#!/usr/bin/env bash

RAILS_APP_NAME="<%= application_name %>_rails"
MYSQL_APP_NAME="<%= application_name %>_mysql"
POSTGRESQL_APP_NAME="<%= application_name %>_postgresql"
SERVICE_NAME_POSTFIX="_service"

build() {
  if docker images | grep "${RAILS_APP_NAME}" > /dev/null; then
    echo "<%= '  ==> Image ${RAILS_APP_NAME} already exists'.blue %>"
  else
    echo "<%= '  ==> Building ${RAILS_APP_NAME}'.blue %>"
    docker build \
      -t ${RAILS_APP_NAME} \
      -f ./<%= "#{Constants::CONFIG_DIRECTORY_NAME}/rails/Dockerfile" %> . > /dev/null
  fi
<% if DRConfig.linked_database? %>
<% if databases[application_env] == 'mysql' %>
  if docker images | grep "${MYSQL_APP_NAME}" > /dev/null; then
    echo "<%= '  ==> Image ${MYSQL_APP_NAME} already exists'.blue %>"
  else
    echo "<%= '  ==> Building ${MYSQL_APP_NAME}'.blue %>"
    docker build \
      -t ${MYSQL_APP_NAME} \
      -f ./<%= "#{Constants::CONFIG_DIRECTORY_NAME}/#{databases[application_env]}/Dockerfile" %> . > /dev/null
  fi
<% elsif databases[application_env] == 'postgresql' %>
  if docker images | grep "${POSTGRESQL_APP_NAME}" > /dev/null; then
    echo "<%= '  ==> Image ${POSTGRESQL_APP_NAME} already exists'.blue %>"
  else
    echo "<%= '  ==> Building ${POSTGRESQL_APP_NAME}'.blue %>"
    docker build \
      -t ${POSTGRESQL_APP_NAME} \
      -f ./<%= "#{Constants::CONFIG_DIRECTORY_NAME}/#{databases[application_env]}/Dockerfile" %> . > /dev/null
  fi
<% end %>
<% end %>
}

rebuild() {
  destroy
  build
}

destroy(){
  stop > /dev/null
  remove > /dev/null
  if docker images | grep "${RAILS_APP_NAME}" > /dev/null; then
    echo "<%= '  ==> Destroying ${RAILS_APP_NAME}'.yellow %>"
    docker rmi ${RAILS_APP_NAME} > /dev/null
  else
    echo "<%= '  ==> Image ${RAILS_APP_NAME} does not exists'.yellow %>"
  fi
<% if DRConfig.linked_database? %>
<% if databases[application_env] == 'mysql' %>
  if docker images | grep "${MYSQL_APP_NAME}" > /dev/null; then
    echo "<%= '  ==> Destroying ${MYSQL_APP_NAME}'.yellow %>"
    docker rmi ${MYSQL_APP_NAME} > /dev/null
  else
    echo "<%= '  ==> Image ${MYSQL_APP_NAME} does not exists'.yellow %>"
  fi
<% elsif databases[application_env] == 'postgresql' %>
  if docker images | grep "${POSTGRESQL_APP_NAME}" > /dev/null; then
    echo "<%= '  ==> Destroying ${POSTGRESQL_APP_NAME}'.yellow %>"
    docker rmi ${POSTGRESQL_APP_NAME} > /dev/null
  else
    echo "<%= '  ==> Image ${POSTGRESQL_APP_NAME} does not exists'.yellow %>"
  fi
<% end %>
<% end %>
}

remove(){
  stop > /dev/null
  if docker ps -a | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Removing service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}'.yellow %>"
    docker rm ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
  else
    echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists'.yellow %>"
  fi
<% if DRConfig.linked_database? %>
<% if databases[application_env] == 'mysql' %>
  if docker ps -a | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Removing servic ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.yellow %>"
    docker rm ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
  else
    echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists'.yellow %>"
  fi
<% elsif databases[application_env] == 'postgresql' %>
  if docker ps -a | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Removing service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.yellow %>"
    docker rm ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
  else
    echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists'.yellow %>"
  fi
<% end %>
<% end %>
}

create() {
<% if DRConfig.linked_database? %>
<% if databases[application_env] == 'mysql' %>

  if docker images | grep "${MYSQL_APP_NAME}" > /dev/null; then
    if docker ps -a | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} already created. Starting instead'.blue %>"
    else
      echo "<%= '  ==> Creating service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
      docker run -d --name ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} \
        --env MYSQL_ROOT_PASSWORD=root \
        --env MYSQL_USER=user \
        --env MYSQL_PASSWORD=pass \
        --publish 3300:3306 \
        --volume <%= File.join(PATHS.config_directory, databases[application_env], Constants::DATA_DIRECTORY_NAME) %>:/var/lib/<%= databases[application_env] %> \
        ${MYSQL_APP_NAME} > /dev/null
    fi
    echo -ne "<%=  '  ==> Waiting for database server to start properly ...'.blue %>"
    for i in {1..20}; do echo -ne '.'; sleep 1; done; echo

  else

    echo "<%= '  ==> Image ${MYSQL_APP_NAME} does not exists. Build first'.red %>"
    exit 1

  fi

<% elsif databases[application_env] == 'postgresql' %>

  if docker images | grep "${POSTGRESQL_APP_NAME}" > /dev/null; then
    if docker ps -a | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} already created. Starting instead'.blue %>"
    else
      echo "<%= '  ==> Creating service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
      docker run -d --name ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} \
        --env POSTGRES_USER=user \
        --env POSTGRES_PASSWORD=pass \
        --publish 5400:5432
        --volume <%= File.join(PATHS.config_directory, databases[application_env], Constants::DATA_DIRECTORY_NAME) %>:/var/lib/<%= databases[application_env] %> \
        ${POSTGRESQL_APP_NAME} > /dev/null
    fi
    echo -ne "<%=  '  ==> Waiting for database server to start properly ...'.blue %>"
    for i in {1..20}; do echo -ne '.'; sleep 1; done; echo
  else

    echo "<%= '  ==> Image ${POSTGRESQL_APP_NAME} does not exists. Build first'.red %>"
    exit 1

  fi

<% end %>
<% end %>

  if docker images | grep "${RAILS_APP_NAME}" > /dev/null; then
    if docker ps -a | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} already created. Starting instead'.blue %>"
    else
      echo "<%= '  ==> Creating service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
      docker run -d --name ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} \
      <% if DRConfig.linked_database? %>
      <% if databases[application_env] == 'mysql' %>
        --link ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}:databasehost \
      <% elsif databases[application_env] == 'postgresql' %>
        --link ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}:databasehost \
      <% end %>
      <% end %>
        --publish 5000:5000 \
        --expose 5000 \
        ${RAILS_APP_NAME} > /dev/null
    fi
  else
    echo "<%= '  ==> Image ${RAILS_APP_NAME} does not exists. Build first'.red %>"
  fi
}

recreate() {
  remove > /dev/null
  create
}

status(){
<% if DRConfig.linked_database? %>
  <% if databases[application_env] == 'mysql' %>
    if docker ps | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} started'.blue %>"
    elif docker ps -a | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} not started'.blue %>"
    else
      if docker images | grep "${MYSQL_APP_NAME}" > /dev/null; then
        echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists. Consider creating'.yellow %>"
      else
        echo "<%= '  ==> Image ${MYSQL_APP_NAME} does not exists. Consider building'.yellow %>"
      fi
    fi
  <% elsif databases[application_env] == 'postgresql' %>
    if docker ps | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} started'.blue %>"
    elif docker ps -a | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
      echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} not started'.blue %>"
    else
      if docker images | grep "${POSTGRESQL_APP_NAME}" > /dev/null; then
        echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists. Consider creating'.yellow %>"
      else
        echo "<%= '  ==> Image ${POSTGRESQL_APP_NAME} does not exists. Consider building'.yellow %>"
      fi
    fi
  <% end %>
<% end %>
  if docker ps | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} started'.blue %>"
  elif docker ps -a | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} not started'.blue %>"
  else
    if docker images | grep "${RAILS_APP_NAME}" > /dev/null; then
      echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists. Consider creating'.yellow %>"
    else
      echo "<%= '  ==> Image ${RAILS_APP_NAME} does not exists. Consider building'.yellow %>"
    fi
  fi
}

ps(){
  cc=`docker ps | grep "bi_tool_mysql_service\|bi_tool_rails_service\|NAMES" | wc -l | tr -d ' \n'`
  if [[ "$cc" == "3" ]] ; then
    docker ps | grep "bi_tool_mysql_service\|bi_tool_rails_service\|NAMES"
  else
    docker ps -a | grep "bi_tool_mysql_service\|bi_tool_rails_service\|NAMES"
  fi
}

start(){
<% if DRConfig.linked_database? %>
<% if databases[application_env] == 'mysql' %>
  if docker ps | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} already started'.blue %>"
  elif docker ps -a | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Starting service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
    docker start ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
    echo -ne "<%=  '  ==> Waiting for database server to start properly ...'.blue %>"
    for i in {1..20}; do echo -ne '.'; sleep 1; done; echo
  else
    echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists, create first'.red %>"
  fi
<% elsif databases[application_env] == 'postgresql' %>
  if docker ps | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} already started'.blue %>"
  elif docker ps -a | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Starting service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
    docker start ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
    echo -ne "<%=  '  ==> Waiting for database server to start properly ...'.blue %>"
    for i in {1..20}; do echo -ne '.'; sleep 1; done; echo
  else
    echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists, create first'.red %>"
  fi
<% end %>
<% end %>
  if docker ps | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} already started'.blue %>"
  elif docker ps -a | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Starting service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
    docker start ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null > /dev/null
  else
    echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} does not exists, create first'.red %>"
  fi
}

stop(){
<% if DRConfig.linked_database? %>
<% if databases[application_env] == 'mysql' %>
  if docker ps | grep "${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Stopping service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
    docker stop ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
  else
    echo "<%= '  ==> Service ${MYSQL_APP_NAME}${SERVICE_NAME_POSTFIX} is not running'.blue %>"
  fi
<% elsif databases[application_env] == 'postgresql' %>
  if docker ps | grep "${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Stopping service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
    docker stop ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
  else
    echo "<%= '  ==> Service ${POSTGRESQL_APP_NAME}${SERVICE_NAME_POSTFIX} is not running'.blue %>"
  fi
<% end %>
<% end %>
  if docker ps | grep "${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}" > /dev/null; then
    echo "<%= '  ==> Stopping service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX}'.blue %>"
    docker stop ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} > /dev/null
  else
    echo "<%= '  ==> Service ${RAILS_APP_NAME}${SERVICE_NAME_POSTFIX} is not running'.blue %>"
  fi
}

restart() {
  stop > /dev/null
  start
}


case $1 in
  build) build ;;
  rebuild) rebuild;;
  start) start;;
  create) create ;;
  recreate) recreate ;;
  restart) restart ;;
  status) status ;;
  ps) ps ;;
  stop) stop ;;
  remove) remove ;;
  destroy) destroy ;;
  *)
    echo "Usage:" >&2
    echo "  ./<%= Constants::SHELL_SCRIPT_FILE_NAME %> {build|rebuild|create|recreate|start|restart|status|stop|remove|destroy}" >&2
    exit 3
  ;;
esac