#!/bin/bash

# Find current directory & configure paths
SCRIPT_PATH=$(realpath $0)
SCRIPT_DIR=$(dirname $SCRIPT_PATH)
LOCK_FILE=$SCRIPT_DIR/update.lock
UPDATE_HTML=$SCRIPT_DIR/nginx/update-page/updating.html
PROJECT_ROOT=$SCRIPT_DIR/../../

# Load .env or .env.dist if not present
set -o allexport
#TODO
if [ -f "$SCRIPT_DIR/.env" ]; then
    source $SCRIPT_DIR/.env
else
    source $SCRIPT_DIR/.env.dist
fi
set +o allexport

# lock start
if [ -f $LOCK_FILE ] ; then
  retVal="Already building!"
  return "${retVal}" 2>/dev/null || exit "${retVal}"
fi
touch $LOCK_FILE

UPDATE_SITE_CONFIG=stage1_updating

# Create a new updating.html from the template
\cp $SCRIPT_DIR/nginx/update-page/updating.html.template $UPDATE_HTML

# configure nginx for the update-page
echo 'Configuring nginx to serve the update-page<br>' >> $UPDATE_HTML
sudo rm /etc/nginx/sites-enabled/gradido.conf
sudo ln -s /etc/nginx/sites-available/update-page.conf /etc/nginx/sites-enabled/
sudo /etc/init.d/nginx restart


# stop all services
echo 'Stopping all Gradido services<br>' >> $UPDATE_HTML
pm2 stop all

# git
BRANCH=${1:-master}
echo "Starting with git pull - branch:$BRANCH<br>" >> $UPDATE_HTML
cd $PROJECT_ROOT
git fetch origin $BRANCH
git checkout $BRANCH
git pull
export BUILD_COMMIT="$(git rev-parse HEAD)"

# Install & build database
echo 'Updating database<br>' >> $UPDATE_HTML
cd $PROJECT_ROOT/database
yarn install
yarn build
# TODO only in staging!
yarn dev_up
# TODO only in staging!
yarn dev_reset
yarn seed 

# Install & build backend
echo 'Updating backend<br>' >> $UPDATE_HTML
cd $PROJECT_ROOT/backend
yarn install
yarn build
pm2 delete gradido-backend
pm2 start --name gradido-backend "yarn start"
pm2 save

# Install & build frontend
echo 'Updating frontend<br>' >> $UPDATE_HTML
cd $PROJECT_ROOT/frontend
yarn install
yarn build
pm2 delete gradido-frontend
pm2 start --name gradido-frontend "yarn start"
pm2 save

# Install & build admin
echo 'Updating admin<br>' >> $UPDATE_HTML
cd $PROJECT_ROOT/admin
yarn install
yarn build
pm2 delete gradido-admin
pm2 start --name gradido-admin "yarn start"
pm2 save

# let nginx showing gradido
echo 'Configuring nginx to serve gradido again<br>' >> $UPDATE_HTML
sudo ln -s /etc/nginx/sites-available/gradido.conf /etc/nginx/sites-enabled/
sudo rm /etc/nginx/sites-enabled/update-page.conf
sudo /etc/init.d/nginx restart

#release lock
rm $LOCK_FILE