name: Tests

on:
  pull_request:
  push:
    branches:
      - main
      - beta
      - stable

concurrency:
  group: tests-${{ format('{0}-{1}', github.head_ref || github.run_number, github.job) }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  build:
    name: ${{ matrix.target }} ${{ matrix.build_type }}
    runs-on: ${{ (matrix.build_type == 'annotations') && 'ubuntu-latest' || 'ubuntu-20.04-8core' }}
    container: discourse/discourse_test:slim${{ (matrix.build_type == 'frontend' || matrix.build_type == 'system') && '-browsers' || '' }}
    timeout-minutes: 20

    env:
      DISCOURSE_HOSTNAME: www.example.com
      RUBY_GLOBAL_METHOD_CACHE_SIZE: 131072
      RAILS_ENV: test
      PGUSER: discourse
      PGPASSWORD: discourse
      USES_PARALLEL_DATABASES: ${{ matrix.build_type == 'backend' }}

    strategy:
      fail-fast: false

      matrix:
        build_type: [backend, frontend, system, annotations]
        target: [core, plugins]
        exclude:
          - build_type: annotations
            target: plugins
          - build_type: frontend
            target: core # Handled by core_frontend_tests job (below)

    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 1

      - name: Setup Git
        run: |
          git config --global user.email "ci@ci.invalid"
          git config --global user.name "Discourse CI"

      - name: Start redis
        run: |
          redis-server /etc/redis/redis.conf &

      - name: Start Postgres
        run: |
          chown -R postgres /var/run/postgresql
          sudo -E -u postgres script/start_test_db.rb
          sudo -u postgres psql -c "CREATE ROLE $PGUSER LOGIN SUPERUSER PASSWORD '$PGPASSWORD';"

      - name: Bundler cache
        uses: actions/cache@v3
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gem-${{ hashFiles('**/Gemfile.lock') }}
          restore-keys: |
            ${{ runner.os }}-gem-

      - name: Setup gems
        run: |
          gem install bundler --conservative -v $(awk '/BUNDLED WITH/ { getline; gsub(/ /,""); print $0 }' Gemfile.lock)
          bundle config --local path vendor/bundle
          bundle config --local deployment true
          bundle config --local without development
          bundle install --jobs 4
          bundle clean

      - name: Get yarn cache directory
        id: yarn-cache-dir
        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT

      - name: Yarn cache
        uses: actions/cache@v3
        id: yarn-cache
        with:
          path: ${{ steps.yarn-cache-dir.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-

      - name: Yarn install
        run: yarn install

      - name: Checkout official plugins
        if: matrix.target == 'plugins'
        run: bin/rake plugin:install_all_official

      - name: Pull compatible versions of plugins
        if: matrix.target == 'plugins'
        run: bin/rake plugin:pull_compatible_all

      - name: Fetch app state cache
        uses: actions/cache@v3
        id: app-cache
        with:
          path: tmp/app-cache
          key: >- # postgres version, hash of migrations, "parallel?"
            ${{ runner.os }}-
            ${{ hashFiles('.github/workflows/tests.yml') }}-
            ${{ matrix.postgres }}-
            ${{ hashFiles('db/**/*', 'plugins/**/db/**/*') }}-
            ${{ env.USES_PARALLEL_DATABASES }}

      - name: Restore database from cache
        if: steps.app-cache.outputs.cache-hit == 'true'
        run: psql -f tmp/app-cache/cache.sql postgres

      - name: Restore uploads from cache
        if: steps.app-cache.outputs.cache-hit == 'true'
        run: rm -rf public/uploads && cp -r tmp/app-cache/uploads public/uploads

      - name: Create and migrate database
        if: steps.app-cache.outputs.cache-hit != 'true'
        run: |
          bin/rake db:create
          bin/rake db:migrate

      - name: Create and migrate parallel databases
        if: >-
          env.USES_PARALLEL_DATABASES == 'true' &&
          steps.app-cache.outputs.cache-hit != 'true'
        run: |
          bin/rake parallel:create
          bin/rake parallel:migrate

      - name: Dump database for cache
        if: steps.app-cache.outputs.cache-hit != 'true'
        run: mkdir -p tmp/app-cache && pg_dumpall > tmp/app-cache/cache.sql

      - name: Dump uploads for cache
        if: steps.app-cache.outputs.cache-hit != 'true'
        run: rm -rf tmp/app-cache/uploads && cp -r public/uploads tmp/app-cache/uploads

      - name: Fetch turbo_rspec_runtime.log cache
        uses: actions/cache@v3
        id: test-runtime-cache
        if: matrix.build_type == 'backend' && matrix.target == 'core'
        with:
          path: tmp/turbo_rspec_runtime.log
          key: rspec-runtime-backend-core

      - name: Core RSpec
        if: matrix.build_type == 'backend' && matrix.target == 'core'
        run: bin/turbo_rspec --verbose

      - name: Plugin RSpec
        if: matrix.build_type == 'backend' && matrix.target == 'plugins'
        run: bin/rake plugin:turbo_spec

      - name: Plugin QUnit
        if: matrix.build_type == 'frontend' && matrix.target == 'plugins'
        run: QUNIT_PARALLEL=3 bin/rake plugin:qunit['*','1200000']
        timeout-minutes: 30

      - name: Ember Build for System Tests
        if: matrix.build_type == 'system'
        run: bin/ember-cli --build

      - name: Core System Tests
        if: matrix.build_type == 'system' && matrix.target == 'core'
        run: bin/system_rspec

      - name: Plugin System Tests
        if: matrix.build_type == 'system' && matrix.target == 'plugins'
        run: LOAD_PLUGINS=1 bin/system_rspec plugins/*/spec/system

      - name: Upload failed system test screenshots
        uses: actions/upload-artifact@v3
        if: matrix.build_type == 'system' && failure()
        with:
          name: failed-system-test-screenshots
          path: tmp/screenshots/*.png

      - name: Check Annotations
        if: matrix.build_type == 'annotations'
        run: |
          bin/rake annotate:ensure_all_indexes
          bin/annotate --models --model-dir app/models

          if [ ! -z "$(git status --porcelain app/models/)" ]; then
            echo "Core annotations are not up to date. To resolve, run:"
            echo "  bin/rake annotate:clean"
            echo
            echo "Or manually apply the diff printed below:"
            echo "---------------------------------------------"
            git -c color.ui=always diff app/models/
            exit 1
          fi
        timeout-minutes: 30

  core_frontend_tests:
    name: core frontend (${{ matrix.browser }})
    runs-on: ubuntu-20.04-8core
    container:
      image: discourse/discourse_test:slim-browsers
      options: --user discourse

    timeout-minutes: 35

    strategy:
      fail-fast: false
      matrix:
        browser: ["Chrome", "Firefox ESR", "Firefox Evergreen"]

    env:
      TESTEM_BROWSER: ${{ (startsWith(matrix.browser, 'Firefox') && 'Firefox') || matrix.browser }}
      TESTEM_FIREFOX_PATH: ${{ (matrix.browser == 'Firefox Evergreen') && '/opt/firefox-evergreen/firefox' }}

    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 1

      - name: Setup Git
        run: |
          git config --global user.email "ci@ci.invalid"
          git config --global user.name "Discourse CI"

      - name: Get yarn cache directory
        id: yarn-cache-dir
        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT

      - name: Yarn cache
        uses: actions/cache@v3
        id: yarn-cache
        with:
          path: ${{ steps.yarn-cache-dir.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-

      - name: Yarn install
        working-directory: ./app/assets/javascripts/discourse
        run: yarn install

      - name: Ember Build
        working-directory: ./app/assets/javascripts/discourse
        run: |
          mkdir /tmp/emberbuild
          yarn ember build --environment=test  -o /tmp/emberbuild

      - name: Core QUnit
        working-directory: ./app/assets/javascripts/discourse
        run: yarn ember exam --path /tmp/emberbuild --load-balance --parallel=5  --launch "${{ env.TESTEM_BROWSER }}" --write-execution-file --random
        timeout-minutes: 15

      - uses: actions/upload-artifact@v3
        if: ${{ always() }}
        with:
          name: ember-exam-execution-${{matrix.browser}}
          path: ./app/assets/javascripts/discourse/test-execution-*.json