#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2024-present ROCKNIX (https://github.com/ROCKNIX)

###
### Simple script to build ROCKNX
###

set -e

scripts/checkdeps

if [ -z "${ARCH}" ]; then
  echo "Please export ARCH before building."
  exit 1
fi

. config/options ""
. projects/${PROJECT}/devices/${DEVICE}/options

echo "Building ${DISTRO} for ${DEVICE}"

# Collect packages to clean
PKG_CLEAN=""

if [ "${ENABLE_32BIT}" == "true" ]; then
  PKG_CLEAN+=" ${CLEAN_EMU_32BIT}"
fi

if [ "${WINDOWMANAGER}" == "weston" ]; then
  PKG_CLEAN+=" ${CLEAN_WESTON}"
fi

# Handle DEVICE_ROOT logic
if [ -n "${DEVICE_ROOT}" ]; then
  if [ "${DEVICE_ROOT}" != "${DEVICE}" ]; then
    # Remove existing build directory if present
    if [ -d "build.${DISTRO}-${DEVICE}.${ARCH}" ]; then
      echo "Removing stale build root."
      rm -rf build.${DISTRO}-${DEVICE}.${ARCH}
    fi

    # Ensure DEVICE_ROOT is built before DEVICE
    if [ ! -d "build.${DISTRO}-${DEVICE_ROOT}.${ARCH}" ]; then
      echo "ERROR: Can't find build root build.${DISTRO}-${DEVICE_ROOT}.${ARCH}"
      echo "You need to build ${DEVICE_ROOT} before ${DEVICE}"
      exit 1
    fi

    # Link build directory to DEVICE_ROOT
    if [ ! -L "build.${DISTRO}-${DEVICE}.${ARCH}" ]; then
      ln -sf build.${DISTRO}-${DEVICE_ROOT}.${ARCH} build.${DISTRO}-${DEVICE}.${ARCH}
    fi

    # Link sources if necessary
    if [ -d "sources-${DEVICE_ROOT}" ] && [ ! -L "sources-${DEVICE}" ]; then
      ln -sf sources-${DEVICE_ROOT} sources-${DEVICE}
    fi
  fi
  PKG_CLEAN+=" ${CLEAN_DEVICE_ROOT}"
fi

# Add standard packages to clean
PKG_CLEAN+=" ${CLEAN_NETWORK} ${CLEAN_OS_BASE} ${CLEAN_PACKAGES}"

if [ -z "${DIRTY}" ]; then
  # Clean packages to ensure build date and version are updated
  for package in ${PKG_CLEAN}; do
    echo "Clean: ${package}"
    ./scripts/clean "${package}" 2>/dev/null || true
  done
  rm -rf build.${DISTRO}-${DEVICE_ROOT}.${ARCH}/{.stamps/initramfs,initramfs}
fi

# Prune old releases
echo "Prune old releases: ${DISTRO}-${DEVICE}.${ARCH}-*"
rm -f ./release/${DISTRO}-${DEVICE}.${ARCH}-*
rm -f ./target/${DISTRO}-${DEVICE}.${ARCH}-*

# Remove image root
rm -rf ./build.${DISTRO}-${DEVICE}.${ARCH}/image

case "${ARCH}" in
  arm)
    if [ "${BASE_ONLY}" == "true" ] || [ "${ENABLE_32BIT}" != "true" ]; then
      exit 0
    fi
    export PKG_BUILD_PERF=no
    scripts/build_compat arm
    scripts/install arm
    ;;
  *)
    make image
    ;;
esac

if [ $? -ne 0 ]; then
  echo "Build failed..exiting."
  exit 1
fi