name: Build App

# Manual-only since #11946. The hosted 7 GB runner can no longer build this tree — 19 of
# the last 30 runs died with "The runner has received a shutdown signal" (VM out of
# memory) ~8 min into `next build`, release/v3.8.51 itself included, even with the 10 GB
# swapfile below. Triggered on `push: branches: ["**"]` it painted every branch and every
# PR red while producing an artefact nothing downloads. The bundle is validated where a
# build actually fits:
#   - main:       ci.yml `Build` (self-hosted omni-build pool) on every merge
#   - release/**: nightly-release-green.yml (same pool, continuous)
# Dispatch this workflow by hand when a hosted build artefact is genuinely needed.
on:
  workflow_dispatch:

permissions:
  contents: read

jobs:
  build:
    name: Fast Production Build
    runs-on: ubuntu-latest
    steps:
      - name: Expand Virtual Memory (Native 10GB Swap)
        run: |
          sudo swapoff -a || true
          sudo rm -f /mnt/swapfile /swapfile
          sudo fallocate -l 10G /mnt/swapfile || sudo dd if=/dev/zero of=/mnt/swapfile bs=1M count=10240
          sudo chmod 600 /mnt/swapfile
          sudo mkswap /mnt/swapfile
          sudo swapon /mnt/swapfile
          free -h

      - name: Checkout repository
        uses: actions/checkout@v7
        with:
          persist-credentials: false

      - name: Setup Node.js
        uses: actions/setup-node@v7
        with:
          node-version: "24"
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Build Next.js app & CLI bundle
        run: |
          npm run build:release
        env:
          NODE_OPTIONS: "--max-old-space-size=12288"
          OMNIROUTE_BUILD_MEMORY_MB: "12288"
          OMNIROUTE_USE_TURBOPACK: "1"

      - name: Archive build outputs
        run: |
          tar -czf omniroute-build.tar.gz .build dist

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: omniroute-build
          path: omniroute-build.tar.gz
          retention-days: 7