<?php

namespace app\common\controller;

use app\common\library\Auth;
use think\exception\HttpResponseException;
use think\exception\ValidateException;
use think\Lang;
use think\Loader;
use think\Request;
use think\Response;

/**
 * API控制器基类
 */
class Api
{

    /**
     * @var Request Request 实例
     */
    protected $request;

    /**
     * @var bool 验证失败是否抛出异常
     */
    protected $failException = false;

    /**
     * @var bool 是否批量验证
     */
    protected $batchValidate = false;

    /**
     * @var array 前置操作方法列表
     */
    protected $beforeActionList = [];

    /**
     * 无需登录的方法,同时也就不需要鉴权了
     * @var array
     */
    protected $noNeedLogin = [];

    /**
     * 无需鉴权的方法,但需要登录
     * @var array
     */
    protected $noNeedRight = [];

    /**
     * 权限Auth
     * @var Auth
     */
    protected $auth = null;


    //  项目添加  start

    /**
     * 快速搜索时执行查找的字段
     */
    protected $searchFields = 'id';

    /**
     * 是否是关联查询
     */
    protected $relationSearch = false;

    /**
     * 是否开启数据限制
     * 支持auth/personal
     * 表示按权限判断/仅限个人
     * 默认为禁用,若启用请务必保证表中存在admin_id字段
     */
    protected $dataLimit = false;

    /**
     * 数据限制字段
     */
    protected $dataLimitField = 'admin_id';

    /**
     * 数据限制开启时自动填充限制字段值
     */
    protected $dataLimitFieldAutoFill = true;

    /**
     * 是否开启Validate验证
     */
    protected $modelValidate = false;

    /**
     * 是否开启模型场景验证
     */
    protected $modelSceneValidate = false;

    /**
     * Multi方法可批量修改的字段
     */
    protected $multiFields = 'status';

    /**
     * 导入文件首行类型
     * 支持comment/name
     * 表示注释或字段名
     */
    protected $importHeadType = 'comment';

//  项目添加  end
    /**
     * 构造方法
     * @access public
     * @param Request $request Request 对象
     */
    public function __construct(Request $request = null)
    {
        $this->request = is_null($request) ? Request::instance() : $request;

        // 控制器初始化
        $this->_initialize();

        // 前置操作方法
        if ($this->beforeActionList)
        {
            foreach ($this->beforeActionList as $method => $options)
            {
                is_numeric($method) ?
                                $this->beforeAction($options) :
                                $this->beforeAction($method, $options);
            }
        }
    }

    /**
     * 初始化操作
     * @access protected
     */
    protected function _initialize()
    {
        $this->auth = Auth::instance();

        $modulename = $this->request->module();
        $controllername = strtolower($this->request->controller());
        $actionname = strtolower($this->request->action());

        // token
        $token = $this->request->request('token') ?: $this->request->cookie('token');

        $path = str_replace('.', '/', $controllername) . '/' . $actionname;
        // 设置当前请求的URI
        $this->auth->setRequestUri($path);
        // 检测是否需要验证登录
//        if (!$this->auth->match($this->noNeedLogin))
//        {
//            //初始化
//            $this->auth->init($token);
//            //检测是否登录
//            if (!$this->auth->isLogin())
//            {
//                $this->error(__('Please login first'));
//            }
//            // 判断是否需要验证权限
//            if (!$this->auth->match($this->noNeedRight))
//            {
//                // 判断控制器和方法判断是否有对应权限
//                if (!$this->auth->check($path))
//                {
//                    $this->error(__('You have no permission'));
//                }
//            }
//        }
//        else
//        {
//            // 如果有传递token才验证是否登录状态
//            if ($token)
//            {
//                $this->auth->init($token);
//            }
//        }
        // 加载当前控制器语言包
        $this->loadlang($controllername);
    }

    /**
     * 加载语言文件
     * @param string $name
     */
    protected function loadlang($name)
    {
        Lang::load(APP_PATH . $this->request->module() . '/lang/' . Lang::detect() . '/' . str_replace('.', '/', $name) . '.php');
    }

    /**
     * 操作成功返回的数据
     * @param string $msg   提示信息
     * @param mixed $data   要返回的数据
     * @param string $type  输出类型
     * @param array $header 发送的 Header 信息
     */
    protected function success($msg = '', $data = '', $type = 'json', array $header = [])
    {
        $this->result($data, 1, $msg, $type, $header);
    }

    /**
     * 操作失败返回的数据
     * @param string $msg   提示信息
     * @param mixed $data   要返回的数据
     * @param string $type  输出类型
     * @param array $header 发送的 Header 信息
     */
    protected function error($msg = '', $data = '', $type = 'json', array $header = [])
    {
        $this->result($data, 0, $msg, $type, $header);
    }

    /**
     * 返回封装后的 API 数据到客户端
     * @access protected
     * @param mixed  $data   要返回的数据
     * @param int    $code   返回的 code
     * @param mixed  $msg    提示信息
     * @param string $type   返回数据格式
     * @param array  $header 发送的 Header 信息
     * @return void
     * @throws HttpResponseException
     */
    protected function result($data, $code = 0, $msg = '', $type = '', array $header = [])
    {
        $result = [
            'code' => $code,
            'msg'  => $msg,
            'time' => Request::instance()->server('REQUEST_TIME'),
            'data' => $data,
        ];
        $type = $type ?: $this->getResponseType();
        $response = Response::create($result, $type)->header($header);

        throw new HttpResponseException($response);
    }

    /**
     * 未找到请求的接口
     */
    public function _empty()
    {
        return $this->error('Api not found');
    }

    /**
     * 前置操作
     * @access protected
     * @param  string $method  前置操作方法名
     * @param  array  $options 调用参数 ['only'=>[...]] 或者 ['except'=>[...]]
     * @return void
     */
    protected function beforeAction($method, $options = [])
    {
        if (isset($options['only']))
        {
            if (is_string($options['only']))
            {
                $options['only'] = explode(',', $options['only']);
            }

            if (!in_array($this->request->action(), $options['only']))
            {
                return;
            }
        }
        elseif (isset($options['except']))
        {
            if (is_string($options['except']))
            {
                $options['except'] = explode(',', $options['except']);
            }

            if (in_array($this->request->action(), $options['except']))
            {
                return;
            }
        }

        call_user_func([$this, $method]);
    }

    /**
     * 设置验证失败后是否抛出异常
     * @access protected
     * @param bool $fail 是否抛出异常
     * @return $this
     */
    protected function validateFailException($fail = true)
    {
        $this->failException = $fail;

        return $this;
    }

    /**
     * 验证数据
     * @access protected
     * @param  array        $data     数据
     * @param  string|array $validate 验证器名或者验证规则数组
     * @param  array        $message  提示信息
     * @param  bool         $batch    是否批量验证
     * @param  mixed        $callback 回调方法（闭包）
     * @return array|string|true
     * @throws ValidateException
     */
    protected function validate($data, $validate, $message = [], $batch = false, $callback = null)
    {
        if (is_array($validate))
        {
            $v = Loader::validate();
            $v->rule($validate);
        }
        else
        {
            // 支持场景
            if (strpos($validate, '.'))
            {
                list($validate, $scene) = explode('.', $validate);
            }

            $v = Loader::validate($validate);

            !empty($scene) && $v->scene($scene);
        }

        // 批量验证
        if ($batch || $this->batchValidate)
            $v->batch(true);
        // 设置错误信息
        if (is_array($message))
            $v->message($message);
        // 使用回调验证
        if ($callback && is_callable($callback))
        {
            call_user_func_array($callback, [$v, &$data]);
        }

        if (!$v->check($data))
        {
            if ($this->failException)
            {
                throw new ValidateException($v->getError());
            }

            return $v->getError();
        }

        return true;
    }

//    项目添加
    /**
     * 生成查询所需要的条件,排序方式
     * @param mixed $searchfields 快速查询的字段
     * @param boolean $relationSearch 是否关联查询
     * @return array
     */
    protected function buildparams($searchfields = null, $relationSearch = null)
    {
        $searchfields = is_null($searchfields) ? $this->searchFields : $searchfields;
        $relationSearch = is_null($relationSearch) ? $this->relationSearch : $relationSearch;
        $search = $this->request->get("search", '');
        $filter = $this->request->get("filter", '');
        $op = $this->request->get("op", '', 'trim');
        $sort = $this->request->get("sort", "id");
        $order = $this->request->get("order", "DESC");
        $offset = $this->request->get("offset", 0);
        $limit = $this->request->get("limit", 0);
        $filter = json_decode($filter, TRUE);
        $op = json_decode($op, TRUE);
        $filter = $filter ? $filter : [];
        $where = [];
        $tableName = '';
        if ($relationSearch)
        {
            if (!empty($this->model))
            {
                $tableName = $this->model->getQuery()->getTable() . ".";
            }
            $sort = stripos($sort, ".") === false ? $tableName . $sort : $sort;
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds))
        {
            $where[] = [$tableName . $this->dataLimitField, 'in', $adminIds];
        }
        if ($search)
        {
            $searcharr = is_array($searchfields) ? $searchfields : explode(',', $searchfields);
            foreach ($searcharr as $k => &$v)
            {
                $v = stripos($v, ".") === false ? $tableName . $v : $v;
            }
            unset($v);
            $where[] = [implode("|", $searcharr), "LIKE", "%{$search}%"];
        }
        foreach ($filter as $k => $v)
        {
            $sym = isset($op[$k]) ? $op[$k] : '=';
            if (stripos($k, ".") === false)
            {
                $k = $tableName . $k;
            }
            $sym = strtoupper(isset($op[$k]) ? $op[$k] : $sym);
            switch ($sym)
            {
                case '=':
                case '!=':
                    $where[] = [$k, $sym, (string) $v];
                    break;
                case 'LIKE':
                case 'NOT LIKE':
                case 'LIKE %...%':
                case 'NOT LIKE %...%':
                    $where[] = [$k, trim(str_replace('%...%', '', $sym)), "%{$v}%"];
                    break;
                case '>':
                case '>=':
                case '<':
                case '<=':
                    $where[] = [$k, $sym, intval($v)];
                    break;
                case 'IN':
                case 'IN(...)':
                case 'NOT IN':
                case 'NOT IN(...)':
                    $where[] = [$k, str_replace('(...)', '', $sym), explode(',', $v)];
                    break;
                case 'BETWEEN':
                case 'NOT BETWEEN':
                    $arr = array_slice(explode(',', $v), 0, 2);
                    if (stripos($v, ',') === false || !array_filter($arr))
                        continue;
                    //当出现一边为空时改变操作符
                    if ($arr[0] === '')
                    {
                        $sym = $sym == 'BETWEEN' ? '<=' : '>';
                        $arr = $arr[1];
                    }
                    else if ($arr[1] === '')
                    {
                        $sym = $sym == 'BETWEEN' ? '>=' : '<';
                        $arr = $arr[0];
                    }
                    $where[] = [$k, $sym, $arr];
                    break;
                case 'RANGE':
                case 'NOT RANGE':
                    $v = str_replace(' - ', ',', $v);
                    $arr = array_slice(explode(',', $v), 0, 2);
                    if (stripos($v, ',') === false || !array_filter($arr))
                        continue;
                    //当出现一边为空时改变操作符
                    if ($arr[0] === '')
                    {
                        $sym = $sym == 'RANGE' ? '<=' : '>';
                        $arr = $arr[1];
                    }
                    else if ($arr[1] === '')
                    {
                        $sym = $sym == 'RANGE' ? '>=' : '<';
                        $arr = $arr[0];
                    }
                    $where[] = [$k, str_replace('RANGE', 'BETWEEN', $sym) . ' time', $arr];
                    break;
                case 'LIKE':
                case 'LIKE %...%':
                    $where[] = [$k, 'LIKE', "%{$v}%"];
                    break;
                case 'NULL':
                case 'IS NULL':
                case 'NOT NULL':
                case 'IS NOT NULL':
                    $where[] = [$k, strtolower(str_replace('IS ', '', $sym))];
                    break;
                default:
                    break;
            }
        }
        $where = function($query) use ($where) {
            foreach ($where as $k => $v)
            {
                if (is_array($v))
                {
                    call_user_func_array([$query, 'where'], $v);
                }
                else
                {
                    $query->where($v);
                }
            }
        };
        return [$where, $sort, $order, $offset, $limit];
    }

    /**
     * 获取数据限制的管理员ID
     * 禁用数据限制时返回的是null
     * @return mixed
     */
    protected function getDataLimitAdminIds()
    {
        if (!$this->dataLimit)
        {
            return null;
        }
        if ($this->auth->isSuperAdmin())
        {
            return null;
        }
        $adminIds = [];
        if (in_array($this->dataLimit, ['auth', 'personal']))
        {
            $adminIds = $this->dataLimit == 'auth' ? $this->auth->getChildrenAdminIds(true) : [$this->auth->id];
        }
        return $adminIds;
    }

    /**
     * Selectpage的实现方法
     *
     * 当前方法只是一个比较通用的搜索匹配,请按需重载此方法来编写自己的搜索逻辑,$where按自己的需求写即可
     * 这里示例了所有的参数，所以比较复杂，实现上自己实现只需简单的几行即可
     *
     */
    protected function selectpage()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'htmlspecialchars']);

        //搜索关键词,客户端输入以空格分开,这里接收为数组
        $word = (array) $this->request->request("q_word/a");
        //当前页
        $page = $this->request->request("page");
        //分页大小
        $pagesize = $this->request->request("per_page");
        //搜索条件
        $andor = $this->request->request("and_or");
        //排序方式
        $orderby = (array) $this->request->request("order_by/a");
        //显示的字段
        $field = $this->request->request("field");
        //主键
        $primarykey = $this->request->request("pkey_name");
        //主键值
        $primaryvalue = $this->request->request("pkey_value");
        //搜索字段
        $searchfield = (array) $this->request->request("search_field/a");
        //自定义搜索条件
        $custom = (array) $this->request->request("custom/a");
        $order = [];
        foreach ($orderby as $k => $v)
        {
            $order[$v[0]] = $v[1];
        }
        $field = $field ? $field : 'name';

        //如果有primaryvalue,说明当前是初始化传值
        if ($primaryvalue !== null)
        {
            $where = [$primarykey => ['in', $primaryvalue]];
        }
        else
        {
            $where = function($query) use($word, $andor, $field, $searchfield, $custom) {
                foreach ($word as $k => $v)
                {
                    foreach ($searchfield as $m => $n)
                    {
                        $query->where($n, "like", "%{$v}%", $andor);
                    }
                }
                if ($custom && is_array($custom))
                {
                    foreach ($custom as $k => $v)
                    {
                        $query->where($k, '=', $v);
                    }
                }
            };
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds))
        {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = [];
        $total = $this->model->where($where)->count();
        if ($total > 0)
        {
            if (is_array($adminIds))
            {
                $this->model->where($this->dataLimitField, 'in', $adminIds);
            }
            $list = $this->model->where($where)
                ->order($order)
                ->page($page, $pagesize)
                ->field("{$primarykey},{$field}")
                ->field("password,salt", true)
                ->select();
        }
        //这里一定要返回有list这个字段,total是可选的,如果total<=list的数量,则会隐藏分页按钮
        return json(['list' => $list, 'total' => $total]);
    }


}