name: CI

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]
  workflow_dispatch:
    inputs:
      backend_image: 
        description: 'Backend image to use in E2E tests (optional, default: ghcr.io/morbalint/kemkas-backend:b8565f8e)'
        required: false

jobs:
  unit-test-and-lint:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v6
    - name: Setup Node.js 24.x
      uses: actions/setup-node@v4
      with:
        node-version: 24.x
    - name: Cache NPM packages
      uses: actions/cache@v4
      with:
        key: npm-${{ hashFiles('./frontend/yarn.lock') }}
        path: |
          ./frontend/node_modules
        restore-keys: |
          npm-${{ hashFiles('./frontend/yarn.lock') }}  
          npm-
    - name: Yarn Install
      run: |
        cd ./frontend
        yarn install --frozen-lockfile
    - name: Yarn Test
      run: |
        cd ./frontend
        yarn run test
    - name: Yarn Lint
      run: |
        cd ./frontend
        yarn run lint

  build-fe:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write
    outputs:
      image_sha_tag: ${{ steps.image-tag.outputs.image_sha_tag }}
    steps:
    - uses: actions/checkout@v6
    - uses: docker/setup-buildx-action@v4
    - name: Log in to GitHub Container Registry
      uses: docker/login-action@v4
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    - name: Compute frontend image tag
      id: image-tag
      run: |
        image_repo="ghcr.io/${{ github.repository_owner }}/kemkas-frontend"
        sha_tag="${image_repo}:${GITHUB_SHA::8}"

        tags="$sha_tag"
        if [[ "${GITHUB_REF}" == "refs/heads/main" ]]; then
          tags+=$'\n'"${image_repo}:latest"
        fi

        echo "image_sha_tag=${sha_tag}" >> "$GITHUB_OUTPUT"
        {
          echo "tags<<EOF"
          echo "$tags"
          echo "EOF"
        } >> "$GITHUB_OUTPUT"
    - name: Build and push frontend image
      uses: docker/build-push-action@v7
      with:
        context: ./frontend/
        file: ./frontend/Dockerfile
        cache-from: type=gha
        cache-to: type=gha,mode=max
        push: true
        tags: |
          ${{ steps.image-tag.outputs.tags }}

  build-e2e:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write
    outputs:
      image_sha_tag: ${{ steps.image-tag.outputs.image_sha_tag }}
    steps:
    - uses: actions/checkout@v6
    - uses: docker/setup-buildx-action@v4
    - name: Log in to GitHub Container Registry
      uses: docker/login-action@v4
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    - name: Compute e2e image tag
      id: image-tag
      run: |
        image_repo="ghcr.io/${{ github.repository_owner }}/kemkas-e2e"
        sha_tag="${image_repo}:${GITHUB_SHA::8}"

        tags="$sha_tag"
        if [[ "${GITHUB_REF}" == "refs/heads/main" ]]; then
          tags+=$'\n'"${image_repo}:latest"
        fi

        echo "image_sha_tag=${sha_tag}" >> "$GITHUB_OUTPUT"
        {
          echo "tags<<EOF"
          echo "$tags"
          echo "EOF"
        } >> "$GITHUB_OUTPUT"
    - name: Build and push e2e image
      uses: docker/build-push-action@v7
      with:
        context: ./e2e/
        file: ./e2e/Dockerfile
        cache-from: type=gha
        cache-to: type=gha,mode=max
        push: true
        tags: |
          ${{ steps.image-tag.outputs.tags }}

  run-e2e:
    runs-on: ubuntu-latest
    needs:
      - build-fe
      - build-e2e
    permissions:
      contents: read
      packages: read
    env:
      BACKEND_IMAGE: ${{ github.event.inputs.backend_image || 'ghcr.io/morbalint/kemkas-backend:b8565f8e' }}
      FRONTEND_IMAGE: ${{ needs.build-fe.outputs.image_sha_tag }}
      E2E_IMAGE: ${{ needs.build-e2e.outputs.image_sha_tag }}
    steps:
    - uses: actions/checkout@v6
    - name: Setup docker compose
      uses: docker/setup-compose-action@v2
    - name: Log in to GitHub Container Registry
      uses: docker/login-action@v4
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    - name: Pull images for test run
      run: docker compose -f e2e.docker-compose.yaml pull
    - name: Run Docker Compose E2E tests
      run: docker compose -f e2e.docker-compose.yaml up --no-build --abort-on-container-exit --exit-code-from e2e e2e
    - name: Upload Playwright HTML report
      if: always()
      uses: actions/upload-artifact@v7
      with:
        name: playwright-report
        path: e2e/playwright-report
        if-no-files-found: ignore
    - name: Upload Playwright test results
      if: always()
      uses: actions/upload-artifact@v7
      with:
        name: playwright-test-results
        path: e2e/test-results
        if-no-files-found: ignore
    - name: Tear down Docker Compose stack
      if: always()
      run: docker compose -f e2e.docker-compose.yaml down -v --remove-orphans