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#!/usr/bin/perl

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 $cookie_string = authenticate (5) || die;
our ($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 = "2022";


my $pageTitle = "Manage Shift";
my $homeURL = "/schedule/";
my $DBTable = "shift";
my %FIELDS = (
        id          => [qw(ShiftID        5    auto      static )],
        dept        => [qw(Department    10    select      required )],
        role        => [qw(Role          15    text      required )],
        type        => [qw(Type          20    select      required )],
        date        => [qw(Date          25    date        required )],
        location    => [qw(Location      30    text      required )],
        start_time  => [qw(Start         35    time        required )],
        end_time    => [qw(End           40    time        required )],
        doubletime  => [qw(DoubleHours   42    switch        )],
        assignee_id => [qw(Assignee      50    auto         )],
        mod_time    => [qw(ModTime       45    number         )],
        note        => [qw(Notes         55    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 {
  my $FTS = shift;
  
  my $dbh = WebDB::connect ();
  if ($FTS->{$DBFields[0]} eq "NEW") {
    if ($FTS->{mod_time}) {
      $dbh->do (
          "INSERT INTO $DBTable
        (dept,role,type,date,location,start_time,end_time,mod_time,doubletime,note)
        VALUES(?,?,?,?,?,?,?,?,?,?)",
          undef,
          $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{mod_time}, $FTS->{doubletime}, $FTS->{note}
        );
    } else {
      $dbh->do (
          "INSERT INTO $DBTable
        (dept,role,type,date,location,start_time,end_time,doubletime,note)
        VALUES(?,?,?,?,?,?,?,?,?)",
          undef,
          $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{doubletime}, $FTS->{note}
        );      
    }
        ($FTS->{id}) = $dbh-> selectrow_array ("select max(id) from $DBTable where dept = ? and role = ? and type = ? and date = ? and location = ? and start_time = ? and end_time = ? and note = ?", undef, $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{note});
    logit ($RCid, "$username created new shift ($FTS->{id}, $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{mod_time}, $FTS->{doubletime})");
  } else {
    if ($FTS->{mod_time}) {
      $dbh->do (
        "UPDATE $DBTable
        SET dept=?, role=?, type=?, date=?, location=?, start_time=?, end_time=?, mod_time=?, doubletime=?, note=?
        WHERE id = ?",
        undef,
        $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{mod_time}, $FTS->{doubletime}, $FTS->{note}, $FTS->{id}
      );      
    } else {
      $dbh->do (
        "UPDATE $DBTable
        SET dept=?, role=?, type=?, date=?, location=?, start_time=?, end_time=?, mod_time=null, doubletime=?, note=?
        WHERE id = ?",
        undef,
        $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time}, $FTS->{doubletime}, $FTS->{note}, $FTS->{id}
      );
    }
    logit ($RCid, "$username updated shift ($FTS->{id}, $FTS->{dept}, $FTS->{role}, $FTS->{type}, $FTS->{date}, $FTS->{location}, $FTS->{start_time}, $FTS->{end_time})");
        }
        
        $dbh->disconnect ();     # stored into database successfully.
        return $FTS->{id};
}

sub delete_item {
  my $X = shift;
  my $dbh = WebDB::connect ();
  $dbh->do ("delete from $DBTable where $primary = ?", undef, $X->{$primary});
  $dbh->disconnect ();
  logit ($RCid, "$username deleted shift ($X->{$primary})");
  print "Shift Deleted: $X->{$primary}", $h->br;
  print &formField ("Cancel", "Back", "POSTSAVE");
}


sub select_dept {
        my $selection = shift;
        my @optionList;

  if ($LVL > 4) {
    @optionList = grep { !/^PER$/ } sort keys %{ $DepartmentNames };
  } else {
    @optionList = grep { $user->{department}->{$_} > 2 } keys %{ $user->{department} };
  }
  
  return $h->select ({ name=>"dept" },
    [ map { $selection eq $_ ?
              $h->option ({ value=>$_, selected=>[] }, $DepartmentNames->{$_}) :
              $h->option ({ value=>$_ }, $DepartmentNames->{$_})
          } "", @optionList ]);
};

sub select_type {
  my $value = shift // "";
  
  return $h->select ({ name=>"type" },
    [ map { $value eq $_ ?
              $h->option ({ value=>$_, selected=>[] }, $_) :
              $h->option ({ value=>$_ }, $_)
          } "", qw(open lead manager selected)]);
};

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;
  
  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 '$R->{$primary}'") unless defined $F{$DBFields[0]};
    
    if ($user->{dept}->{$F{dept}} < 3 and $LVL < 5) {
          error ("You're not a $DepartmentNames->{$F{dept}} Manager!");
    }
    
    if ($view eq "Update") {
      # We'd like to update that thing, give the user a form...
      print $h->p ("Updating Shift: $R->{$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 Shift: $R->{$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 Shift: $R->{$primary}...");
      $F{$DBFields[0]} .= $h->input ({ type=>"hidden", name=>$DBFields[0], value=> $F{$DBFields[0]} });
      $F{dept} = $DepartmentNames->{$F{dept}};
      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]");
      }
      $F{doubletime} = $F{doubletime} ? "TRUE" : "FALSE";
      
      $actionbutton = formField ("choice", "Update");
      if ($view eq "POSTSAVE") {
        $actionbutton .= formField ("Cancel", "Back", "POSTSAVE");
      } else {
        $actionbutton .= formField ("Cancel", "Back");
      }
    }
  } else {
    print $h->p ("Adding a new Shift...");

    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" }, [
        $h->div ({ class=>"rTableCell right top" }, "$fieldDisplayName{$_}: "),
        $h->div ({ class=>"rTableCell" }, $F{$_})
      ])
#      } @DBFields),
       } sort fieldOrder keys %FIELDS),
   ])
  );

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

}

sub process_form  {
  my %FORM;  
  foreach (keys %FIELDS) {
        if ($fieldType{$_} =~ /^text/) {
                $FORM{$_} = WebDB::trim param ($_) // "";
        } else {
                $FORM{$_} = param ($_) // "";           
        }
  }
        
         # check for required fields
        my @errors = ();
        foreach (@requiredFields) {
                push @errors, "$fieldDisplayName{$_} is missing." if $FORM{$_} eq "";
        }
        
  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" }, "Shift 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 = \"manage_shifts.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=>$value, step=>.25 });
  }     elsif ($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" })]);
    }
# $F->{department}->{$_} = $h->label ({ class=>"switch" }, [$h->input ({ type=>"checkbox", name=>"DEPT-$_", value=>0, checked=>[] }), $h->span ({ class=>"slider round" })]);
        }       else {
          use tableViewer;
          if (inArray ($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
          });
        }
        }
}