#!/usr/bin/perl
#------------------------------------------------------------------------------
#    mwForum - Web-based discussion forum
#    Copyright (c) 1999-2015 Markus Wichitill
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#------------------------------------------------------------------------------

use strict;
use warnings;
no warnings qw(uninitialized);

# Imports
use Getopt::Std ();
use TyfMain;

#------------------------------------------------------------------------------

# Get arguments
my %opts = ();
Getopt::Std::getopts( 'sf:', \%opts );
my $spawned = $opts{s};
my $forumId = $opts{f};

# Init
my ( $m, $cfg, $lng ) =
  TyfMain->newShell( forumId => $forumId, spawned => $spawned );
exit if !$cfg->{subsDigest};
$m->dbBegin();

# Shortcuts
my $baseUrl = $cfg->{baseUrl} . $cfg->{scriptUrlPath};

# Get boards
my $lastSentTime =
  $m->max( $m->getVar('crnSubLst') || 0, $m->{now} - 86400 * 5 );
my $boards = $m->fetchAllHash( "
	SELECT * FROM boards WHERE lastPostTime > ?", $lastSentTime );

# Board subscriptions
for my $board (@$boards) {

    # Get posts
    my $posts = $m->fetchAllHash( "
		SELECT posts.*, topics.subject
		FROM posts AS posts
			INNER JOIN topics AS topics
				ON topics.id = posts.topicId
		WHERE posts.postTime > :lastSentTime
			AND posts.boardId = :boardId
			AND posts.approved = 1
		ORDER BY posts.topicId, posts.postTime",
        { lastSentTime => $lastSentTime, boardId => $board->{id} } );
    next if !@$posts;
    for my $post (@$posts) {
        $m->dbToEmail( {}, $post );
    }
    my $boardTitleDeesc = $m->deescHtml( $board->{title} );

    # Get subscribers
    my $subscribers = $m->fetchAllHash( "
		SELECT boardSubscriptions.unsubAuth, users.*
		FROM boardSubscriptions AS boardSubscriptions
			INNER JOIN users AS users
				ON users.id = boardSubscriptions.userId
		WHERE boardSubscriptions.boardId = :boardId
			AND boardSubscriptions.instant = 0
			AND users.email <> ''
			AND users.dontEmail = 0",
        { boardId => $board->{id} } );
    next if !@$subscribers;

    # Send to subscribers if they still have board access
    for my $subscriber (@$subscribers) {
        next if !$m->boardVisible( $board, $subscriber );
        $lng = $m->setLanguage( $subscriber->{language} );
        my $subject = "$lng->{subSubjBrdDg}: $boardTitleDeesc";
        my $body    = $lng->{subNoReply} . "\n\n" . "-" x 70 . "\n\n";
        for my $post (@$posts) {
            $body =
                $body
              . $lng->{subLink}
              . "$baseUrl/topic_show$m->{ext}?pid=$post->{id}\n"
              . $lng->{subBoard}
              . $boardTitleDeesc . "\n"
              . $lng->{subTopic}
              . $post->{subject} . "\n"
              . $lng->{subBy}
              . $post->{userNameBak} . "\n"
              . $lng->{subOn}
              . $m->formatTime( $post->{postTime}, $subscriber->{timezone} )
              . "\n\n"
              . $post->{body} . "\n\n"
              . ( $post->{rawBody} ? $post->{rawBody} . "\n\n" : "" )
              . "-" x 70 . "\n\n";
        }
        $body .= $lng->{subUnsubBrd} . "\n"
          . "$baseUrl/user_unsubscribe$m->{ext}?t=$subscriber->{unsubAuth}\n\n";
        $m->sendEmail(
            user    => $subscriber,
            subject => $subject,
            body    => $body
        );
    }
}

# Topic subscriptions
for my $board (@$boards) {

    # Get topics
    my $topics = $m->fetchAllHash( "
		SELECT id, subject FROM topics WHERE lastPostTime > ? AND boardId = ?",
        $lastSentTime, $board->{id} );

    # For each topic
    for my $topic (@$topics) {

        # Get posts
        my $posts = $m->fetchAllHash( "
			SELECT *
			FROM posts
			WHERE postTime > :lastSentTime
				AND topicId = :topicId
				AND approved = 1
			ORDER BY postTime",
            { lastSentTime => $lastSentTime, topicId => $topic->{id} } );
        next if !@$posts;
        for my $post (@$posts) {
            $m->dbToEmail( {}, $post );
        }
        my $boardTitleDeesc = $m->deescHtml( $board->{title} );

        # Get recipients
        my $subscribers = $m->fetchAllHash( "
			SELECT topicSubscriptions.unsubAuth, users.*
			FROM topicSubscriptions AS topicSubscriptions
				INNER JOIN users AS users
					ON users.id = topicSubscriptions.userId
			WHERE topicSubscriptions.topicId = :topicId
				AND topicSubscriptions.instant = 0
				AND users.email <> ''
				AND users.dontEmail = 0",
            { topicId => $topic->{id} } );
        next if !@$subscribers;

        # Send to subscribers if they still have board access
        for my $subscriber (@$subscribers) {
            next if !$m->boardVisible( $board, $subscriber );
            $lng = $m->setLanguage( $subscriber->{language} );
            my $subject = "$lng->{subSubjTpcDg}: $topic->{subject}";
            my $body    = $lng->{subNoReply} . "\n\n" . "-" x 70 . "\n\n";
            for my $post (@$posts) {
                $body =
                    $body
                  . $lng->{subLink}
                  . "$baseUrl/topic_show$m->{ext}?pid=$post->{id}\n"
                  . $lng->{subBoard}
                  . $boardTitleDeesc . "\n"
                  . $lng->{subTopic}
                  . $topic->{subject} . "\n"
                  . $lng->{subBy}
                  . $post->{userNameBak} . "\n"
                  . $lng->{subOn}
                  . $m->formatTime( $post->{postTime}, $subscriber->{timezone} )
                  . "\n\n"
                  . $post->{body} . "\n\n"
                  . ( $post->{rawBody} ? $post->{rawBody} . "\n\n" : "" )
                  . "-" x 70 . "\n\n";
            }
            $body .= $lng->{subUnsubTpc} . "\n"
              . "$baseUrl/user_unsubscribe$m->{ext}?t=$subscriber->{unsubAuth}\n\n";
            $m->sendEmail(
                user    => $subscriber,
                subject => $subject,
                body    => $body
            );
        }
    }
}

# Set last sent time
$m->setVar( 'crnSubLst', $m->{now}, 0 );

# Log action and commit
$m->logAction( 1, 'cron', 'subscr' );
$m->dbCommit();