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|
#!/bin/sh
tmp="$(mktemp)"
red="$(printf '\033[35m')"
blue="$(printf '\033[34m')"
reset="$(printf '\033[0m')"
underline="$(printf '\033[4m')"
bold="$(printf '\033[1m')"
THISDIR="$(dirname "$(readlink -f "$0")")"
# schedule file
SCHEDULE="$THISDIR/schedule"
# blocks directory
BLOCKS="$THISDIR/blocks"
die () { >&2 printf "%s" "$@"; exit 1; }
log () { >&2 printf '%s' "$@"; }
logn () { >&2 printf '%s\n' "$@"; }
cleanup () { rm -f "$tmp"; }
trap cleanup EXIT
read_char ()
{
old_stty_cfg=$(stty -g)
stty raw -echo
dd ibs=1 count=1 2> /dev/null
stty "$old_stty_cfg"
}
edit_schedule ()
{
while true
do
char="$(read_char)"
case "$char" in
q) exit ;;
a) add_block ;;
# new or from save
d) delete_block ;;
'') ;;
*) printf "%s" "$char"
esac
done
}
# adds NOW to the schedule and gets its line number
# $1: schedule file
get_now ()
{
fake="$(date +%R)\tZZZZZZZZZZZZZZZZ - NOW"
sed "\$a $fake" "$1" |
sort -g |
awk "/^$fake/ {print NR}"
}
# prints schedule in a nice format
# $1: schedule file
# $2: blocks dir
print_schedule ()
{
now="$(get_now "$1")"
clear
i=1
while read -r line
do
[ "$i" -lt "$((now-1))" ] && i=$((i+1)) && continue
i=$((i+1))
# Colors
if [ "$i" -lt "$now" ]
then
printf "%s" "${reset}${red}"
elif [ "$i" -eq "$now" ]
then
printf "%s" "${reset}${bold}"
else
printf "%s" "${reset}${blue}"
fi
block_file="$2/$(printf "%s" "$line" | cut -f2)"
block_time="$(printf "%s" "$line" | cut -f1)"
# markup
printf "%s\n" "$block_time"
sed 's/.*/│&/' "$block_file"
# printf '\n'
done < "$1"
printf '%s' "${reset}"
}
# $1: schedule file
# $2: blocks dir
view_schedule()
{
trap "break" INT
prev_now="$(get_now "$1")"
print_schedule "$1" "$2"
while true
do
now="$(get_now "$1")"
# Refresh when new block
if [ "$prev_now" -ne "$now" ]
then
print_schedule "$1" "$2"
prev_now="$now"
herbe "_shdul" "$(awk "NR==$((now-1)) {print \$2}" "$1")"
# Align with clock
sleep "$((60-$(date +%-S)))s"
else
sleep 1m
fi
done
clear
}
main ()
{
echo $$ > "$THISDIR/.scheduler.pid"
view_schedule "$SCHEDULE" "$BLOCKS"
while true
do
printf ':'
char="$(read_char)"
case "$char" in
h) cat <<-EOF
h help
v view schedule
s edit schedule mode
q exit
EOF
;;
l) clear ;;
v) view_schedule "$SCHEDULE" "$BLOCKS" ;;
s) edit_schedule ;;
q) exit ;;
'') ;;
*) printf "%s" "$char"
esac
done
}
main
|
