#!/usr/bin/env bash
########################################################################
# Copyright 2014 Lukas Bestle <project-projectr@lukasbestle.com>
# License   MIT
########################################################################
# Creates a link for the webserver pointing a domain to a site.
#
# Usage: site_link <site> <domain> [<path>]
#        
#        <site>    Name of the site (directory in ~/web/sites/)
#        <domain>  FQDN of the domain (like "example.com")
#        <path>    Optional destination path for the link
#                  If not given, the destination will be the "current"
#                  directory of the site. If the current site directory
#                  has a "public" directory on the top level, it will
#                  be the destination of the domain link.
########################################################################

site="$1"
domain="$2"
path="$3"

if [[ -z "$domain" ]]; then
	# Print help
	echo -e "\033[1mUsage:\033[0m \033[34msite_link\033[0m <site> <domain>"
	exit 1
fi

# Check if the site exists
if [[ ! -f "$HOME/web/sites/$site/.project" ]]; then
	echo -e "\033[31mThe site \033[34m$site\033[31m does not exist or is invalid.\033[0m" >&2
	exit 1
fi

# Check if the site currently has a current version
if [[ ! -e "$HOME/web/sites/$site/current" ]]; then
	echo -e "\033[31mThe site \033[34m$site\033[31m currently does not have a current version, please deploy first.\033[0m" >&2
	exit 1
fi

# Check if there is already a link with this domain
if [[ -e "$HOME/web/$domain" ]]; then
	echo -e "\033[31mA link for the domain \033[34m$domain\033[31m already exists.\033[0m" >&2
	exit 1
fi

# Determine the link destination if not given
if [[ -z "$path" ]]; then
	if [[ -d "$HOME/web/sites/$site/current/public" ]]; then
		path="current/public"
	else
		path="current"
	fi
fi

# Create link
echo -e "\033[1mCreating link from site \033[34m$site\033[0;1m (path \033[34m$path\033[0;1m) to domain \033[34m$domain\033[0;1m...\033[0m"
if ! ln -s "sites/$site/$path" "$HOME/web/$domain"; then
	echo -e " => \033[31mCould not create link at \033[34m$HOME/web/$domain\033[31m.\033[0m" >&2
	exit 1
fi
echo -e " => \033[32mSuccess.\033[0m"

# Add to site's domains
echo -e "\033[1mAdding domain to site's domains (\033[34m.domains\033[0;1m file)...\033[0m"
echo "$domain" >> "$HOME/web/sites/$site/.domains"
if [[ $? == 0 ]]; then
	echo -e " => \033[32mSuccess.\033[0m"
else
	echo -e " => \033[31mSomething went wrong.\033[0m" >&2
	exit 1
fi