#!/usr/bin/env bash

DIR=$(cd $(dirname $0)/..; pwd)

CYAN="\033[96m"
YELLOW="\033[93m"
RESET="\033[0m"
BOLD="\033[1m"

echo -e "${CYAN}${BOLD}==================================================${RESET}"
echo -e "${CYAN}${BOLD}Patch running Rancher Docker container with dev UI${RESET}"
echo -e "${CYAN}${BOLD}==================================================${RESET}"
echo ""
echo "This script will build the UI and copy the built UI into the specified running Rancher container"
echo ""

if [ -z "$1" ]; then
  echo -e "${YELLOW}Need ID of Rancher container to patch${RESET}"
  exit 1
fi

DOCKER=$(docker version > /dev/null)
if [ $? -ne 0 ]; then
  echo -e "${YELLOW}Can not run Docker commands - is Docker running?${RESET}"
  exit 1
fi

CONTAINER=$1

SKIP_BUILD="false"

if [ "$2" == "-s" ]; then
  echo "Skipping build"
  SKIP_BUILD="true"
fi

# Check container exists and looks like a Rancher container
VERSION=$(docker exec ${CONTAINER} /bin/bash -c "printenv CATTLE_UI_VERSION")

if [ $? -ne 0 ]; then
  echo -e "${YELLOW}Could not get version env var from container - check the container ID${RESET}"
  exit 1
fi

echo "UI version from existing container: ${VERSION}"

# Check we have node and yarn installed

node --version > /dev/null 2>&1
if [ $? -ne 0 ]; then
  echo -e "${YELLOW}node does not appear to be installed - this is required to build the UI${RESET}"
  exit 1
fi

yarn --version > /dev/null 2>&1
if [ $? -ne 0 ]; then
  echo -e "${YELLOW}yarn does not appear to be installed - this is required to build the UI${RESET}"
  exit 1
fi

if [ ! -d node_modules ]; then
  echo -e "${YELLOW}node_modules folder does not exist - running yarn install${RESET}"
  yarn install
  echo -e "${CYAN}Building production build of the UI${RESET}"
fi

rm -rf ${DIR}/dist
mkdir -p ${DIR}/dist

UI_MODE="" RANCHER="" CATALOG="" ${DIR}/node_modules/.bin/ember build --environment=production --output-path=${DIR}/dist

rm -f dist.tar
tar -cvf dist.tar dist/

docker exec -it ${CONTAINER} bash -c "cd /usr/share/rancher/ui; rm -rf *"
docker cp dist.tar ${CONTAINER}:/usr/share/rancher/ui
rm -f dist.tar

docker exec -it ${CONTAINER} bash -c "cd /usr/share/rancher/ui; tar -xvf dist.tar --strip-components=1"

echo ""
echo "All done"
echo -e "${YELLOW}Note: It is recommended to set the Rancher 'ui-offline-preferred' setting to 'Local' to ensure the embedded UI is always used${RESET}"
echo ""