From 98213f28354040d749c7610421cac9e579e3bb4d Mon Sep 17 00:00:00 2001
From: Michael Grote <michael.grote@posteo.de>
Date: Thu, 17 Feb 2022 18:19:54 +0100
Subject: [PATCH] =?UTF-8?q?script:=20countdown=20hinzugef=C3=BCgt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 countdown | 185 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100755 countdown

diff --git a/countdown b/countdown
new file mode 100755
index 0000000..a264d93
--- /dev/null
+++ b/countdown
@@ -0,0 +1,185 @@
+#!/bin/bash
+# geklaut vom linuxhotel.de
+LANG=C
+export BUILD="2.9.64"
+set -o nounset
+
+function banner()
+{
+    local -A b
+    local -i l
+    local -i i
+    
+    b[00]='  000'
+    b[01]=' 0   0'
+    b[02]='0 0   0'
+    b[03]='0  0  0'
+    b[04]='0   0 0'
+    b[05]=' 0   0'
+    b[06]='  000'
+    b[07]=''
+    b[10]='   1'
+    b[11]='  11'
+    b[12]=' 1 1'
+    b[13]='   1'
+    b[14]='   1'
+    b[15]='   1'
+    b[16]=' 11111'
+    b[17]=''
+    b[20]=' 22222'
+    b[21]='2     2'
+    b[22]='      2'
+    b[23]=' 22222'
+    b[24]='2'
+    b[25]='2'
+    b[26]='2222222'
+    b[27]=''
+    b[30]=' 33333'
+    b[31]='3     3'
+    b[32]='      3'
+    b[33]=' 33333'
+    b[34]='      3'
+    b[35]='3     3'
+    b[36]=' 33333'
+    b[37]=''
+    b[40]='4'
+    b[41]='4    4'
+    b[42]='4    4'
+    b[43]='4444444'
+    b[44]='     4'
+    b[45]='     4'
+    b[46]='     4'
+    b[47]=''
+    b[50]='5555555'
+    b[51]='5'
+    b[52]='5'
+    b[53]=' 55555'
+    b[54]='      5'
+    b[55]='5     5'
+    b[56]=' 55555'
+    b[57]=''
+    b[60]=' 66666'
+    b[61]='6     6'
+    b[62]='6'
+    b[63]='666666'
+    b[64]='6     6'
+    b[65]='6     6'
+    b[66]=' 66666'
+    b[67]=''
+    b[70]='7777777'
+    b[71]='7    7'
+    b[72]='    7'
+    b[73]='   7'
+    b[74]='  7'
+    b[75]='  7'
+    b[76]='  7'
+    b[77]=''
+    b[80]=' 88888'
+    b[81]='8     8'
+    b[82]='8     8'
+    b[83]=' 88888'
+    b[84]='8     8'
+    b[85]='8     8'
+    b[86]=' 88888'
+    b[87]=''
+    b[90]=' 99999'
+    b[91]='9     9'
+    b[92]='9     9'
+    b[93]=' 999999'
+    b[94]='      9'
+    b[95]='9     9'
+    b[96]=' 99999'
+    b[97]=''
+    b[:0]='   :'
+    b[:1]='  :::'
+    b[:2]='   :'
+    b[:3]=''
+    b[:4]='   :'
+    b[:5]='  :::'
+    b[:6]='   :'
+    b[:7]=''
+    for ((l=0;l<8;l++)); do
+      for ((i=0;i<${#1};i++)); do
+        printf "%-8.8s" "${b[${1:i:1}$l]}"
+      done
+      echo
+    done
+}
+
+function usage()
+{
+    local base="$(basename $0)"
+    echo "Build: $BUILD"
+    echo "Usage: $base HH:MM" >&2
+    echo "       $base +minutes" >&2
+    echo "       $base +0" >&2
+}
+
+if [ $# -ne 1 ]; then
+    usage
+    exit 1
+elif [[ $1 =~ ^([01][0-9]|2[0-3]):[0-5][0-9]$ ]]; then
+    dateHHMMSS="${1}:00"
+elif [[ $1 =~ ^\+[0-9]+ ]]; then
+    dateHHMMSS=$(date -d "now $1 minutes" +%H:%M:%S)
+else
+    usage
+    exit 2
+fi
+
+clear
+declare -i diff
+declare -i initDiff=$(($(date -d "$dateHHMMSS" +%s)-$(date +%s)))
+((initDiff == 0)) && initDiff=1
+declare -i lenOutDate
+declare -i lenOutTime
+declare outDate
+declare outTime
+declare -r spaces="                                       "
+declare -r pegel="#####################################"
+declare -ri lenPegel=${#pegel}
+declare -ri lenSpaces=${#spaces}
+declare -i posPegel
+declare -i pad
+
+while true; do
+    key=""
+    diff=$(($(date -d "$dateHHMMSS" +%s)-$(date +%s)))
+    
+    outDate=$(date +"%Y-%m-%d %H:%M:%S")
+    outTime="${dateHHMMSS} (${diff})"
+    lenOutDate=${#outDate}
+    lenOutTime=${#outTime}
+    
+    tput home
+    pad=$((lenSpaces-lenOutDate))
+    echo "${spaces:0:$((pad/2))}${outDate}${spaces:0:$((pad/2))} "
+    pad=$((lenSpaces-lenOutTime))
+    echo -e "${spaces:0:$((pad/2))}${outTime}${spaces:0:$((pad/2))} "
+    posPegel=$((($initDiff-$diff)*$lenPegel/$initDiff))
+
+    if (($diff >= 0 )); then
+        echo "[${pegel:0:$posPegel}${spaces:$((posPegel+2))}]"
+    else
+        echo "$spaces"
+    fi
+
+    
+    if (( $diff ==  0 )); then
+        tput setaf 0
+    elif (( $diff < 0 )); then
+        ((diff=-diff))
+        tput setaf 1
+    elif (( $diff <  60 )); then
+        tput setaf 4
+    else
+        tput setaf 2
+    fi
+
+    echo
+    banner $(date -d @$diff +%M:%S)
+    tput setaf 0
+    echo -ne "\r               \r" && 
+    read -s -t 1 -n 1 && read -s -t 3 -n 1 -p "sure? (-/n) " key &&  [ "$key" != "n" ] && break
+done
+echo -en "\r"