# This line is to have VoWi accept the file, since files starting with #!/bin/bash are not allowed for some reason. Delete this line to make the script work.
#!/bin/bash

# Installer script to setup the packages for Vulkan development on Fedora (dnf package manager).
# Requires superuser privileges (sudo).
# This script was tested on a fresh installation of Fedora KDE Workstation 43, with only Jetbrains Toolbox,
# IntelliJ and CLion installed beforehand; it should work on any recent-enough Fedora installation.
# Since Fedora ships with Vulkan drivers, no drivers will be installed by this script.
# The script assumes an x86_64 system. AARM or similar alternative architectures will require some tweaking.

# Install packages:
# - C++ and some miscellaneous required packages
# - Vulkan development libraries
# - Python, QT and associated libaries for the Vulkan SDK
# - XCB and Wayland libraries for the Vulkan SDK
# - Other libraries for the Vulkan SDK
# - Vulkan runtime dependencies
echo "[Vulkan Installer] Installing required packages..."
sudo dnf update
sudo dnf -y install \
@development-tools git wget xz zip gcc gcc-g++ gdb make cmake ninja-build \
vulkan-loader-devel vulkan-tools vulkan-utility-libraries-devel vulkan-validation-layers \
python3 python3-distutils-extra python3-jsonschema qt qt5-qtbase-devel qt6-qtbase-devel \
libxcb libxcb-devel xcb-util xcb-util-keysyms-devel xcb-util-wm-devel wayland-devel wayland-protocols-devel \ glm-devel libpciaccess-devel libpng-devel libX11-devel libXpresent libXrandr-devel libzstd-devel lz4-devel \
xinput libXinerama xcb-util-cursor

# Read version and install location
read -r -p "[Vulkan Installer] Enter the Vulkan version (\"1.x.yy.z\") you want to install: " VULKAN_VERSION
read -r -p "[Vulkan Installer] Enter the path where the Vulkan files should be stored [/var/vulkan]: " VULKAN_PATH
VULKAN_PATH=${VULKAN_PATH:-/var/vulkan}
sudo mkdir -p "$VULKAN_PATH"

# Download and extract Vulkan SDK
echo "[Vulkan Installer] Downloading Vulkan SDK $VULKAN_VERSION..."
sudo wget -O "$VULKAN_PATH/vulkan.tar.xz" "https://sdk.lunarg.com/sdk/download/$VULKAN_VERSION/linux/vulkansdk-linux-x86_64-$VULKAN_VERSION.tar.xz"
echo "[Vulkan Installer] Extracting Vulkan SDK..."
sudo tar -C "$VULKAN_PATH" -xf "$VULKAN_PATH/vulkan.tar.xz"
echo "[Vulkan Installer] Deleting downloaded Vulkan SDK archive..."
sudo rm "$VULKAN_PATH/vulkan.tar.xz"

# Set environment variables
echo "[Vulkan Installer] Setting Vulkan environment variables..."
sudo touch /etc/profile.d/vulkan.sh
sudo chmod 644 /etc/profile.d/vulkan.sh
# Use sudo sh -c here so that the whole thing, including the >>, runs as superuser
sudo sh -c 'echo "export VULKAN_SDK=\"'"$VULKAN_PATH/$VULKAN_VERSION/x86_64"'\"" >> /etc/profile.d/vulkan.sh'
sudo sh -c 'echo "export PATH=\"\$VULKAN_SDK/bin:\$PATH\"" >> /etc/profile.d/vulkan.sh'
sudo sh -c 'echo "export LD_LIBRARY_PATH=\"\$VULKAN_SDK/lib\"" >> /etc/profile.d/vulkan.sh'
sudo sh -c 'echo "export VK_LAYER_PATH=\"\$VULKAN_SDK/share/vulkan/explicit_layer.d\"" >> /etc/profile.d/vulkan.sh'
sudo sh -c 'echo "export VK_ADD_LAYER_PATH=\"\$VULKAN_SDK/share/vulkan/explicit_layer.d\"" >> /etc/profile.d/vulkan.sh'
sudo sh -c 'echo "export PKG_CONFIG_PATH=\"\$VULKAN_SDK/lib/pkgconfig/\"" >> /etc/profile.d/vulkan.sh'

echo "[Vulkan Installer] Done! You might need to restart your shell or your computer for the changes to take full effect."