#!/bin/sh

NOW=$(date +%s)

debounce () {
  local -n VAR_REFERENCE=$1 # Funky Bash Pass-by-reference here!
  VAR_NAME="$1"
  DEBOUNCE_TIME="$2" # In Seconds
  FUNCTION=$3
  FALLBACK=$4

  if [ ! -f "/tmp/debounce-$VAR_NAME" ]; then
    VAR_REFERENCE="$FUNCTION"
    echo "$(date +%s)" > "/tmp/debounce-$VAR_NAME"
  else
    LAST_CHECK=$(cat "/tmp/debounce-$VAR_NAME")

    if [ $(($NOW - $LAST_CHECK)) -gt $DEBOUNCE_TIME ]; then
      VAR_REFERENCE="$FUNCTION"
      echo "$(date +%s)" > "/tmp/debounce-$VAR_NAME"
    else
      VAR_REFERENCE="$FALLBACK"
    fi
  fi
}

get_mouse_text () {
  MOUSE_DETAILS=$(rivalcfg --battery-level)
  MOUSE_STATUS=$(echo $MOUSE_DETAILS | cut -d' ' -f1)
  MOUSE_BATTERY=$(echo $MOUSE_DETAILS | cut -d']' -f2 | tr -d '[:space:]')

  if [ "$MOUSE_STATUS" != 'Discharging' ] && [ "$MOUSE_STATUS" != 'Charging' ]; then
    cat /tmp/last-mouse-level
  else
    if [ $MOUSE_STATUS == 'Discharging' ]; then
      MOUSE_STATUS_EMOJI='🐁'
    else
      MOUSE_STATUS_EMOJI='⚡'
    fi

    echo "$MOUSE_STATUS_EMOJI $MOUSE_BATTERY" > /tmp/last-mouse-level
    cat /tmp/last-mouse-level
  fi
}

get_monero_text () {
  MONERO_DETAILS=$(monerod status | grep "Height")
  MONERO_PERCENT=$(echo $MONERO_DETAILS | cut -d" " -f3 | tr -d "()")

  if [ -n "$MONERO_DETAILS" ]; then
    echo "🟢 $MONERO_PERCENT" > /tmp/last-monero-value
  else
    echo "🔴" > /tmp/last-monero-value
  fi

  cat /tmp/last-monero-value
}

get_date () {
  date +%a" "%d" "%b" "%I:%M" "%P > /tmp/last-date
  cat /tmp/last-date
}

get_temps () {
  TEMP=$(sensors | grep Tctl | cut -d"+" -f 2 | cut -d"." -f 1)

  echo "$TEMP°C" > /tmp/last-temp
  cat /tmp/last-temp
}

debounce MOUSE_STRING 3600 \
  "$(get_mouse_text)" \
  "$(cat /tmp/last-mouse-level || get_mouse_text)";

debounce MONERO_STRING 60 \
  "$(get_monero_text)" \
  "$(cat /tmp/last-monero-value || get_monero_text)";

debounce DATE_STRING 5 \
  "$(get_date)" \
  "$(cat /tmp/last-date || get_date)";

debounce TEMP_STRING 5 \
  "$(get_temps)" \
  "$(cat /tmp/last-temp || get_temps)"

echo " $TEMP_STRING | $MOUSE_STRING | $MONERO_STRING | $DATE_STRING"