<?php

class SiteMap {

    public $xmlBegin = '<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="sitemap.xsl"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';

    public $xmlEnd = '</urlset>';

    public $xmlData = '';

    public $txtData = '';

    public $defaultDate;
    public $defaultChangeFreq;
    public $defaultPriority;

    /**
     * @var int 官网类型 与 Article表use_type 同步 0 乐外卖官网 1 逐趣同城 2 逐趣校园
     */
    private $type;

    public function __construct($type)
    {
        $this->type = $type;
        $this->defaultDate = date("Y-m-d", strtotime("-1 days"));
        $this->defaultChangeFreq = 'daily';
        $this->defaultPriority = 0.6;
    }

    /**
     * 生成 sitemap.xml 内容
     *
     * @param $data
     *
     * @author lizhi <1458705589@qq.com>
     * @date   2021/7/29
     */
    public function generateXml($data = [])
    {
        $dataXml = '';
        foreach ($data as $datum) {
            if (!isset($datum['url']) || empty($datum['url'])) {
                continue;
            }
            $url = $datum['url'];
            $time = isset($datum['time']) ? $datum['time'] : $this->defaultDate;
            $changeFreq = isset($datum['changefreq']) ? $datum['changefreq'] : $this->defaultChangeFreq;
            $priority = isset($datum['priority']) ? $datum['priority'] : $this->defaultPriority;
            $dataXml.=<<<EOF
    <url>
        <loc>{$url}</loc>
        <mobile:mobile type="htmladapt"/>
        <lastmod>{$time}</lastmod>
        <changefreq>{$changeFreq}</changefreq>
        <priority>{$priority}</priority>
    </url>

EOF;
        }
        $this->xmlData = "{$this->xmlBegin}
{$dataXml}
{$this->xmlEnd}";
    }

    /**
     * 生成 sitemap.txt 内容
     *
     * @param $data
     *
     * @author lizhi <1458705589@qq.com>
     * @date   2021/7/29
     */
    public function generateTxt($data)
    {
        $dataText = '';
        foreach ($data as $datum) {
            if (!isset($datum['url']) || empty($datum['url'])) {
                continue;
            }
            $url = $datum['url'];
            $dataText.= $url . "\n";
        }
        $this->txtData = "{$dataText}";
    }

    /**
     * 网页下载 sitemap.xml
     *
     * @author lizhi <1458705589@qq.com>
     * @date   2021/7/29
     */
    public function downLoadXml()
    {
        if (empty($this->xmlData)) {
            throw new \Exception("empty xml data");
        }
        header("Content-Type:text/xml charset=UTF-8");
        header("Content-Disposition:attachment; filename=sitemap.xml");
        header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
        header('Expires:0');
        header('Pragma:public');
        $fp = fopen('php://output', 'a');

        fwrite($fp, $this->xmlData);

        fclose($fp);
        die();
    }

    /**
     * 网页下载 sitemap.txt
     *
     * @author lizhi <1458705589@qq.com>
     * @date   2021/7/29
     */
    public function downLoadTxt()
    {
        if (empty($this->txtData)) {
            throw new \Exception("empty txt data");
        }
        header("Content-Type:text/text charset=UTF-8");
        header("Content-Disposition:attachment; filename=sitemap.txt");
        header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
        header('Expires:0');
        header('Pragma:public');
        $fp = fopen('php://output', 'a');

        fwrite($fp, $this->txtData);

        fclose($fp);
        die();
    }

    public function getXmlDate()
    {
        return $this->xmlData;
    }

    public function getTxtDate()
    {
        return $this->txtData;
    }

    public function syncTxtToOffice()
    {
        if (empty($this->txtData)) {
            return "生成数据错误";
        }

        $urlList = [
            Article::TYPE_ZHUQU_CITY => 'https://www.zhuqutongcheng.com/site/UpdateSiteMapTxt',
            Article::TYPE_ZHUQU_SCHOOL => 'https://www.zhuquxiaoyuan.com/site/UpdateSiteMapTxt',
            Article::TYPE_LEWAIMAI => 'https://www.lewaimai.com/site/UpdateSiteMapTxt',
        ];

        if (!Helper::isProductEnv()) {
            // 测试环境
            $urlList = [
                Article::TYPE_ZHUQU_CITY => 'http://tc.lewaimai.com/site/UpdateSiteMapTxt',
                Article::TYPE_ZHUQU_SCHOOL => 'http://xy.lewaimai.com/site/UpdateSiteMapTxt',
                Article::TYPE_LEWAIMAI => 'http://office.lewaimai.com/site/UpdateSiteMapTxt',
            ];
        }

        if (!isset($urlList[$this->type])) {
            return '类型错误';
        }

        $gzData = gzcompress($this->txtData);
        return LewaimaiHttp::POST($urlList[$this->type], [
            'data' => $gzData,
            'sign' => Helper::getSign($gzData)
        ]);
    }

    public function syncXmlToOffice()
    {
        if (empty($this->xmlData)) {
            return "生成数据错误";
        }

        $urlList = [
            Article::TYPE_ZHUQU_CITY => 'https://www.zhuqutongcheng.com/site/UpdateSiteMapXml',
            Article::TYPE_ZHUQU_SCHOOL => 'https://www.zhuquxiaoyuan.com/site/UpdateSiteMapXml',
            Article::TYPE_LEWAIMAI => 'https://www.lewaimai.com/site/UpdateSiteMapXml',
        ];

        if (!Helper::isProductEnv()) {
            // 测试环境
            $urlList = [
                Article::TYPE_ZHUQU_CITY => 'http://tc.lewaimai.com/site/UpdateSiteMapXml',
                Article::TYPE_ZHUQU_SCHOOL => 'http://xy.lewaimai.com/site/UpdateSiteMapXml',
                Article::TYPE_LEWAIMAI => 'http://office.lewaimai.com/site/UpdateSiteMapXml',
            ];
        }

        if (!isset($urlList[$this->type])) {
            return '类型错误';
        }

        $gzData = gzcompress($this->xmlData);
        return LewaimaiHttp::POST($urlList[$this->type], [
            'data' => $gzData,
            'sign' => Helper::getSign($gzData)
        ]);
    }
}