#!/usr/bin/env bash
# Runs inside the selected manylinux_2_28 image with the repo mounted at /src.
# Builds one Nuitka wheel per CPython ABI listed in ORISYS_PYTHON_TAGS.
set -euo pipefail

TARGET="${ORISYS_BUILD_TARGET:-pypi-linux}"
# Comma-separated manylinux tags, e.g. "cp310-cp310,cp311-cp311,cp312-cp312"
PYTHON_TAGS="${ORISYS_PYTHON_TAGS:-cp310-cp310,cp311-cp311,cp312-cp312}"
WHEELHOUSE_ROOT="${ORISYS_WHEELHOUSE_ROOT:-/opt/orisys-wheelhouse}"
# The image already bakes in pip/setuptools/wheel/nuitka/auditwheel. Re-resolving
# them from PyPI on every container start costs a network round-trip per ABI and
# lets the running container drift from the image it was built from.
UPDATE_BUILD_TOOLS="${ORISYS_UPDATE_BUILD_TOOLS:-0}"

cd /src

echo "=== manylinux entrypoint ==="
echo "Target: ${TARGET}"
echo "Python tags: ${PYTHON_TAGS}"
echo "Wheelhouse root: ${WHEELHOUSE_ROOT}"
uname -a

IFS=',' read -r -a TAG_ARRAY <<< "${PYTHON_TAGS}"
FAILED=0
BUILT=()

for tag in "${TAG_ARRAY[@]}"; do
  tag="$(echo "${tag}" | tr -d '[:space:]')"
  if [[ -z "${tag}" ]]; then
    continue
  fi

  PYBIN="/opt/python/${tag}/bin"
  if [[ ! -x "${PYBIN}/python" ]]; then
    echo "[ERROR] Python not found for tag ${tag}: ${PYBIN}/python" >&2
    FAILED=1
    continue
  fi

  echo ""
  echo "========================================"
  echo "Building orisys wheel: ${tag}"
  echo "Python: $("${PYBIN}/python" -V)"
  echo "========================================"

  export PATH="${PYBIN}:${PATH}"
  export PYTHONPATH="/src/src${PYTHONPATH:+:${PYTHONPATH}}"

  # Point pip at the per-ABI wheelhouse baked into the image. The pypi-linux
  # target force-enables verification, which creates a throwaway venv and
  # pip-installs the built wheel plus its declared runtime deps; serving those
  # from the wheelhouse keeps the venv isolated (no --system-site-packages) while
  # removing a ~200 MB download per ABI. PIP_* is inherited by every pip
  # subprocess, including that venv.
  wheelhouse="${WHEELHOUSE_ROOT}/${tag}"
  if [[ -d "${wheelhouse}" ]]; then
    export PIP_NO_INDEX=1
    export PIP_FIND_LINKS="${wheelhouse}"
    echo "[info] pip is offline, installing from ${wheelhouse}"
  else
    echo "[warn] no wheelhouse at ${wheelhouse}; pip will use the network." >&2
    echo "[warn] rebuild the image without -SkipImageBuild to bake it in." >&2
    unset PIP_NO_INDEX PIP_FIND_LINKS || true
  fi

  if [[ "${UPDATE_BUILD_TOOLS}" == "1" ]]; then
    echo "[info] refreshing build tooling (ORISYS_UPDATE_BUILD_TOOLS=1)"
    "${PYBIN}/python" -m pip install -q --upgrade pip setuptools wheel auditwheel
  fi

  if "${PYBIN}/python" build/wheel/build.py --target "${TARGET}"; then
    BUILT+=("${tag}")
  else
    echo "[ERROR] Build failed for ${tag}" >&2
    FAILED=1
  fi

  unset PIP_NO_INDEX PIP_FIND_LINKS || true
done

echo ""
echo "=== Build artifacts ==="
ls -la /src/dist/repaired/ || true
ls -la /src/SDK/*/ || true

if [[ ${#BUILT[@]} -gt 0 ]]; then
  echo "Built tags: ${BUILT[*]}"
fi

if [[ "${FAILED}" -ne 0 ]]; then
  echo "[ERROR] One or more Python ABI builds failed." >&2
  exit 1
fi

echo "[SUCCESS] All requested manylinux wheels built."