<?php

namespace app\api\job;

use think\queue\Job;
use app\common\PromotionService;

/**
 * 队列任务：task 级别的 prepare 调度器。
 *
 * 职责：遍历 task 下待准备的 promotion_email_log，
 *       将每封邮件拆成一条 PromotionPrepareEmail 推到 promotion_email 队列，
 *       以便并行调用 LLM 生成个性化描述。
 *
 * 队列名：promotion
 * 启动 worker：php think queue:listen --queue promotion
 */
class PromotionPrepareTask
{
    public function fire(Job $job, $data)
    {
        $taskId  = intval(isset($data['task_id']) ? $data['task_id'] : 0);
        $service = new PromotionService();

        if (!$taskId) {
            $job->delete();
            return;
        }

        try {
            $result = $service->dispatchPrepareEmails($taskId);
            $service->log('[PromotionPrepareTask] task=' . $taskId
                . ' dispatched=' . $result['dispatched']
                . ' already_done=' . ($result['already_done'] ? 1 : 0)
                . (empty($result['error']) ? '' : ' error=' . $result['error']));
        } catch (\Exception $e) {
            $service->log('[PromotionPrepareTask] task=' . $taskId . ' exception=' . $e->getMessage());
        }

        $job->delete();
    }
}