name: os

on:
  schedule:
    - cron: '0 5 8,18,28 * *'
  push:
    paths:
      - 'Dockerfile'
      - 'etc/**'
      - 'usr/**'
      - 'repo/**'
      - '.github/workflows/os.yml'
  workflow_dispatch: # Gør det muligt at starte den manuelt til test

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write

    steps:
      - name: Maximize build space
        uses: AdityaGarg8/remove-unwanted-software@v1
        with:
          remove-dotnet: 'true'
          remove-android: 'true'
          remove-haskell: 'true'

      - name: Get current date
        id: date
        run: echo "date=$(date +'%Y%m%d')" >> $GITHUB_OUTPUT

      - name: Checkout repository
        uses: actions/checkout@v4 # Opdateret til v4

      - name: Install cosign
        if: github.event_name != 'pull_request'
        uses: sigstore/cosign-installer@v3.3.0 # Opdateret version
        with:
          cosign-release: 'v2.2.2'

      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v3 # Opdateret til v3
        with:
          # Vigtigt: Aktiverer experimental support i BuildKit
          buildkitd-flags: --allow-insecure-entitlement security.insecure

      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3 # Opdateret til v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          # Her tvinger vi tags til at være lowercase og definerer dine versioner
          tags: |
            type=raw,value=latest
            type=raw,value=10
            type=raw,value=10.${{ steps.date.outputs.date }}

      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          # Nu bruger vi udelukkende tags fra meta-trinnet, som er lowercase-sikre
          tags: ${{ steps.meta.outputs.tags }}
          squash: true

      - name: Sign the published Docker image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          TAGS: ${{ steps.meta.outputs.tags }}
          DIGEST: ${{ steps.build-and-push.outputs.digest }}
        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}