#!/bin/sh

if [ ! "@SUNSHINE_UNDEFINED_VARIABLE@" = "" ]; then
	echo "Please run gen-deb generated by cmake inside the build directory"
	exit 1
fi

if [ -d package-deb ]; then
	echo "package-deb already exists: It will be replaced"
	rm -rf package-deb
fi

export DEBIAN=@CMAKE_CURRENT_BINARY_DIR@/package-deb/sunshine/DEBIAN
export RULES=@CMAKE_CURRENT_BINARY_DIR@/package-deb/sunshine/etc/udev/rules.d
export BIN=@CMAKE_CURRENT_BINARY_DIR@/package-deb/sunshine/usr/bin
export SERVICE=@CMAKE_CURRENT_BINARY_DIR@/package-deb/sunshine/usr/lib/systemd/user
export ASSETS=@CMAKE_CURRENT_BINARY_DIR@/package-deb/sunshine/etc/sunshine

mkdir -p $DEBIAN
mkdir -p $RULES
mkdir -p $BIN
mkdir -p $ASSETS/shaders
mkdir -p $SERVICE

if [ ! -f sunshine ]; then
	echo "Error: Can't find sunshine"
	exit 1
fi

cat << 'EOF' > $DEBIAN/conffiles
/etc/sunshine/sunshine.conf
/etc/sunshine/apps_linux.json
EOF

cat << 'EOF' > $DEBIAN/control
Package: sunshine
Architecture: amd64
Maintainer: @loki
Priority: optional
Version: 0.11.0
Depends: libssl1.1, libavdevice58, libboost-thread1.67.0 | libboost-thread1.71.0 | libboost-thread1.74.0, libboost-filesystem1.67.0 | libboost-filesystem1.71.0 | libboost-filesystem1.74.0, libboost-log1.67.0 | libboost-log1.71.0 | libboost-log1.74.0, libpulse0, libopus0, libxcb-shm0, libxcb-xfixes0, libxtst6, libevdev2, libdrm2, libcap2
Description: Gamestream host for Moonlight
EOF

cat << 'EOF' > $DEBIAN/preinst
#Store backup for old config files to prevent it from being overwritten
if [ -f /etc/sunshine/sunshine.conf ]; then
        cp /etc/sunshine/sunshine.conf /etc/sunshine/sunshine.conf.old
fi

if [ -f /etc/sunshine/apps_linux.json ]; then
        cp /etc/sunshine/apps_linux.json /etc/sunshine/apps_linux.json.old
fi
EOF

cat << 'EOF' > $DEBIAN/postinst
#!/bin/sh

export GROUP_INPUT=input

if [ -f /etc/group ]; then
        if ! grep -q $GROUP_INPUT /etc/group; then
                echo "Creating group $GROUP_INPUT"

                groupadd $GROUP_INPUT
        fi
else
        echo "Warning: /etc/group not found"
fi

if [ -f /etc/sunshine/sunshine.conf.old ]; then
	echo "Restoring old sunshine.conf"
	mv /etc/sunshine/sunshine.conf.old /etc/sunshine/sunshine.conf
fi

if [ -f /etc/sunshine/apps_linux.json.old ]; then
	echo "Restoring old apps_linux.json"
	mv /etc/sunshine/apps_linux.json.old /etc/sunshine/apps_linux.json
fi

# Update permissions on config files for Web Manager
if [ -f /etc/sunshine/apps_linux.json ]; then
	echo "chmod 666 /etc/sunshine/apps_linux.json"
	chmod 666 /etc/sunshine/apps_linux.json
fi

if [ -f /etc/sunshine/sunshine.conf ]; then
	echo "chmod 666 /etc/sunshine/sunshine.conf"
	chmod 666 /etc/sunshine/sunshine.conf
fi

# Ensure Sunshine can grab images from KMS
path_to_setcap=$(which setcap)
if [ -x "$path_to_setcap" ] ; then
  echo "$path_to_setcap cap_sys_admin+p /usr/bin/sunshine"
	$path_to_setcap cap_sys_admin+p /usr/bin/sunshine
fi
EOF

cat << 'EOF' > $RULES/85-sunshine-rules.rules
KERNEL=="uinput", GROUP="input", MODE="0660"
EOF

cp sunshine $BIN/sunshine
cp @CMAKE_CURRENT_SOURCE_DIR@/assets/apps_linux.json $ASSETS/apps_linux.json
cp @CMAKE_CURRENT_SOURCE_DIR@/assets/sunshine.conf $ASSETS/sunshine.conf
cp @CMAKE_CURRENT_BINARY_DIR@/sunshine.service $SERVICE/sunshine.service
cp -r @CMAKE_CURRENT_SOURCE_DIR@/assets/web $ASSETS/web
cp -r @CMAKE_CURRENT_SOURCE_DIR@/assets/shaders/opengl $ASSETS/shaders/opengl

chmod 755 $DEBIAN/postinst
chmod 755 $DEBIAN/preinst
chmod 755 $BIN/sunshine
chmod 644 $RULES/85-sunshine-rules.rules
chmod 666 $ASSETS/apps_linux.json
chmod 666 $ASSETS/sunshine.conf

cd package-deb
if fakeroot dpkg-deb --build sunshine; then
	echo "generated debian package: @CMAKE_CURRENT_BINARY_DIR@/package-deb/sunshine.deb"
fi
cd ..