#!/bin/bash

set -eux

## Requires kal-script

##
## More shell configurations (prompt, functions)
##

mkdir -p /etc/prompt

cat <<EOF > /etc/prompt/prompt.1.rc
PROMPT_COMMAND=""
parse_git_branch() {
  ref=\$(git symbolic-ref HEAD 2> /dev/null) || return
  echo -en ' (\033[0;32m'\${ref#refs/heads/}'\033[0m)'
}
export PS1="\[\033[0;37m\][\[\033[1;30m\]\u\[\033[0;37m\]@\[\033[1;30m\]\H\[\033[0;37m\]]-[\[\033[1;34m\]\w\[\033[0;37m\]]\\\$(parse_git_branch)\n\[\033[1;37m\]\\$ \[\033[0;37m\]"
EOF

protect_pre_install() {
    local filename="$1"
    if [ -f "$filename".pre-install ]; then
        cp "$filename".pre-install "$filename"
    else
        if ! [ -e "$filename" ]; then
            touch "$filename"
        fi
        cp "$filename" "$filename".pre-install
    fi
}


protect_pre_install "/root/.bashrc"


if ! type -p fzf; then

    ## Required to get fzf
    case $(lsb_release -is) in
        Debian)
            case $(lsb_release -rs) in
                9|9.*)
                    backports_list="/etc/apt/sources.list.d/backports.list"
                    protect_pre_install /etc/apt/sources.list.d/backports.list
                    echo "deb http://archive.debian.org/debian stretch-backports main" > \
                             "$backports_list"
                    ## Update only this repo:
                    apt-get update -o Dir::Etc::sourcelist="sources.list.d/backports.list" \
                            -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"

                    ;;
            esac
            ;;
    esac

    apt-get install fzf </dev/null
fi

if ! type -p fd-find; then
    if apt-get install fd-find </dev/null; then
        ln -sf "$(which fdfind)" /usr/local/bin/fd
    else
        wget https://github.com/sharkdp/fd/releases/download/v8.2.1/fd_8.2.1_amd64.deb -O /tmp/fd.deb
        dpkg -i /tmp/fd.deb
    fi
fi

if ! [ -e "/usr/share/doc/fzf/examples/key-bindings.bash.orig" ]; then
    ## Use C-f instead of C-t for file insertion
    sed -r -i.orig 's/C-t/C-f/g' /usr/share/doc/fzf/examples/key-bindings.bash
fi

cat <<EOF >> /root/.bashrc

## History management

export HISTCONTROL=ignoreboth
export HISTSIZE=500000
export HISTIGNORE="&:[bf]g:exit:ls:history"
export HISTFILESIZE=
export HISTTIMEFORMAT="%Y-%m-%d %T  "

shopt -s histappend


## Prompt easy management

prompt() {
        prompt_name="prompt.\$1.rc"

        for i in /etc/prompt ~/.prompt; do
                [ -f "\$i/\$prompt_name" ] &&
                        . "\$i/\$prompt_name"
        done
}


## Git log command

function glog() {
    git log --graph --pretty=tformat:%C\(yellow\ normal\)%h%Creset\ %C\(blue\ normal\)%an%Creset\ %s\ %Cgreen%d%Creset -n 20 "\$@"
}

prompt 1

PROMPT_COMMAND='history -a'  ## after prompt setting as it resets it


##
## fzf (apt-get install fzf) and fd (apt-get install fd-find)
##

if [ -e /usr/share/doc/fzf/examples/key-bindings.bash ]; then
    . /usr/share/doc/fzf/examples/key-bindings.bash
fi

if [ -e /usr/share/doc/fzf/examples/completion.bash ]; then
    . /usr/share/doc/fzf/examples/completion.bash
fi

#export FZF_DEFAULT_OPTS="--color 'fg:#bbccdd,fg+:#ddeeff,bg:#111820,preview-bg:#223344,border:#778899'"
export FZF_DEFAULT_COMMAND='fd --type f --hidden --follow --exclude .git'
export FZF_CTRL_T_COMMAND="\$FZF_DEFAULT_COMMAND"


EOF


protect_pre_install "/root/.bash_profile"

cat <<EOF >> /root/.bash_profile

## XXXvlab:
## http://stackoverflow.com/questions/9652126/bashrc-profile-is-not-loaded-on-new-tmux-session-or-window-why
## Including ``.bashrc`` if it exists (tmux don't load bashrc, and bashrc
## don't load profile... so not recursive call)
if [ -f ~/.bashrc ]; then
   . ~/.bashrc
fi

EOF


protect_pre_install /root/.vimrc

cat <<EOF >> /root/.vimrc

syntax on
filetype plugin indent on

"Get the 2-space YAML as the default when hit carriage return after the colon
autocmd FileType yaml,yml setlocal ts=2 sts=2 sw=2 expandtab indentkeys=

set is hlsearch ai ic scs
nnoremap <esc><esc> :nohls<cr>

EOF