# vim:ft=zsh ts=4 sw=2 sts=2
# Copyright (C) 2017 Achim D. Brucker, https://www.brucker.ch
#
# LogicalHacking Theme 
# A Agnoster-inspired theme for ZSH
#
# # README
#
# In order for this theme to render correctly, you will need a
# [Powerline-patched font](https://github.com/Lokaltog/powerline-fonts).
# Make sure you have a recent version: the code points that Powerline
# uses changed in 2012, and older versions will display incorrectly,
# in confusing ways.

# Generic function for formatting the working directory - in particular,
# it allows zpresto-style shortening of the full path.
promptpwd() {
    setopt localoptions extendedglob
    
    local current_pwd="${PWD/#$HOME/~}"
    local ret_directory

    if [[ "$current_pwd" == (#m)[/~] ]]; then
        ret_directory="$MATCH"
        unset MATCH
    elif zstyle -m ':lh:module:prompt' pwd-length 'full'; then
        ret_directory=${PWD}
    elif zstyle -m ':lh:module:prompt' pwd-length 'long'; then
        ret_directory=${current_pwd}
    else
        ret_directory="${${${${(@j:/:M)${(@s:/:)current_pwd}##.#?}:h}%/}//\%/%%}/${${current_pwd:t}//\%/%%}"
    fi
    print "$ret_directory"
}


# Define abstract names for the PowerLine symbols          
() {
    local LC_ALL="" LC_CTYPE="en_US.UTF-8"
    PL_BRANCH=$'\ue0a0'   # 
    PL_LN=$'\ue0a1'       # 
    PL_CPADLOCK=$'\ue0a2' # 
    PL_BRARROW=$'\ue0b0'  # 
    PL_RARROW=$'\ue0b1'   # 
    PL_BLARROW=$'\ue0b2'  # 
    PL_LARROW=$'\ue0b3'   # 
}

# Drawing of segments
CURRENT_BG='NONE'

# Begin a segment
# Takes two arguments, background and foreground. Both can be omitted,
# rendering default background/foreground.
prompt_segment() {
    local bg fg
    [[ -n $1 ]] && bg="%K{$1}" || bg="%k"
    [[ -n $2 ]] && fg="%F{$2}" || fg="%f"
    if [[ $CURRENT_BG != 'NONE' && $1 != $CURRENT_BG ]]; then
        echo -n " %{$bg%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR%{$fg%} "
    else
        echo -n "%{$bg%}%{$fg%} "
    fi
    CURRENT_BG=$1
    [[ -n $3 ]] && echo -n $3
}

# End the prompt, closing any open segments
prompt_end() {
    if [[ -n $CURRENT_BG ]]; then
        echo -n " %{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
    else
        echo -n "%{%k%}"
    fi
    echo -n "%{%f%}"
    CURRENT_BG=''
}