#!/bin/bash
#
# Copyright 2014 Red Hat, Inc.
#
# NAME
#     lab-mariadb-users - setup script for RH254/RH299 MariaDB exercise
#
# SYNOPSIS
#     lab-mariadb-users setup
#
#     This script works on both desktopX and serverX.
#
# DESCRIPTION
#     This script performs the setup for the MariaDB user management
#     practice exercise for RH254.
#
# CHANGELOG
#   * Mon Jun  9 2014 Douglas Silva <dsilva@redhat.com>
#   - original code

# Initialize and set some variables
MYHOST=""
CMD=""
DEBUG='true'
RUN_AS_ROOT='true'

# Source library of functions
source /usr/local/bin/labtool.shlib
trap on_exit EXIT

# Additional functions for this shell script
function print_usage {
  local problem_name=$(basename $0 | sed -e 's/^lab-//')
  cat << EOF
This script controls the setup and grading of this lab.
Usage: lab ${problem_name} COMMAND
       lab ${problem_name} -h|--help
COMMAND is one of:
    setup - perform any setup steps for this lab on this machine
EOF
}

function lab_setup {
  VMNAME=$1
  case $VMNAME in
    desktop)
      echo "Installing MariaDB clients"
      yum groupinstall -y mariadb-client
      # Put in the steps to set up the lab
      # Change to the example of server) if should only run
      # there - and adjust the catchall message with *)
      ;;
    server)
      # Obviously adjust this to actual commands if script needs
      # to run on server - and adjust the catchall message with *)
      echo "Installing MariaDB"
      yum groupinstall -y mariadb mariadb-client
      echo "Starting MariaDB service"
      systemctl start mariadb.service
      echo "Enabling MariaDB service"
      systemctl enable mariadb.service
      echo "Configuring MariaDB on firewall"
      firewall-cmd --permanent --add-service=mysql
      firewall-cmd --reload
      echo "Importing data to MariaDB"
      cd /tmp
      wget http://content.example.com/courses/rhce/rhel7.0/materials/mariadb/mariadb-users.sql
      mysql -uroot < /tmp/mariadb-users.sql
      echo "Done"
      ;;
    *)
      # Should never get here, but what the hey....
      print_FAIL && echo "The setup script needs to be run on desktop"
      ;;
  esac
}

# Main area

# Check if to be run as root (must do this first)
if [[ "${RUN_AS_ROOT}" == 'true' ]] && [[ "${EUID}" -gt "0" ]] ; then
  if [[ -x /usr/bin/sudo ]] ; then
    ${SUDO:-sudo} $0 "$@"
    exit
  else
    # Fail out if not running as root
    check_root
  fi
fi

# Process command line
# Parse input
case $1 in
  setup)
    CMD=$1
    ;;
  -h|--help)
    print_usage
    exit 0
    ;;
  *)
    echo Bad option $1
    print_usage
    exit 1
    ;;
esac
# Validation
[[ -z "$CMD" ]] && debug "Missing command" && print_usage && exit 1

# Get local system information
get_X

# Branch based on short (without number) hostname
case $MYHOST in
  desktop|server)
    lab_$CMD $MYHOST
    ;;
  *)
    debug "Bad or missing hostname - $MYHOST"
    debug "This command needs to be run on desktop or server"
    exit 3
    ;;
esac