#!/usr/bin/env bash

###############################################################
# Installs listed packages on Arch-based systems via Pacman   #
# Doesn't include desktop apps, that're managed via Flatpak   #
# Apps are sorted by category, and arranged alphabetically    #
# Be sure to delete / comment out anything you do not need    #
# For more info, see: https://wiki.archlinux.org/title/Pacman #
###############################################################
# MIT Licensed (C) Alicia Sykes 2022 <https://aliciasykes.com>#
###############################################################

# Apps to be installed via Pacman
pacman_apps=(

)



# Colors
CYAN_B='\033[1;96m'
YELLOW='\033[0;93m'
RESET='\033[0m'
GREEN='\033[0;32m'
PURPLE='\033[0;35m'
LIGHT='\x1b[2m'

PROMPT_TIMEOUT=15 # When user is prompted for input, skip after x seconds

# Print intro message
echo -e "${PURPLE}Starting Arch app install / update script"
echo -e "${LIGHT}The following script is for Arch / Arch-based headless systems, and will"
echo -e "update database, upgrade packages, clear cache then install all listed CLI apps."
echo -e "${YELLOW}Before proceeding, ensure your happy with all the packages listed in \e[4m${0##*/}"
echo -e "${RESET}"

# Check if running as root, and prompt for password if not
if [ "$EUID" -ne 0 ]; then
  echo -e "${PURPLE}Elevated permissions are required to adjust system settings."
  echo -e "${CYAN_B}Please enter your password...${RESET}"
  sudo -v
  if [ $? -eq 1 ]; then
    echo -e "${YELLOW}Exiting, as not being run as sudo${RESET}"
    exit 1
  fi
fi

# Check pacman actually installed
if ! hash pacman 2> /dev/null; then
  echo "${YELLOW_B}Pacman doesn't seem to be present on your system. Exiting...${RESET}"
  exit 1
fi

# Prompt user to update package database
echo -e "${CYAN_B}Would you like to update package database? (y/N)${RESET}\n"
read -t $PROMPT_TIMEOUT -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
  echo -e "${PURPLE}Updating dadatbase...${RESET}"
  sudo pacman -Syy --noconfirm
fi

# Prompt user to upgrade currently installed packages
echo -e "${CYAN_B}Would you like to upgrade currently installed packages? (y/N)${RESET}\n"
read -t $PROMPT_TIMEOUT -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
  echo -e "${PURPLE}Upgrading installed packages...${RESET}"
  sudo pacman -Syu --noconfirm
fi

# Prompt user to clear old package caches
echo -e "${CYAN_B}Would you like to clear unused package caches? (y/N)${RESET}\n"
read -t $PROMPT_TIMEOUT -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
  echo -e "${PURPLE}Freeing up disk space...${RESET}"
  sudo pacman -Sc --noconfirm
fi

# Prompt user to install all listed apps
echo -e "${CYAN_B}Would you like to install listed apps? (y/N)${RESET}\n"
read -t $PROMPT_TIMEOUT -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
  echo -e "${PURPLE}Starting install...${RESET}"
  for app in ${pacman_apps[@]}; do
    if hash "${app}" 2> /dev/null; then
      echo -e "${YELLOW}[Skipping]${LIGHT} ${app} is already installed${RESET}"
    elif hash flatpak 2> /dev/null && [[ ! -z $(echo $(flatpak list --columns=ref | grep $app)) ]]; then
      echo -e "${YELLOW}[Skipping]${LIGHT} ${app} is already installed via Flatpak${RESET}"
    else
      echo -e "${PURPLE}[Installing]${LIGHT} Downloading ${app}...${RESET}"
      # pacman -S ${app} --noconfirm
    fi
  done
fi

echo -e "${PURPLE}Finished installing / updating Arch packages.${RESET}"