#!/usr/bin/perl -w
#
# CrossSell.pm:
# Adverts from FixMyStreet to another site.
#
# Unlike the PHP crosssell script, returns strings rather than prints them;
# and currently displays the same advert if e.g. there's a connection problem.
# 
# Copyright (c) 2007 UK Citizens Online Democracy. All rights reserved.
# Email: matthew@mysociety.org. WWW: http://www.mysociety.org
#
# $Id: CrossSell.pm,v 1.17 2009-09-10 09:36:42 matthew Exp $

# Config parameters site needs set to call these functions:
# OPTION_AUTH_SHARED_SECRET
# OPTION_HEARFROMYOURMP_BASE_URL

package CrossSell;

use strict;
use LWP::Simple qw($ua get);
$ua->timeout(5);
use URI::Escape;
use mySociety::AuthToken;
use mySociety::Web qw(ent);

sub display_random_hfymp_advert {
    my ($email, $name, $text) = @_;
    $name ||= '';
    my $auth_signature = mySociety::AuthToken::sign_with_shared_secret($email, mySociety::Config::get('AUTH_SHARED_SECRET'));

    # See if already signed up
    my $url = mySociety::Config::get('HEARFROMYOURMP_BASE_URL');
    my $already_signed = get($url . '/authed?email=' . uri_escape($email) . "&sign=" . uri_escape($auth_signature));
    # Different from PHP version; display this advert if e.g. connection problem
    return '' if $already_signed && $already_signed eq 'already signed';

    $email = ent($email);
    $name = ent($name);
    $auth_signature = ent($auth_signature);
    $text =~ s#\[form\]#<form action="http://www.hearfromyourmp.com/" method="post">
<input type="hidden" name="name" value="$name">
<input type="hidden" name="email" value="$email">
<input type="hidden" name="sign" value="$auth_signature">
<h2><input style="font-size:100%" type="submit" value="#;
    $text =~ s#\[/form\]#"></h2>#;

    return '<div id="advert_hfymp">' . $text . '</div>';
}

sub display_random_gny_advert {
    my ($email, $name, $text) = @_;
    return '<div id="advert_thin">' . $text . '</div>';
}

sub display_random_twfy_alerts_advert {
    my ($email, $name, $text) = @_;
    my $auth_signature = mySociety::AuthToken::sign_with_shared_secret($email, mySociety::Config::get('AUTH_SHARED_SECRET'));
    $text =~ s#\[button\]#<form action="http://www.theyworkforyou.com/alert/" method="post">
<input type="hidden" name="email" value="$email">
<input type="hidden" name="sign" value="$auth_signature">
<input type="hidden" name="site" value="fms">
<input style="font-size:150%" type="submit" value="#;
    $text =~ s#\[/button\]#"></p>#;
    return '<div id="advert_thin">' . $text . '</div>';
}

sub display_hfyc_cheltenham_advert {
    my ($email, $name) = @_;
    $name ||= '';
    my $auth_signature = mySociety::AuthToken::sign_with_shared_secret($email, mySociety::Config::get('AUTH_SHARED_SECRET'));

    # See if already signed up
    my $already_signed = get('http://cheltenham.hearfromyourcouncillor.com/authed?email=' . uri_escape($email) . "&sign=" . uri_escape($auth_signature));
    # Different from PHP version; display this advert if e.g. connection problem
    return '' if $already_signed && $already_signed eq 'already signed';

    # If not, display advert
    $email = ent($email);
    $name = ent($name);
    $auth_signature = ent($auth_signature);
    my $out = <<EOF;
<form action="http://cheltenham.hearfromyourcouncillor.com/" method="post">
<input type="hidden" name="name" value="$name">
<input type="hidden" name="email" value="$email">
<input type="hidden" name="sign" value="$auth_signature">
<div id="advert_thin">
EOF

    my $rand = int(rand(2));
    if ($rand == 0) {
        $out .= "<h2>Cool! You're interested in Cheltenham!</h2>
        <p>We've got an exciting new free service that works exclusively
        for people in Cheltenham. Please sign up to help the charity
        that runs WriteToThem, and to get a sneak preview of our new
        service.</p>";
    } else {
        $out .= "<h2>Get to know your councillors.</h2>
        <p>Local councillors are really important, but hardly anyone knows them.
        Use our new free service to build a low-effort, long term relationship
        with your councillor.</p>";
    }
    $out .= <<EOF;
<p align="center">
<input type="submit" value="Sign up to HearFromYourCouncillor">
</p>
</div>
</form>
EOF
    return ($out, "cheltenhamhfyc$rand");
}

sub display_democracyclub {
    my (%input) = @_;
    return <<EOF;
<div id="advert_thin">
<h2 style="margin-bottom:0">Help make the next election the most accountable ever</h2> <p style="font-size:120%;margin-top:0.5em;"><a href="http://www.democracyclub.org.uk/">Join Democracy Club</a> and have fun keeping an eye on your election candidates. <a href="http://www.democracyclub.org.uk/">Sign me up</a>!
</div>
EOF
}

sub display_news_form {
    my (%input) = @_;
    my %input_h = map { $_ => $input{$_} ? ent($input{$_}) : '' } qw(name email signed_email);
    my $auth_signature = $input_h{signed_email};
    return <<EOF;
<h1 style="padding-top:0.5em">mySociety newsletter</h1>

<p>Interested in hearing more about FixMyStreet successes? Enter your email
address below and we&rsquo;ll send you occasional emails about what mySociety
and our users have been up to.</p>

<form method="post" action="https://secure.mysociety.org/admin/lists/mailman/subscribe/news">
<label for="name">Name:</label>
<input type="text" name="fullname" id="name" value="$input_h{name}" size="30">
<br><label for="email">Email:</label>
<input type="text" name="email" id="email" value="$input_h{email}" size="30">
&nbsp; <input type="submit" value="Add me to the list">
</form>

<p>mySociety respects your privacy, and we'll never sell or give away your private
details. You can unsubscribe at any time.</p>
EOF
}

# Not currently used, needs more explanation and testing; perhaps in future.
sub display_gny_groups {
    my ($lon, $lat) = @_;
    my $groups = get("http://www.groupsnearyou.com/rss.php?q=$lon,$lat&category=1&pointonly=1");
    my $out = '';
    my $count = 0;
    while ($groups =~ /<item>\s*<title>New group! (.*?)<\/title>.*?<guid isPermaLink="true">(.*?)<\/guid>.*?<description>(.*?)<\/description>/gs) {
        $out .= "<li><a href='$2'>$1</a> $3";
        $count++;
    }
    return unless $out;
    return <<EOF;
<h1 style="padding-top:0.5em">$count local groups</h1>
<ul>
$out
</ul>
EOF
}

# Choose appropriate advert and display it.
# $this_site is to stop a site advertising itself.
sub display_advert ($$;$%) {
    my ($c, $email, $name, %data) = @_;

    return '' unless $c->cobrand->moniker eq 'fixmystreet';

    #if (defined $data{council} && $data{council} eq '2326') {
    #    my ($out, $ad) = display_hfyc_cheltenham_advert($email, $name);
    #    if ($out) {
    #        $c->stash->{scratch} = "advert=$ad";
    #        return $out;
    #    }
    #}

    #if ($data{lat}) {
    #    my $out = display_gny_groups($data{lon}, $data{lat});
    #    if ($out) {
    #        $c->stash->{scratch} = 'advert=gnygroups';
    #        return '<div style="margin: 0 5em; border-top: dotted 1px #666666;">'
    #            . $out . '</div>';
    #    }
    #}

    #$c->stash->{scratch} = 'advert=demclub0';
    #return display_democracyclub();

#    return <<EOF;
#<div id="advert_thin">
#<p>Do you have an issue that&rsquo;s too big for FixMyStreet?
#It could be time to petition your council. Try our new site:
#<h2 style="margin-top:0; font-size: 150%">
#<a href="http://www.petitionyourcouncil.com/">PetitionYourCouncil</a></p>
#</h2>
#</div>
#EOF

    #unless (defined $data{done_tms} && $data{done_tms}==1) {
    $c->stash->{scratch} = 'advert=news';
    my $auth_signature = '';
    unless (defined $data{emailunvalidated} && $data{emailunvalidated}==1) {
        $auth_signature = mySociety::AuthToken::sign_with_shared_secret($email, mySociety::Config::get('AUTH_SHARED_SECRET'));
    }
    return '<div style="margin: 0 5em; border-top: dotted 1px #666666;">'
        . display_news_form(email => $email, name => $name, signed_email => $auth_signature)
        . '</div>';
    #}

    my @adverts = (
        [ 'gny0', '<h2>Are you a member of a local group&hellip;</h2> &hellip;which uses the internet to coordinate itself, such as a neighbourhood watch? If so, please help the charity that runs FixMyStreet by <a href="http://www.groupsnearyou.com/add/about/">adding some information about it</a> to our new site, GroupsNearYou.' ],
        [ 'gny1', '<h2>Help us build a map of the world&rsquo;s local communities &ndash;<br><a href="http://www.groupsnearyou.com/add/about/">Add one to GroupsNearYou</a></h2>' ],
        #  Since you're interested in your local area, why not
        #  start a long term relationship with your MP?
        #[ 'hfymp0', '<h2 style="margin-bottom:0">Get email from your MP in the future</h2> <p style="font-size:120%;margin-top:0;">and have a chance to discuss what they say in a public forum [form]Sign up to HearFromYourMP[/form]' ],
        #[ 'twfy_alerts0', '<h2>Get emailed every time your MP says something in Parliament</h2> [button]Keep an eye on them for free![/button]' ],
    );
    while (@adverts) {
        my $rand = int(rand(scalar @adverts));
        next unless $adverts[$rand];
        my ($advert_id, $advert_text) = @{$adverts[$rand]};
        (my $advert_site = $advert_id) =~ s/\d+$//;
        my $func = "display_random_${advert_site}_advert";
        no strict 'refs';
        my $out = &$func($email, $name, $advert_text);
        use strict 'refs';
        if ($out) {
            $c->stash->{scratch} = "advert=$advert_id";
            return $out;
        }

        for (my $i=0; $i<@adverts; $i++) {
            (my $a = $adverts[$i][0]) =~ s/\d+$//;
            delete $adverts[$i] if $advert_site eq $a;
        }
    }

    $c->stash->{scratch} = 'advert=pb';
    return <<EOF;
<div id="advert_thin">
<h2 style="font-size: 150%">
If you're interested in improving your local area,
<a href="http://www.pledgebank.com/">use PledgeBank</a> to
do so with other people!</h2>
</div>
EOF
}

1;