeusen/fabledassistant

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

      - name: Generate image tags
        id: tags
        run: |
          TAGS="${{ env.IMAGE }}:${{ github.sha }}"
          if [[ "${{ github.ref }}" == "refs/heads/main" ]]; then
            TAGS="$TAGS,${{ env.IMAGE }}:latest"
          elif [[ "${{ github.ref }}" == "refs/heads/dev" ]]; then
            TAGS="$TAGS,${{ env.IMAGE }}:dev"
          elif [[ "${{ github.ref }}" == refs/tags/* ]]; then
            TAGS="$TAGS,${{ env.IMAGE }}:latest,${{ env.IMAGE }}:${{ github.ref_name }}"
          fi
          echo "value=$TAGS" >> $GITHUB_OUTPUT

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

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

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