Files
tougao/application/common/PromotionService.php
2026-03-13 17:19:34 +08:00

325 lines
12 KiB
PHP

<?php
namespace app\common;
use think\Db;
use think\Cache;
use think\Queue;
use PHPMailer\PHPMailer\PHPMailer;
class PromotionService
{
private $logFile;
public function __construct()
{
$this->logFile = ROOT_PATH . 'runtime' . DS . 'promotion_task.log';
}
/**
* Process the next email in a promotion task (called by queue job)
*/
public function processNextEmail($taskId)
{
$task = Db::name('promotion_task')->where('task_id', $taskId)->find();
if (!$task) {
return ['done' => true, 'reason' => 'task_not_found'];
}
if ($task['state'] != 1) {
return ['done' => true, 'reason' => 'task_not_running', 'state' => $task['state']];
}
$currentHour = intval(date('G'));
if ($currentHour < $task['send_start_hour'] || $currentHour >= $task['send_end_hour']) {
$this->enqueueNextEmail($taskId, 300);
return ['done' => false, 'reason' => 'outside_send_window', 'retry_in' => 300];
}
if ($task['sent_count'] > 0 && $task['max_bounce_rate'] > 0) {
$bounceRate = ($task['bounce_count'] / $task['sent_count']) * 100;
if ($bounceRate >= $task['max_bounce_rate']) {
Db::name('promotion_task')->where('task_id', $taskId)->update([
'state' => 2,
'utime' => time(),
]);
$this->log("Task {$taskId} auto-paused: bounce rate {$bounceRate}% >= {$task['max_bounce_rate']}%");
return ['done' => true, 'reason' => 'auto_paused_bounce_rate', 'bounce_rate' => $bounceRate];
}
}
$logEntry = Db::name('promotion_email_log')
->where('task_id', $taskId)
->where('state', 0)
->order('log_id asc')
->find();
if (!$logEntry) {
Db::name('promotion_task')->where('task_id', $taskId)->update([
'state' => 3,
'utime' => time(),
]);
return ['done' => true, 'reason' => 'all_emails_processed'];
}
$expert = Db::name('expert')->where('expert_id', $logEntry['expert_id'])->find();
if (!$expert || $expert['state'] == 4 || $expert['state'] == 5) {
Db::name('promotion_email_log')->where('log_id', $logEntry['log_id'])->update([
'state' => 2,
'error_msg' => 'Expert invalid or deleted (state=' . (isset($expert['state']) ? $expert['state'] : 'null') . ')',
'send_time' => time(),
]);
Db::name('promotion_task')->where('task_id', $taskId)->setInc('fail_count');
Db::name('promotion_task')->where('task_id', $taskId)->update(['utime' => time()]);
$this->enqueueNextEmail($taskId, 2);
return ['done' => false, 'skipped' => $logEntry['email_to'], 'reason' => 'expert_invalid'];
}
$account = $this->pickSmtpAccountForTask($task);
if (!$account) {
$this->enqueueNextEmail($taskId, 600);
return ['done' => false, 'reason' => 'no_smtp_quota', 'retry_in' => 600];
}
$journal = Db::name('journal')->where('journal_id', $task['journal_id'])->find();
$expertVars = $this->buildExpertVars($expert);
$journalVars = $this->buildJournalVars($journal);
$vars = array_merge($journalVars, $expertVars);
$rendered = $this->renderFromTemplate(
$task['template_id'],
$task['journal_id'],
json_encode($vars, JSON_UNESCAPED_UNICODE),
$task['style_id']
);
if ($rendered['code'] !== 0) {
Db::name('promotion_email_log')->where('log_id', $logEntry['log_id'])->update([
'state' => 2,
'error_msg' => 'Template render failed: ' . $rendered['msg'],
'send_time' => time(),
]);
Db::name('promotion_task')->where('task_id', $taskId)->setInc('fail_count');
Db::name('promotion_task')->where('task_id', $taskId)->update(['utime' => time()]);
$this->enqueueNextEmail($taskId, 2);
return ['done' => false, 'failed' => $logEntry['email_to'], 'reason' => 'template_error'];
}
$subject = $rendered['data']['subject'];
$body = $rendered['data']['body'];
$result = $this->doSendEmail($account, $logEntry['email_to'], $subject, $body);
$now = time();
if ($result['status'] === 1) {
Db::name('promotion_email_log')->where('log_id', $logEntry['log_id'])->update([
'j_email_id' => $account['j_email_id'],
'subject' => mb_substr($subject, 0, 512),
'state' => 1,
'send_time' => $now,
]);
Db::name('journal_email')->where('j_email_id', $account['j_email_id'])->setInc('today_sent');
Db::name('expert')->where('expert_id', $expert['expert_id'])->update(['ltime' => $now]);
Db::name('promotion_task')->where('task_id', $taskId)->setInc('sent_count');
} else {
Db::name('promotion_email_log')->where('log_id', $logEntry['log_id'])->update([
'j_email_id' => $account['j_email_id'],
'subject' => mb_substr($subject, 0, 512),
'state' => 2,
'error_msg' => mb_substr($result['data'], 0, 512),
'send_time' => $now,
]);
Db::name('promotion_task')->where('task_id', $taskId)->setInc('fail_count');
}
Db::name('promotion_task')->where('task_id', $taskId)->update(['utime' => $now]);
$delay = rand(max(5, $task['min_interval']), max($task['min_interval'], $task['max_interval']));
$this->enqueueNextEmail($taskId, $delay);
return [
'done' => false,
'sent' => $result['status'] === 1,
'email' => $logEntry['email_to'],
'next_in' => $delay,
];
}
// ==================== Queue ====================
public function enqueueNextEmail($taskId, $delay = 0)
{
$jobClass = 'app\api\job\PromotionSend@fire';
$data = ['task_id' => $taskId];
if ($delay > 0) {
Queue::later($delay, $jobClass, $data, 'promotion');
} else {
Queue::push($jobClass, $data, 'promotion');
}
}
// ==================== SMTP ====================
public function pickSmtpAccountForTask($task)
{
$journalId = $task['journal_id'];
$smtpIds = $task['smtp_ids'] ? array_map('intval', explode(',', $task['smtp_ids'])) : [];
$query = Db::name('journal_email')
->where('journal_id', $journalId)
->where('state', 0);
if (!empty($smtpIds)) {
$query->where('j_email_id', 'in', $smtpIds);
}
$accounts = $query->select();
if (empty($accounts)) {
return null;
}
$best = null;
$bestRemaining = -1;
foreach ($accounts as $acc) {
$this->resetDailyCountIfNeeded($acc);
$remaining = $acc['daily_limit'] - $acc['today_sent'];
if ($remaining > 0 && $remaining > $bestRemaining) {
$best = $acc;
$bestRemaining = $remaining;
}
}
return $best;
}
public function resetDailyCountIfNeeded(&$account)
{
$todayDate = date('Y-m-d');
$cacheKey = 'smtp_reset_' . $account['j_email_id'];
$lastReset = Cache::get($cacheKey);
if ($lastReset !== $todayDate) {
Db::name('journal_email')
->where('j_email_id', $account['j_email_id'])
->update(['today_sent' => 0]);
$account['today_sent'] = 0;
Cache::set($cacheKey, $todayDate, 86400);
}
}
public function doSendEmail($account, $toEmail, $subject, $htmlContent)
{
try {
$mail = new PHPMailer(true);
$mail->isSMTP();
$mail->SMTPDebug = 0;
$mail->CharSet = 'UTF-8';
$mail->Host = $account['smtp_host'];
$mail->Port = intval($account['smtp_port']);
$mail->SMTPAuth = true;
$mail->Username = $account['smtp_user'];
$mail->Password = $account['smtp_password'];
if ($account['smtp_encryption'] === 'ssl') {
$mail->SMTPSecure = 'ssl';
} elseif ($account['smtp_encryption'] === 'tls') {
$mail->SMTPSecure = 'tls';
} else {
$mail->SMTPSecure = false;
$mail->SMTPAutoTLS = false;
}
$fromName = !empty($account['smtp_from_name']) ? $account['smtp_from_name'] : $account['smtp_user'];
$mail->setFrom($account['smtp_user'], $fromName);
$mail->addReplyTo($account['smtp_user'], $fromName);
$mail->addAddress($toEmail);
$mail->isHTML(true);
$mail->Subject = $subject;
$mail->Body = $htmlContent;
$mail->AltBody = strip_tags($htmlContent);
$mail->send();
return ['status' => 1, 'data' => 'success'];
} catch (\Exception $e) {
return ['status' => 0, 'data' => $e->getMessage()];
}
}
// ==================== Template Rendering ====================
public function renderFromTemplate($templateId, $journalId, $varsJson, $styleId = 0)
{
$tpl = Db::name('mail_template')->where('template_id', $templateId)->where('journal_id', $journalId)->where('state', 0)->find();
if (!$tpl) {
return ['code' => 1, 'msg' => 'Template not found'];
}
$vars = [];
if ($varsJson) {
$decoded = json_decode($varsJson, true);
if (is_array($decoded)) $vars = $decoded;
}
$subject = $this->renderVars($tpl['subject'], $vars);
$body = $this->renderVars($tpl['body_html'], $vars);
$finalBody = $body;
if ($styleId) {
$style = Db::name('mail_style')->where('style_id', $styleId)->where('state', 0)->find();
if ($style) {
$header = $style['header_html'] ?? '';
$footer = $style['footer_html'] ?? '';
$finalBody = $header . $body . $footer;
}
}
return ['code' => 0, 'msg' => 'success', 'data' => ['subject' => $subject, 'body' => $finalBody]];
}
public function buildExpertVars($expert)
{
return [
'name' => $expert['name'] ?? '',
'email' => $expert['email'] ?? '',
'affiliation' => $expert['affiliation'] ?? '',
'field' => $expert['field'] ?? '',
];
}
public function buildJournalVars($journal)
{
if (!$journal) return [];
return [
'journal_title' => $journal['title'] ?? '',
'journal_abbr' => $journal['jabbr'] ?? '',
'journal_url' => $journal['website'] ?? '',
];
}
public function renderVars($tpl, $vars)
{
if (!is_string($tpl) || $tpl === '') return '';
if (!is_array($vars) || empty($vars)) return $tpl;
$replace = [];
foreach ($vars as $k => $v) {
$key = trim((string)$k);
if ($key === '') continue;
$replace['{{' . $key . '}}'] = (string)$v;
$replace['{' . $key . '}'] = (string)$v;
}
return str_replace(array_keys($replace), array_values($replace), $tpl);
}
// ==================== Logging ====================
public function log($msg)
{
$line = date('Y-m-d H:i:s') . ' ' . $msg . PHP_EOL;
@file_put_contents($this->logFile, $line, FILE_APPEND);
}
}