# SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
#
# SPDX-License-Identifier: AGPL-3.0-only

name: Frontend / Run E2E Tests

on:
  push:
    branches: [ develop ]
  pull_request_target:
    branches: [ develop ]
  pull_request:
    branches: [ develop ]

permissions:
  contents: read

env:
  NODE_VERSION: 18
  HEAD_COMMIT_HASH: "${{ !!github.event.pull_request && github.event.pull_request.head.sha || github.sha }}"

defaults:
  run:
    working-directory: frontend

concurrency:
  group: ${{ github.workflow }}-${{ !!github.event.pull_request && github.event.pull_request.head.label || github.ref }}-${{ github.event_name }}-${{ github.job }}
  cancel-in-progress: true

jobs:
  changes:
    name: Check for frontend changes
    runs-on: ubuntu-latest
    permissions:
      pull-requests: read
    outputs:
      changed: ${{ github.event_name == 'push' || steps.changed.outputs.files }}
    steps:
      - uses: actions/checkout@v3
        if: github.event_name != 'push'

      - name: Check for frontend file changes
        if: github.event_name != 'push'
        uses: dorny/paths-filter@v2
        id: changed
        with:
          filters: |
            files:
              - 'commons/**'
              - 'frontend/**'
              - '.github/**'
              - '.yarn/**'

  build-frontend:
    needs: changes
    if: "(github.event_name == 'pull_request_target') == github.event.pull_request.head.repo.fork"
    runs-on: ubuntu-latest
    name: Build test build of frontend
    steps:
      - name: Check out repo
        if: needs.changes.outputs.changed == 'true'
        uses: actions/checkout@v3
        with:
          ref: ${{ env.HEAD_COMMIT_HASH }}

      - name: Cache build
        if: needs.changes.outputs.changed == 'true'
        uses: actions/cache@v3.2.2
        id: build-cache
        with:
          path: frontend/.next
          key: ${{ env.HEAD_COMMIT_HASH }}

      - name: Setup node
        if: steps.build-cache.outputs.cache-hit != 'true' && needs.changes.outputs.changed == 'true'
        uses: ./.github/actions/setup-node
        with:
          NODE_VERSION: ${{ env.NODE_VERSION }}

      - name: Build test production build
        if: steps.build-cache.outputs.cache-hit != 'true' && needs.changes.outputs.changed == 'true'
        run: yarn build:test

      - uses: actions/upload-artifact@master
        if: needs.changes.outputs.changed == 'true'
        with:
          retention-days: 1
          name: e2e-build
          path: |
            frontend/.next
            !frontend/.next/cache
            !frontend/.next/standalone

  end2end:
    name: Perform E2E Test in ${{ matrix.browser }}
    needs:
      - build-frontend
      - changes
    runs-on: ubuntu-latest
    container:
      image: cypress/browsers:node18.12.0-chrome106-ff106
      options: --user 1001 --shm-size=2g
    strategy:
      fail-fast: false
      matrix:
        browser: [ 'chrome' ]
        containers: [ 1, 2, 3, 4, 5 ]
    steps:
      - name: Check out repo
        if: needs.changes.outputs.changed == 'true'
        uses: actions/checkout@v3

      - name: Cache build
        if: needs.changes.outputs.changed == 'true'
        uses: actions/cache@v3.2.2
        id: build-cache
        with:
          path: frontend/.next
          key: ${{ env.HEAD_COMMIT_HASH }}

      - name: Get yarn cache directory path
        if: needs.changes.outputs.changed == 'true'
        id: yarn-cache-dir-path
        run: echo "dir=$(yarn config get cacheFolder)" >> $GITHUB_OUTPUT

      - name: Cache yarn cache
        if: needs.changes.outputs.changed == 'true'
        uses: actions/cache@v3
        id: yarn-cache
        with:
          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
          key: ${{ runner.os }}-${{ env.NODE_VERSION }}-yarn-${{ hashFiles('frontend/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-${{ env.NODE_VERSION }}

      - name: Set up NodeJS
        if: steps.build-cache.outputs.cache-hit != 'true' && needs.changes.outputs.changed == 'true'
        uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}

      - name: Install dependencies
        if: needs.changes.outputs.changed == 'true'
        run: yarn install --immutable

      - name: Download built frontend
        if: needs.changes.outputs.changed == 'true'
        uses: actions/download-artifact@master
        with:
          name: e2e-build
          path: frontend/.next

      - name: Run server
        if: needs.changes.outputs.changed == 'true'
        run: yarn start:ci &
        env:
          NODE_ENV: test

      - name: Wait for server
        if: needs.changes.outputs.changed == 'true'
        run: "sleep 3 && curl --max-time 120 http://127.0.0.1:3001/"

      - name: Run cypress
        if: needs.changes.outputs.changed == 'true'
        run: "yarn cy:run:${{ matrix.browser }} --record true --parallel --group \"UI - ${{ matrix.browser }}\""
        env:
          CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/upload-artifact@master
        if: needs.changes.outputs.changed == 'true'
        with:
          name: screenshots
          path: cypress/screenshots