#!/bin/bash

sapphrc_config="$HOME/.config/sapphrc"

usage(){
  echo -n "sapphrc "
  cat /usr/share/doc/sapphrc/$(basename $0)
}

check_name(){
  if [ -z "${1}" ];then
    $2 || echo "Profile name cannot be blank"
    return 0
  fi
  if [[ ! "$1" =~ ^[a-zA-Z0-9_-]+$ ]];then
    $2 || echo "Profile name can only contain numbers, letters, hyphens, and underscores"
    return 0
  fi
  return 1
}

validate_profile(){
  profile_name="${1}"
  first_check=true
  while check_name "${profile_name}" "$first_check";do
    first_check=false
    if [ "$COMMAND" == "create" ];then
      read -p "Profile Name: " profile_name
    else
      backups=( "${sapphrc_config}/backups/"* )
      echo "$backups"
      if [ -d "${backups[0]}" ];then
        select d in $(ls "${sapphrc_config}/backups/");do test -n "$d" && break; echo ">>> Invalid Selection"; done
        profile_name="$d"
      else
        echo "No backups exist!"
        exit 1
      fi
    fi
  done
  sapphrc_profile="${sapphrc_config}/backups/${profile_name}"
  sapphrc_profile_rcdir="${sapphrc_profile}/home/.sapphrc"
  sapphrc_profile_rc="${sapphrc_profile_rcdir}/${profile_name}"
}

inex_func(){
  validate_profile "${profile_name}"
  [ ${#@} -eq 0 ] && echo "No files selected" && exit 1
  for file in "$@";do
    fullpath=$(realpath "${file}")
    if ! [[ "$fullpath" =~ ^"$HOME/".* ]];then
      echo "file not in home dir"
      break
    fi
    if ! [[ -d "$file" || -f "$file" ]];then
      echo "file does not exist"
      break
    fi
    filelist+=(${fullpath#$HOME/})
  done

  for e in ${filelist[@]};do
    echo $e
  done

  read -p "${bold}Add the listed files/directories to profile '${profile_name}'?${normal} (Y/n)" yn
  if ! [[ "${yn}" =~ ^([nN][oO]|[nN])$ ]];then
    for e in ${filelist[@]};do
      if grep -q ^"${e}"$ "${sapphrc_config}/backups/${profile_name}/${inex}";then
        echo "already in file"
      else
        echo $e|tee -a "${sapphrc_config}/backups/${profile_name}/${inex}" >/dev/null
      fi
    done
  fi
}

inex_rm(){
  validate_profile "${profile_name}"
  i=0
  while read line; do
    rmfiles+=("$i");i=$(($i+1))
    rmfiles+=("$line")
    rmfiles+=("$line")
  done < "${sapphrc_config}/backups/${profile_name}/${inex}"
  [ ${#rmfiles[@]} -eq 0 ] && echo "No files in list" && exit 1
  choices=($(dialog --checklist --output-fd 1 "Select options:" 0 0 0 "${rmfiles[@]}"))
  if [ $? -ne 0 ]; then
    echo "User canceled."
    exit 1
  fi

  for choice in "${choices[@]}"; do
    rmlines="${rmlines}$((${choice}+1))d;"
  done
  sed -i "${rmlines}" "${sapphrc_config}/backups/${profile_name}/${inex}"
  echo "Removed ${#choices[@]} paths from ${profile_name} ${inex} list"
}

validate_backupdir(){
  if [ -d "$HOME/.config/sapphrc/backups/.git" ];then
    echo "backup folder looks good!"
  else
    echo "git repo not initialized! Something's gone wrong"
    exit 1
  fi
}