#!/bin/bash

## Copyright (C) 2012 - 2025 ENCRYPTED SUPPORT LLC <adrelanos@whonix.org>
## See the file COPYING for copying conditions.

check_non_freedom() {
   local vrms_output vrms_result line expected_package expected_grep check_non_freedom_result continue

   ## Human readable output.
   vrms_output="$(LC_ALL=C vrms 2>&1)" || true
   vrms_output="$(br_add "$vrms_output")"

   ## For machine readable output.
   vrms_result="$(LC_ALL=C vrms --quiet --sparse 2>&1)" || true

   check_non_freedom_result=free
   for line in $vrms_result ; do
      true "line: $line"
      if [ "$line" = "" ]; then
         continue
      fi
      for expected_package in $systemcheck_expected_non_freedom_package ; do
         if [ "$line" = "$expected_package" ]; then
            check_non_freedom_result=expected
            continue 2
         fi
      done
      for expected_grep in $systemcheck_expected_non_freedom_grep_package ; do
         if printf '%s\n' "$line" | grep -- "$expected_grep" >/dev/null 2>/dev/null ; then
            check_non_freedom_result=expected
            continue 2
         fi
      done
      check_non_freedom_result=non_freedom
      local MSG="<p>Check non-freedom Result: non-freedom package found: '$line'</p>"
      if [ "$verbose" -ge "1" ]; then
         $output_cli ${output_opts[@]} --messagecli --typecli "info" --message "$MSG"
      fi
      break
   done

   local non_freedomlink="<a href=${PROJECT_HOMEPAGE}/wiki/Avoid_nonfreedom_software>${PROJECT_HOMEPAGE}/wiki/Avoid_nonfreedom_software</a>"

   if [ "$check_non_freedom_result" = "free" ]; then
      local MSG="<p>Check non-freedom Result: Ok, no non-freedom packages found. For more information, see:
<br />$non_freedomlink</p>"
      if [ "$verbose" -ge "1" ]; then
         $output_x ${output_opts[@]} --messagex --typex "info" --message "$MSG"
         $output_cli ${output_opts[@]} --messagecli --typecli "info" --message "$MSG"
      fi
   elif [ "$check_non_freedom_result" = "expected" ]; then
      non_freedom_packages_detected=expected
      local MSG="<p>Check non-freedom Result: Ok, only expected non-freedom packages found. For more information, see:
<br />$non_freedomlink</p>"
      if [ "$verbose" -ge "1" ]; then
         $output_x ${output_opts[@]} --messagex --typex "info" --message "$MSG"
         $output_cli ${output_opts[@]} --messagecli --typecli "info" --message "$MSG"
      fi
      local MSG="<p><br />vrms_output:
<br /><code>$vrms_output</code></p>"
      if [ "$verbose" -ge "2" ]; then
         $output_x ${output_opts[@]} --messagex --typex "info" --message "$MSG"
         $output_cli ${output_opts[@]} --messagecli --typecli "info" --message "$MSG"
      fi
   else
      local if_you_know_what_you_are_doing_msg
      if_you_know_what_you_are_doing_msg="$(if_you_know_what_you_are_doing_funct "$FUNCNAME")"
      local MSG="<p>Check non-freedom Result: non-freedom packages found. This is non-ideal but okay if you know what you are doing. For more information, see:
<br />$non_freedomlink
<br />
<br />vrms_output:
<br /><code>$vrms_output</code>
<br />
<br />$if_you_know_what_you_are_doing_msg</p>"
      if [ "$verbose" -ge "1" ]; then
         EXIT_CODE="1"
         $output_x ${output_opts[@]} --messagex --typex "warning" --message "$MSG"
         $output_cli ${output_opts[@]} --messagecli --typecli "warning" --message "$MSG"
      fi
   fi
}