<%init>
my $curuser = $FS::CurrentUser::CurrentUser;

die "access denied"
  unless $curuser->access_right('Edit customer package dates')
      or $curuser->access_right('Change package contract end date');

my %arg = $cgi->Vars;

my $contract_only = $curuser->access_right('Edit customer package dates') ? 0 : 1;
$contract_only = 1 if $arg{'contract_only'};

my $pkgnum = $arg{'pkgnum'};
$pkgnum =~ /^\d+$/ or die "bad pkgnum '$pkgnum'";
my $cust_pkg = qsearchs('cust_pkg',{'pkgnum'=>$pkgnum});
my %hash = $cust_pkg->hash;
foreach ( $contract_only ? qw( contract_end ) : qw( start_date setup bill last_bill contract_end )) {
  # adjourn, expire, resume not editable this way
  if( $arg{$_} =~ /^\d+$/ ) {
    $hash{$_} = $arg{$_};
  } elsif ( $arg{$_} ) {
    $hash{$_} = parse_datetime($arg{$_});
  } else {
    $hash{$_} = '';
  }
}

my (@changes, @confirm, @errors);

my $part_pkg = $cust_pkg->part_pkg;
my @supp_pkgs = $cust_pkg->supplemental_pkgs;
my $main_pkg = $cust_pkg->main_pkg;

my $conf = FS::Conf->new;
my $date_format = $conf->config('date_format') || '%b %o, %Y';
# Start date
if ( $hash{'start_date'} != $cust_pkg->get('start_date') and !$hash{'setup'} ) {
  my $start = '';
  $start = time2str($date_format, $hash{'start_date'}) if $hash{'start_date'};
  my $text = 'Set this package';
  if ( @supp_pkgs ) {
    $text .= ' and all its supplemental packages';
  }
  $text .= ' to start billing';
  if ( $start ) {
    $text .= ' on [_1].';
    push @changes, mt($text, $start);
  } else {
    $text .= ' immediately.';
    push @changes, mt($text);
  }
  push @confirm, '';
}

# Setup date changes
if ( $hash{'setup'} != $cust_pkg->get('setup') ) {
  my $setup = time2str($date_format, $hash{'setup'});
  my $has_setup_fee = grep { $_->part_pkg->option('setup_fee',1) > 0 }
                      $cust_pkg, @supp_pkgs;
  if ( !$hash{'setup'} ) {
    my $text = 'Remove the setup date';
    $text .= ' from this and all its supplemental packages' if @supp_pkgs;
    $text .= '.';
    push @changes, mt($text);
    if ( $has_setup_fee ) {
      push @confirm, mt('This will re-charge the customer for the setup fee.');
    } else {
      push @confirm, '';
    }
  } elsif ( $hash{'setup'} and !$cust_pkg->get('setup') ) {
    my $text = 'Add a setup date of [_1]';
    $text .= ' to this and all its supplemental packages' if @supp_pkgs;
    $text .= '.';
    push @changes, mt($text, $setup);
    if ( $has_setup_fee ) {
      push @confirm, mt('This will prevent charging the setup fee.');
    } else {
      push @confirm, '';
    }
  } else {
    my $text = 'Set the setup date to [_1]';
    $text .= ' on this and all its supplemental packages' if @supp_pkgs;
    $text .= '.';
    push @changes, mt($text, $setup);
    push @confirm, '';
  }
}

# Check for start date + setup date
if ( $hash{'start_date'} and $hash{'setup'} ) {
  if ( $cust_pkg->get('setup') ) {
    push @errors, mt('Since the package has already started billing, it '.
                     'cannot have a start date.');
  } else {
    push @errors, mt('You cannot set both a start date and a setup date on '.
                     'the same package.');
  }
}

# Last bill date change
if ( $hash{'last_bill'} != $cust_pkg->get('last_bill') ) {
  my $last_bill = time2str($date_format, $hash{'last_bill'});
  my $name = 'last bill date';
  $name = 'last renewal date' if $part_pkg->is_prepaid;
  if ( $hash{'last_bill'} ) {
    push @changes, mt('Set the [_1] to [_2].', $name, $last_bill);
  } else {
    push @changes, mt('Remove the [_1].', $name);
  }
  push @confirm, '';
  # I don't think we want to adjust this on supplemental packages.
}

# Bill date change
if ( $hash{'bill'} != $cust_pkg->get('bill') ) {
  my $bill = time2str($date_format, $hash{'bill'});
  $bill = 'today' if !$hash{'bill'}; # or 'the end of today'?...
  my $name = 'next bill date';
  $name = 'end of the prepaid period' if $part_pkg->is_prepaid;
  push @changes, mt('Set the [_1] to [_2].', $name, $bill);

  if ( $hash{'bill'} < time and $hash{'bill'} ) {
    push @confirm, 
      mt('The customer will be charged for the interval from [_1] until now.',
         $bill);
  } elsif ( !$hash{'bill'} and ($hash{'last_bill'} or $hash{'setup'}) ) {
    my $last_bill = 
      time2str($date_format, $hash{'last_bill'} || $hash{'setup'});
    push @confirm,
      mt('The customer will be charged for the interval from [_1] until now.',
        $last_bill);
  } else {
    push @confirm, '';
  }

  if ( @supp_pkgs ) {
    push @changes, '';
    if ( $cust_pkg->get('bill') and $hash{'bill'} ) {
      # the package already has a bill date, so adjust the dates 
      # of supplementals by the same interval
      my $diff = $hash{'bill'} - $cust_pkg->get('bill');
      my $sign = $diff < 0 ? -1 : 1;
      $diff = $diff * $sign / 86400;
      if ( $diff < 1 ) {
        $diff = mt('[quant,_1,hour]', int($diff * 24));
      } else {
        $diff = mt('[quant,_1,day]', int($diff));
      }
      push @confirm,
        mt('[_1] supplemental package will also be billed [_2] [_3].',
            (@supp_pkgs > 1 ? 'Each' : 'The'),
            $diff,
            ($sign > 0 ? 'later' : 'earlier')
        );
    } else {
      # the package hasn't been billed yet, or you've set bill = null
      push @confirm,
        mt('[_1] supplemental package will also be billed on [_2].',
            (@supp_pkgs > 1 ? 'Each' : 'The'),
            $bill
        );
    }
  } #if @supp_pkgs

  if ( $main_pkg ) {
    push @changes, '';
    push @confirm,
      mt('This package is a supplemental package.  The bill date of its '.
         'main package will not be adjusted.');
  }
}

# Contract end change
if ( $hash{'contract_end'} != $cust_pkg->get('contract_end') ) {
  if ( $hash{'contract_end'} ) {
    my $contract_end = time2str($date_format, $hash{'contract_end'});
    push @changes,
      mt('Set this package\'s contract end date to [_1]', $contract_end);
  } else {
    push @changes, mt('Remove this package\'s contract end date.');
  }
  if ( @supp_pkgs ) {
    my $text = 'This change will also apply to ' .
      (@supp_pkgs > 1 ?
        'all supplemental packages.':
        'the supplemental package.');
    push @confirm, mt($text);
  } else {
    push @confirm, '';
  }
}

my $title = '';
if ( @errors ) {
  $title = 'Error changing package dates';
} else {
  $title = 'Confirm date changes';
}
</%init>
<& /elements/header-popup.html, { title => $title, etc => 'BGCOLOR=""' } &>
<STYLE TYPE="text/css">
.error { 
  color: #ff0000;
  font-weight: bold;
  text-align: center;
}
.confirm { color: #ff0000 }
.button-container {
  position: fixed;
  bottom: 5px;
  text-align: center;
  width: 100%
}
</STYLE>
<DIV STYLE="text-align: center; padding:1em">
<% emt('Package #') %><B><% $pkgnum %></B>: <B><% $cust_pkg->part_pkg->pkg %></B><BR>
% if ( @changes ) {
  <% emt('The following changes will be made:') %>
% } else {
  <% emt('No changes will be made.') %>
% }
</DIV>
<TABLE WIDTH="100%">
% if ( @errors ) {
%   foreach my $error ( @errors ) {
<TR>
  <TD><IMG SRC="<%$p%>images/cross.png"></TD>
  <TD CLASS="error"><% $error %></TD>
</TR>
%   }
% } else {
%   while (@changes, @confirm) {
%     my $text = shift @changes;
%     if (length $text) {
<TR>
  <TD><IMG SRC="<%$p%>images/tick.png"></TD>
  <TD><% $text %></TD>
</TR>
%     }
%     $text = shift @confirm;
%     if (length $text) {
<TR>
  <TD>
    <INPUT TYPE="checkbox" NAME="areyousure" VALUE=1 onclick="submit_ready()">
  </TD>
  <TD CLASS="confirm"><% $text %></TD>
</TR>
%     }
%   }
% }
</TABLE>
%# action buttons
<DIV CLASS="button-container">
  <BUTTON TYPE="button" STYLE="width:145px" ID="submit_cancel"\
    onclick="submit_cancel()">
    <IMG SRC="<%$p%>images/cross.png" ALT=""> Cancel
  </BUTTON>
% if (!@errors ) {
  <BUTTON TYPE="button" STYLE="width:145px" ID="submit_continue"\
    onclick="submit_continue()">
    <IMG SRC="<%$p%>images/tick.png" ALT=""> Continue
  </BUTTON>
</DIV>
% }
<FORM NAME="DateEditForm" STYLE="display:none" TARGET="_parent" ACTION="<%$p%>edit/process/REAL_cust_pkg.cgi" METHOD="POST">
% foreach (keys %hash) {
<INPUT TYPE="hidden" NAME="<%$_%>" VALUE="<% $hash{$_} |h%>">
% }
% if ($contract_only) {
<INPUT TYPE="hidden" NAME="contract_only" VALUE="1">
% }
</FORM>
<SCRIPT>
function submit_ready() {
  var ready = true;
  var checkboxes = document.getElementsByName('areyousure');
  var i;
  for (i=0; i < checkboxes.length; i++) {
    if (! checkboxes[i].checked ) {
      ready = false;
    }
  }
  document.getElementById('submit_continue').disabled = !ready;
  return ready;
}
function submit_cancel() {
  parent.nd(1);
}
function submit_continue() {
  if ( submit_ready() ) {
    document.forms.DateEditForm.submit();
  }
}
submit_ready();
</SCRIPT>
<& /elements/footer.html &>