#!/bin/sh

cleanup() {
    if [ ! -z "$TFILE" ]; then
        rm "$TFILE"
    fi
}

die() {
    echo "$@"
    echo "Aborting"
    cleanup
    exit 1
}

usage() {
    die "Usage: vieet [-r] <eet file> [section]"
}

READONLY=0
EETFILE="$1"
SECTION="$2"
ARGCNT=2

if [ $# -eq 1 ]; then
    if [ "$1" = "-h" ]; then usage; fi
    echo "Available sections:"
    eet -l "$EETFILE"
    exit $?
fi

if [ "$1" = "-r" ]; then
    READONLY=1
    EETFILE=$2
    SECTION=$3
    ARGCNT=3
fi

if [ $# -ne $ARGCNT ]; then
    usage
fi

if [ -z "$EDITOR" ]; then
    die "EDITOR env var must be set."
fi

TFILE=$(mktemp)

if [ $? -ne 0 ]; then
    die "Failed creating tempfile."
fi

# Decode the file
eet -d "$EETFILE" "$SECTION" "$TFILE"

if [ $? -ne 0 ]; then
    die "Failed decoding eet file."
fi

DONE=0

while [ $DONE -ne 1 ]
do
    $EDITOR $TFILE

    if [ $READONLY -eq 1 ]; then break; fi
    eet -e "$EETFILE" "$SECTION" "$TFILE" 1
    if [ $? -ne 0 ]; then
        echo "Failed compiling eet file."
        echo "Press 'Return' to reopen the editor, or ^C to abort."
        read
    else
        DONE=1
    fi
done

cleanup