#!/bin/sh -e

#                                     ╭───────────────╮
#                                     │ env functions │
#                                     ╰───────────────╯
# ───────────────────────────────────< ANSI color codes >───────────────────────────────────
RED='\033[0;31m'
CYAN='\033[0;36m'
YELLOW='\033[0;33m'
LIGHT_GREEN='\033[0;92m'
BOLD='\033[1m'
NC='\033[0m' # No Color

echo_error() {
  printf "${BOLD}${RED}ERROR: ${NC}${RED}%s${NC}\n" "$1" >&2
}

echo_info() {
  printf "${BOLD}${CYAN}INFO: ${NC}${CYAN}%s${NC}\n" "$1"
}

echo_warning() {
  printf "${BOLD}${YELLOW}WARNING: ${NC}${YELLOW}%s${NC}\n" "$1"
}

echo_note() {
  printf "${BOLD}${LIGHT_GREEN}NOTE: ${NC}${LIGHT_GREEN}%s${NC}\n" "$1"
}

command_exists() {
  command -v "$@" >/dev/null 2>&1
}

# ─────────────< Check if the user is root and set sudo variable if necessary >─────────────
check_root() {
  if [ "$(id -u)" -ne 0 ]; then
    if command_exists sudo; then
      echo_info "User is not root. Using sudo for privileged operations."
      _sudo="sudo"
    else
      echo_error "No sudo found and you're not root! Can't install packages."
      return 1
    fi
  else
    echo_info "Root access confirmed."
    _sudo=""
  fi
}

# ──────────────────────< Check if the given command exists silently >──────────────────────
command_exists() {
  command -v "$@" >/dev/null 2>&1
}

#                          ╭────────────────────────────────────╮
#                          │ insert your scripts/functions here │
#                          ╰────────────────────────────────────╯

# ─< Distribution detection and installation >────────────────────────────────────────
get_packager() {
  if [ -e /etc/os-release ]; then
    echo_info "Detecting distribution..."
    . /etc/os-release

    # ─< Convert $ID and $ID_LIKE to lowercase >──────────────────────────────────────────────
    ID=$(printf "%s" "$ID" | tr '[:upper:]' '[:lower:]')
    ID_LIKE=$(printf "%s" "$ID_LIKE" | tr '[:upper:]' '[:lower:]')

    case "$ID" in
    ubuntu | pop) _install() {
      $_sudo apt-get install --assume-yes "$@"
    } ;;
    debian) _install() {
      $_sudo apt-get install --assume-yes "$@"
    } ;;
    fedora) _install() {
      $_sudo dnf install -y "$@"
    } ;;
    alpine) inst_alpine ;;
    arch | manjaro | garuda | endeavour) _install() {
      $_sudo pacman -S --noconfirm "$@"
    } ;;
    opensuse*) inst_opensuse ;;
    *)
      if [ "${ID_LIKE#*debian}" != "$ID_LIKE" ]; then
        _install() {
          $_sudo apt-get install --assume-yes "$@"
        }
      elif [ "${ID_LIKE#*ubuntu}" != "$ID_LIKE" ]; then
        _install() {
          $_sudo apt-get install --assume-yes "$@"
        }
      elif [ "${ID_LIKE#*arch}" != "$ID_LIKE" ]; then
        _install() {
          $_sudo pacman -S --noconfirm "$@"
        }
      elif [ "${ID_LIKE#*fedora}" != "$ID_LIKE" ]; then
        _install() {
          $_sudo dnf install -y "$@"
        }
      elif [ "${ID_LIKE#*suse}" != "$ID_LIKE" ]; then
        inst_opensuse
      else
        echo_error "Unsupported distribution: $ID"
        exit 1
      fi
      ;;
    esac
  else
    echo_error "Unable to detect distribution. /etc/os-release not found."
    exit 1
  fi
}

_dependencies() {
  get_packager
  _deps="golang git mpv"

  for dependency in $_deps; do
    if ! command_exists "$dependency"; then
      echo_info "Installing $dependency"
      _install "$dependency" || echo_error "$dependency could not be installed!"
    else
      echo_note "$dependency - was already installed."
    fi
  done
}

_clone() {
  tmpdir="$(mktemp --dir)"
  repo="https://git.k4li.de/pika/ytgo.git"

  cd "$tmpdir" || echo_error "$tmpdir is not a valid directory!"
  git clone --depth=1 "$repo"
  cd ytgo || echo_error "$tmpdir/ytgo is not a valid directory!"
}

_build() {
  $_sudo make install
}

# ───────────────────────────────< main function to execute >───────────────────────────────
main() {
  if check_root; then
    _dependencies || echo_error "dependency function failed hard!"
    _clone || echo_error "clone function failed hard!"
    _build || echo_error "build function failed hard!"
  else
    echo_error "Something went terribly wrong!"
  fi
}

main