#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
JOBS="${JOBS:-$(nproc)}"
PYTHON_BIN="${PYTHON_BIN:-${ROOT_DIR}/.venv/bin/python}"

if [[ ! -x "${PYTHON_BIN}" ]]; then
    uv sync --dev
fi

if ! PYTHONPATH= "${PYTHON_BIN}" -c 'import pybind11, numpy' >/dev/null 2>&1; then
    uv sync --dev
fi

"${ROOT_DIR}/scripts/build_openfoam_airfrans_subset.sh" >/dev/null

# blockMesh/createZones are verification fixtures for deterministic tutorial cases.
set +u
source "${ROOT_DIR}/OpenFOAM-14/etc/bashrc" \
    WM_MPLIB=Dummy \
    ParaView_TYPE=none \
    SCOTCH_TYPE=none \
    ZOLTAN_TYPE=none
set -u

# OpenFOAM's SIGFPE trap is useful for solver binaries but unsafe for Python's
# own floating-point formatting/comparison code inside the verification process.
unset FOAM_SIGFPE

(
    cd "${ROOT_DIR}/OpenFOAM-14"
    wmake -j "${JOBS}" libso src/mesh/blockMesh >/dev/null
    wmake -j "${JOBS}" applications/utilities/mesh/generation/blockMesh >/dev/null
    wmake -j "${JOBS}" applications/utilities/mesh/manipulation/createZones >/dev/null
)

"${ROOT_DIR}/scripts/build_python_stepper.sh" >/dev/null

"${PYTHON_BIN}" "${ROOT_DIR}/scripts/verify_python_stepper.py"