name: build-image

on:
  push:
    branches: [ main ]
  workflow_dispatch:

jobs:
  docker:
    runs-on: [docker, linux, x86_64]

    # Kør i container med docker-cli (runneren monterer docker.sock automatisk)
    container:
      image: docker:27-cli

    steps:
      - name: Install git + certs
        run: apk add --no-cache git ca-certificates

      - name: Sæt BASE_URL (offentlig adresse)
        run: echo "BASE_URL=https://git.ckvist.dk" >> $GITHUB_ENV

      # PUBLIC repo (ingen token nødvendig)
      - name: Checkout (public)
        if: ${{ !secrets.CI_CLONE_TOKEN }}
        run: |
          git clone "${BASE_URL}/${GITHUB_REPOSITORY}.git" .
          git rev-parse --short HEAD

      # PRIVATE repo (brug PAT/token i secret CI_CLONE_TOKEN)
      - name: Checkout (private)
        if: ${{ secrets.CI_CLONE_TOKEN }}
        run: |
          git clone "https://${{ secrets.CI_CLONE_TOKEN }}@${BASE_URL#https://}/${GITHUB_REPOSITORY}.git" .
          git rev-parse --short HEAD

      - name: Docker info
        run: docker version

      - name: Build image (amd64)
        run: |
          docker build -t jottacloud:latest .

      - name: Forbered tags til Gitea Registry
        id: meta
        run: |
          # Registry host (krævet som secret)
          REG="${{ secrets.REGISTRY }}"
          if [ -z "$REG" ]; then
            echo "Missing secret REGISTRY (fx git.ckvist.dk)"; exit 1
          fi

          # Billednavn: brug secret IMAGE_NAME hvis sat, ellers owner/repo
          if [ -n "${{ secrets.IMAGE_NAME }}" ]; then
            IMG="${{ secrets.IMAGE_NAME }}"
          else
            IMG="$GITHUB_REPOSITORY"
          fi

          # Normalisér til lowercase (docker kræver lowercase repo-navne)
          IMG_LC="$(printf '%s' "$IMG" | tr '[:upper:]' '[:lower:]')"

          TAG_SHORT="$(git rev-parse --short HEAD)"

          echo "REG=$REG"           >> $GITHUB_OUTPUT
          echo "IMG=$IMG_LC"        >> $GITHUB_OUTPUT
          echo "TAG_SHORT=$TAG_SHORT" >> $GITHUB_OUTPUT
          echo "FULL_LATEST=$REG/$IMG_LC:latest"     >> $GITHUB_OUTPUT
          echo "FULL_SHA=$REG/$IMG_LC:$TAG_SHORT"    >> $GITHUB_OUTPUT

      - name: Login & push til Gitea Registry
        if: ${{ secrets.REGISTRY && secrets.REGISTRY_USER && secrets.REGISTRY_PASSWORD }}
        run: |
          docker login "${{ steps.meta.outputs.REG }}" \
            -u "${{ secrets.REGISTRY_USER }}" \
            -p "${{ secrets.REGISTRY_PASSWORD }}"

          docker tag jottacloud:latest "${{ steps.meta.outputs.FULL_LATEST }}"
          docker tag jottacloud:latest "${{ steps.meta.outputs.FULL_SHA }}"

          docker push "${{ steps.meta.outputs.FULL_LATEST }}"
          docker push "${{ steps.meta.outputs.FULL_SHA }}"

      - name: Vis push-resultat
        if: ${{ success() && secrets.REGISTRY }}
        run: |
          echo "Pushed:"
          echo "  ${{ steps.meta.outputs.FULL_LATEST }}"
          echo "  ${{ steps.meta.outputs.FULL_SHA }}"
          echo
          echo "Tjek i Gitea GUI: Repository → Packages → Container Registry"