#!/bin/sh

P7ZIP=/usr/bin/7z
RSYNC=/usr/bin/rsync
WGET=/usr/bin/wget
RYZOM_CLIENT=/usr/games/ryzom_client
RYZOM_CONFIG_DEFAULT=/etc/ryzom/client_default.cfg
RYZOM_CONFIG=~/.ryzom/client.cfg

RYZOM_DIR=~/.ryzom
DATA_DIR=$RYZOM_DIR/data

mkdir -p $RYZOM_DIR

if [ ! -d "$DATA_DIR" ]
then
  # symlink user's data dir to ryzom data cache
  ln -s /var/cache/ryzom/data $DATA_DIR
fi

# Check if a directory contains Ryzom data
ryzom_data_found()
{
  # Check for directory, gamedev.bnp and ryzom.ttf
  COUNT=0

  if [ -d $1 ]
  then
    # If there are a least 220 bnp files, we could use this directory
    # There are 226 bnp files in last version
    COUNT=$(find -L $1 -name *.bnp | wc -l)
  fi

  echo $COUNT
}

COUNT=$(ryzom_data_found $DATA_DIR)

echo "Found $COUNT BNP files in $DATA_DIR"

if [ $COUNT -lt 220 ] && [ -f $WGET ] && [ -f $P7ZIP ]
then
  mkdir -p "$DATA_DIR/tmp"

  # Check free diskspace
  echo "Checking for free disk space..."
  DISKSPACE=$(df "$DATA_DIR/tmp" | grep "/dev" | awk '{print $4}')
  if [ $? -ne 0 ]
  then
    exit 1
  fi
  if [ "$DISKSPACE" -lt "8000000" ]
  then
    echo "You don't have enough free space to download and uncompress Ryzom client data."
    exit 1
  fi

  # Download
  echo "Downloading ryzom_client.7z from sourceforge..."
  # wget
  $WGET -c http://sourceforge.net/projects/ryzom/files/ryzom_client.7z -O "$DATA_DIR/tmp/ryzom_client.7z"
  if [ $? -ne 0 ]
  then
    exit 1
  fi

  # Extract data
  echo "Extracting data from ryzom_client.7z..."
  cd "$DATA_DIR/tmp"
  # 7z
  $P7ZIP x ryzom_client.7z
  if [ $? -ne 0 ]
  then
    exit 1
  fi
  cd ..
  mv -uf tmp/ryzom/data/* .
  # Delete temporary downloaded files
  rm -rf tmp
fi

if [ -f $RYZOM_CONFIG ]
then
  echo "Updating $RYZOM_CONFIG..."

  # Escape path for sed using bash find and replace
  RYZOM_CONFIG_DEFAULT_ESCAPED=$(echo $RYZOM_CONFIG_DEFAULT | sed 's/\//\\\//g')

  # Update RootConfigFilename to be sure it's using the right default config
  sed -i 's/RootConfigFilename.*/RootConfigFilename   = \"'$RYZOM_CONFIG_DEFAULT_ESCAPED'\"/g' $RYZOM_CONFIG
fi

if [ -f $RSYNC ]
then
  echo "Patching Ryzom data..."

  # Rsync
  $RSYNC -rOtzv --progress --stats www.ryzom.com::ryzom/data/ $DATA_DIR
  if [ $? -ne 0 ]
  then
    exit 1
  fi
fi

# Launch Ryzom client if it exists
if [ -f $RYZOM_CLIENT ]
then
  echo "Launching Ryzom..."

  nohup $RYZOM_CLIENT $1 $2 $3 2> /dev/null &
fi

# Wait until all previous commands are executed and displayed before exiting
sync

exit 0