#!/bin/bash

# Change to the directory with the files
cd /mnt/sda/OpenDlign-Datasets/shapenet/depth_align_img/

# Directory where the subdirectories will be created
base_dir=$(pwd)

# Maximum number of files per directory
max_files_per_dir=10000

# Create a counter to keep track of subdirectory number
dir_counter=1

# Array to hold files
files=(*)

# Total number of files
total_files=${#files[@]}

# Loop through all files and move them to appropriate subdirectories
for (( i=0; i<$total_files; i+=$max_files_per_dir )); do
    # Create new subdirectory
    new_dir="${base_dir}/part${dir_counter}"
    mkdir -p "${new_dir}"

    # Compute the slice of files to move
    # Bash doesn't handle large arrays well, so we process them in chunks
    (( slice_end=i+max_files_per_dir-1 ))
    if [ $slice_end -ge $total_files ]; then
        slice_end=$total_files
    fi

    # Move files to new directory
    echo "Moving files ${i} to ${slice_end} to ${new_dir}"
    mv "${files[@]:$i:$max_files_per_dir}" "${new_dir}"

    # Increment the directory counter
    dir_counter=$((dir_counter+1))
done

echo "All files have been moved into subdirectories."