<?php

// +----------------------------------------------------------------------
// | ThinkAdmin
// +----------------------------------------------------------------------
// | 版权所有 2014~2017 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
// +----------------------------------------------------------------------
// | 官方网站: http://think.ctolog.com
// +----------------------------------------------------------------------
// | 开源协议 ( https://mit-license.org )
// +----------------------------------------------------------------------
// | github开源项目：https://github.com/zoujingli/ThinkAdmin
// +----------------------------------------------------------------------

namespace service;

use think\exception\HttpResponseException;
use think\facade\Response;
use think\facade\Session;

/**
 * 系统工具服务
 * Class ToolsService
 * @package service
 * @author Anyon <zoujingli@qq.com>
 * @date 2016/10/25 14:49
 */
class ToolsService
{

    /**
     * Cors Options 授权处理
     */
    public static function corsOptionsHandler()
    {
        if (PHP_SESSION_ACTIVE !== session_status()) Session::init(config('session.'));
        try {
            $token = request()->header('token', input('token', ''));
            list($name, $value) = explode('=', decode($token) . '=');
            if (!empty($value) && session_name() === $name) session_id($value);
        } catch (\Exception $e) {
        }
        if (request()->isOptions()) {
            header('Access-Control-Allow-Origin:*');
            header('Access-Control-Allow-Credentials:true');
            header('Access-Control-Allow-Methods:GET,POST,OPTIONS');
            header("Access-Control-Allow-Headers:Accept,Referer,Host,Keep-Alive,User-Agent,X-Requested-With,Cache-Control,Cookie,token");
            header('Content-Type:text/plain charset=utf-8');
            header('Access-Control-Max-Age:1728000');
            header('HTTP/1.0 204 No Content');
            header('Content-Length:0');
            header('status:204');
            exit;
        }
    }

    /**
     * Cors Request Header信息
     * @return array
     */
    public static function corsRequestHander()
    {
        return [
            'Access-Control-Allow-Origin'      => request()->header('origin', '*'),
            'Access-Control-Allow-Methods'     => 'GET,POST,OPTIONS',
            'Access-Control-Allow-Credentials' => "true",
        ];
    }

    /**
     * 返回成功的操作
     * @param mixed $msg 消息内容
     * @param array $data 返回数据
     * @param integer $code 返回代码
     */
    public static function success($msg, $data = [], $code = 1)
    {
        $result = ['code' => $code, 'msg' => $msg, 'data' => $data, 'token' => encode(session_name() . '=' . session_id())];
        throw new HttpResponseException(Response::create($result, 'json', 200, self::corsRequestHander()));
    }

    /**
     * 返回失败的请求
     * @param mixed $msg 消息内容
     * @param array $data 返回数据
     * @param integer $code 返回代码
     */
    public static function error($msg, $data = [], $code = 0)
    {
        $result = ['code' => $code, 'msg' => $msg, 'data' => $data, 'token' => encode(session_name() . '=' . session_id())];
        throw new HttpResponseException(Response::create($result, 'json', 200, self::corsRequestHander()));
    }

    /**
     * Emoji原形转换为String
     * @param string $content
     * @return string
     */
    public static function emojiEncode($content)
    {
        return json_decode(preg_replace_callback("/(\\\u[ed][0-9a-f]{3})/i", function ($str) {
            return addslashes($str[0]);
        }, json_encode($content)));
    }

    /**
     * Emoji字符串转换为原形
     * @param string $content
     * @return string
     */
    public static function emojiDecode($content)
    {
        return json_decode(preg_replace_callback('/\\\\\\\\/i', function () {
            return '\\';
        }, json_encode($content)));
    }

    /**
     * 一维数据数组生成数据树
     * @param array $list 数据列表
     * @param string $id 父ID Key
     * @param string $pid ID Key
     * @param string $son 定义子数据Key
     * @return array
     */
    public static function arr2tree($list, $id = 'id', $pid = 'pid', $son = 'sub')
    {
        list($tree, $map) = [[], []];
        foreach ($list as $item) $map[$item[$id]] = $item;
        foreach ($list as $item) if (isset($item[$pid]) && isset($map[$item[$pid]])) {
            $map[$item[$pid]][$son][] = &$map[$item[$id]];
        } else $tree[] = &$map[$item[$id]];
        unset($map);
        return $tree;
    }

    /**
     * 一维数据数组生成数据树
     * @param array $list 数据列表
     * @param string $id ID Key
     * @param string $pid 父ID Key
     * @param string $path
     * @param string $ppath
     * @return array
     */
    public static function arr2table(array $list, $id = 'id', $pid = 'pid', $path = 'path', $ppath = '')
    {
        $tree = [];
        foreach (self::arr2tree($list, $id, $pid) as $attr) {
            $attr[$path] = "{$ppath}-{$attr[$id]}";
            $attr['sub'] = isset($attr['sub']) ? $attr['sub'] : [];
            $attr['spt'] = substr_count($ppath, '-');
            $attr['spl'] = str_repeat("&nbsp;&nbsp;&nbsp;├&nbsp;&nbsp;", $attr['spt']);
            $sub = $attr['sub'];
            unset($attr['sub']);
            $tree[] = $attr;
            if (!empty($sub)) $tree = array_merge($tree, self::arr2table($sub, $id, $pid, $path, $attr[$path]));
        }
        return $tree;
    }

    /**
     * 获取数据树子ID
     * @param array $list 数据列表
     * @param int $id 起始ID
     * @param string $key 子Key
     * @param string $pkey 父Key
     * @return array
     */
    public static function getArrSubIds($list, $id = 0, $key = 'id', $pkey = 'pid')
    {
        $ids = [intval($id)];
        foreach ($list as $vo) if (intval($vo[$pkey]) > 0 && intval($vo[$pkey]) === intval($id)) {
            $ids = array_merge($ids, self::getArrSubIds($list, intval($vo[$key]), $key, $pkey));
        }
        return $ids;
    }

    /**
     * 写入CSV文件头部
     * @param string $filename 导出文件
     * @param array $headers CSV 头部(一级数组)
     */
    public static function setCsvHeader($filename, array $headers)
    {
        header('Content-Type: application/octet-stream');
        header("Content-Disposition: attachment; filename=" . iconv('utf-8', 'gbk//TRANSLIT', $filename));
        echo @iconv('utf-8', 'gbk//TRANSLIT', "\"" . implode('","', $headers) . "\"\n");
    }

    /**
     * 写入CSV文件内容
     * @param array $list 数据列表(二维数组或多维数组)
     * @param array $rules 数据规则(一维数组)
     */
    public static function setCsvBody(array $list, array $rules)
    {
        foreach ($list as $data) {
            $rows = [];
            foreach ($rules as $rule) {
                $item = self::parseKeyDot($data, $rule);
                $rows[] = $item === $data ? '' : $item;
            }
            echo @iconv('utf-8', 'gbk//TRANSLIT', "\"" . implode('","', $rows) . "\"\n");
            flush();
        }
    }

    /**
     * 根据数组key查询(可带点规则)
     * @param array $data 数据
     * @param string $rule 规则，如: order.order_no
     * @return mixed
     */
    private static function parseKeyDot(array $data, $rule)
    {
        list($temp, $attr) = [$data, explode('.', trim($rule, '.'))];
        while ($key = array_shift($attr)) $temp = isset($temp[$key]) ? $temp[$key] : $temp;
        return (is_string($temp) || is_numeric($temp)) ? str_replace('"', '""', "\t{$temp}") : '';
    }

}