name: PR
on:
    pull_request:
        types: [opened, synchronize, reopened]

env:
    NODE_VERSION: '12.x'

jobs:
    setup:
        name: Setup
        runs-on: ubuntu-latest
        timeout-minutes: 5
        steps:
            - uses: actions/checkout@v2

            - uses: actions/setup-node@v1
              with:
                  node-version: '${{ env.NODE_VERSION }}'

            - name: Cache node modules
              id: cache
              uses: actions/cache@v1
              with:
                  path: node_modules
                  key: ${{ runner.os }}-node_modules-${{ hashFiles('**/yarn.lock') }}

            - name: Install Dependencies
              if: steps.cache.outputs.cache-hit != 'true'
              run: yarn

    eslint:
        name: Eslint
        runs-on: ubuntu-latest
        needs: [setup]
        timeout-minutes: 5
        steps:
            - uses: actions/checkout@v2
              with:
                  fetch-depth: 0

            - uses: actions/setup-node@v1
              with:
                  node-version: '${{ env.NODE_VERSION }}'

            - name: Fetch all branches
              run: |
                  git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*
            - name: Cache node modules
              uses: actions/cache@v1
              with:
                  path: node_modules
                  key: ${{ runner.os }}-node_modules-${{ hashFiles('**/yarn.lock') }}

            - name: Run Eslint
              run: yarn lint:ci -- $(git diff --diff-filter d --name-only origin/${{ github.base_ref }}...HEAD -- '*.js' '*.jsx')

    tests:
        name: Tests
        runs-on: ubuntu-latest
        needs: [setup]
        timeout-minutes: 5
        steps:
            - uses: actions/checkout@v2

            - uses: actions/setup-node@v1
              with:
                  node-version: '${{ env.NODE_VERSION }}'

            - name: Cache node modules
              uses: actions/cache@v1
              with:
                  path: node_modules
                  key: ${{ runner.os }}-node_modules-${{ hashFiles('**/yarn.lock') }}

            - name: Run Tests
              run: yarn test:ci