name: Chat shard timing probe

on:
  workflow_dispatch:

permissions:
  contents: read

jobs:
  general_tests:
    name: General tests (${{ matrix.group_label }})
    runs-on: ubuntu-latest
    timeout-minutes: 20
    permissions:
      contents: read
    strategy:
      fail-fast: false
      matrix:
        include:
          # Split the long chat file by collected test locations, and balance
          # the remaining server files across five runners. Normal PR/local
          # invocations retain their complete general-server group.
          - group: general-server-without-chat
            group_label: server (1/5)
            shard_index: 0
            shard_count: 5
          - group: general-server-without-chat
            group_label: server (2/5)
            shard_index: 1
            shard_count: 5
          - group: general-server-without-chat
            group_label: server (3/5)
            shard_index: 2
            shard_count: 5
          - group: general-server-without-chat
            group_label: server (4/5)
            shard_index: 3
            shard_count: 5
          - group: general-server-without-chat
            group_label: server (5/5)
            shard_index: 4
            shard_count: 5
          - group: general-chat
            group_label: chat (1/3)
            shard_index: 0
            shard_count: 3
          - group: general-chat
            group_label: chat (2/3)
            shard_index: 1
            shard_count: 3
          - group: general-chat
            group_label: chat (3/3)
            shard_index: 2
            shard_count: 3

    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
        with:
          ref: ${{ github.sha }}

      - name: Setup pnpm
        uses: pnpm/action-setup@0977fd99725f1db4007ccb2928dbb4e90d06cc86 # v6
        with:
          version: 9.15.4

      - name: Setup Node.js
        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7
        with:
          node-version: 24
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --no-frozen-lockfile

      - name: Run grouped general test suites
        run: |
          if [ -n "${{ matrix.shard_count }}" ]; then
            pnpm test:run:general -- --group '${{ matrix.group }}' \
              --shard-index ${{ matrix.shard_index }} --shard-count ${{ matrix.shard_count }}
          else
            pnpm test:run:general -- --group '${{ matrix.group }}'
          fi