# Selima Website Content Management System
# Page.pm: The base web page form data processor.

#  Copyright (c) 2006-2018 imacat.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

# Author: imacat <imacat@mail.imacat.idv.tw>
# First written: 2006-04-02

package Selima::Processor::Page;
use 5.008;
use strict;
use warnings;
use base qw(Selima::Processor);

use Selima::DataVars qw(:addcol :scptconf);
use Selima::Guest;
use Selima::ShortCut;

# new: Initialize the processor
sub new : method {
    local ($_, %_);
    my ($self, $class);
    ($class, @_) = @_;
    $_[1] = "pages" if @_ < 2;
    $self = $class->SUPER::new(@_);
    return $self;
}

# _save_cols: Save the column deposit
sub _save_cols : method {
    local ($_, %_);
    my ($self, $form, $cur);
    $self = $_[0];
    ($form, $cur) = ($self->{"form"}, $self->{"cur"});
    # A form to create a new item
    if ($self->{"type"} eq "new") {
        $self->{"sn"} = $self->_new_sn;
        $self->{"cols"} = new Selima::AddCol($self->{"table"}, ADDCOL_INSERT);
        $self->{"cols"}->addnum("sn", $self->{"sn"});
        $self->{"cols"}->addstr("path", $self->_form("path"));
        $self->{"cols"}->addnum("ord", $self->_form("ord"));
        $self->{"cols"}->addstr("title", $self->_form("title"));
        $self->{"cols"}->addstr("body", $self->_form("body"));
        $self->{"cols"}->addstr("kw", $self->_form("kw"));
        $self->{"cols"}->addbool("html", $self->_form("html"));
        $self->{"cols"}->addbool("hid", $self->_form("hid"));
        # Automatic Traditional Chinese to Simplified Chinese conversion
        $self->_zhsync;
    
    # A form to edit a current item
    } elsif ($self->{"type"} eq "cur") {
        $self->{"cols"} = new Selima::AddCol($self->{"table"}, ADDCOL_UPDATE);
        $self->{"cols"}->addstr("path", $self->_form("path"), scalar $cur->param("path"));
        $self->{"cols"}->addnum("ord", $self->_form("ord"), scalar $cur->param("ord"));
        $self->{"cols"}->addstr("title", $self->_form("title"), scalar $cur->param("title"));
        $self->{"cols"}->addstr("body", $self->_form("body"), scalar $cur->param("body"));
        $self->{"cols"}->addstr("kw", $self->_form("kw"), scalar $cur->param("kw"));
        $self->{"cols"}->addbool("html", $self->_form("html"), scalar $cur->param("html"));
        $self->{"cols"}->addbool("hid", $self->_form("hid"), scalar $cur->param("hid"));
        # Automatic Traditional Chinese to Simplified Chinese conversion
        $self->_zhsync;
    }
    return;
}

# _actlog: Log the activity
sub _actlog : method {
    local ($_, %_);
    my ($self, $form, $cur);
    $self = $_[0];
    ($form, $cur) = ($self->{"form"}, $self->{"cur"});
    # A form to create a new item
    return gactlog "Create a page " . $form->param("path")
            . " with s/n " . $self->{"sn"} . "."
        if $self->{"type"} eq "new";
    # A form to edit a current item
    return gactlog "Update the page " . $form->param("path")
            . " with s/n " . $self->{"sn"} . "."
        if $self->{"type"} eq "cur";
    # A form to delete a current item
    return gactlog "Delete the page " . $cur->param("path")
            . " with s/n " . $self->{"sn"} . "."
        if $self->{"type"} eq "del";
}

# _ret_status: Return the process status
sub _ret_status : method {
    local ($_, %_);
    my $self;
    $self = $_[0];
    return {"msg"=>N_("This page was not modified."),
            "isform"=>0}
        if !$self->_modified;
    # A form to create a new item
    return {"msg"=>N_("This page has been successfully added."),
            "isform"=>0}
        if $self->{"type"} eq "new";
    # A form to edit a current item
    return {"msg"=>N_("This page has been successfully updated."),
            "isform"=>0}
        if $self->{"type"} eq "cur";
    # A form to delete a current item
    return {"msg"=>N_("This page has been successfully deleted."),
            "isform"=>0}
        if $self->{"type"} eq "del";
}

# _rebuild_partial_pages: Rebuild a limited part of pages
sub _rebuild_partial_pages : method {
    local ($_, %_);
    my ($self, $form, $cur);
    my $sql;
    $self = $_[0];
    ($form, $cur) = ($self->{"form"}, $self->{"cur"});
    # Remove the unwanted pages
    $self->_remove_curfile;
    # Nothing to rebuild when no shown parts are seen
    return if $self->{"type"} eq "del" || defined $form->param("hid");
    
    # Compose the SQL statement
    $sql = "SELECT * FROM pages"
        . " WHERE sn=" . $self->{"sn"} . ";\n";
    # Rebuild the pages
    $_ = $MAIN->can("rebuild_pages");
    &$_($sql);
    return;
}

# _remove_curfile: Remove the unwanted pages
sub _remove_curfile : method {
    local ($_, %_);
    my ($self, $form, $cur);
    $self = $_[0];
    ($form, $cur) = ($self->{"form"}, $self->{"cur"});
    # Nothing to remove if there is no current page
    return if $self->{"type"} eq "new" || $cur->param("hid");
    # A current page to be deleted or hidden
    return grmoldpage $cur->param("path")
        if $self->{"type"} eq "del" || defined $form->param("hid");
    # A shown page update with a new page path to check with
    return grmoldpage $cur->param("path"), $form->param("path");
    return;
}

return 1;