#!/bin/bash -
#===============================================================================
#
#          FILE: check-dependencies.sh
#
#         USAGE: ./check-dependencies.sh
#
#   DESCRIPTION: Check that Perl module dependencies for the hpr_generator
#		  are installed.
#
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: Roan "Rho`n" Horning (roan.horning@gmail.com)
#  ORGANIZATION:
#       CREATED: 09/05/2024 09:55:00 PM
#      REVISION:  ---
#===============================================================================

set -o nounset # Treat unset variables as an error

#---  FUNCTION  ----------------------------------------------------------------
#          NAME: is_module_installed
#   DESCRIPTION: Tests if the supplied module is found on the system
#    PARAMETERS: Name of the denpendent Perl module
#       RETURNS: 0 if not found, 1 if found
#-------------------------------------------------------------------------------
function is_module_installed {
  HR="----------------------"
  perl -e "use ${1} "
  if [ $? -ne 0 ]; then
    echo ${HR}
  else
    echo "Found module ${1}"
    echo ${HR}
  fi
}

MODULES=(
  "Getopt::Long"
  "Pod::Usage"
  "Config::Std"
  "Template"
  "Template::Plugin::File"
  "Template::Plugin::DBI"
  "Template::Plugin::HTML::Strip"
  "DBI"
  "Tie::DBI"
  "DBD::SQLite"
  "Date::Calc"
  "Text::CSV_XS"
)

echo "The following modules must be installed for the site-generator to function: "
for module in "${MODULES[@]}"; do
  echo "* ${module}"
done

echo "Scanning for modules ..."
echo "----------------------"

for module in "${MODULES[@]}"; do
  is_module_installed "${module}"
done

echo "Finished scanning."