#!/bin/sh
#modify from dwm-bar
#origin source:https://github.com/joestandring/dwm-bar
count=0
INTERFACE=$(ip addr|grep UP|grep -v lo|awk -F: '{print $2}'|awk '$1=$1'|head -n 1)
dwm_loadavg()
{
  printf " | %s ]" "$(cut -d " " -f 1,2,3 /proc/loadavg)"
}
dwm_tor()
{
    NUM=$(ss -tunp|grep -E "127.0.0.1:9150|127.0.0.1:9050|127.0.0.1:9151"|wc -l)
    if [ $NUM -ne 0 ]; then
        printf "[ TOR:ON ]"
    else
        printf "[ TOR:OFF ]"
    fi
}

dwm_storage()
{
    DATA=$(free -h | awk '(NR==2){ print $3"/"$4 }')
    printf "[ MEM:%s ]" ${DATA}
}

dwm_upspeed(){
  T1=$(cat /sys/class/net/${INTERFACE}/statistics/tx_bytes)
  sleep 1
  T2=$(cat /sys/class/net/${INTERFACE}/statistics/tx_bytes)
  TBPS=$(expr $T2 - $T1)
  TKBPS=$(expr $TBPS / 1024)
  printf  "[ ↑${TKBPS}Kb"
}
dwm_downspeed()
{
    R1=$(cat /sys/class/net/${INTERFACE}/statistics/rx_bytes)
    sleep 1
    R2=$(cat /sys/class/net/${INTERFACE}/statistics/rx_bytes)
    RBPS=$(expr $R2 - $R1)
    RKBPS=$(expr $RBPS / 1024)
    printf  "|↓${RKBPS}Kb ]"
}
dwm_dns()
{
   STATUS=$(cat /etc/resolv.conf|grep '127.0.0.1'|wc -l)
   if [ ${STATUS} == 1 ];then
       printf "[ SDNS|ON ]"
   else
       printf "[ SDNS|OFF ]"
   fi
}
dwm_alsa()
{
    STATUS=$(amixer sget Master | tail -n1 | sed -r "s/.*\[(.*)\]/\1/")
    VOL=$(amixer get Master | tail -n1 | sed -r "s/.*\[(.*)%\].*/\1/")
    printf "[ VOL:%s|%s ]" ${VOL} ${STATUS^^}
}
dwm_tasks()
{
  printf "[ TASKS:%s ]" $(ps aux|wc -l)
}

dwm_date()
{
    printf "[ %s %s %s ]" $(date "+%A %Y-%m-%d %H:%M")
}

dwm_weather()
{
      DATA=$(curl --max-time 5 -H "Accept-Language: zh" wttr.in/France?format=%C+%f)
      if [ ${?} == 0 ];then
          export __DWM_BAR_WEATHER__="[ ${DATA} ]"
      elif [ ${__DWM_BAR_WEATHER__} == "" ];then
          export __DWM_BAR_WEATHER__=""
      fi
}


cputemp(){
  t=$(cat /sys/class/thermal/thermal_zone0/temp|cut -b -2)°C
  printf "[ CPU:%s ]" ${t}
}
dwm_weather
while true; do
    if [[ $count < 360 ]]
    then
        count=$((${count}+1))
    else
        dwm_weather
        count=0
    fi 
    lowerbar=""
    lowerbar="$lowerbar$(dwm_date)"
    lowerbar="$lowerbar$(cputemp)"
    lowerbar="$lowerbar$(dwm_storage)"
    lowerbar="$lowerbar$(dwm_upspeed)"
    lowerbar="$lowerbar$(dwm_downspeed)"
    lowerbar="$lowerbar${__DWM_BAR_WEATHER__}"
    lowerbar="$lowerbar$(dwm_alsa)"
    lowerbar="$lowerbar$(dwm_tor)"
    lowerbar="$lowerbar$(dwm_dns)"
    xsetroot -name "$lowerbar"
    sleep 1
done