#!/bin/bash
# Copyright (C) 2008-2010 Gabriel Falcão <gabriel@nacaolivre.org>
#
# 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 2 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, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

# basic functions
regex_it () {
 RESULT=`echo "$1" | sed -s "s/$2/$3/g"`;
 echo $RESULT;
}

append_slash () {
    echo `regex_it "$1" '\([^/]\)$' '\1\/'`;
}

replace_tag () {
    if [ -f $3 ]; then
        sed -i "s#[{][@]$1[@][}]#$2#g" $3;
    fi;
}

PROJECT_NAME="$1";
MY_PROJECTS='{@MY_PROJECTS@}';
MY_TEMPLATES='{@MY_TEMPLATES@}';
MY_ROOT='{@MY_ROOT@}';
MY_PREFIX='{@MY_PREFIX@}';
MY_ETC='{@MY_ETC@}';
MY_PYTHON='{@MY_PYTHON@}';
DISPATCH_TEMPLATE_FILE='{@DISPATCH_TEMPLATE_FILE@}';
HTACCESS_TEMPLATE_FILE='{@HTACCESS_TEMPLATE_FILE@}';
PROJECTS_BASE_PATH='{@PROJECTS_BASE_PATH@}';

apply_template () {
    if [ -f $1 ]; then
        fullpath=$1;
        echo " [template processing] Replacing file $fullpath ...";
        replace_tag 'PROJECTS_BASE_PATH' $PROJECTS_BASE_PATH $fullpath;
        replace_tag 'MY_PYTHON' $MY_PYTHON $fullpath;
        replace_tag 'MY_PROJECTS' $PROJECTS_BASE_PATH $fullpath;
        replace_tag 'MY_TEMPLATES' $MY_TEMPLATES $fullpath;
        replace_tag 'MY_ROOT' $MY_ROOT $fullpath;
        replace_tag 'MY_PREFIX' $MY_PREFIX $fullpath;
        replace_tag 'MY_ETC' $MY_ETC $fullpath;
        replace_tag 'HTACCESS_TEMPLATE_FILE' $HTACCESS_TEMPLATE_FILE $fullpath;
        replace_tag 'DISPATCH_TEMPLATE_FILE' $DISPATCH_TEMPLATE_FILE $fullpath;
        replace_tag 'PROJECT_NAME' $PROJECT_NAME $fullpath;
    fi;
}

PROJECT_DIR=`append_slash $MY_PROJECTS`$PROJECT_NAME;
echo 'Creating project directory ...';
mkdir -p $PROJECT_DIR;

HTACCESS=`append_slash $PROJECT_DIR`.htaccess;
DISPATCH=`append_slash $PROJECT_DIR`passenger_wsgi.py;

pushd $PROJECT_DIR;

if [ -f $HTACCESS ]; then
    echo 'Creating a backup copy of current .htaccess';
    bkp="htaccess_`date +%Y%m%d.%H%M%S`.backup";
    mv $HTACCESS $bkp;
    echo ' -> backup done as '$bkp;
fi;
cp `append_slash $MY_TEMPLATES`$HTACCESS_TEMPLATE_FILE .htaccess
apply_template $HTACCESS;

if [ -f $DISPATCH ]; then
    echo 'Creating a backup copy of current .dispatch';
    bkp="dispatch_`date +%Y%m%d.%H%M%S`.backup";
    mv $DISPATCH $bkp;
    echo ' -> backup done as '$bkp;
fi;
cp `append_slash $MY_TEMPLATES`$DISPATCH_TEMPLATE_FILE passenger_wsgi.py
apply_template $DISPATCH;

if [ ! -f `append_slash $PROJECT_DIR`admin_media ]; then
    ln -sf `append_slash $MY_PREFIX`lib/python2.6/site-packages/django/contrib/admin/media admin_media;
fi;

chmod 755 $HTACCESS $DISPATCH;

echo 'All done!';
echo '';
echo 'Copy your "media" folder to here, or change its name in .htaccess';