#!/bin/bash

DOWNLOADS='/home/anon/downloads'
SORTED='/home/anon/stuff/dlsorted'

file -N --mime-type --print0 "$DOWNLOADS"/* |
while read -r -d $'\0' path && read -r mime;
do
    if ! [ -f "$path" ]
    then
        continue
    fi

    filename="${path##*/}"

    if ! [[ $mime =~ ^\:\ (.[a-z]*)/ ]]
    then
        echo "doesn't parse file output"
        exit 1
    fi

    mime=${BASH_REMATCH[1]}
    mkdir -p "$SORTED/$mime"
    if ! [ $? == 0 ]
    then
        exit 1
    fi

    dest="$SORTED/$mime"

    if [ -e "$SORTED/$mime/$filename" ]
    then
        if ! [[ $filename =~ ^(.[^\.]*)(.*) ]]
        then
            echo "doesn't parse filename"
            exit 1
        fi

        name=${BASH_REMATCH[1]}
        ext=${BASH_REMATCH[2]}

        for (( num=1; ; num++ ))
        do
            dest="$dest/${name}_($num)$ext"
            if ! [ -e "$dest" ]
            then
                break
            fi
        done
    fi

    mv "$DOWNLOADS/$filename" "$dest"
done

exit 0