name: Build and Push Teamspeak Images on Base Image Update

on:
  push:
    branches:
      - main
  schedule:
    - cron: '30 */6 * * *'  # Every 6 hours

env:
  IMAGE_REGISTRY: gitea.fithwum.tech
  IMAGE_ORG: fithwum
  IMAGE_REPO_TS: teamspeak-server
  IMAGE_REPO_DEBIAN: debian-base
  IMAGE_TAG_DEBIAN: bookworm
  ALPINE_IMAGE: alpine:latest
  CACHE_DIR: .cache

jobs:
  check-base-images-and-build:
    runs-on: docker-build

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

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

      - name: Log in to Gitea Registry
        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login ${{ env.IMAGE_REGISTRY }} -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin

      - name: Get alpine:latest digest
        id: alpine_digest
        run: |
          docker pull docker.io/library/alpine:latest
          DIGEST=$(docker inspect --format='{{index .RepoDigests 0}}' alpine:latest || echo "unknown")
          echo "digest=$DIGEST" >> $GITHUB_OUTPUT

      - name: Get debian-base:bookworm digest
        id: debian_digest
        run: |
          IMAGE="${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_ORG }}/${{ env.IMAGE_REPO_DEBIAN }}:${{ env.IMAGE_TAG_DEBIAN }}"
          docker pull "$IMAGE"
          DIGEST=$(docker inspect --format='{{index .RepoDigests 0}}' "$IMAGE" || echo "unknown")
          echo "digest=$DIGEST" >> $GITHUB_OUTPUT

      - name: Compare digests and update .cache
        id: compare_digests
        run: |
          mkdir -p $CACHE_DIR

          check_digest() {
            local name=$1
            local new_digest=$2
            local file="$CACHE_DIR/$name.digest"

            echo "[INFO] Checking $name..."
            if [[ -f $file ]]; then
              old_digest=$(cat "$file")
            else
              old_digest=""
            fi

            if [[ "$old_digest" == "$new_digest" ]]; then
              echo "$name_changed=false" >> $GITHUB_OUTPUT
              echo "[INFO] $name unchanged."
            else
              echo "$new_digest" > "$file"
              echo "$name_changed=true" >> $GITHUB_OUTPUT
              echo "[INFO] $name changed."
            fi
          }

          check_digest "alpine" "${{ steps.alpine_digest.outputs.digest }}"
          check_digest "debian-base" "${{ steps.debian_digest.outputs.digest }}"

          git config user.name "${{ secrets.GIT_USERNAME }}"
          git config user.email "${{ secrets.GIT_EMAIL }}"
          git add $CACHE_DIR
          git commit -m "Update base image digests" || echo "[INFO] No cache changes to commit"
          git push || true

      - name: Build and Push Alpine Image
        if: steps.compare_digests.outputs.alpine_changed == 'true'
        run: |
          IMAGE="${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_ORG }}/${{ env.IMAGE_REPO_TS }}:alpine"
          echo "[INFO] Building $IMAGE"
          docker buildx build --platform linux/amd64 --push -t "$IMAGE" ./alpine

      - name: Build and Push Debian Image
        if: steps.compare_digests.outputs.debian-base_changed == 'true'
        run: |
          IMAGE="${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_ORG }}/${{ env.IMAGE_REPO_TS }}:debian"
          echo "[INFO] Building $IMAGE"
          docker buildx build --platform linux/amd64 --push -t "$IMAGE" ./debian

      - name: Build and Push Basic Image (depends on debian)
        if: steps.compare_digests.outputs.debian-base_changed == 'true'
        run: |
          IMAGE="${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_ORG }}/${{ env.IMAGE_REPO_TS }}:basic"
          echo "[INFO] Building $IMAGE"
          docker buildx build --platform linux/amd64 --push -t "$IMAGE" ./basic


















# name: Build and Push teamspeak-server Docker Images

# on:
#   push:
#     branches:
#       - main

# jobs:
#   build:
#     runs-on: docker-build

#     steps:
#       - name: Checkout code
#         uses: actions/checkout@v3

#       - name: Set image tags and names
#         id: vars
#         run: |
#           IMAGE_REGISTRY=gitea.fithwum.tech
#           IMAGE_ORG=fithwum
#           IMAGE_REPO=teamspeak-server
          
#           # Set the tag based on the folder name (alpine, basic, debian)
#           IMAGE_TAG_ALPINE=alpine
#           IMAGE_TAG_BASIC=basic
#           IMAGE_TAG_DEBIAN=debian

#           echo "IMAGE_TAG_ALPINE=${IMAGE_TAG_ALPINE}" >> $GITHUB_ENV
#           echo "IMAGE_TAG_BASIC=${IMAGE_TAG_BASIC}" >> $GITHUB_ENV
#           echo "IMAGE_TAG_DEBIAN=${IMAGE_TAG_DEBIAN}" >> $GITHUB_ENV
          
#           # Set image names for each subfolder Dockerfile
#           IMAGE_ALPINE=${IMAGE_REGISTRY}/${IMAGE_ORG}/${IMAGE_REPO}:${IMAGE_TAG_ALPINE}
#           IMAGE_BASIC=${IMAGE_REGISTRY}/${IMAGE_ORG}/${IMAGE_REPO}:${IMAGE_TAG_BASIC}
#           IMAGE_DEBIAN=${IMAGE_REGISTRY}/${IMAGE_ORG}/${IMAGE_REPO}:${IMAGE_TAG_DEBIAN}

#           echo "IMAGE_ALPINE=${IMAGE_ALPINE}" >> $GITHUB_ENV
#           echo "IMAGE_BASIC=${IMAGE_BASIC}" >> $GITHUB_ENV
#           echo "IMAGE_DEBIAN=${IMAGE_DEBIAN}" >> $GITHUB_ENV

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

#       - name: Log in to Gitea Registry
#         run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login gitea.fithwum.tech -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin

#       # Build and Push alpine Docker Image
#       - name: Build and Push alpine Docker Image
#         run: |
#           docker buildx build --platform linux/amd64 --push -t ${{ env.IMAGE_ALPINE }} ./alpine

#       # Build and Push basic Docker Image
#       - name: Build and Push basic Docker Image
#         run: |
#           docker buildx build --platform linux/amd64 --push -t ${{ env.IMAGE_BASIC }} ./basic

#       # Build and Push debian Docker Image
#       - name: Build and Push debian Docker Image
#         run: |
#           docker buildx build --platform linux/amd64 --push -t ${{ env.IMAGE_DEBIAN }} ./debian