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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 $cookie_string = authenticate (RollerCon::USER) || die;
our ($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 MVP Class";
my $homeURL = "/schedule/";
my $DBTable = "class";
my %FIELDS = (
        id          => [qw(ClassID        5    auto        static )],
        name        => [qw(ClassName     10    text        required )],
        coach       => [qw(Coach         15    select      required )],
        date        => [qw(Date          20    date        required )],
        location    => [qw(Location      25    text        required )],
        level       => [qw(Level         27    text        required )],
        start_time  => [qw(Start         30    time        required )],
        end_time    => [qw(End           35    time        required )],
        capacity    => [qw(Capacity      40    number      required )],
        note        => [qw(Notes         45    textarea       )],
);


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
      (name,coach,date,location,level,start_time,end_time,capacity,note)
      VALUES(?,?,?,?,?,?,?,?)",
        undef,
        $FTS->{name}, $FTS->{coach}, $FTS->{date}, $FTS->{location}, $FTS->{level}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{capacity}, $FTS->{note}
    );
        ($FTS->{id}) = $dbh-> selectrow_array ("select max(id) from $DBTable where name = ? and date = ? and location = ? and start_time = ? and end_time = ?", undef, $FTS->{name}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time});
    logit ($RCid, "$username created new class ($FTS->{id}, $FTS->{name}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{capacity})");
    
    # Each class has a volunteer shift for the coach.
    $dbh->do (
      "INSERT INTO shift
      (dept,role,type,date,location,start_time,end_time,doubletime,note,assignee_id)
      VALUES (?,?,?,?,?,?,?,?,?,?)",
      undef,
      "COA", "Coach", "selected", $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, 1, $FTS->{name}, $FTS->{coach}
    );      
  } else {
    $dbh->do (
      "UPDATE $DBTable
      SET name=?, coach=?, date=?, location=?, level=?, start_time=?, end_time=?, capacity=?, note=?
      WHERE id = ?",
      undef,
      $FTS->{name}, $FTS->{coach}, $FTS->{date}, $FTS->{location}, $FTS->{level}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{capacity}, $FTS->{note}, $FTS->{id}
    );
    logit ($RCid, "$username updated class ($FTS->{id}, $FTS->{name}, $FTS->{date}, $FTS->{location}, $FTS->{level}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{capacity})");
    
    # Update the volunteer shift for the coach too.
    if ($FTS->{classshiftid}) {
      $dbh->do (
        "UPDATE shift
        SET date=?, location=?, start_time=?, end_time=?, note=?, assignee_id=?
        WHERE id = ?",
        undef,
        $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{name}, $FTS->{coach}, $FTS->{classshiftid}
      );
    } else {
      $dbh->do (
        "INSERT INTO shift
        (dept,role,type,date,location,start_time,end_time,doubletime,note,assignee_id)
        VALUES (?,?,?,?,?,?,?,?,?,?)",
        undef,
        "COA", "Coach", "selected", $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, 1, $FTS->{name}, $FTS->{coach}
      );      
    }
        }
        
        $dbh->disconnect ();     # stored into database successfully.
        return $FTS->{id};
}

sub delete_item {
  error ("ERROR: Only SysAdmins can change games.") unless $LVL >= RollerCon::ADMIN;
  
  my $X = shift;
  my $dbh = WebDB::connect ();
  
  ## First get the shift ID of the volunteer shift of the coach (and then delete it)
  my ($classshiftid) = $dbh->selectrow_array (
    "select shift.id from shift
    join class where shift.date = class.date and shift.start_time = class.start_time and shift.location = class.location and dept = ? and class.id = ?",
    undef, "COA", $X->{$primary}
  );
  $dbh->do ("delete from shift where id = ?", undef, $classshiftid);

  $dbh->do ("delete from $DBTable where $primary = ?", undef, $X->{$primary});
  ## If we're deleting a class, we need to also delete all of the sign-ups
  ##    TBD: Maybe email all of the attendees that their class is being deleted first?
  $dbh->do ("delete from assignment where Gid = ? and role like ?", undef, $X->{$primary}, "CLA".'%');
    
  $dbh->disconnect ();
  logit ($RCid, "$username deleted Class ($X->{$primary})");
  print "Class Deleted: $X->{$primary}", $h->br;
  print &formField ("Cancel", "Back", "POSTSAVE");
}


sub select_coach {
        my $selection = shift // "";
  
  return $h->select ({ name=>"coach" }, [ $h->option (""), fetchDerbyNameWithRCid ("COA", $selection) ]);
};


print header (),
                        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;
  my $coachRCid;
  
  $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});
          
          my ($classshiftid) = $dbh->selectrow_array (
            "select id from shift where dept = ? and date = ? and start_time = ? and location = ?",
            undef, "COA", $F{date}, $F{start_time}, $F{location}
          );
          $dbh->disconnect ();
          
          # did we find a record?
          error ("Cannot find a database entry for Class with id: '$R->{$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]} });
      $F{$DBFields[0]} .= $h->input ({ type=>"hidden", name=>"classshiftid", value=> $classshiftid    });
      
      $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 Class: $R->{$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 Class: $R->{$primary}...");
      $F{$DBFields[0]} .= $h->input ({ type=>"hidden", name=>$DBFields[0], value=> $F{$DBFields[0]} });
      $coachRCid = $F{coach};
      $F{coach} = $h->a ({ href=>"/schedule/view_user.pl?RCid=$F{coach}" }, getUserDerbyName $F{coach});
      
      $F{start_time} = convertTime $F{start_time};
      $F{end_time}   = convertTime $F{end_time};
#      if ($F{assignee_id}) {
#        my $temp;
#        $temp = getUserDerbyName ($F{assignee_id});
#        $temp .= "&nbsp;".$h->a ({ onClick=>"if (confirm('Really? You want to drop this person from the shift?')==true) { window.open('make_shift_change.pl?change=del&RCid=$F{assignee_id}&id=$R->{$primary}','Confirm Shift Change','resizable,height=260,width=370'); return false; }" }, "[DROP]");
#        $F{assignee_id} = $temp;
#      } else {
#        $F{assignee_id} = $h->a ({ onClick=>"window.open('make_shift_change.pl?change=lookup&id=$R->{$primary}','Confirm Shift Change','resizable,height=260,width=370'); return false;" }, "[ADD USER]");
#      }
      
      $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 Game id provided.") unless $LVL >= RollerCon::ADMIN;
    
    print $h->p ("Adding a new Class...");

    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");

  my $dbh = WebDB::connect ();
  
  my ($class_is_over) = $dbh->selectrow_array ("select 1 from v_class where $primary = ? and concat_ws(' ', date, end_time) < date_sub(now(), interval 2 hour)", undef, $R->{$primary});

#  if (($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD) and !$class_is_over) {
  if ($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD) {
    my ($count) = $dbh->selectrow_array ("select count from v_class where $primary = ?", undef, $R->{$primary});
      
    if ($F{$DBFields[0]} !~ /^(NEW|COPY)/) {
      my @A = @{$dbh->selectall_arrayref ("select role, official.RCid, derby_name from v_class_signup join official on v_class_signup.RCid = official.RCid where $primary = ? order by role", undef, $R->{$primary})};
      
      my $classkey = join '|', $F{date}, $F{start_time}, $F{location};
#      my $adduserlink  = (scalar @A < $F{capacity} and ($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD)) ? $h->a ({ style=>"color:unset;font-size:x-small;", onClick=>"window.open('make_shift_change.pl?change=lookup&RCid=$RCid&id=$classkey','Confirm Shift Change','resizable,height=260,width=370'); return false;" }, "[ADD USER]") : "";
      my $adduserlink  = ($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD) ? $h->a ({ style=>"color:unset;font-size:x-small;", onClick=>"window.open('make_shift_change.pl?change=lookup&RCid=$RCid&id=$classkey','Confirm Shift Change','resizable,height=260,width=370'); return false;" }, "[ADD USER]") : "";
      
      print $h->br, $h->br;
      print $h->div ({ class=>"index", style=>"max-width:610px" }, [ $h->p ({ class=>"heading" }, [ "Sign-ups:&nbsp;&nbsp;", $adduserlink ]),
        $h->ul ( [ map { $h->li ({ class=>"shaded", style=>"margin:4px;" },
            $h->div ({ class=>"lisp0" }, [
            $h->div ({ class=>"liLeft"  }, [ $$_[0], ":&nbsp;&nbsp;", $h->a ({ href=>"/schedule/view_user.pl?RCid=$$_[1]" }, $$_[2]) ]),
            $h->div ({ class=>"liRight" }, ($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD) ? $h->a ({ style=>"font-size:small", onClick=>"if (confirm('Really? Delete $$_[2] from this class?')==true) { window.open('make_shift_change.pl?change=del&RCid=$$_[1]&id=$R->{$primary}&role=$$_[0]','Confirm Shift Change','resizable,height=260,width=370'); return false; }" }, "[DROP]") : "") 
          ])
        ) } @A ])
      ]);
    }
  }

  if (($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD or $ORCUSER->{RCid} == $coachRCid) and $class_is_over) {
    my ($response_count) = $dbh->selectrow_array ("select count(distinct(RCid)) from v_survey_answer where classid = ?", undef, $R->{$primary});
    my $exclude_private = ($LVL >= RollerCon::ADMIN or $user->{department}->{MVP} >= RollerCon::LEAD) ? "" : "and private = 0";
    
    my @RESPONSES = @{$dbh->selectall_arrayref ("select qorder, type, question, average, qid from v_survey_results where classid = ? $exclude_private order by qorder", undef, $R->{$primary})};
    
    print $h->br, $h->br;
    print $h->div ({ class=>"index", style=>"max-width:610px" }, [ $h->p ({ class=>"heading" }, [ "Survey Results:&nbsp;&nbsp;", $response_count." Response".(($response_count > 1) ? "s" : "") ]),
      $h->ul ( [ map { $h->li ({ class=>"shaded", style=>"margin:4px;" },
        $h->div ({ class=>"lisp0" }, [
          $h->div ({ class=>"liLeft"  }, [ $$_[0], ":&nbsp;", $$_[2] ]),
          $h->div ({ class=>"liRight" }, [ $$_[1] eq "text" ? 
            $h->a ({ href=>"view_survey_comments.pl?classid=$R->{$primary}&qid=$$_[4]" }, [ $$_[3], (($$_[3] == 1) ? " comment" : " comments") ]) :
            $$_[3] ])
#          $h->div ({ class=>"liRight" }, [ $$_[3], $$_[1] eq "text" ? (($$_[3] == 1) ? " comment" : " comments") : "" ])
#          $h->div ({ class=>"liRight" }, $h->a ({ href=>"view_survey_comments.pl?classid=$R->{$primary}&qid=$$_[4]" }, $$_[3].$$_[1] eq "text" ? (($$_[3] == 1) ? " comment" : " comments") : ""))
        ])
      ) } @RESPONSES ])
    ]);


    
  }
  $dbh->disconnect;
}

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 ($_) // "";           
        }
  }
        $FORM{classshiftid} = param ("classshiftid") unless !param ("classshiftid");
        
         # check for required fields
        my @errors = ();
        foreach (@requiredFields) {
                push @errors, "$fieldDisplayName{$_} is missing." if $FORM{$_} eq "";
        }
        push @errors, "Capacity should be a whole number." unless $FORM{capacity} =~ /^\d+$/;
        
  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{id} = saveForm (\%FORM);
        
        print $h->p ({ class=>"success" }, "Class successfully saved.");

  display_form ({ $primary=>$FORM{id} }, "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 = \"classes.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
          });
        }
        }
}