name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  build:
    name: Install, typecheck, build, test
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        node-version: [22]

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 11.21.0
          run_install: false

      - name: Setup Node ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: pnpm

      # The lockfile and exact dev dependencies target DSH 0.2.2-alpha.3; the
      # declared support window is the open range >=0.2.1-rc.1 (the floor line is
      # re-verified against 0.2.1-rc.1 for every version-line move).
      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Typecheck
        run: pnpm typecheck

      - name: Build
        run: pnpm build

      - name: Test
        run: pnpm test

      - name: Pack
        run: pnpm pack --pack-destination .

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: dsh-side-chat-plus-${{ matrix.node-version }}
          path: |
            dsh-side-chat-plus-*.tgz
            lib/
          if-no-files-found: ignore

  # The declared peer window is the open range >=0.2.1-rc.1, so the FLOOR line must
  # keep working even though devDependencies track the newest line.
  # scripts/verify-dsh-lines.mjs swaps the manifest, runs typecheck/test/build, and
  # restores it; --keep skips the restore because this job discards the checkout.
  floor:
    name: Floor line (declared minimum DSH)
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 11.21.0
          run_install: false

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: pnpm

      - name: Verify the floor line
        run: pnpm verify:lines --lines 0.2.1-rc.1 --keep