#!/bin/bash
while read -r dir
do
    echo "Checking dir '${dir}'..."
    last_file="${dir}/$(ls -ht -- "${dir}/" | grep \.webm\.download_info\.json | head -n1)"
    if [ -z "${last_file}" ]; then
        last_file="${dir}/$(ls -ht -- "${dir}/" | head -n1)"
    fi
    if [ -n "${last_file}" ]; then
        echo "Last modified file is '${last_file}'"
        filetime="$(jq '.info_dict.filetime' -- "${last_file}" )"
        if [ "${filetime}" != "null" ]; then
            last_file_time_formated=$(date -d "@${filetime}" +%Y%m%d%H%M.%S)
            touch -t "${last_file_time_formated}" -- "${dir}"
        else
            touch -r "${last_file}" -- "${dir}"
        fi
    else
        echo "Skipping, no file found in dir"
    fi
done <<< "$(find . -mindepth 1 -maxdepth 1 -type d)"