#!/bin/bash

PLATFORMDIR=/home/drupal/core
DBHOST=mysql0
DEVGROUP=drupaladm
VHOSTSVNBASE=http://devel.egressive.com/egressive/egpuppet/trunk/virtualhosts/dev
ADDPUPPETCONF=0
FIXMISSING=1

usage() {
  cat <<EOT

Usage: `basename $0` [ OPTIONS ] siteuri svnuri platform

Deploy a Drupal site to the specified docroot.

OPTIONS

  -h        - Show this help
  -l        - List available platforms
  -d dbhost - Specify an alternative database host (Default: $DBHOST)
  -u user   - Site will be owned by user (Default: $USER)

EOT
}

[ -f "/etc/egscripts/egdrupaldeploy.conf" ] && . /etc/egscripts/egdrupaldeploy.conf

while getopts "d:u:hl" OPT ; do
  case $OPT in
    d)  DBHOST=$OPTARG ;;
    u)  SITEUSER=$OPTARG ;;
    l)  ls -1 $PLATFORMDIR ; exit 0 ;;
    h)  usage ; exit 0 ;;
    *)  usage ; exit 1 ;;
  esac
done

shift $(($OPTIND - 1))

if [ $# -ne 3 ] ; then
  usage
  exit 1
fi

user=${SITEUSER-$USER}
siteuri=$1
svnuri=$2
platform=$3
docroot=$PLATFORMDIR/$platform
group=`id -g $user`

# Do some sanity checks
if [ -z "$docroot" ] ; then
  echo "Err: Cannot find docroot for platform $platform" >&2
  exit 1
fi

if [ ! -d $docroot ] || [ ! -f "$docroot/update.php" ] ; then
  echo "Err: $docroot does not look like a valid Drupal DocumentRoot" >&2
  exit 1
fi

if ! id $user > /dev/null ; then
  echo "Err: User $user does not exist" >&2
  exit 1
fi

if ! getent group $group ; then
  echo "Err: Group id $group does not exist" >&2
  exit 1
fi

sitedir=$docroot/sites/$siteuri

if [ -d "$sitedir" ] ; then
  echo "$sitedir already exists" >&2
  exit 1
fi

set -e

# Checkout the site code
svn co $svnuri $sitedir

# Create a database for the user
dbname=`echo "${user}__${platform}__${siteuri}" | sed -e 's/\./_/g'`

ret=`egmakedb -H $DBHOST $user $dbname`
eval "$ret"

# Generate the site settings.php
# Default for D6
default_settings=$docroot/sites/default/default.settings.php
if [ ! -f $default_settings ] ; then
  # Default for D5
  default_settings=$docroot/sites/default/settings.php
fi

# Create a drushrc.php
cat <<EOT > $sitedir/drushrc.php
<?php
\$options['site_url'] = '$siteuri';
EOT

if [ ! -f $default_settings ] ; then
  echo "Unable to find default settings file in $docroot/sites/default/" >&2
  exit 1
fi

settings=$sitedir/settings.php
sed -e "s/^\$db_url.*/\$db_url = 'mysql:\/\/$DBUSER:$DBPASS@$DBHOST\/$DBNAME';/" $default_settings > $settings

cat >> $settings <<EOT
// Include local settings file if present
if (file_exists(dirname(__FILE__) .'/settings.local.php')) {
  require_once(dirname(__FILE__) .'/settings.local.php');
}
EOT

mkdir -v $sitedir/files

# Fix missing module symlinks, if any
if [ $FIXMISSING -eq 1 ] && [ -d "$sitedir/modules" ] ; then
  pushd $sitedir/modules
  egdrupalsymlinks -m
fi

# Make all site dirs and file readable by the web user
egsetdiracls $sitedir
# Make files directory writeable by the web user
egsetdiracls -w $sitedir/files
# Make all site files writeable by the site owner
egsetdiracls -w -u $user $sitedir
# Make all site files writeable by the site owners primary group
egsetdiracls -w -u $group $sitedir
# Make all site files writeable by the developer group
egsetdiracls -w -g $DEVGROUP $sitedir

if [ "$ADDPUPPETCONF" -eq 1 ] ; then
  # Create a virtualhost configuration file
  tmpfile=`mktemp /tmp/egdrupaldeploy-XXXXXX`
  cat > $tmpfile <<EOT
  virtualhost { "$siteuri":
    documentroot => "$docroot",
    owner => "$user",
  }
EOT
  svn import -m "egdrupaldeploy: Auto Puppet vhost conf ($siteuri)" $tmpfile $VHOSTSVNBASE/$siteuri.pp
  rm -v $tmpfile
fi