# -*- shell-script -*-
#
# Fichier d'initialisation de bash commun

# Pour les shells non interactif (sous emacs, avec rcp, ...)
[ -z "$PS1" -o "$TERM" = dumb ] && return

# +-------+
# | Hacks |
# +-------+

COLUMNS=$(tput cols)
shopt -s checkwinsize

# +-------------------------+
# | Customizations diverses |
# +-------------------------+

# On ne sauve pas les lignes dupliqués dans l'historique
export HISTCONTROL=ignoredups

# Convenience
[[ -x /usr/bin/lesspipe ]] && eval "$(lesspipe)"
if [[ $(uname) == Linux ]]; then
    eval "$(dircolors)"
#    alias ls='ls --color -FC'
fi

# Complétion
[ -f /etc/bash_completion ] && . /etc/bash_completion

# +----------------------+
# | Génération du prompt |
# +----------------------+

# Génération de la ligne de "-"
function gen_minus_line
{
    local i

    MINUS_LINE=""
    SAVE_COLUMNS=$COLUMNS

    for ((i = COLUMNS-24; i>0; i--)); do
	MINUS_LINE=$MINUS_CHAR$MINUS_LINE
    done
}

# Génération du prompt après chaque commande
function prompt_command
{
    (( SAVE_COLUMNS == COLUMNS )) || gen_minus_line

    local pwd=${PWD/#$HOME/'~'}

    if (( ${#pwd} + 27 > COLUMNS )); then
 	if (( COLUMNS >= 33 )); then
	    PS1=$TITLE'\[\e[1;32m\]'$MINUS_CHAR'( \[\e[1;35m\]\D{%H:%M:%S}\[\e[1;32m\] )'$MINUS_CHAR'< \[\e[1;33m\]..'${pwd:${#pwd}+29-COLUMNS}'\[\e[1;32m\] >${MINUS_LINE:0:4-${#?}}[ \[\e[1;$((31+($?==0)*6))m\]$?\[\e[1;32m\] ]'$MINUS_CHAR'\n\[\e[1;31m\]\u\[\e[1;32m\]@\[\e[1;34m\]\h\[\e[1;32m\]% \[\e[0m\]'
	else
	    PS1=$TITLE'\[\e[1;32m\]'$MINUS_CHAR'( \[\e[1;35m\]\D{%H:%M:%S}\[\e[1;32m\] )'$MINUS_CHAR'< \[\e[1;33m\]'$pwd'\[\e[1;32m\] >'$MINUS_CHAR'[ \[\e[1;$((31+($?==0)*6))m\]$?\[\e[1;32m\] ]'$MINUS_CHAR'\n\[\e[1;31m\]\u\[\e[1;32m\]@\[\e[1;34m\]\h\[\e[1;32m\]% \[\e[0m\]'
	fi
    else
	PS1=$TITLE'\[\e[1;32m\]'$MINUS_CHAR'( \[\e[1;35m\]\D{%H:%M:%S}\[\e[1;32m\] )'$MINUS_CHAR'< \[\e[1;33m\]'$pwd'\[\e[1;32m\] >${MINUS_LINE:'${#pwd}'+${#?}}'$MINUS_CHAR'[ \[\e[1;$((31+($?==0)*6))m\]$?\[\e[1;32m\] ]'$MINUS_CHAR'\n\[\e[1;31m\]\u\[\e[1;32m\]@\[\e[0m\e[1;34m\]\h\[\e[0m\]\[\e[1;32m\]% \[\e[0m\]'
    fi
}

# # On change le titre dynamiquement si on est sous X
if [[ $TERM = "rxvt-unicode" ]]; then
    TITLE='\[\e];\u@\h:\w\a\]'
else
    TITLE=''
fi

# On regénére le prompt après chaque commande
PROMPT_COMMAND=prompt_command

# +----------------+
# | Aliases commun |
# +----------------+

alias grep='grep --color=auto'
alias l='ls -s'
alias du='du -h'
alias df='df -h'

# +----------------------+
# | Customization locale |
# +----------------------+

[[ -f ~/.bashrc.local ]] && . ~/.bashrc.local

# +-------------------+
# | Messages au début |
# +-------------------+

if [[ $(uname) == Linux && ( $(locale charmap) == UTF-8 && $TERM != screen ) ]]; then
    MINUS_CHAR=─
    gen_minus_line
    date=$(/bin/date +"%R, %A %d %B %Y")
    redate=${date//é/e}
    redate=${redate//û/u}
    echo -e "\e[1;32m┬─${redate//?/─}─┬${MINUS_LINE:${#date}-20}\n\
│ \e[1;37m$date\e[1;32m │\n\
└─${redate//?/─}─┘\e[0m\n"
    unset date
else
    MINUS_CHAR=-
    gen_minus_line
fi

# Jolis alias
alias ls='ls --color=auto'
alias ll='ls -alFh'
alias la='ls -A'
alias l='ls -CF'
alias cd..='cd ..'
alias rm='rm -i'
alias mv='mv -i'
alias cp='cp -i'
alias chrome='chromium-browser &'
alias grep='grep --color=auto'
# Gedit fait de la merde avec l'encodage, du coup je force l'utf-8
alias gedit="gedit --encoding=utf-8"
alias gfor='gfortran'
alias news='emacs23 -l /usr/scripts/news/moderation.el -e gnus'