#!/usr/bin/zsh

prompt_end="∣%F{25}${PROMPT_FST}%B%F{26}${PROMPT_SND}%B%f "
neg_user_pretok="${PROMPT_LHS}%f"

[[ ${UID} -ne 0 ]] && _neg_promptcolor="${TILDA_COLOR}" && _neg_user_pretoken="${MAIN_COLOR}${PROMPT_LHS}%f"
[[ ${UID} -ne 0 ]] && _neg_promptcolor="${TILDA_COLOR}" && _neg_user_token="${MAIN_COLOR}${PROMPT_RHS}${prompt_end}"

setopt sh_word_split
local _neg_dyn_pwd=""
local _neg_full_path="$(pwd)"
local _neg_tilda_path=${_neg_full_path/${HOME}/\~}
# write the home directory as a tilda
[[ ${_neg_tilda_path[2,-1]} == "/" ]] && _neg_tilda_path=${_neg_tilda_path[2,-1]}
# otherwise the first element of split_path would be empty.
local _neg_forwards_in_tilda_path=${_neg_tilda_path//[^["\/"]/}
# remove everything that is not a "/"
local _neg_number_of_elements_in_tilda_path=$(( $#_neg_forwards_in_tilda_path + 1 ))
# we removed the first forward slash, so we need one more element than the number of slashes
local _neg_saveIFS="${IFS}"
IFS="/"
local _neg_split_path=(${_neg_tilda_path})
local _neg_start_of_loop=1
local _neg_end_of_loop=${_neg_number_of_elements_in_tilda_path}
for i in {$_neg_start_of_loop..$_neg_end_of_loop}; do
    if [[ $i == $_neg_end_of_loop ]]; then
        _neg_to_be_added=$_neg_split_path[i]'/'
        _neg_dyn_pwd=${_neg_dyn_pwd}${_neg_to_be_added}
    else
        _neg_to_be_added=${_neg_split_path[i]}
        _neg_to_be_added=${_neg_to_be_added}"%F{4}/%F{7}"
        # _neg_to_be_added=$_neg_to_be_added[1,1]'/'
        _neg_dyn_pwd=${_neg_dyn_pwd}${_neg_to_be_added}
    fi
done
unsetopt sh_word_split
IFS=${_neg_saveIFS}
[[ ${_neg_full_path/${HOME}/\~} != ${_neg_full_path} ]] && _neg_dyn_pwd=${_neg_dyn_pwd/\/~/~}
# remove the slash in front of ${HOME}
neg_prompt="%F${_neg_promptcolor}${_neg_dyn_pwd[0,-2]}%F{0}$_neg_user_token%b%k%f"
builtin print "${neg_user_pretok}%f%40<..<${neg_prompt}"