name: Build iOS App

on:
  push:
    branches:
      - main
    paths:
      - '.github/workflows/build-ios.yml'
      - 'ios/**'
      - '*.podspec'
      - 'example/ios/**'
      - 'yarn.lock'
      - 'example/yarn.lock'
  pull_request:
    paths:
      - '.github/workflows/build-ios.yml'
      - 'ios/**'
      - '*.podspec'
      - 'example/ios/**'
      - 'yarn.lock'
      - 'example/yarn.lock'

jobs:
  build:
    name: Build iOS Example App
    runs-on: macOS-latest
    defaults:
      run:
        working-directory: example/ios
    steps:
      - uses: actions/checkout@v2

      - name: Setup JDK 1.8
        uses: actions/setup-java@v1
        with:
          java-version: 1.8

      - name: Get yarn cache directory path
        id: yarn-cache-dir-path
        run: echo "::set-output name=dir::$(yarn cache dir)"
      - name: Restore node_modules from cache
        uses: actions/cache@v2
        id: yarn-cache
        with:
          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-
      - name: Install node_modules for example/
        run: yarn install --frozen-lockfile --cwd ..

      - name: Restore Pods cache
        uses: actions/cache@v2
        with:
          path: Pods
          key: ${{ runner.os }}-pods-${{ hashFiles('**/Podfile.lock') }}
          restore-keys: |
            ${{ runner.os }}-pods-
      - name: Install Pods
        run: pod install   # TODO: Optimize this (see https://guides.cocoapods.org/plugins/optimising-ci-times.html)
      - name: Build App
        run: "xcodebuild \
          -workspace VisionCameraExample.xcworkspace \
          -scheme VisionCameraExample \
          -sdk iphoneos \
          -configuration Debug \
          CODE_SIGNING_ALLOWED=NO"