<?php

namespace App\Jobs;

use App\Models\KnowledgeExplanation;
use App\Services\KnowledgeExplanationService;
use App\Services\TaskManager;
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 GenerateKnowledgeExplanationTaskJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public function __construct(public string $taskId)
    {
        $this->onQueue('logic');
        $this->afterCommit();
    }

    public int $tries = 2;

    public int $timeout = 180;

    public function handle(
        KnowledgeExplanationService $knowledgeExplanationService,
        TaskManager $taskManager
    ): void {
        $task = $taskManager->getTaskStatus($this->taskId);
        if (! is_array($task) || ! isset($task['data']) || ! is_array($task['data'])) {
            $taskManager->markTaskFailed($this->taskId, '任务数据不存在');
            return;
        }

        $payload = $task['data'];
        try {
            $taskManager->updateTaskProgress($this->taskId, 15, '开始生成知识点讲解与案例...');
            $prepared = $knowledgeExplanationService->prepareKnowledgeExplanation($payload);
            $knowledgeId = (string) $prepared['knowledge_id'];
            $knowledgePoints = (array) $prepared['knowledge_points'];

            $taskManager->updateTaskStatus($this->taskId, [
                'paper_id' => $knowledgeId,
                'knowledge_id' => $knowledgeId,
                'kp_codes' => array_map(static fn (array $kp) => $kp['kp_code'] ?? '', $knowledgePoints),
            ]);
            $taskManager->updateTaskProgress($this->taskId, 55, '案例筛选完成，开始生成PDF...');

            dispatch(new GenerateKnowledgeExplanationPdfJob($this->taskId, $knowledgeId, $knowledgePoints));
        } catch (\Throwable $e) {
            Log::error('GenerateKnowledgeExplanationTaskJob 失败', [
                'task_id' => $this->taskId,
                'error' => $e->getMessage(),
            ]);
            $knowledgeId = (string) ($payload['knowledge_id'] ?? '');
            if ($knowledgeId !== '') {
                KnowledgeExplanation::query()
                    ->where('knowledge_id', $knowledgeId)
                    ->update(['status' => 'failed']);
            }
            $taskManager->markTaskFailed($this->taskId, $e->getMessage());
        }
    }

    public function failed(Throwable $exception): void
    {
        $taskManager = app(TaskManager::class);
        $task = $taskManager->getTaskStatus($this->taskId);
        $knowledgeId = is_array($task) ? (string) ($task['data']['knowledge_id'] ?? '') : '';
        if ($knowledgeId !== '') {
            KnowledgeExplanation::query()
                ->where('knowledge_id', $knowledgeId)
                ->update(['status' => 'failed']);
        }
        $taskManager->markTaskFailed($this->taskId, $exception->getMessage());
    }
}