#!/bin/bash

## These are the colors used throughout the script.
COL_YELLOW='\e[1;33m%s\e[0m\n'
COL_LIGHT_BLUE='\e[38;5;111m%s\e[0m\n'

is_command() {
  local check_command="$1"
  command -v "${check_command}" >/dev/null 2>&1
}

git_update() {
  local git_name="$1"
  local git_path="$2"
  local git_repo="$3"
  if [ ! -d "$git_path" ]; then
    printf "$COL_YELLOW" "* Installing $git_name"
    git clone --quiet $git_repo $git_path
  else
    printf "$COL_YELLOW" "* Updating $git_name"
    git -C $git_path pull
  fi
}

should_apt_last_update() {
  LAST_UPDATED=$( stat --format="%X" /var/cache/apt/pkgcache.bin )
  UNIX_TIME=$( date +%s )
  TIME_DIFF=$(( UNIX_TIME - LAST_UPDATED ))
  if [[ "${TIME_DIFF}" -gt 43200 ]]
  then
    # 0 = true
    return 0
  else
    # 1 = false
    return 1
  fi
}

get_pkg_mgr() {
  if is_command apt-get ; then
    echo "apt-get"
  elif is_command rpm ; then
    # Then check if dnf or yum is the package manager
    if is_command dnf ; then
      echo "dnf"
    else
      echo "yum"
    fi
  fi
}

pkg_mgr_install_pkg() {

  # package to install
  local pkg_to_install="$1"

  # Get Command language
  PKG_MANAGER=$( get_pkg_mgr )

  # Run apt-get update for distros that use apt-get
  if [ "$PKG_MANAGER" == "apt-get" ] ; then
    if should_apt_last_update ; then
      "${PKG_MANAGER} update"
    fi
  fi

  # Install the package
  local PKG_INSTALL=("${PKG_MANAGER}" install -y)

  "${PKG_INSTALL[@]}" "${pkg_to_install}"
}

printf "$COL_LIGHT_BLUE" "Checking For git"
if is_command git;
then
  printf "$COL_YELLOW" "* git Is Already Installed."
else
  printf "$COL_YELLOW" "* Installing git"
  pkg_mgr_install_pkg git
fi

printf "$COL_LIGHT_BLUE"  "Checking for installation script"
template_setup_path="/etc/template_setup"
template_setup_git="https://git.deathbybandaid.net/deathbybandaid/template_setup.git"
git_update "template_setup" "$template_setup_path" "$template_setup_git"

printf "$COL_LIGHT_BLUE" "Running installation"
bash "$template_setup_path/template_setup.sh"