#!/bin/bash

declare -gr SOURCEDIR="/z/movienight"
declare -gr TARGETDIR="/home/""$(whoami)""/win_usr/Desktop"

if [ ! -d "$SOURCEDIR" ]; then
  echo " !!! No such directory: ""$SOURCEDIR" >&2
  exit 1
fi

declare -gr CP="rsync --ignore-existing -P"
declare -r DAYSTOGO="$(expr 6 - "$(date +%u)")"
declare -r MOVIEDATE="$(date +%Y.%m.%d -d "+""$DAYSTOGO"" days")"

echo " *** Finding the movie for ""$MOVIEDATE"" ..."

find "$SOURCEDIR" -type f -name "$MOVIEDATE"" - *.*" -print0 | {
  declare -g COUNT=0

  while read -d '' SOURCEFILE; do
    if [ ! -f "$SOURCEFILE" ]; then
      echo " !!! Source file is missing: ""$SOURCEFILE" >&2
    else
      declare TARGETFILE="$TARGETDIR""/""$(basename -- "$SOURCEFILE")"
      if [ -f "$TARGETFILE" ]; then
        echo " !!! Target file already exists: ""$TARGETFILE" >&2
      else
        echo " *** Starting a copy of ""$SOURCEFILE"" to ""$TARGETFILE"" ..."
        $CP "$SOURCEFILE" "$TARGETFILE"
      fi
      ((COUNT+=1))
    fi
  done

  if [ 0 -eq "$COUNT" ]; then
    echo " !!! No movie found!" >&2
    exit 1
  fi
}