<?php

namespace app\api\controller;

use think\Db;
use think\Validate;
use app\common\UserFieldAiService;

/**
 * 用户主领域 AI 总结（写入 t_user_reviewer_info.field_ai）。
 *
 * POST startChain     启动链式队列（扫描全部符合条件的用户）
 * POST processOne     同步处理单个 user_id（调试）
 * GET  preview        预览某用户是否 eligible 及上下文摘要
 */
class UserFieldAi extends Base
{
    /**
     * 启动链式处理。需 worker: php think queue:work --queue UserFieldAi
     */
    public function startChain()
    {
        $force = intval($this->request->param('force', 0)) === 1;
        $delay = max(0, intval($this->request->param('delay', 1)));

        $svc = new UserFieldAiService();
        $started = $svc->startChain($force, $delay);

        return jsonSuccess([
            'started' => $started,
            'queue'   => UserFieldAiService::QUEUE_NAME,
            'force'   => $force,
            'msg'     => $started ? 'chain enqueued' : 'no pending users',
        ]);
    }

    /**
     * 同步处理单个用户（不调队列）。
     */
    public function processOne()
    {
        $userId = intval($this->request->param('user_id', 0));
        $force  = intval($this->request->param('force', 0)) === 1;
        if ($userId <= 0) {
            return jsonError('user_id required');
        }

        $svc = new UserFieldAiService();
        $result = $svc->processUser($userId, $force);
        if (empty($result['ok'])) {
            return jsonError(isset($result['error']) ? $result['error'] : 'failed');
        }
        return jsonSuccess($result);
    }

    /**
     * 预览：是否满足条件、当前 field_ai 状态。
     */
    public function preview()
    {
        $userId = intval($this->request->param('user_id', 0));
        if ($userId <= 0) {
            return jsonError('user_id required');
        }

        $svc = new UserFieldAiService();
        $svc->ensureReviewerInfoRow($userId);
        $uri = Db::name('user_reviewer_info')->where('reviewer_id', $userId)->find();

        return jsonSuccess([
            'user_id'              => $userId,
            'has_articles'         => $svc->hasSubmittedArticles($userId),
            'profile_complete'     => $svc->isReviewerProfileComplete($uri),
            'eligible'             => $svc->isEligible($userId, $uri),
            'field_ai'             => $uri ? (string) $uri['field_ai'] : '',
            'field_ai_status'      => $uri ? intval($uri['field_ai_status']) : 0,
            'field_ai_utime'       => $uri ? intval($uri['field_ai_utime']) : 0,
            'field_ai_status_text' => $this->statusLabel($uri ? intval($uri['field_ai_status']) : 0),
        ]);
    }

    private function statusLabel($status)
    {
        $map = [
            UserFieldAiService::STATUS_PENDING      => 'pending',
            UserFieldAiService::STATUS_DONE         => 'done',
            UserFieldAiService::STATUS_INSUFFICIENT => 'insufficient',
            UserFieldAiService::STATUS_FAILED       => 'failed',
        ];
        return isset($map[$status]) ? $map[$status] : 'unknown';
    }
}