#!/usr/bin/env bash

# Installing depedencies
sudo apt update
sudo apt install libsdl2-dev libsdl2-image-dev git pkg-config automake make autoconf libtool -y

# Downloading and building GL4D
git clone https://github.com/noalien/GL4Dummies.git
cd GL4Dummies || exit
make -f Makefile.autotools
./configure
make

# Installing GL4D
sudo make install

# Removing sourcecode
cd ..
rm -rf GL4Dummies

# Fix for shared libraries (https://stackoverflow.com/a/9395355)
sudo ldconfig

# Changing env variables path and ld_library_path
# To correct locations to all the shell installed

# To .bashrc if exists
if [ -f "$HOME"/.bashrc ] ; then
    echo "" >> "$HOME"/.bashrc
    echo "# GL4Dummies" >> "$HOME"/.bashrc
    echo "export PATH=\$PATH:\$HOME/local/bin" >> "$HOME"/.bashrc
    echo "export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:\$HOME/local/lib" >> "$HOME"/.bashrc
    echo "" >> "$HOME"/.bashrc
fi

# To .zshrc if exists
if [ -f "$HOME"/.zshrc ] ; then
    echo "" >> "$HOME"/.zshrc
    echo "# GL4Dummies" >> "$HOME"/.zshrc
    echo "export PATH=\$PATH:\$HOME/local/bin" >> "$HOME"/.zshrc
    echo "export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:\$HOME/local/lib" >> "$HOME"/.zshrc
    echo "" >> "$HOME"/.zshrc
fi

# If config.fish exists
if [ -f "$HOME"/.config/fish/config.fish ] ; then
    echo "" >> "$HOME"/.config/fish/config.fish
    echo "# GL4Dummies" >> "$HOME"/.config/fish/config.fish
    echo "set -gx PATH \$HOME/local/bin \$PATH" >> "$HOME"/.config/fish/config.fish
    echo "set -gx LD_LIBRARY_PATH \$HOME/local/lib $LD_LIBRARY_PATH" >> "$HOME"/.config/fish/config.fish
    echo "" >> "$HOME"/.config/fish/config.fish
fi

echo -e "\nGL4D library installed! 🎉"
echo "You may need to restart your shell to apply changes."
echo "When using <SDL2/SDL_image.h>, add -lSDL2_image flag with gcc."