#!/bin/bash

################################################################################
# Génère les fichiers HTML de mon site 
# 
# Copyright (C) 2022 rick G. <rick@gnous.eu>
# 
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
# 
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <https://www.gnu.org/licenses/>.
################################################################################

# liste des fichiers html à générer
files="autres.html copaings.html index.html ou.html projets.html rss.html apropos.html"
annexes="css img"

pathLinks="/home/site/a/"
target="www"
header="header.html"
footer="footer.html"
org=1

################################################################################
# Génère un message d'aide
################################################################################
function print_help {
    echo "usage : generate.sh [-o] [<dossier>]"
    echo -e "\tgénère les fichiers HTML du site. Il est possible de changer"
    echo -e "\tle dossier de destination (www par défaut)."
    echo
    echo -e "\t-h\tgénère ce message et arrête le script."
    echo -e "\t-o\tne génère pas les fichiers org"
}

# vérification des arguments passés
if [[ $@ =~ "-h" ]]
then
    print_help
    exit 0
fi

if [[ $@ =~ "-o" ]]
then
    org=0
fi

if [ -d $target ]
then
    # TODO demander à l'utilisateur
    rm -rf $target
fi

mkdir $target

for i in ${files}
do
    echo "Generate $i..."
    file="$target/$i"
    cat $header > $file
    # on extrait le bloc contenant les link, on les enlève et rajoute <link />
    newHeader=$(sed -n -e "/%link%/,/%endlink%/p" $i | sed -e "/%link%/d;/%endlink%/d" -e 's/\//\\\//g' -e "i<link " -e 'a \\\/>' | tr -d "\n")

    # je suppose que s'il y a moins de 10 caractères, alors on ne prend
    # pas en compte le nouveau link.
    if [ $(echo $newHeader | wc -c) -lt 10 ]
    then
        sed -i -e "/%links%/d" $file
    else
        # pour bien aligner
        newHeader="\ \ \ \ \ \ \ \ $newHeader"
        sed -i -e "/%links%/a$newHeader/" $file
    fi

    cat $i >> $file
    cat $footer >> $file
    # nettoyage des balises précédemment utilisées
    sed -i -e "/%links%/d" $file
    sed -i -e "/%link%/,/%endlink%/d" $file
    sed -i -e "s/%file%/$i/" $file
done

cp -t $target -r $annexes

echo "Link Links (lul)"
ln -s $pathLinks $target

if [ $org -eq 1 ]
then
    echo "Generate org files..."
    emacs -u $USER --script publish.el
fi