Build this indexes:

• file path -> sha-1
• sha-1 -> file path[s?]
• sha-1 -> meta // not sure about this index

• add dnd for upload files
• add handle for upload files
• join them together
• ...
• profit!

add watcher (use https://github.com/paulmillr/chokidar) for generating meta information file in directory env.INFO_ROOT, meta file name === shome_hash_fn(file content).meta.yml, format - yaml

processed files also rename to shome_hash_fn(file content).(ext)

hash_fn can be md5 or sha-1, for
sha-1 we can use builtin library, see https://stackoverflow.com/questions/6984139/how-can-i-get-the-sha1-hash-of-a-string-in-node-js and https://stackoverflow.com/a/69399958:

const crypto = this.crypto || require('crypto').webcrypto;

const sha1sum = async (message) => {
  const encoder = new TextEncoder()
  const data = encoder.encode(message)
  const hashBuffer = await crypto.subtle.digest('SHA-1', data)
  const hashArray = Array.from(new Uint8Array(hashBuffer));                     // convert buffer to byte array
  const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join(''); // convert bytes to hex string
  return hashHex;
}