<?php

declare(strict_types=1);
/**
 * +----------------------------------------------------------------------
 * | Ueditor编辑器后台控制器制器
 * +----------------------------------------------------------------------
 */

namespace app\sys\controller;

use think\App;
use ueditor\Uploader;

class Ueditor extends Base
{
    protected $config;

    public function __construct(App $app)
    {
        parent::__construct($app);

        $this->config = json_decode(preg_replace("/\/\*[\s\S]+?\*\//", "", file_get_contents($this->app->getRootPath() . "/extend/ueditor/config.json")), true);
    }

    public function index()
    {
        return json($this->config);
    }

    public function config()
    {
        $result = json($this->config);

        return $this->output($result);
    }

    public function uploadimage()
    {
        $result = $this->upload('uploadimage');

        return $this->output($result);
    }

    public function uploadscrawl()
    {
        $result = $this->upload('uploadscrawl');

        return $this->output($result);
    }

    public function uploadvideo()
    {
        $result = $this->upload('uploadvideo');

        return $this->output($result);
    }

    public function uploadfile()
    {
        $result = $this->upload('uploadfile');

        return $this->output($result);
    }

    public function listimage()
    {
        $result = $this->listfiles('listimage');

        return $this->output($result);
    }

    public function listfile()
    {
        $result = $this->listimage('listfile');

        return $this->output($result);
    }

    public function catchimage()
    {
        return $this->crawler();
    }

    /**
     * 输出结果
     */
    public function output($result)
    {
        if (isset($_GET["callback"])) {
            if (preg_match("/^[\w_]+$/", $_GET["callback"])) {
                return htmlspecialchars($_GET["callback"]) . '(' . $result . ')';
            } else {
                return json(array(
                    'state' => 'callback参数不合法'
                ));
            }
        } else {
            return $result;
        }
    }

    /**
     * 空操作
     */
    public function _empty()
    {
        return json([
            'state' => '请求地址出错'
        ]);
    }

    protected function upload($type = "")
    {
        $base64 = "upload";
        switch ($type) {
            case 'uploadimage':
                $uploadconfig = [
                    "pathFormat" => $this->config['imagePathFormat'],
                    "maxSize" => $this->config['imageMaxSize'],
                    "allowFiles" => $this->config['imageAllowFiles']
                ];
                $fieldName = $this->config['imageFieldName'];
                break;
            case 'uploadurlimage':
                $uploadconfig = [
                    "pathFormat" => $this->config['imagePathFormat'],
                    "maxSize" => $this->config['imageMaxSize'],
                    "allowFiles" => $this->config['imageAllowFiles']
                ];
                $fieldName = $this->config['imageFieldName'];
                $base64 = "uploadurlimage";
                break;
            case 'uploadscrawl':
                $uploadconfig = array(
                    "pathFormat" => $this->config['scrawlPathFormat'],
                    "maxSize" => $this->config['scrawlMaxSize'],
                    "allowFiles" => $this->config['scrawlAllowFiles'],
                    "oriName" => "scrawl.png"
                );
                $fieldName = $this->config['scrawlFieldName'];
                $base64 = "base64";
                break;
            case 'uploadvideo':
                $uploadconfig = array(
                    "pathFormat" => $this->config['videoPathFormat'],
                    "maxSize" => $this->config['videoMaxSize'],
                    "allowFiles" => $this->config['videoAllowFiles']
                );
                $fieldName = $this->config['videoFieldName'];
                break;
            case 'uploadfile':
            default:
                $uploadconfig = array(
                    "pathFormat" => $this->config['filePathFormat'],
                    "maxSize" => $this->config['fileMaxSize'],
                    "allowFiles" => $this->config['fileAllowFiles']
                );
                $fieldName = $this->config['fileFieldName'];
                break;
        }

        /* 生成上传实例对象并完成上传 */
        $up = new Uploader($fieldName, $uploadconfig, $base64);
        /**
         * 得到上传文件所对应的各个参数,数组结构
         * array(
         *     "state" => "",          //上传状态，上传成功时必须返回"SUCCESS"
         *     "url" => "",            //返回的地址
         *     "title" => "",          //新文件名
         *     "original" => "",       //原始文件名
         *     "type" => ""            //文件类型
         *     "size" => "",           //文件大小
         * )
         */

        /* 返回数据 */
        return json($up->getFileInfo());
    }

    protected function listfiles($type = "")
    {
        /* 判断类型 */
        switch ($type) {
                /* 列出文件 */
            case 'listfile':
                $allowFiles = $this->config['fileManagerAllowFiles'];
                $listSize = $this->config['fileManagerListSize'];
                $path = $this->config['fileManagerListPath'];
                break;
                /* 列出图片 */
            case 'listimage':
            default:
                $allowFiles = $this->config['imageManagerAllowFiles'];
                $listSize = $this->config['imageManagerListSize'];
                $path = $this->config['imageManagerListPath'];
        }
        $allowFiles = substr(str_replace(".", "|", join("", $allowFiles)), 1);

        /* 获取参数 */
        $size = isset($_GET['size']) ? htmlspecialchars($_GET['size']) : $listSize;
        $start = isset($_GET['start']) ? htmlspecialchars($_GET['start']) : 0;
        $end = $start + $size;

        /* 获取文件列表 */
        $path = $_SERVER['DOCUMENT_ROOT'] . (substr($path, 0, 1) == "/" ? "" : "/") . $path;
        $files = getfiles($path, $allowFiles);
        if (!count($files)) {
            return json(array(
                "state" => "no match file",
                "list" => array(),
                "start" => $start,
                "total" => count($files)
            ));
        }

        /* 获取指定范围的列表 */
        $len = count($files);
        for ($i = min($end, $len) - 1, $list = array(); $i < $len && $i >= 0 && $i >= $start; $i--) {
            $list[] = $files[$i];
        }
        //倒序
        //for ($i = $end, $list = array(); $i < $len && $i < $end; $i++){
        //    $list[] = $files[$i];
        //}

        /* 返回数据 */
        $result = json(array(
            "state" => "SUCCESS",
            "list" => $list,
            "start" => $start,
            "total" => count($files)
        ));

        return $result;
    }

    protected function crawler()
    {
        set_time_limit(0);
        /* 上传配置 */
        $config = array(
            "pathFormat" => $this->config['catcherPathFormat'],
            "maxSize" => $this->config['catcherMaxSize'],
            "allowFiles" => $this->config['catcherAllowFiles'],
            "oriName" => "remote.png"
        );
        $fieldName = $this->config['catcherFieldName'];

        /* 抓取远程图片 */
        $list = array();
        if (isset($_POST[$fieldName])) {
            $source = $_POST[$fieldName];
        } else {
            $source = $_GET[$fieldName];
        }
        foreach ($source as $imgUrl) {
            $item = new Uploader($imgUrl, $config, "remote");
            $info = $item->getFileInfo();
            array_push($list, array(
                "state" => $info["state"],
                "url" => $info["url"],
                "size" => $info["size"],
                "title" => htmlspecialchars($info["title"]),
                "original" => htmlspecialchars($info["original"]),
                "source" => htmlspecialchars($imgUrl)
            ));
        }

        /* 返回抓取数据 */
        return json(array(
            'state' => count($list) ? 'SUCCESS' : 'ERROR',
            'list' => $list
        ));
    }

    public function action($action = "")
    {
        switch ($action) {
            case 'config':
                $result =  json($this->config);
                break;
                /* 上传图片 */
            case 'uploadimage':
                /* 上传涂鸦 */
            case 'uploadscrawl':
                /* 上传视频 */
            case 'uploadvideo':
                /* 上传文件 */
            case 'uploadfile':
                $result = $this->upload();
                break;

                /* 列出图片 */
            case 'listimage':
                $result = $this->listfiles();
                break;
                /* 列出文件 */
            case 'listfile':
                $result = $this->listfiles();
                break;

                /* 抓取远程文件 */
            case 'catchimage':
                $result = $this->crawler();
                break;

            default:
                $result = json(array(
                    'state' => '请求地址出错'
                ));
                break;
        }

        /* 输出结果 */
        if (isset($_GET["callback"])) {
            if (preg_match("/^[\w_]+$/", $_GET["callback"])) {
                return htmlspecialchars($_GET["callback"]) . '(' . $result . ')';
            } else {
                return json(array(
                    'state' => 'callback参数不合法'
                ));
            }
        } else {
            return $result;
        }
    }

    // /* 上传图片配置项 */
    // "imageActionName": "uploadimage", /* 执行上传图片的action名称 */


    // /* 涂鸦图片上传配置项 */
    // "scrawlActionName": "uploadscrawl", /* 执行上传涂鸦的action名称 */


    // /* 截图工具上传 */
    // "snapscreenActionName": "uploadimage", /* 执行上传截图的action名称 */


    // /* 抓取远程图片配置 */
    // "catcherLocalDomain": ["127.0.0.1", "localhost", "img.baidu.com"],


    // /* 上传视频配置 */
    // "videoActionName": "uploadvideo", /* 执行上传视频的action名称 */


    // /* 上传文件配置 */
    // "fileActionName": "uploadfile", /* controller里,执行上传视频的action名称 */


    // /* 列出指定目录下的图片 */
    // "imageManagerActionName": "listimage", /* 执行图片管理的action名称 */

    // /* 列出指定目录下的文件 */
    // "fileManagerActionName": "listfile", /* 执行文件管理的action名称 */
}