fzf-vcal/src/main.sh
2025-06-05 23:02:25 +02:00

300 lines
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Executable File

#!/bin/sh
set -eu
# TODO: Make sensitive to failures. I don't want to miss appointments!
# TODO Ensure safe use of delimiters
err() {
echo "$1" >/dev/tty
}
if [ -z "${FZF_VCAL_USE_EXPORTED:-}" ]; then
# Read configuration
CONFIGFILE="$HOME/.config/fzf-vcal/config"
if [ ! -f "$CONFIGFILE" ]; then
err "Configuration '$CONFIGFILE' not found."
exit 1
fi
# shellcheck source=/dev/null
. "$CONFIGFILE"
if [ -z "${ROOT:-}" ] || [ -z "${SYNC_CMD:-}" ] || [ -z "${COLLECTION_LABELS:-}" ]; then
err "Configuration is incomplete."
exit 1
fi
export ROOT
export SYNC_CMD
export COLLECTION_LABELS
# Tools
if command -v "fzf" >/dev/null; then
FZF="fzf"
else
err "Did not find the command-line fuzzy finder fzf."
exit 1
fi
export FZF
if command -v "uuidgen" >/dev/null; then
UUIDGEN="uuidgen"
else
err "Did not find the uuidgen command."
exit 1
fi
export UUIDGEN
if command -v "bat" >/dev/null; then
CAT="bat"
elif command -v "batcat" >/dev/null; then
CAT="batcat"
fi
CAT=${CAT:+$CAT --color=always --style=numbers --language=md}
CAT=${CAT:-cat}
export CAT
### AWK SCRIPTS
AWK_LINES=$(
cat <<'EOF'
@@include src/awk/lines.awk
EOF
)
export AWK_LINES
AWK_MERGE=$(
cat <<'EOF'
@@include src/awk/merge.awk
EOF
)
export AWK_MERGE
AWK_PARSE=$(
cat <<'EOF'
@@include src/awk/parse.awk
EOF
)
export AWK_PARSE
AWK_WEEKVIEW=$(
cat <<'EOF'
@@include src/awk/weekview.awk
EOF
)
export AWK_WEEKVIEW
AWK_DAYVIEW=$(
cat <<'EOF'
@@include src/awk/dayview.awk
EOF
)
export AWK_DAYVIEW
### END OF AWK SCRIPTS
FZF_VJOUR_USE_EXPORTED="yes"
export FZF_VJOUR_USE_EXPORTED
fi
__load_approx_data() {
find "$ROOT" -type f -name '*.ics' -print0 |
xargs -0 -P0 \
awk \
-v collection_labels="$COLLECTION_LABELS" \
"$AWK_LINES"
}
__load_weeks() {
dates=$(awk -F'|' '{ print $2; print $3 }' "$APPROX_DATA_FILE")
file_dates=$(mktemp)
echo "$dates" | date --file="/dev/stdin" +"%s" >"$file_dates"
awk "$AWK_MERGE" "$file_dates" "$APPROX_DATA_FILE"
rm "$file_dates"
}
__show_day() {
weeknr=$(date -d "$DISPLAY_DATE" +"%s")
weeknr=$(((weeknr - 259200) / 604800)) # shift, because epoch origin is a Thursday
files=$(grep "^$weeknr " "$WEEKLY_DATA_FILE" | cut -d " " -f 2-)
# Find relevant files in list of week files
sef=$({
set -- $files
for file in "$@"; do
file="$ROOT/$file"
awk \
-v collection_labels="$COLLECTION_LABELS" \
"$AWK_PARSE" "$file"
done
})
if [ -n "$sef" ]; then
today=$(date -d "$DISPLAY_DATE" +"%D")
sef=$(echo "$sef" | while IFS= read -r line; do
set -- $line
starttime="$1"
shift
endtime="$1"
shift
fpath="$1"
shift
description=$(echo "$*" | sed 's/|/:/g') # we will use | as delimiter
#
daystart=$(date -d "$today 00:00:00" +"%s")
dayend=$(date -d "$today 23:59:59" +"%s")
line=""
if [ "$starttime" -gt "$daystart" ] && [ "$starttime" -lt "$dayend" ]; then
s=$(date -d "@$starttime" +"%H:%M")
elif [ "$starttime" -le "$daystart" ] && [ "$endtime" -gt "$daystart" ]; then
s="00:00"
else
continue
fi
if [ "$endtime" -gt "$daystart" ] && [ "$endtime" -lt "$dayend" ]; then
e=$(date -d "@$endtime" +"%H:%M")
elif [ "$endtime" -ge "$dayend" ] && [ "$starttime" -lt "$dayend" ]; then
e="00:00"
else
continue
fi
echo "$s|$e|$fpath|$description"
done)
fi
GREEN="\033[1;32m"
OFF="\033[m"
echo "|🗓️ $GREEN $(date -d "$DISPLAY_DATE" +"%a %e %b %Y")$OFF"
echo ""
(
echo "$sef"
seq 8 18 | sort -n
) | awk "$AWK_DAYVIEW"
}
__list() {
weeknr=$(date -d "$DISPLAY_DATE" +"%s")
weeknr=$(((weeknr - 259200) / 604800)) # shift, because epoch origin is a Thursday
files=$(grep "^$weeknr " "$WEEKLY_DATA_FILE" | cut -d " " -f 2-)
dayofweek=$(date -d "$DISPLAY_DATE" +"%u")
delta=$((1 - dayofweek))
startofweek=$(date -d "$DISPLAY_DATE -$delta days" +"%D")
# loop over files
sef=$({
set -- $files
for file in "$@"; do
file="$ROOT/$file"
awk \
-v collection_labels="$COLLECTION_LABELS" \
"$AWK_PARSE" "$file"
done
})
if [ -n "$sef" ]; then
sef=$(echo "$sef" | while IFS= read -r line; do
set -- $line
starttime="$1"
shift
endtime="$1"
shift
#fpath="$1"
shift
description="$*"
for i in $(seq 0 7); do
daystart=$(date -d "$startofweek +$i days 00:00:00" +"%s")
dayend=$(date -d "$startofweek +$i days 23:59:59" +"%s")
if [ "$starttime" -gt "$daystart" ] && [ "$starttime" -lt "$dayend" ]; then
s=$(date -d "@$starttime" +"%H:%M")
s="$s -"
elif [ "$starttime" -le "$daystart" ] && [ "$endtime" -gt "$daystart" ]; then
s="00:00 -"
else
continue
fi
if [ "$endtime" -gt "$daystart" ] && [ "$endtime" -lt "$dayend" ]; then
e=$(date -d "@$endtime" +"%H:%M")
e="- $e"
elif [ "$endtime" -ge "$dayend" ] && [ "$starttime" -lt "$dayend" ]; then
e="- 00:00"
else
continue
fi
echo "$i $s$e >$description"
done
done)
fi
sef=$({
echo "$sef"
seq 0 7
} | sort -n)
echo "$sef" | awk -v startofweek="$startofweek" "$AWK_WEEKVIEW"
#seq -f "$startofweek +%g days" 0 6 |
# LC_ALL=c xargs -I {} date -d "{}" +"%a %e %b %Y"
}
if [ -z "${APPROX_DATA_FILE:-}" ]; then
APPROX_DATA_FILE=$(mktemp)
__load_approx_data >"$APPROX_DATA_FILE"
export APPROX_DATA_FILE
fi
if [ -z "${WEEKLY_DATA_FILE:-}" ]; then
WEEKLY_DATA_FILE=$(mktemp)
__load_weeks >"$WEEKLY_DATA_FILE"
export WEEKLY_DATA_FILE
fi
if [ "${1:-}" = "--day" ]; then
DISPLAY_DATE="$2"
echo "Jumping to day $DISPLAY_DATE!"
selection=$(
__show_day |
$FZF \
--reverse \
--ansi \
--no-sort \
--no-input \
--delimiter='|' \
--with-nth='{2}' \
--accept-nth='{1}' \
--bind="backspace:first+accept"
)
if [ -n "$selection" ]; then
fpath="$ROOT/$selection"
fi
fi
if [ "${1:-}" = "--date" ]; then
DISPLAY_DATE="$2"
echo "Jumping to date $2!"
fi
DISPLAY_DATE=${DISPLAY_DATE:-today}
DISPLAY_DATE=$(date -d "$DISPLAY_DATE" +"%D")
DISPLAY_DATE_PREV=$(date -d "$DISPLAY_DATE -1 week" +"%D")
DISPLAY_DATE_NEXT=$(date -d "$DISPLAY_DATE +1 week" +"%D")
selection=$( (
cat "$APPROX_DATA_FILE"
yes " " | head -n 50
__list
) |
$FZF \
--tac \
--no-sort \
--no-hscroll \
--ellipsis='' \
--delimiter='|' \
--with-nth='{4}' \
--accept-nth=1,2 \
--no-info \
--ansi \
--no-clear \
--bind="ctrl-p:become($0 --date '$DISPLAY_DATE_PREV')" \
--bind="ctrl-n:become($0 --date '$DISPLAY_DATE_NEXT')" \
--bind="ctrl-l:become($0)")
if [ -z "$selection" ]; then
rm "$WEEKLY_DATA_FILE" "$APPROX_DATA_FILE"
return 0
fi
sign=$(echo "$selection" | cut -d '|' -f 1)
startdate=$(echo "$selection" | cut -d '|' -f 2)
if [ "$sign" = "~" ]; then
exec $0 --date "$startdate"
else
exec $0 --day "$startdate"
fi
echo "Going to end..."
echo "$selection"
echo "STOPPING NOW"