#!/bin/bash

date_format='%F %H:%M'

tmp_dir=$(mktemp -d)
trap 'rm -rf --one-file-system "${tmp_dir:?}"' EXIT

script -qefc '/usr/bin/khal list '"$(
  date +"${date_format}"
)"' '"$(
  date +"${date_format}" -d@$((
    $(date +%s)+6*24*60*60
  ))
)"' 2>'"${tmp_dir}"'/stderr' /dev/null </dev/null >"${tmp_dir}"/stdout

/usr/src/skripte/ansi-color-to-conky-color/ansi-color-to-conky-color "$@" \
< "${tmp_dir}/stdout" \
| sed '
  s@\xe2\x9f\xb3@@g
  s@\r$@@
' \
| tr -d '\r' \
| sed '
  :a
    $!N
    s/\([^}]\)\s*\n/\1 /
    ta
  P
  D
' \
| sed '
  s/\(\(^\|}\)[^{}]\{47\}\)[^{}]\+\${/\1...${/
'

sed '
  s@^\(.\{47\}\)....*$@\1...@
  s@#@\\#@g
' "${tmp_dir}/stderr" \
| tac \
| sed -n '
  $ {
    p
    d
  }
  1,3 p
' \
| tac \
| sed '
  1 s@^@${color red}@
  $ s@$@${color}@
'