#!/bin/bash
set -e

# Go to project root (directory of this script)
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

# === 1. Configure + build in ./build ===
if [ ! -d build ]; then
    mkdir build
fi

cd build

# Configure (safe to re-run; does nothing if already configured)
cmake ..

# Build tests target (incremental; only recompiles changed files)
cmake --build . --target tests

cd "$SCRIPT_DIR"

# === 2. Load OpenMP config from omp.cfg ===
if [ -f omp.cfg ]; then
    # Export all non-comment, non-empty lines as env vars
    export $(grep -v '^[[:space:]]*#' omp.cfg | grep -v '^[[:space:]]*$' | xargs)
fi

# Optional: show what we're using
echo ">>> Using OpenMP settings:"
echo "    OMP_PROC_BIND=${OMP_PROC_BIND}"
echo "    OMP_PLACES=${OMP_PLACES}"
echo "    OMP_MAX_ACTIVE_LEVELS=${OMP_MAX_ACTIVE_LEVELS}"
echo "    OMP_NUM_THREADS=${OMP_NUM_THREADS}"
echo "    OMP_DYNAMIC=${OMP_DYNAMIC}"
echo "    OMP_SCHEDULE=${OMP_SCHEDULE}"
echo "    OMP_DISPLAY_ENV=${OMP_DISPLAY_ENV}"

# === 3. Run tests ===
./build/tests "$@"