<?php

namespace App\Jobs;

use App\Services\ExamPdfExportService;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Log;
use Throwable;

class GenerateAnalysisPdfJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public string $paperId;

    public string $studentId;

    public ?string $recordId;

    public int $tries = 3;

    /**
     * 学情报告 HTML + 数据聚合比「整卷合并 PDF」更重，默认 60s 队列超时容易在 worker 侧被提前杀掉，
     * 表现为「卷子 PDF 正常、分析报告 PDF 一直失败」。与 {@see GenerateExamPdfJob} 对齐。
     */
    public int $timeout = 300;

    public array $backoff = [5, 10, 20];

    public function __construct(string $paperId, string $studentId, ?string $recordId = null)
    {
        $this->paperId = $paperId;
        $this->studentId = $studentId;
        $this->recordId = $recordId;

        // 指定使用 pdf 队列，由独立的 pdf-worker 容器处理
        $this->onQueue((string) config('queue.workloads.pdf', 'pdf'));
        // 避免事务未提交时 worker 提前消费导致读到未提交数据
        $this->afterCommit();
    }

    public function handle(ExamPdfExportService $pdfExportService): void
    {
        try {
            Log::info('开始处理学情分析PDF生成队列任务', [
                'paper_id' => $this->paperId,
                'student_id' => $this->studentId,
                'record_id' => $this->recordId,
                'attempt' => $this->attempts(),
            ]);

            // 生成学情分析PDF
            $pdfUrl = $pdfExportService->generateAnalysisReportPdf(
                $this->paperId,
                $this->studentId,
                $this->recordId
            );

            if (! $pdfUrl) {
                throw new \RuntimeException('学情分析PDF生成失败：返回空URL');
            }

            Log::info('学情分析PDF生成成功', [
                'paper_id' => $this->paperId,
                'student_id' => $this->studentId,
                'record_id' => $this->recordId,
                'pdf_url' => $pdfUrl,
            ]);

        } catch (\Throwable $e) {
            Log::error('学情分析PDF生成队列任务失败', [
                'paper_id' => $this->paperId,
                'student_id' => $this->studentId,
                'record_id' => $this->recordId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
                'attempt' => $this->attempts(),
            ]);
            throw $e;
        }
    }

    public function failed(Throwable $exception): void
    {
        Log::error('学情分析PDF生成队列任务最终失败', [
            'paper_id' => $this->paperId,
            'student_id' => $this->studentId,
            'record_id' => $this->recordId,
            'error' => $exception->getMessage(),
        ]);
    }
}