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#!/usr/bin/perl

# Redirect error messages to a log of my choosing. (it's annoying to filter for errors in the shared env)
my $error_log_path = $ENV{SERVER_NAME} eq "volunteers.rollercon.com" ? "/home3/rollerco/logs/" : "/tmp/";
close STDERR;
open STDERR, '>>', $error_log_path.'vorc_error.log' or warn "Failed to open redirected logfile ($0): $!";
#warn "Redirecting errors to ${error_log_path}vorc_error.log";

use strict;
use cPanelUserConfig;
use WebDB;
use HTML::Tiny;
use RollerCon;
use CGI qw/param header start_html url/;
my $h = HTML::Tiny->new( mode => 'html' );

my %F;

my $cookie_string = authenticate (RollerCon::SYSADMIN) || die;
my $RCAUTH_cookie = CGI::Cookie->new(-name=>'RCAUTH',-value=>"$cookie_string",-expires=>"+30m");
our ($EML, $PWD, $LVL) = split /&/, $cookie_string;
my $user = getUser ($EML);
$user->{department} = convertDepartments $user->{department};
my $DepartmentNames = getDepartments ();
my $username = $user->{derby_name};
my $RCid = $user->{RCid};
my $RCAUTH_cookie = CGI::Cookie->new(-name=>'RCAUTH',-value=>"$cookie_string",-expires=>"+30m");
my $YEAR = 1900 + (localtime)[5];


my $pageTitle = "View Class Survey Question";
my $homeURL = "/schedule/";
my $DBTable = "survey_question";
my %FIELDS = (
        qid          => [qw(QID           5    auto        static )],
        qorder       => [qw(Order        10    number      required )],
        question     => [qw(Question     20    text        required )],
        type         => [qw(Type         30    select      required )],
        required     => [qw(Required     40    switch      required )],
        private      => [qw(Private      45    switch      required )],
        added        => [qw(Timestamp    50    auto     )],
);


my %fieldDisplayName = map  { $_ => $FIELDS{$_}->[0]   } keys %FIELDS;
my %fieldType        = map  { $_ => $FIELDS{$_}->[2]   } keys %FIELDS;
my @requiredFields   = sort fieldOrder grep { defined $FIELDS{$_}->[3] } keys %FIELDS;
my @DBFields   = sort fieldOrder grep { $fieldType{$_} =~ /^(text|select|number|switch|date|time|auto)/ } keys %FIELDS;
my @ROFields   = sort fieldOrder grep { $fieldType{$_} =~ /^(readonly)/ } keys %FIELDS;
my $primary = $DBFields[0];

sub fieldOrder {
        $FIELDS{$a}->[1] <=> $FIELDS{$b}->[1];
}

sub saveForm {
  error ("ERROR: Only SysAdmins can change games.") unless $LVL >= RollerCon::ADMIN;
  
  my $FTS = shift;
  
  my $dbh = WebDB::connect ();
  if ($FTS->{$DBFields[0]} eq "NEW") {
    $dbh->do (
      "INSERT INTO $DBTable
      (qorder,question,type,required,private,added)
      VALUES(?,?,?,?,?,now())",
        undef,
        $FTS->{qorder}, $FTS->{question}, $FTS->{type}, $FTS->{required}, $FTS->{private}
    ) or warn $dbh->errstr;
        ($FTS->{qid}) = $dbh-> selectrow_array ("select max(qid) from $DBTable where qorder = ? and question = ? and type = ? and required = ? and private = ?", undef, $FTS->{qorder}, $FTS->{question}, $FTS->{type}, $FTS->{required}), $FTS->{private};
    logit ($RCid, "$username created new survey question ($FTS->{qid})");
    
  } else {
    $dbh->do (
      "UPDATE $DBTable
      SET qorder=?, question=?, type=?, required=?, private=?, added=now()
      WHERE qid = ?",
      undef,
      $FTS->{qorder}, $FTS->{question}, $FTS->{type}, $FTS->{required}, $FTS->{private}, $FTS->{qid}
    );
    logit ($RCid, "$username updated class ($FTS->{qid})");
    
        }
        
        $dbh->disconnect ();     # stored into database successfully.
        return $FTS->{qid};
}

sub delete_item {
  error ("ERROR: Only SysAdmins can change games.") unless $LVL >= RollerCon::ADMIN;
  
  my $X = shift;
  my $dbh = WebDB::connect ();
  
  $dbh->do ("delete from $DBTable where $primary = ?", undef, $X->{$primary});
    
  $dbh->disconnect ();
  logit ($RCid, "$username deleted Question ($X->{$primary})");
  print "Question Deleted: $X->{$primary}", $h->br;
  print &formField ("Cancel", "Back", "POSTSAVE");
}


sub select_type {
        my $selection = shift // "";
  
  my @options = qw(range text);
  
  return $h->select ({ name=>"type" }, [ $h->option (""), map { $selection eq $_ ? $h->option ({selected=>[]}, $_) : $h->option ($_) } @options ]);
};


print header (-cookie=> [ $RCAUTH_cookie ]),
                        start_html (-title => $pageTitle, -style => {'src' => "/style.css"} ); 

print $h->div ({ class => "accent pageheader" }, [
  $h->h1 ($pageTitle),
  $h->div ({ class=>"sp0" }, [
    $h->div ({ class=>"spLeft" }, [
    ]),
    $h->div ({ class=>"spRight" }, [
      $h->input ({ type=>"button", value=>"Home", onClick=>"window.location.href='$homeURL'" }),
    ]),
  ]),
]);

my $choice = param ("choice") // "";
if ($choice eq "Save") {
        process_form ();
} elsif (defined (param ($primary))) {
  my $thing = param ($primary);
  if ($choice eq "Delete") {
    delete_item ({ $primary => $thing });
  } else {
          display_form ({ $primary => $thing }, $choice);
        }
} else {
        display_form (); # blank form
}

print $h->close ("html");

sub display_form  {
  my $R = shift;
  my $view = shift // "";
        my $actionbutton;
  
  $view = "View" unless $LVL >= RollerCon::ADMIN;
  
  if ($view eq "POSTSAVE" and $R->{$primary} eq "NEW") {
      print &formField ("Cancel", "Back", "POSTSAVE");
      return;
  }
  
  if ($R) {
    # we're dealing with an existing thing.  Get the current values out of the DB...
    my $dbh = WebDB::connect ();
    
          @F{@DBFields} = $dbh->selectrow_array (
                     "SELECT ". join (", ", @DBFields) ." FROM $DBTable WHERE $primary = ?",
                      undef, $R->{$primary});
          
          $dbh->disconnect ();
          
          # did we find a record?
          error ("Cannot find a database entry for Question with qid: '$R->{$primary}'") unless defined $F{$DBFields[0]};
    
    # If the DB returns a null value, HTML::Tiny doesn't like it, so make sure nulls are converted to empty strings.
    map { $F{$_} = "" unless $F{$_} } @DBFields;
          
    if ($view eq "Update") {
      # We'd like to update that thing, give the user a form...
      print $h->p ("Updating Class: $R->{$primary}...");
      
      foreach (@DBFields) {
        $F{$_} = formField ($_, $F{$_});
      }
      $F{$DBFields[0]} .= $h->input ({ type=>"hidden", name=>$DBFields[0],   value=> $F{$DBFields[0]} });
      
      $actionbutton = formField ("choice", "Save");
      $actionbutton .= formField ("Cancel");
    } elsif ($view eq "Copy") {
      # We'd like to copy that thing, give the user a form...
      print $h->p ("Copying Question: $R->{$primary}...");
      
      foreach (@DBFields) {
        $F{$_} = formField ($_, $F{$_});
      }
      $F{$DBFields[0]} = "COPY".$h->input ({ type=>"hidden", name=>$DBFields[0], value=> "NEW" });
      
      $actionbutton = formField ("choice", "Save");
      $actionbutton .= formField ("Cancel");
    } else {
      # We're just looking at it...
      print $h->p ("Viewing Question: $R->{$primary}...");
      $F{$DBFields[0]} .= $h->input ({ type=>"hidden", name=>$DBFields[0], value=> $F{$DBFields[0]} });
      
      $F{required} = $F{required} ? "True" : "False";
      $F{private}  = $F{private}  ? "True" : "False";
      
      $actionbutton = formField ("choice", "Update") unless $LVL < RollerCon::ADMIN;
      if ($view eq "POSTSAVE" or $choice eq "View") {
        $actionbutton .= formField ("Cancel", "Back", "POSTSAVE");
      } else {
        $actionbutton .= formField ("Cancel", "Back");
      }
    }
  } else {
    error ("No Question ID provided.") unless $LVL >= RollerCon::ADMIN;
    
    print $h->p ("Adding a new Question...");

    foreach (@DBFields) {
      $F{$_} = formField ($_);
    }
                $F{$DBFields[0]} = "NEW".$h->input ({ type=>"hidden", name=>$DBFields[0], value=> "NEW" });
                
    $actionbutton = formField ("choice", "Save");
    $actionbutton .= formField ("Cancel");
  }
  
  
        print $h->open ("form", { action => url (), name=>"Req", method=>"POST" });
        print $h->div ({ class=>"sp0" },
          $h->div ({ class=>"rTable" }, [ map ({
      $h->div ({ class=>"rTableRow" }, [
        $h->div ({ class=>"rTableCell right top", style=>"font-size:unset;" }, "$fieldDisplayName{$_}: "),
        $h->div ({ class=>"rTableCell", style=>"font-size:unset;" }, $F{$_})
      ])
       } sort fieldOrder keys %FIELDS),
   ])
  );

  print $actionbutton;
  print $h->close ("form");

}

sub process_form  {
  error ("ERROR: Only SysAdmins can change games.") unless $LVL >= RollerCon::ADMIN;
  
  my %FORM;  
  foreach (keys %FIELDS) {
        if ($fieldType{$_} =~ /^text/) {
                $FORM{$_} = WebDB::trim param ($_) // "";
        } else {
                $FORM{$_} = param ($_) // "";
        }
#       warn "FORM: $_: $FORM{$_}";
  }
  $FORM{required} = 0 unless $FORM{required};
  $FORM{private}  = 0 unless $FORM{private};
  
         # check for required fields
        my @errors = ();
        foreach (@requiredFields) {
                push @errors, "$fieldDisplayName{$_} is missing." if $FORM{$_} eq "";
        }
        push @errors, "Order should be a whole number." unless $FORM{qorder} =~ /^\d+$/;
        
  if (@errors)   {
    print $h->div ({ class=>"error" }, [
          $h->p ("The following errors occurred:"),
          $h->ul ($h->li (@errors)),
          $h->p ("Please click your Browser's Back button to\n"
                   . "return to the previous page and correct the problem.")
        ]);
        return;
  }      # Form was okay.

  $FORM{qid} = saveForm (\%FORM);
        
        if ($FORM{qid}) {
          print $h->p ({ class=>"success" }, "Question successfully saved.");
        } else {
          print $h->p ({ class=>"error" }, "Question failed to save.");
        }

  display_form ({ $primary=>$FORM{qid} }, "POSTSAVE");
}

sub error {
        my $msg = shift;
        print $h->p ({ class=>"error" }, "Error: $msg");
  print $h->close("html");
        exit (0);
}

sub formField {
        my $name  = shift;
        my $value = shift // '';
        my $context = shift // '';
        my $type = $fieldType{$name} // "button";
  
  if ($type eq "button") {
                if ($name eq "Cancel") {
                  if ($context eq "POSTSAVE") {
                    return $h->input ({ type=>"button", value => $value ne '' ? $value : "Cancel" , onClick=>"window.location.href = \"class_survey_questions.pl\"; return false;" });
                  } else {
                    return $h->input ({ type=>"button", value => $value ne '' ? $value : "Cancel" , onClick=>"history.back(); return false;" });
                  }
                } else {
                        return $h->input ({ type=>"submit", value => $value, name=>$name })
                }

        } elsif ($type eq "textarea") {
          return $h->tag ("textarea", {
            name => $name,
            override => 1,
                        cols => 30,
                        rows => 4
          }, $value);           
  
  } elsif ($type eq "select") {
    no strict;
    return &{"select_".$name} ($value);
        }       elsif ($type eq "auto") {
          return $name eq "assignee_id" ? getUserDerbyName ($value) : $value;
  }     elsif ($type eq "time") {
          return $h->input ({
            name => $name,
            type => $type,
            value => $value,
            step => 900,
            required => [],
            override => 1,
            size => 30
          });
  }     elsif ($type eq "number") {
    return $h->input ({ name=>$name, type=>"number", value=>$value, step=>1 });
  }     elsif ($type eq "switch") {
    if ($value) {
      return $h->label ({ class=>"switch" }, [$h->input ({ type=>"checkbox", name=>$name, value=>1, checked=>[] }), $h->span ({ class=>"slider round" })]);
    } else {
      return $h->label ({ class=>"switch" }, [$h->input ({ type=>"checkbox", name=>$name, value=>1 }), $h->span ({ class=>"slider round" })]);
    }
        }       else {
          use tableViewer;
          if (inArray ($name, \@requiredFields)) {
          return $h->input ({
            name => $name,
            type => $type,
            value => $value,
            required => [],
            override => 1,
            size => 30
          });       
          } else {
          return $h->input ({
            name => $name,
            type => $type,
            value => $value,
            override => 1,
            size => 30
          });
        }
        }
}