# === Workflow Doc =========================================================
# Name: Docker build
# Purpose: Build & push a Docker image
# Requires:
#  -
# ==========================================================================

name: Build external repo image

on:
  push:
    branches:
      - 'main'
    tags:
      - 'v*'
    pull_request:
      branches:
        - 'main'

env:
  REGISTRY_HOST: {{ secrets.REGISTRY_HOST }}
  REGISTRY_USERNAME: {{ secrets.REGISTRY_USERNAME }}
  REGISTRY_PASSWORD: {{ secrets.REGISTRY_PASSWORD }}
  IMAGE_NAME: "wavyzz/sample-image"
  CONTEXT_PATH: "."
  DOCKERFILE_PATH: "./Dockerfile"

jobs:
  build-and-push:
    name: Build and Push Docker Image
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v5

      - name: Define branch helpers
        id: branch
        run: |
          DEFAULT="${{ gitea.event.repository.default_branch }}"
          CURRENT="${{ gitea.ref_name }}"
          if [ "$DEFAULT" = "$CURRENT" ]; then
            echo "is_default_branch=true" >> $GITEA_OUTPUT
          else
            echo "is_default_branch=false" >> $GITEA_OUTPUT
          fi

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_HOST }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=ref,event=tag
            type=sha
            type=raw,value=latest,enable=${{ steps.branch.outputs.is_default_branch }}
          labels: |
            org.opencontainers.image.source=${{ gitea.event.repository.html_url }}
            org.opencontainers.image.url=${{ gitea.event.repository.html_url }}
            org.opencontainers.image.version=${{ gitea.event.repository.default_branch }}

      - name: Set up QEMU  # for multi-platform builds
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx  # for advanced builds
        uses: docker/setup-buildx-action@v3

      - name: Log in to registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_HOST }}
          username: ${{ env.REGISTRY_USERNAME }}
          password: ${{ env.REGISTRY_PASSWORD }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: ${{ env.CONTEXT_PATH }}
          file: ${{ env.DOCKERFILE_PATH }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Image details
        run: |
          echo "Image pushed: ${{ env.REGISTRY_HOST }}/${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.tags }}"
          echo "Labels: ${{ steps.meta.outputs.labels }}"
          echo "Tags: ${{ steps.meta.outputs.tags }}"
          echo "Digest: ${{ steps.meta.outputs.digest }}"