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#!/bin/bash
#

# Display usage info
vhost-usage() {
cat <<"USAGE"
Usage: vhost [OPTIONS] <name>
    -h|--help   this screen
    -pub        to create the webhost root in ~/www/name/public/
    -url        to specify a local address, default is http://name.local
    -rm         to remove a previously created vhost, see examples
    -d          to specify the webroot directory location, default is in ~/www (NO TRAILING SLASH)
    -email      to specify the email of the administrator in the virtual host file
    -l          to list the current virtual hosts

IMPORTANT Notes:
1- You need git setup to grab the template file if you do not have it already.
2- You need to make sure you do not have a vhost called 'template' or that it is the one from this gist: https://gist.github.com/gistwebdev/5640113
3- Check your version of sed, you need to make sure -i works. GNU sed is suggested.

Examples:
vhost mysite                                this will create a new apache2 vhost named mysite with a webroot of ~/www/mysite/ reachable at http://mysite.local
vhost -pub mysite                           this will create a new apache2 vhost named mysite with a webroot of ~/www/mysite/public/ reachable at http://mysite.local
vhost -d ~/sites/mysite/myroot -url dev.mysite.dev mysite   this will create a new apache2 vhost named mysite with a webroot of ~/sites/mysite/myroot reachable at http://dev.mysite.dev
vhost -rm mysite.local mysite               this will remove the apache2 vhost named mysite and remove the mysite.local entry from the /etc/hosts file. Be sure to specify boths
USAGE
exit 0
}

# Delete a virtual host file and it's entry in /etc/hosts
vhost-remove() {
    sudo -v
    echo "Removing $url from /etc/hosts."
    sudo sed -i '/'$url'/d' /etc/hosts

    echo "Disabling and deleting the $name virtual host."
    sudo a2dissite $name
    sudo rm /etc/apache2/sites-available/$name
    sudo service apache2 reload
    exit 0
}

vhost-list() {
    echo "Available virtual hosts:"
    ls -l /etc/apache2/sites-available/
    echo "Enabled virtual hosts:"
    ls -l /etc/apache2/sites-enabled/
    exit 0
}

# Define and create default values
name="${!#}"
email="webmaster@localhost"
url="$name.local"
webroot="$HOME/www/$name"


# Check if git is installed
if ! hash git 2>/dev/null; then
    echo -e "Git is not installed! You will need it at some point anyways..."
    echo -e "Exiting, install git first."
    exit 0
fi

# Loop to read options and arguments
while [ $1 ]; do
    case "$1" in
        '-l') vhost-list;;
        '-h'|'--help') vhost-usage;;
        '-rm') url="$2"
               vhost-remove;;
        '-pub') webroot="$HOME/www/$name/public";;
        '-d') webroot="$2";;
        '-url') url="$2";;
        '-email') email="$2";;
    esac
    shift
done

sudo -v

# Check if the webroot exists
if [ ! -d "$webroot" ]; then
    echo "Creating $webroot directory"
    mkdir -p $webroot
fi

echo "Checking for the virtual host template file..."

if [ ! -f /etc/apache2/sites-available/template ]; then
    echo "Downloading template file with Git..."

    sudo git clone https://gist.github.com/9927813.git /etc/apache2/sites-available/temp

    sudo mv /etc/apache2/sites-available/temp/template /etc/apache2/sites-available/template

    sudo rm -Rf /etc/apache2/sites-available/temp
fi

echo "Creating the new $name virtual host file that has a webroot of: $webroot"

sudo cp /etc/apache2/sites-available/template /etc/apache2/sites-available/$url.conf
sudo sed -i 's/template.email/'$email'/g' /etc/apache2/sites-available/$url.conf
sudo sed -i 's/template.url/'$url'/g' /etc/apache2/sites-available/$url.conf
sudo sed -i 's#template.webroot#'$webroot'#g' /etc/apache2/sites-available/$url.conf

echo "Adding $url to the /etc/hosts file..."

sudo sed -i '1s/^/127.0.0.1       '$url'\n/' /etc/hosts

sudo a2ensite "$url.conf"

sudo service apache2 reload

echo "Virtual host $name created with a webroot at $webroot reachable from http://$url"

exit 0