# This workflow is designed to stop us accidently committing the lockfile/packagejson symlink changes
# which would cause the default Ember version to change.

name: Ember Version Enforcement

on:
  pull_request:
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: yarn
      - name: Yarn install
        run: |
          cd app/assets/javascripts/discourse
          yarn install
      - name: "Check default ember version"
        working-directory: app/assets/javascripts/discourse
        run: |
          node -e '
            const version = require("ember-source/package.json").version;
            console.log("Ember version is", version);
            if(version.split(".")[0] !== "5"){
              console.log(`Ember has unexpectedly been downgraded to version ${version}. If this is intentional, remove this github workflow.`);
              process.exit(1);
            }
          '
      - name: Downgrade ember
        run: |
          script/switch_ember_version 3
          cd app/assets/javascripts/discourse
          yarn install
      - name: "Check upgraded version"
        working-directory: app/assets/javascripts/discourse
        run: |
          node -e '
            const version = require("ember-source/package.json").version;
            console.log("Ember version is", version);
            if(version.split(".")[0] !== "3"){
              console.log(`Expected Ember 3, but found ${version}`);
              process.exit(1);
            }
          '
      - name: "Revert ember downgrade"
        run: |
          script/switch_ember_version 5
      - name: "Ensure no diff"
        run: |
          if [ ! -z "$(git status --porcelain)" ]; then
            echo "Working directory was not clean after upgrading/downgrading ember. Perhaps a lockfile is out-of-date. Run this command to re-sync:"
            echo "  script/regen_ember_3_lockfile"
            echo
            echo "Current diff:"
            echo "---------------------------------------------"
            git -c color.ui=always diff
            exit 1
          fi