install

#!/usr/bin/env bash

## Author  : Aditya Shakya
## Twitter : @adi1090x
## Github  : @adi1090x
## Reddit  : @adi1090x

## Kitty-cat installer script

## ANSI Colors (FG & BG)
RED="$(printf '\033[31m')"  GREEN="$(printf '\033[32m')"  ORANGE="$(printf '\033[33m')"  BLUE="$(printf '\033[34m')"
MAGENTA="$(printf '\033[35m')"  CYAN="$(printf '\033[36m')"  WHITE="$(printf '\033[37m')" BLACK="$(printf '\033[30m')"
REDBG="$(printf '\033[41m')"  GREENBG="$(printf '\033[42m')"  ORANGEBG="$(printf '\033[43m')"  BLUEBG="$(printf '\033[44m')"
MAGENTABG="$(printf '\033[45m')"  CYANBG="$(printf '\033[46m')"  WHITEBG="$(printf '\033[47m')" BLACKBG="$(printf '\033[40m')"
DEFAULT_FG="$(printf '\033[39m')"  DEFAULT_BG="$(printf '\033[49m')"

## Directories
DIR="$(pwd)"
KITTY_DIR="$HOME/.config/kitty"

## Banner
banner () {
    clear
    echo "
    ${BLUE}/\___/\ 			          
    ${BLUE}\ -.- / ${RED} ┃ ┃┛━┏┛━┏┛┃ ┃ ${GREEN} ┏━┛┏━┃━┏┛  
    ${BLUE}'-.^.-' ${RED} ┏┛ ┃ ┃  ┃ ━┏┛ ${GREEN} ┃  ┏━┃ ┃   
    ${BLUE}  /'\   ${RED} ┛ ┛┛ ┛  ┛  ┛  ${GREEN} ━━┛┛ ┛ ┛   

    ${BLUE}[${RED}*${BLUE}] ${ORANGE}By- Aditya Shakya ${RED}//${ORANGE} adi1090x"
}

## Script Termination
exit_on_signal_SIGINT () {
    { printf "\n\n%s\n" "    ${BLUE}[${RED}*${BLUE}] ${RED}Script interrupted." 2>&1; echo; reset_color; }
    exit 0
}

exit_on_signal_SIGTERM () {
    { printf "\n\n%s\n" "    ${BLUE}[${RED}*${BLUE}] ${RED}Script terminated." 2>&1; echo; reset_color; }
    exit 0
}

trap exit_on_signal_SIGINT SIGINT
trap exit_on_signal_SIGTERM SIGTERM

## Reset terminal colors
reset_color() {
	tput sgr0   # reset attributes
	tput op     # reset color
    return
}

## Prerequisite
prerequisite() {
    dependencies=(kitty sed wget)
    for dependency in "${dependencies[@]}"; do
        type -p "$dependency" &>/dev/null || {
			banner
            { echo; echo "    ${BLUE}[${RED}!${BLUE}] ${RED}ERROR: Could not find ${MAGENTA}'${dependency}'${RED}, is it installed?" >&2; echo; }
            { reset_color; exit 1; }
        }
    done
}

## Check for previous installation
check_prev () {
	banner
	if [[ (-L /usr/local/bin/kitty-cat) && (-d /usr/local/share/kitty-cat) ]]; then
		{ echo; echo "    ${BLUE}[${RED}!${BLUE}] ${MAGENTA}kitty-cat ${GREEN}is already installed."; }
		{ read -p "    ${BLUE}[${RED}?${BLUE}] ${ORANGE}Do you wanna reinstall it? (y/n): ${GREEN}"; echo; }
		if [[ "$REPLY" =~ ^[y/Y]$ ]]; then
			install_kcat
		else
			{ reset_color; exit; }
		fi
	else
		{ echo; install_kcat; }
	fi
}

## Install kitty-cat
install_kcat () {
	echo "    ${BLUE}[${RED}*${BLUE}] ${ORANGE}Installing kitty-cat..."
	# Delete old files
	if [[ (-L /usr/local/bin/kitty-cat) && (-d /usr/local/share/kitty-cat) ]]; then
		echo "    ${BLUE}[${RED}*${BLUE}] ${RED}Deleting files from previous installation..."${BLUE}
		{ printf "    "; sudo rm -r /usr/local/bin/kitty-cat /usr/local/share/kitty-cat /usr/local/share/fonts/kitty-cat; echo; }
	fi
	# Kitty config dir
	if [[ ! -d $KITTY_DIR ]]; then
		mkdir $KITTY_DIR
	fi
	# User Config
	if [[ -f $KITTY_DIR/kitty.conf ]]; then
		mv $KITTY_DIR/kitty.conf{,.user}
	fi
	# Copy new config
	cp $DIR/kitty.conf $KITTY_DIR
	# Copying files
	{ echo "    ${BLUE}[${RED}*${BLUE}] ${ORANGE}Copying files to '/usr/local/share' directory..."${BLUE}; }
	{ printf "    "; sudo mkdir /usr/local/share/kitty-cat; sudo mkdir -p /usr/local/share/fonts/kitty-cat; }
	{ sudo cp -r $DIR/colors /usr/local/share/kitty-cat/; sudo cp -r $DIR/fonts/* /usr/local/share/fonts/kitty-cat/; sudo cp -r $DIR/kcat /usr/local/share/kitty-cat/; }
	{ sudo chmod +x /usr/local/share/kitty-cat/kcat; sudo fc-cache; sudo ln -s /usr/local/share/kitty-cat/kcat /usr/local/bin/kitty-cat; }

	# Verify files 
	if [[ (-L /usr/local/bin/kitty-cat) && (-d /usr/local/share/kitty-cat) ]]; then
		{ echo; echo "    ${BLUE}[${RED}*${BLUE}] ${GREEN}Successfully Installed."; }
		{ echo "    ${BLUE}[${RED}*${BLUE}] ${GREEN}Now You Can Run This Program By Just typing ${MAGENTA}kitty-cat${GREEN}."; echo; }
		{ reset_color; exit 0; }
	else
		{ echo "    ${BLUE}[${RED}!${BLUE}] ${RED}Error Occured."; echo; reset_color; exit 1; }
	fi
}

## Main
main () {
	prerequisite
	check_prev
}

main