#! /usr/bin/perl -w
# Emily Wu's Website
# 1-guestbook.cgi: The guestbook.

#  Copyright (c) 2003-2021 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: 2003-04-07

use 5.008;
use utf8;
use strict;
use warnings;
use lib $ENV{"DOCUMENT_ROOT"} . qw(/magicat/lib/perl5);
use Selima::emily;
local $SIG{"__DIE__"} = \&http_500;
my $d = new Selima::Destroy;
# Prototype declaration
sub main();
sub check_get();
sub check_post();
sub html_page($);
sub html_foreword();

initenv(-session    => 0,
        -this_table => "guestbook",
        -dbi_lock   => {"guestbook"             => LOCK_EX},
        -lastmod    => 1,
        -page_param => {"keywords"      => N_("guestbook"),
                        "class"         => "guestbook",
                        "javascripts"   => [qw(/scripts/guestbook.js)]});

main;
exit 0;

sub main() {
    local ($_, %_);
    my ($error, $processor);
    
    # If the request is a GET query
    if ($ENV{"REQUEST_METHOD"} ne "POST") {
        $error = check_get;
        # If an error occurs
        if (defined $error) {
            html_page $error;
        
        # Display the page
        } else {
            html_page retrieve_status;
        }
    
    # If a form was POSTed from the client
    } else {
        $error = check_post;
        # If an error occurs
        if (defined $error) {
            error_redirect $error;
        
        # Else, save the data
        } else {
            $processor = new Selima::emily::Processor::Guestbook::Public($POST);
            $processor->process;
            http_303 $REQUEST_FILE;
        }
    }
    return;
}

# check_get: Check the GET arguments
sub check_get() {
    local ($_, %_);
    # Old styled page number
    http_301 $REQUEST_FILE if defined $GET->param("no");
    # List handler handles its own error
    return;
}

# check_post: Check the POSTed form
sub check_post() {
    local ($_, %_);
    my ($checker, $error);
    # Run the checker
    $checker = new Selima::emily::Checker::Guestbook::Public(curform);
    $error = $checker->check(qw(message name identity location
        email url flood dup spam));
    return $error if defined $error;
    # OK
    return;
}

# html_page: Display the page
sub html_page($) {
    local ($_, %_);
    my ($status, $LIST, $FORM, $args);
    $status = $_[0];
    $FORM = new Selima::emily::Form::Guestbook::Public($status);
    $LIST = new Selima::emily::List::Guestbook::Public;
    $args = $LIST->page_param;
    html_header "留言板", $args;
    html_foreword;
    html_errmsg $status;
    $FORM->html;
    $LIST->html;
    html_footer $args;
    return;
}


##################################
# Subroutines to manage the data #
##################################
# html_foreword: Print the HTML foreword
sub html_foreword() {
    local ($_, %_);
    print << "EOT";
<div class="foreword">
<p>若您有任何需要或疑問，請在此留言，我將儘速為您服務。</p>
</div>

EOT
    return;
}

no utf8;