#!/bin/bash
#
# Generates a page-break diagnostic file: numbered lines padded with '#' to
# a fixed width, so you can see exactly where a printer's real page length
# and line width limits are instead of guessing from paper geometry.
#
# Usage: ./pagetest.sh [width] [lines]
#   width - characters per line, including the "NNN " prefix (default 64)
#   lines - number of lines to generate (default 100)
#
# Print the result with PRINTER_A4=false in printer.conf (no rotation), so
# the line numbers read straight off the page:
#   ./txt2printr.sh pagetest.txt

dir="$(dirname "$0")"
width="${1:-64}"
lines="${2:-100}"
outfile="$dir/pagetest.txt"

awk -v width="$width" -v lines="$lines" '
    BEGIN {
        for (i = 1; i <= lines; i++) {
            prefix = sprintf("%03d ", i)
            fill = width - length(prefix)
            if (fill < 0) fill = 0
            line = prefix
            for (j = 0; j < fill; j++) line = line "#"
            print line
        }
    }
' > "$outfile"

echo "Wrote $lines lines x $width chars to $outfile"
echo "Print it with: PRINTER_DEV=/dev/lp0 \"$dir/txt2printr.sh\" \"$outfile\""