#!/bin/bash

set -e

. ~/.cadaver_cals

tempdir=$(mktemp -d)
tempdir=$(readlink -f "$tempdir")
trap "/bin/rm -f \"$tempdir\"/*.ics; rmdir \"$tempdir\"" QUIT INT EXIT

for file in "$@"; do
    bevents=($(grep -hn BEGIN:VEVENT "$file" | awk -F: '{print $1}'))
    eevents=($(grep -hn END:VEVENT "$file" | awk -F: '{print $1}'))

    ehead=${bevents[0]}
    let "ehead -= 1"

    bfoot=$(wc -l "$file")
    let "bfoot -= ${eevents[-1]}"

    for (( i=0; i < ${#bevents[@]}; i++)); do
        head -n $ehead "$file" > "$file-$i.ics";
        sed -n ${bevents[$i]},${eevents[$i]}p "$file" >> "$file-$i.ics";
        tail -n $bfoot "$file" >> "$file-$i.ics";
    done
done

(cd "$tempdir";
cadaver $CADAVER_CAL << EOC
  mput *.ics
  exit
EOC
rm *.ics;
)
rmdir $tempdir;
trap - QUIT INT EXIT