#!/bin/bash
set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
OUTPUT_TARGET="${1:-$SCRIPT_DIR}"
mkdir -p "$OUTPUT_TARGET"
OUTPUT_DIR="$(cd "$OUTPUT_TARGET" && pwd)"

MOC_BIN=""
for candidate in /usr/libexec/qt6/moc /usr/lib64/qt6/libexec/moc moc-qt6 moc; do
    if command -v "$candidate" &>/dev/null; then
        MOC_BIN="$candidate"
        break
    elif [ -x "$candidate" ]; then
        MOC_BIN="$candidate"
        break
    fi
done

if [ -z "$MOC_BIN" ]; then
    echo "Warning: Qt6 moc compiler not found. Skipping Purpose plugin compilation."
    exit 0
fi

# Detect header search paths
INC_ARGS=()
if [ -d "/usr/include/KF6/Purpose" ]; then
    INC_ARGS+=("-I/usr/include/KF6/Purpose" "-I/usr/include/KF6/KCoreAddons" "-I/usr/include/KF6")
elif [ -d "/tmp/purpose_devel/usr/include/KF6/Purpose" ]; then
    INC_ARGS+=("-I/tmp/purpose_devel/usr/include/KF6/Purpose" "-I/tmp/purpose_devel/usr/include/KF6/KCoreAddons" "-I/tmp/purpose_devel/usr/include/KF6")
fi

if [ -d "/usr/include/qt6" ]; then
    INC_ARGS+=("-I/usr/include/qt6" "-I/usr/include/qt6/QtCore" "-I/usr/include/qt6/QtGui")
fi

if [ ${#INC_ARGS[@]} -eq 0 ]; then
    echo "Warning: KF6 Purpose headers not found. Skipping Purpose plugin compilation."
    exit 0
fi

LIB_ARGS=()
if [ -f "/usr/lib64/libKF6Purpose.so.6" ]; then
    LIB_ARGS+=("/usr/lib64/libKF6Purpose.so.6")
elif [ -f "/usr/lib/libKF6Purpose.so.6" ]; then
    LIB_ARGS+=("/usr/lib/libKF6Purpose.so.6")
fi

if [ -f "/usr/lib64/libKF6CoreAddons.so.6" ]; then
    LIB_ARGS+=("/usr/lib64/libKF6CoreAddons.so.6")
elif [ -f "/usr/lib/libKF6CoreAddons.so.6" ]; then
    LIB_ARGS+=("/usr/lib/libKF6CoreAddons.so.6")
fi

BUILD_DIR="$(mktemp -d)"
trap 'rm -rf "$BUILD_DIR"' EXIT

cp "$SCRIPT_DIR/f0ckmplugin.cpp" "$SCRIPT_DIR/f0ckmplugin.json" "$BUILD_DIR/"

pushd "$BUILD_DIR" >/dev/null
"$MOC_BIN" "${INC_ARGS[@]}" f0ckmplugin.cpp -o f0ckmplugin.moc
g++ -shared -fPIC -O2 f0ckmplugin.cpp \
    "${INC_ARGS[@]}" \
    "${LIB_ARGS[@]}" \
    -lQt6Core \
    -o "$OUTPUT_DIR/f0ckmpurposeplugin.so"
popd >/dev/null

echo "Successfully built f0ckmpurposeplugin.so at $OUTPUT_DIR/f0ckmpurposeplugin.so"