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#!/bin/sh
REMOTE_HOST="${QUEUE_REMOTE_HOST:-lex-queue}"
REMOTE_FIFO="${QUEUE_REMOTE_FIFO:-/tmp/job_queue}"
TARGET_DIR="${QUEUE_TARGET_DIR:-/home/sadeep/lex}"
# Ensure the FIFO exists
ssh -n "$REMOTE_HOST" "
fuser -k \"$REMOTE_FIFO\" 2>/dev/null
test -p \"$REMOTE_FIFO\" || mkfifo -m 0600 \"$REMOTE_FIFO\"
" || {
echo "[$(date '+%H:%M:%S')] ERROR: Failed to reach remote host or prepare FIFO" >&2
exit 1
}
echo "[$(date '+%H:%M:%S')] Listening to remote FIFO '$REMOTE_FIFO' on $REMOTE_HOST..."
while true; do
msg=$(ssh -n "$REMOTE_HOST" "head -n 1 \"$REMOTE_FIFO\"")
[ -z "$msg" ] && continue
# Log formatted line capped at 72 chars
log_line="[$(date '+%H:%M:%S')] Processing message: ${msg}"
if [ ${#log_line} -gt 72 ]; then
printf "[%s] Processing message: %.38s...\n" "$(date '+%H:%M:%S')" "$msg"
else
echo "$log_line"
fi
first_word=$(echo "$msg" | awk '{print $1}')
if [ -z "$first_word" ]; then
echo "[$(date '+%H:%M:%S')] ERROR: Invalid first word."
continue
fi
target_file="${TARGET_DIR}/${first_word}.txt"
# Process payload locally with ./lex and stream output back over SSH
if ./lex "$msg" 2>/dev/null | fold -s -w 72 | ssh "$REMOTE_HOST" "cat > \"$target_file\"" 2>/dev/null; then
echo "[$(date '+%H:%M:%S')] OK: Saved to $target_file"
else
echo "[$(date '+%H:%M:%S')] ERROR: Failed processing '$first_word'"
fi
done
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