#!/bin/bash
# banner-to-dotmatrix.sh - Convert image to LQ-350 full-width ESC/P2 raster

INPUT_FILE="${1}"
OUTPUT_BIN="${INPUT_FILE%.*}-lq350.bin"

if [ -z "${INPUT_FILE}" ]; then
    echo "Usage: ${0} input.jpg"
    exit 1
fi

echo ${INPUT_FILE}
echo ${OUTPUT_BIN}

convert ${INPUT_FILE} -resize 2650x -density 360x180 -monochrome -dither FloydSteinberg -compress none \
    pbm:- | pbmtoescp2 -resolution=360 > "$OUTPUT_BIN"

# Optional: prepend ESC/P2 reset
printf '\x1B\x40' > init.bin
cat init.bin "$OUTPUT_BIN" > print-ready.bin

lp -d EPSON_LQ-350 -o raw print-ready.bin

# Clean up temp files (uncomment if desired)
# rm init.bin print-ready.bin