#!/bin/sh
set -e

CONTROL_FILE=$(ls -1 *.control 2>/dev/null | head -n 1)

if [ -z "$CONTROL_FILE" ]; then
    echo "Fout: Geen .control bestand gevonden in $(pwd)" >&2
    exit 1
fi

PACKAGE_NAME=$(awk '/^Package: /{print $NF}' "$CONTROL_FILE")
DETECTED_VERSION=$(awk '/^Version: /{print $NF}' "$CONTROL_FILE")

# Version resolution: CLI arg > ENV var > .control version > default 0.1.0
if [ -n "$1" ]; then
    VERSION="$1"
elif [ -n "$PACKAGE_VERSION" ]; then
    VERSION="$PACKAGE_VERSION"
elif [ -n "$VERSION" ]; then
    VERSION="$VERSION"
elif [ "$DETECTED_VERSION" != "{VERSION}" ] && [ -n "$DETECTED_VERSION" ]; then
    VERSION="$DETECTED_VERSION"
else
    VERSION="0.1.0"
fi

mkdir -p "packaging/$PACKAGE_NAME/DEBIAN"
sed "s/{VERSION}/${VERSION}/" "$CONTROL_FILE" > "packaging/$PACKAGE_NAME/DEBIAN/control"

ARCH=$(awk '/^Architecture: /{print $NF}' "packaging/$PACKAGE_NAME/DEBIAN/control")
ARCH="${ARCH:-all}"
DEB_FILENAME="${PACKAGE_NAME}-${VERSION}_${ARCH}.deb"

echo "Building package: $PACKAGE_NAME ($VERSION) [$ARCH] -> $DEB_FILENAME"

# Ensure correct Debian directory permissions
find "packaging/$PACKAGE_NAME" -type d -exec chmod 755 {} +
find "packaging/$PACKAGE_NAME" -type f -exec chmod 644 {} +
find "packaging/$PACKAGE_NAME/DEBIAN" -type f -exec chmod 755 {} + 2>/dev/null || true

# Build debian binary package
dpkg-deb --build "packaging/$PACKAGE_NAME" "$DEB_FILENAME"

# Cleanup temporary control file
rm -f "packaging/$PACKAGE_NAME/DEBIAN/control"
echo "Succesvol gebouwd: $DEB_FILENAME"