<?php
/**
 *
 */
include_once(SERVER_ROOT . "/model/mBase.php");


class mWeiboComments extends mBase {
    private $config = [
        'positive' => [
            'keywords' => [
                '有效', '好用', '好了', '治愈', '见效', '不错', '管用', '有用','感恩',
                '灵验', '缓解', '痊愈', '见效', '神效', '推荐', '感谢', '好了',
                '管用', '有效果', '有效果', '奏效', '改善', '见效快', '神奇',
                '有效', '有效果', '有效果', '有效果', '有效果', '有效果'
            ],
            'patterns' => [
                '/(喝|吃|用)了?\s*\d+\s*次?[就]?(好|痊愈|缓解|不咳|不痛)了/u',
                '/(效果|结果)\s*(非常|很)?\s*(好|明显|不错|显著|惊人)/u',
                '/(尝试|试了|用了)\s*\d+\s*[天个]?\s*(就)?(好|痊愈|缓解|见效)/u',
                '/(咳嗽|咳|痛|疼|症状)\s*(明显)?\s*(减轻|缓解|消失|好了)/u',
                '/(感谢|谢谢)\s*(分享|博主|张医生|宝旬)/u'
            ]
        ],
        'negative' => [
            'keywords' => [
                '无效', '没用', '不好', '没效果', '不行', '不见效', '没好转',
                '加重', '恶化', '白费', '失望', '避雷', '没用', '没效果',
                '无效果', '无改善', '没作用', '不灵', '骗人', '忽悠', '上当'
            ],
            'patterns' => [
                '/(还是|依然|仍旧|仍然)\s*(咳|难受|痛|疼|没效果)/u',
                '/(一点|完全|根本|丝毫)\s*没(效果|用|好转|作用|改善)/u',
                '/(不仅|不但)\s*没(好|改善).*(反而|而且)\s*(加重|恶化)/u',
                '/(浪费|白费|白忙|白折腾)\s*(时间|精力)/u',
                '/(失望|后悔|上当|骗人|忽悠|别信)\s*(了|吧|！)/u'
            ]
        ]
    ];

    public function __construct() {}

    private function preprocess($comment) {
        $comment = preg_replace('/\s+/u', ' ', $comment);
        $comment = preg_replace('/[^\p{Han}\p{P}\w\s]/u', '', $comment);
        return trim($comment);
    }

    public function analyze($comment) {
        $comment = $this->preprocess($comment);

        foreach ($this->config['negative']['keywords'] as $word) {
            if (mb_strpos($comment, $word) !== false) return 'negative';
        }

        foreach ($this->config['positive']['keywords'] as $word) {
            if (mb_strpos($comment, $word) !== false) return 'positive';
        }

        foreach ($this->config['negative']['patterns'] as $pattern) {
            if (preg_match($pattern, $comment)) return 'negative';
        }

        foreach ($this->config['positive']['patterns'] as $pattern) {
            if (preg_match($pattern, $comment)) return 'positive';
        }

        return 'neutral';
    }


}