#!/bin/zsh
over_ssh() {
    if [ -n "${SSH_CLIENT}" ]; then
        return 0
    else
        return 1
    fi
}

if [[ ! -d "$HOME/.zsh" ]]; then
    mkdir -p "$HOME/.zsh"
fi
if [[ ! -d "$HOME/.cache" ]]; then
    mkdir -p "$HOME/.cache"
fi
zstyle ':completion:*' auto-description 'specify: %d'
zstyle ':completion:*' completer _complete _match _approximate
zstyle ':completion:*:match:*' original only
zstyle ':completion:*:approximate:*' max-errors 1 numeric
zstyle ':completion:*:functions' ignored-patterns '_*'
zstyle ':completion:*' format 'Completing %d'
zstyle ':completion:*' group-name ''
zstyle ':completion:*:default' list-colors ${(s.:.)LS_COLORS}
zstyle ':completion:*' list-prompt '%S At %p: Hit TAB for more, or the character to insert %s'
zstyle ':completion:*' matcher-list ''
zstyle ':completion:*' menu select=1
zstyle ':completion:*' select-prompt '%SScrolling active: current selection at %p%s'
zstyle ':completion:*' verbose true
zstyle ':completion:*' rehash true
zstyle :compinstall filename "$HOME/.zshrc"
zstyle ':completion:*' use-cache on
zstyle ':completion:*' cache-path "$HOME/.cache/zsh"

autoload -Uz compinit
autoload colors ; colors
compinit
setopt auto_cd
setopt nobeep
setopt PROMPT_SUBST
setopt extendedGlob

# History
HISTFILE="$HOME/.zsh/histfile"
HISTSIZE=10000
SAVEHIST=10000
setopt completealiases
setopt hist_ignore_dups
setopt hist_ignore_space
setopt interactivecomments
setopt extended_history
setopt append_history
setopt inc_append_history
setopt share_history
if [[ ! -L "$HOME/.histfile" ]];then
    ln -sf "$HOME/.zsh/histfile" "$HOME/.histfile"
fi
# directory stack
DIRSTACKSIZE=20
DIRSTACKFILE="$HOME/.cache/dirstack"
setopt autopushd pushdsilent pushdtohome
setopt pushdignoredups
setopt pushdminus
if [[ -f $DIRSTACKFILE ]] && [[ $#dirstack -eq 0 ]]; then
    dirstack=( ${(f)"$(< $DIRSTACKFILE)"} )
    [[ -d $dirstack[1] ]] && cd $dirstack[1]
fi

# Shell correction
setopt correct

#
bindkey -e
autoload -Uz promptinit
promptinit

# Aliases
case $OSTYPE in
    linux-gnu)
        alias grep='grep --color=auto'
        alias ls='ls --color=auto --human-readable --group-directories-first --classify --almost-all'
        ;;
    freebsd*)
        alias grep='grep --color=auto'
        alias ls='ls -FAGh'
        ;;
    openbsd*)
        alias ls='ls -FAh'
        ;;
esac

# Prompt
if over_ssh && [ -z "${TMUX}" ]; then
    prompt_is_ssh='%F{blue}[%F{red}SSH%F{blue}] '
elif over_ssh; then
    prompt_is_ssh='%F{blue}[%F{253}SSH%F{blue}] '
else
    unset prompt_is_ssh
fi
if [[ ${EUID} == 0 ]] ; then
    PROMPT="%F{red}%n%f@%F{cyan}%m%f ${prompt_is_ssh}%F{yellow}%1~%f %F{red}%# %F{white}"
else
    PROMPT="%F{green}%n%f@%F{cyan}%m%f ${prompt_is_ssh}%F{yellow}%1~%f %F{green}%$$ %F{white}"
fi

# Right Promt
setopt prompt_subst
autoload -Uz vcs_info
zstyle ':vcs_info:*' actionformats \
    '%F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{3}|%F{1}%a%F{5}]%f '
zstyle ':vcs_info:*' formats       \
    '%F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{5}]%f '
zstyle ':vcs_info:(sv[nk]|bzr):*' branchformat '%b%F{1}:%F{3}%r'
zstyle ':vcs_info:*' enable git cvs svn
vcs_info_wrapper() {
  vcs_info
  if [ -n "$vcs_info_msg_0_" ]; then
    echo "%{$fg[grey]%}${vcs_info_msg_0_}%{$reset_color%}$del"
  fi
}
RPROMPT=$'$(vcs_info_wrapper)%F{yellow}[%F{white}%?%F{yellow}]%F{white}'

# Keybindings
bindkey "${terminfo[khome]}" beginning-line
bindkey "${terminfo[kend]}" end-of-line
bindkey "\e[1~" beginning-of-line
bindkey "\e[4~" end-of-line
bindkey "\e[5~" beginning-of-history
bindkey "\e[6~" end-of-history
bindkey "\e[7~" beginning-of-line
bindkey "\e[3~" delete-char
bindkey "\e[2~" quoted-insert
bindkey "\e[5C" forward-word
bindkey "\e[5D" backward-word
bindkey "\e\e[C" forward-word
bindkey "\e\e[D" backward-word
bindkey "\e[1;5C" forward-word
bindkey "\e[1;5D" backward-word
bindkey "\e[8~" end-of-line
bindkey "\eOH" beginning-of-line
bindkey "\eOF" end-of-line
bindkey "\e[H" beginning-of-line
bindkey "\e[F" end-of-line

# zsh syntax highlighting
if [ -d /usr/share/zsh-syntax-highlighting ] ; then
    # Fedora, Debian
    source /usr/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
elif [ -d /usr/share/zsh/plugins/zsh-syntax-highlighting ] ; then
    # Arch-Linux
    source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
elif [ -d /usr/local/share/zsh-syntax-highlighting ] ; then
    # FreeBSD
    source /usr/local/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
fi

# Source modules
if [ ! -d "$HOME/.zsh/modules" ] ; then
    mkdir -p "$HOME/.zsh/modules"
fi
to_source=($(find "$HOME/.zsh/modules" -name '*.zsh' -print | tr '\n' ' '))
for module in ${to_source}; do
    source "$module"
done