name: Build and Publish Docker Image

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main

jobs:
  build-and-validate:
    name: Build and Validate
    runs-on: ubuntu
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Build Docker Image
        run: |
          docker build -t threejs-test:test .

      - name: Validate Image
        run: |
          docker run --rm -d --name test-container -p 8080:80 threejs-test:test
          sleep 2
          curl -f http://localhost:8080 || exit 1
          docker stop test-container

  publish:
    name: Publish to Registry
    runs-on: ubuntu
    needs: build-and-validate
    if: github.event_name == 'push' || gitea.event_name == 'push'
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Fetch all history for tags

      - name: Login to Registry
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login git.jusemon.com -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin

      - name: Determine Version
        id: version
        run: |
          # Get latest version tag
          LATEST_TAG=$(git describe --tags --match 'v*.*.*' --abbrev=0 2>/dev/null || echo "v0.0.0")
          LATEST_VERSION="${LATEST_TAG#v}"
          
          # Parse version components
          IFS='.' read -r MAJOR MINOR PATCH <<< "$LATEST_VERSION"
          MAJOR=${MAJOR:-0}
          MINOR=${MINOR:-0}
          PATCH=${PATCH:-0}
          
          # Increment patch version for each merge to main, or start at 0.1.0 if no tags exist
          if [[ "$LATEST_TAG" == "v0.0.0" ]]; then
            # First version
            NEW_VERSION="0.1.0"
          else
            # Increment patch version for each merge to main
            PATCH=$((PATCH + 1))
            NEW_VERSION="$MAJOR.$MINOR.$PATCH"
          fi
          
          echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "tag=v$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "Latest tag: $LATEST_TAG"
          echo "New version: $NEW_VERSION"

      - name: Build Docker Image
        run: |
          IMAGE_NAME="git.jusemon.com/jusemon/threejs-test:${{ steps.version.outputs.version }}"
          docker build -t "$IMAGE_NAME" .
          echo "IMAGE_NAME=$IMAGE_NAME" >> $GITHUB_ENV

      - name: Push Docker Image
        run: |
          IMAGE_NAME="git.jusemon.com/jusemon/threejs-test:${{ steps.version.outputs.version }}"
          docker push "$IMAGE_NAME"
          
          # Also tag as 'latest' for main branch
          docker tag "$IMAGE_NAME" "git.jusemon.com/jusemon/threejs-test:latest"
          docker push "git.jusemon.com/jusemon/threejs-test:latest"

      - name: Create Git Tag
        run: |
          git config user.name "forgejo-actions"
          git config user.email "forgejo-actions@forgejo.io"
          TAG="${{ steps.version.outputs.tag }}"
          # Check if tag already exists
          if git rev-parse "$TAG" >/dev/null 2>&1; then
            echo "Tag $TAG already exists, skipping tag creation"
          else
            git tag -a "$TAG" -m "Release ${{ steps.version.outputs.version }}"
            git push origin "$TAG"
          fi