name: CI

on:
  push:
  pull_request:

jobs:
  Build:
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Set up Node.js
        uses: actions/setup-node@v2
        with:
          node-version: 12

      - id: cache-node-modules
        name: Download cache
        uses: actions/cache@v2
        with:
          path: node_modules
          key: ${{ runner.os }}-node-modules-${{ hashFiles('**/yarn.lock') }}

      - name: Install dependencies
        if: steps.cache-node-modules.outputs.cache-hit != 'true'
        run: yarn install

      - name: ESLint
        run: yarn lint

      - name: TypeScript
        run: yarn tsc

      - name: Build
        run: yarn build

      - name: Upload build artifacts
        uses: actions/upload-artifact@v2
        with:
          name: build
          path: dist
          retention-days: 7

  Docker:
    runs-on: ubuntu-20.04
    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
    steps:
      - name: Login to the GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          target: app
          tags: ghcr.io/${{ github.repository }}:latest
          push: true
          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}:latest
          cache-to: type=inline