<?php

use classes\lib\BatchJob;
use classes\lib\EmailEngine;

 require('_mod_security.php'); ?>
<?php
	$ar_rsvp_status = ['rsvp', 'attended', 'conf', 'cancel', 'wait'];
	switch ($_GET['func']) :
		case 'send_email' :	
			$template_id = nz($_POST['id'], '0');
			$limit = '';
			if ($_POST['test_mode'] === '1') :
				$limit = ' LIMIT ' . nz($_POST['test_email_limit'], '1');
			endif;
			if (is_null($_POST['contact_type']) || !array_key_exists((int)$_POST['contact_type'], APP_CONTACT_STATUSES)) :
				echo '<p>Error! Contact Status missing or invalid.</p>';
				return;
			endif;
			$contact_status = (int)$_POST['contact_type'];
			if ($_POST['email_selection'] === 'all') :
				$search = '';
				$venue_status = '1';
			elseif ($_POST['email_selection'] === 'specific') :
				$ar_contacts_selected = array_keys($_POST['contact_selected'] ?? []);
				$search = " AND c.id IN (" . implode(',', $ar_contacts_selected) . ") ";
				$venue_status = '1,2';
			else :
				echo '<p>Error! Invalid All/Specific selection.</p>';
				return;
			endif;
			$sql = "SELECT c.*, v.name AS venue_name FROM contacts c JOIN venues v ON (v.id = c.venue_id) WHERE c.status = {$contact_status} AND c.email > '' AND v.status IN ({$venue_status}) " . $search . $limit;
			$result = $db->query($sql);
			$row_count = $result->rowCount();
			$count = 0;
			$count_ok = 0;
			$count_err = 0;
			$html = '';
			if ($row_count > 0) :
				if ($_GET['action'] == 'send') :
					$batch_job = new BatchJob(reference_id: $template_id, job_type: 'batch_email');
				elseif ($_GET['action'] == 'preview') :
					$html .= '<p>'.$row_count.' emails selected for processing.</p>';
					$html .= '<hr style="color:#262626; background-color:#262626; height:3px;" />';
				endif;
				$i = 0;
				$ar_placeholders = [];
				while ($i < $result->columnCount()) :
					$meta = $result->getColumnMeta($i);
					if ($meta) :
						$ar_placeholders[] = strtolower($meta['name']);
					endif;
					$i++;
				endwhile;
				$ar_placeholders[] = 'form_link';
				$ar_placeholders[] = '/form_link';
				while ($row = $result->fetch(PDO::FETCH_OBJ)) :
					$count++;
					$email_body = $_POST['html'];
					$email_subject = $_POST['subject'];
					$hash_key = sys_encrypt_string($row->id);
					foreach ($ar_placeholders as $key) :
						switch ($key) :
							case 'form_link' :
								$value = '<a target="_blank" href="'.APP_BASE_SECURE.'venue_update?key='.urlencode($hash_key).'">';
								break;
							case '/form_link' :
								$value = '</a>';
								break;
							default :
								$value = $row->{$key};
						endswitch;
						$email_body = str_replace('['.$key.']', $value, $email_body);
					endforeach;
					if ($_POST['test_mode'] === '1') :
						$email_to = $_POST['test_email_address'];
						$email_cc = '';
						$email_bcc = '';
					else :
						$email_to = $row->email;
						$email_cc = $_POST['cc'];
						$email_bcc = $_POST['bcc'];
					endif;
					if ($_GET['action'] == 'preview') :
						$html .= '<p>';
						$html .= '<b>FROM:</b> '.$_POST['reply_name'].' &lt;'.$_POST['reply_address'].'&gt;<br />';
						$html .= '<b>TO:</b> '.$email_to.'<br />';
						$html .= '<b>CC:</b> '.$email_cc.'<br />';
						$html .= '<b>BCC:</b> '.$email_bcc.'<br />';
						$html .= '<b>SUBJECT:</b> '.$email_subject.'<br />';
						if (!empty($_POST['attachment_1_filename'])) :
							$html .= '<b>ATTACHMENT 1:</b> <a href="ajax.php?call=_file_download&id='.$template_id.'&type=batch_email_attachment&ordinal=1" >'.$_POST['attachment_1_filename'].'</a><br />';
						endif;
						if (!empty($_POST['attachment_2_filename'])) :
							$html .= '<b>ATTACHMENT 2:</b> <a href="ajax.php?call=_file_download&id='.$template_id.'&type=batch_email_attachment&ordinal=2" >'.$_POST['attachment_2_filename'].'</a><br />';
						endif;
						$html .= '</p>';
						$html .= '<p style="font-family:Arial, Helvetica, sans-serif; font-size:14px;">';
						$html .= $email_body;
						$html .= '</p>';
						$html .= '<hr style="color:#262626; background-color:#262626; height:3px;" />';
					elseif ($_GET['action'] == 'send') :
						$attachments = [];
						$uploaddir = APP_UPLOAD_DIR.'/batch_email_attachments/'.str_pad($template_id, 10, '0', STR_PAD_LEFT);
						if (!empty($_POST['attachment_1_filename'])) :
							$attachments[] = $uploaddir . '/' . $_POST['attachment_1_filename'];
						endif;
						if (!empty($_POST['attachment_2_filename'])) :
							$attachments[] = $uploaddir . '/' . $_POST['attachment_2_filename'];
						endif;
						EmailEngine::add_to_queue($batch_job->get_job_id(), $email_subject, $email_to, $email_cc, $email_bcc, $email_body, $attachments, [], $_POST['reply_address'], $_POST['reply_name'], $_POST['reply_address']);
					endif;
				endwhile;
				if ($_GET['action'] == 'send') :
					$html = '<p>Sent successfully: '.$count_ok.'</p>'.
							'<p>Errors: '.$count_err.'</p>'.
							$html;
					session_write_close();
					$batch_job->start('process_email_queue', [$batch_job->get_job_id()]);
				endif;
				if ($_GET['action'] == 'send') :
				else :
					echo $html;
				endif;
			else :
				$html .= 'No data for report!';
				echo $html;
			endif;
			break;
	endswitch;