#!/bin/bash

file="$1"
max_size_mb="${2:-1024}"  # Default to 1024 MB if not specified
dir=$(dirname "$file")
base=$(basename "$file" .smi)
size_bytes=$((max_size_mb * 1024 * 1024))

file_size=$(stat -c%s "$file")

if [ "$file_size" -gt "$size_bytes" ]; then
    if split -C "${max_size_mb}M" --numeric-suffixes=1 --additional-suffix=.smi "$file" "${dir}/${base}.part"; then
        rm "$file"
        echo "Split $file and removed original"
    else
        echo "Error splitting $file. Original file kept."
    fi
else
    echo "$file is smaller than ${max_size_mb}MB, not splitting"
fi