prayertimes.sh

#!/bin/bash

if [[ ! -e /usr/local/bin/prayertimes ]]; then
  echo "Downloading script.."
  sudo wget -O /usr/local/bin/prayertimes https://raw.githubusercontent.com/hllvc/Vaktija.ba-Unix-Notifications/develop/prayertimes.sh
  echo "Setting permission.."
  sudo chmod a+x /usr/local/bin/prayertimes
  exit 2
fi

os="$(uname)"

if [[ $os == Darwin ]]; then
  homedir="/Users"
elif [[ $os == Linux ]]; then
  homedir="/home"
fi

config="$homedir/$USER/.prayerconfig"

url="https://api.vaktija.ba/vaktija/v1"

usage () {
  echo -e "\nUsage: $(basename "$0") [OPTIONS] <ARG>

  Where OPTIONS are:

      -h        Show this help
      -c        Remove config
      -u        Update town and data
      -e        Edit config file
      -s        Show config file
      -l ARG    Change language (where ARG is [en] or [ba])"
  exit 2
}

get_town () {
  [[ $lang == 0 ]] && echo -e "\nFetching list of towns..\n"
  [[ $lang == 1 ]] && echo -e "\nDobavljamo listu gradova..\n"
  old_ifs=$IFS
  IFS=$'\n'
  locations=($(curl -fsSL "$url/lokacije" | jq -r ".[]"))
  IFS=$old_ifs

  for i in ${!locations[@]}; do
    echo "[$i] ${locations[$i]}"
  done

  [[ $lang == 0 ]] && echo -e "\nDefault set to Sarajevo"
  [[ $lang == 1 ]] && echo -e "\nZadani grad Sarajevo"

  while
    [[ $lang == 0 ]] && read -p $'\nChoose town [ENTER for default]\n> ' town
    [[ $lang == 1 ]] && read -p $'\nOdaberite grad [ENTER za zadani grad]\n> ' town
    [[ $town -lt 0 ]] || [[ $town -gt $((${#locations[@]}-1)) ]]
  do
    [[ $lang == 0 ]] && echo -e "\nInvalid choice!"
    [[ $lang == 1 ]] && echo -e "\nPogresan odabir!"
  done

  [[ -z $town ]] && town=77
  [[ $lang == 0 ]] && echo -e "\nSaving town choice to $config"
  [[ $lang == 1 ]] && echo -e "\nSpremanje grada u $config"
  sed -i'' -e 's/town=.*/town='$town'/' $config
}

initital_config () {
  echo $'lang=\ntown=' > $config

  while [[ $lang > 1 ]] || [[ $lang < 0 ]]; do
    read -p $'\nLanguages (Jezici):\n\n[0] English\n[1] Bosanski\n\nChoose language (Odaberite jezik)\n> ' lang
  done

  [[ $lang == 0 ]] && echo -e "\nSaving language choice to $config"
  [[ $lang == 1 ]] && echo -e "\nSpremanje jezika u $config"
  sed -i'' -e 's/lang=.*/lang='"$lang"'/' $config

  get_town

  usage
}

load_config () {
  [[ ! -e $config ]] && return 1

  old_ifs=$IFS
  IFS="="

  while
    lang=($(grep 'lang=[0-1]' $config))
    [[ $? != 0 ]]
  do initital_config; done
  lang=${lang[1]}

  while
    town=($(grep 'town=[0-90-90-9]' $config))
    [[ $? != 0 ]]
  do
    [[ $lang == 0 ]] && echo $'\nContinuing setup..'
    [[ $lang == 1 ]] && echo $'\nNastavka konfiguracije..'
    get_town
    usage
  done
  town=${town[1]}

  IFS=$old_ifs
}

load_config
[[ $? == 1 ]] && initital_config

while getopts 'hcuesl:' arg; do
  case "$arg" in
    h)
      usage
      ;;
    c)
      sudo rm /usr/local/bin/prayertimes $config
      exit 2
      ;;
    u)
      get_town
      ;;
    e)
      $EDITOR $config
      exit 2
      ;;
    s)
      cat $config
      exit 2
      ;;
    l)
      if [[ $OPTARG == "en" ]]; then
        lang=0
      elif [[ $OPTARG == "ba" ]]; then
        lang=1
      else
        usage
      fi
      sed -i'' -e 's/lang=[0-1]/lang='"$lang"'/' $config
      ;;
    *)
      usage
      ;;
  esac
done

current_time="$(date +"%H:%M:%S")"
prayer_times=($(curl -fsSL "$url/$town" | jq -r ".vakat[]"))

check_if_passed_Darwin () {
  if ([[ $(date -j -f "%H:%M" "$1" +"%H") < $(date -j -f "%H:%M:%S" "$current_time" +"%H") ]] || \
    ( [[ $(date -j -f "%H:%M" "$1" +"%H") == $(date -j -f "%H:%M:%S" "$current_time" +"%H") ]] && [[ $(date -j -f "%H:%M" "$1" +"%M") < $(date -j -f "%H:%M:%S" "$current_time" +"%M") ]] )) && \
    [[ $1 == ${prayer_times[0]} ]] && [[ $(date -j -f "%H:%M" "${prayer_times[5]}" +"%H") < $(date -j -f "%H:%M:%S" "$current_time" +"%H") ]]; then
    return 2
  elif [[ $(date -j -f "%H:%M" "$1" +"%H") < $(date -j -f "%H:%M:%S" "$current_time" +"%H") ]] || \
    ( [[ $(date -j -f "%H:%M" "$1" +"%H") == $(date -j -f "%H:%M:%S" "$current_time" +"%H") ]] && [[ $(date -j -f "%H:%M" "$1" +"%M") < $(date -j -f "%H:%M:%S" "$current_time" +"%M") ]] ); then
    return 1
  fi
  return 0
}

check_if_passed_Linux () {
	if ([[ $(date -d "$1" +"%H") < $(date -d "$current_time" +"%H") ]] || \
		( [[ $(date -d "$1" +"%H") == $(date -d "$current_time" +"%H") ]] && [[ $(date -d "$1" +"%M") < $(date -d "$current_time" +"%M") ]] )) && \
		[[ $1 == ${prayer_times[0]} ]] && [[ $(date -d "${prayer_times[5]}" +"%H") < $(date -d "$current_time" +"%H") ]]; then
		return 2
	elif [[ $(date -d "$1" +"%H") < $(date -d "$current_time" +"%H") ]] || \
		( [[ $(date -d "$1" +"%H") == $(date -d "$current_time" +"%H") ]] && [[ $(date -d "$1" +"%M") < $(date -d "$current_time" +"%M") ]] ); then
		return 1
	fi
	return 0
}

Darwin () {
	for time in ${prayer_times[@]}; do
		check_if_passed_$os $time
		exit_code=$?

		curr_hours="$(date -j -f "%H:%M:%S" "$current_time" +"%_H")"
		curr_minutes="$(date -j -f "%H:%M:%S" "$current_time" +"%_M")"
		curr_seconds="$(date -j -f "%H:%M:%S" "$current_time" +"%_S")"

		if [[ $exit_code == 0 ]]; then
			prayer_hours="$(date -j -f "%H:%M" "$time" +"%_H")"
			prayer_minutes="$(date -j -f "%H:%M" "$time" +"%_M")"
			hours=$(($prayer_hours-$curr_hours))
			minutes=$(($prayer_minutes-$curr_minutes))
			while [[ $minutes < 0 ]]; do
				minutes=$((60+$minutes))
				hours=$(($hours-1))
			done
      if (( $minutes == 1 )) && (( $curr_seconds != 0 )); then
        seconds=$((60-$curr_seconds))
        minutes=$(($minutes-1))
      fi
			break
		elif [[ $exit_code == 2 ]]; then
			prayer_hours="$(date -j -f "%H:%M" "$time" +"%_H")"
			prayer_minutes="$(date -j -f "%H:%M" "$time" +"%_M")"
			hours=$((24-$curr_hours+$prayer_hours))
			minutes=$((60-$curr_minutes+$prayer_minutes))
      if (( $minutes > 59 )); then
        minutes=$(($minutes-60))
      fi
      break
		fi
	done
}

Linux () {
	for time in ${prayer_times[@]}; do
		check_if_passed_$os $time
		exit_code=$?

		curr_hours="$(date -d "$current_time" +"%_H")"
		curr_minutes="$(date -d "$current_time" +"%_M")"
		curr_seconds="$(date -d "$current_time" +"%_S")"

		if [[ $exit_code == 0 ]]; then
			prayer_hours="$(date -d "$time" +"%_H")"
			prayer_minutes="$(date -d "$time" +"%_M")"
			hours=$(($prayer_hours-$curr_hours))
			minutes=$(($prayer_minutes-$curr_minutes))
			while [[ $minutes < 0 ]]; do
				minutes=$((60+$minutes))
				hours=$(($hours-1))
			done
      if (( $minutes == 1 )) && (( $curr_seconds != 0 )); then
        seconds=$((60-$curr_seconds))
        minutes=$(($minutes-1))
      fi
			break
		elif [[ $exit_code == 2 ]]; then
			prayer_hours="$(date -d "$time" +"%_H")"
			prayer_minutes="$(date -d "$time" +"%_M")"
			hours=$((24-$curr_hours+$prayer_hours))
			minutes=$((60-$curr_minutes+$prayer_minutes))
      if (( $minutes > 59 )); then
        minutes=$(($minutes-60))
      fi
			break
		fi
	done
}

$os

[[ $lang == 0 ]] && echo -e "\nNext prayer at $time$(([[ $hours > 0 ]] || [[ $minutes > 0 ]] || [[ $seconds > 0 ]]) && echo ", in ")$([[ $hours > 0 ]] && echo "$hours hours ")$([[ $minutes > 0 ]] && echo "$minutes minutes ")$([[ $seconds > 0 ]] && echo "$seconds seconds")"
[[ $lang == 1 ]] && echo -e "\nSljedeci vakat u $time$(([[ $hours > 0 ]] || [[ $minutes > 0 ]] || [[ $seconds > 0 ]]) && echo ", za ")$([[ $hours > 0 ]] && echo "$hours sati ")$([[ $minutes > 0 ]] && echo "$minutes minuta ")$([[ $seconds > 0 ]] && echo "$seconds sekundi")"