name: Build HiLink URLLC firmware

on:
  workflow_dispatch:

jobs:
  build:
    runs-on: openipc-builder
    timeout-minutes: 360
    env:
      DEVICE: ssc338q_fpv_openipc-urllc-aio
      BR2_DL_DIR: /tmp/builder-dl

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

      - name: Verify provisioned Buildroot toolchain
        shell: bash
        run: |
          set -eu
          id
          missing=0
          for tool in \
            bash bc bison ccache cpio curl file flex gawk gcc git gzip make \
            patch perl python3 rsync sed tar tree unzip wget xz; do
            if ! command -v "$tool" >/dev/null 2>&1; then
              echo "::error::Missing runner dependency: $tool"
              missing=1
            fi
          done
          test "$missing" = 0

      - name: Build exactly the HiLink URLLC profile
        shell: bash
        run: |
          set -euo pipefail
          export GIT_HASH="$(git rev-parse --short HEAD)"
          export GIT_BRANCH="$(git branch --show-current)"
          mkdir -p "$BR2_DL_DIR" /tmp/ccache
          ln -s /tmp/ccache "$HOME/.ccache"

          if ! bash builder.sh "$DEVICE"; then
            echo '--- largest files retained in the failed rootfs ---'
            find openipc/output/target -type f -printf '%s\t%p\n' | \
              sort -nr | sed -n '1,100p' || true
            echo '--- rootfs target usage ---'
            du -sh openipc/output/target 2>/dev/null || true
            exit 1
          fi

          mkdir -p dist
          firmware=$(find openipc/output/images -type f -name 'openipc*nor*.tgz' -print -quit)
          test -n "$firmware"
          cp "$firmware" "dist/${DEVICE}-nor.tgz"
          sha256sum "dist/${DEVICE}-nor.tgz" > "dist/${DEVICE}-nor.tgz.sha256"

          find dist -maxdepth 1 -type f -printf '%f %s bytes\n'
          cat "dist/${DEVICE}-nor.tgz.sha256"

      - name: Upload firmware artifact
        uses: actions/upload-artifact@v4
        with:
          name: hilink-urllc-${{ github.sha }}
          retention-days: 30
          path: dist/*