<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use app\common\model\Category as CategoryModel;
use fast\Tree;

/**
 * 分类管理
 *
 * @icon   fa fa-list
 * @remark 用于统一管理网站的所有分类,分类可进行无限级分类,分类类型请在常规管理->系统配置->字典配置中添加
 */
class Category extends Backend
{

    /**
     * @var \app\common\model\Category
     */
    protected $model = null;
    protected $categorylist = [];
    protected $noNeedRight = ['selectpage'];

    public function _initialize()
    {
        parent::_initialize();
        $this->model = model('app\common\model\Category');

        $tree = Tree::instance();
        $tree->init(collection($this->model->order('weigh desc,id desc')->select())->toArray(), 'pid');
        $this->categorylist = $tree->getTreeList($tree->getTreeArray(0), 'name');
        $categorydata = [0 => ['type' => 'all', 'name' => __('None')]];
        foreach ($this->categorylist as $k => $v) {
            $categorydata[$v['id']] = $v;
        }
        $typeList = CategoryModel::getTypeList();
        $this->view->assign("flagList", $this->model->getFlagList());
        $this->view->assign("typeList", $typeList);
        $this->view->assign("parentList", $categorydata);
        $this->assignconfig('typeList', $typeList);
    }

    /**
     * 查看
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags']);
        if ($this->request->isAjax()) {
            $search = $this->request->request("search");
            $type = $this->request->request("type");

            //构造父类select列表选项数据
            $list = [];

            foreach ($this->categorylist as $k => $v) {
                if ($search) {
                    if ($v['type'] == $type && stripos($v['name'], $search) !== false || stripos($v['nickname'], $search) !== false) {
                        if ($type == "all" || $type == null) {
                            $list = $this->categorylist;
                        } else {
                            $list[] = $v;
                        }
                    }
                } else {
                    if ($type == "all" || $type == null) {
                        $list = $this->categorylist;
                    } elseif ($v['type'] == $type) {
                        $list[] = $v;
                    }
                }
            }

            $total = count($list);
            $result = array("total" => $total, "rows" => $list);

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 编辑
     */
    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            if (!in_array($row[$this->dataLimitField], $adminIds)) {
                $this->error(__('You have no permission'));
            }
        }
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);

                if ($params['pid'] != $row['pid']) {
                    $childrenIds = Tree::instance()->init(collection(\app\common\model\Category::select())->toArray())->getChildrenIds($row['id'], true);
                    if (in_array($params['pid'], $childrenIds)) {
                        $this->error(__('Can not change the parent to child or itself'));
                    }
                }

                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                        $row->validate($validate);
                    }
                    $result = $row->allowField(true)->save($params);
                    if ($result !== false) {
                        $this->success();
                    } else {
                        $this->error($row->getError());
                    }
                } catch (\think\exception\PDOException $e) {
                    $this->error($e->getMessage());
                } catch (\think\Exception $e) {
                    $this->error($e->getMessage());
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }


    /**
     * 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
     *
     */
    public 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("pageNumber");
        //分页大小
        $pagesize = $this->request->request("pageSize");
        //搜索条件
        $andor = $this->request->request("andOr", "and", "strtoupper");
        //排序方式
        $orderby = (array)$this->request->request("orderBy/a");
        //显示的字段
        $field = $this->request->request("showField");
        //主键
        $primarykey = $this->request->request("keyField");
        //主键值
        $primaryvalue = $this->request->request("keyValue");
        //搜索字段
        $searchfield = (array)$this->request->request("searchField/a");
        //自定义搜索条件
        $custom = (array)$this->request->request("custom/a");
        //是否返回树形结构
        $istree = $this->request->request("isTree", 1);
        $ishtml = $this->request->request("isHtml", 0);
        if ($istree) {
            $word = [];
            $pagesize = 99999;
        }
        $order = [];
        foreach ($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) {
                $logic = $andor == 'AND' ? '&' : '|';
                $searchfield = is_array($searchfield) ? implode($logic, $searchfield) : $searchfield;
                foreach ($word as $k => $v) {
                    $query->where(str_replace(',', $logic, $searchfield), "like", "%{$v}%");
                }
                if ($custom && is_array($custom)) {
                    foreach ($custom as $k => $v) {
                        if (is_array($v) && 2 == count($v)) {
                            $query->where($k, trim($v[0]), $v[1]);
                        } else {
                            $query->where($k, '=', $v);
                        }
                    }
                }
            };
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = [];
        $total = $this->model->where($where)->where(['status'=>'normal'])->count();
        if ($total > 0) {
            if (is_array($adminIds)) {
                $this->model->where($this->dataLimitField, 'in', $adminIds);
            }
            $datalist = $this->model->where($where)->where(['status'=>'normal'])
                ->order($order)
                ->page($page, $pagesize)
                ->field($this->selectpageFields)
                ->select();
            foreach ($datalist as $index => $item) {
                unset($item['password'], $item['salt']);
                $list[] = [
                    $primarykey => isset($item[$primarykey]) ? $item[$primarykey] : '',
                    $field      => isset($item[$field]) ? $item[$field] : '',
                    'pid'       => isset($item['pid']) ? $item['pid'] : 0
                ];
            }
            if ($istree && !$primaryvalue) {
                $tree = Tree::instance();
                $tree->init(collection($list)->toArray(), 'pid');
                $list = $tree->getTreeList($tree->getTreeArray(0), $field);
                if (!$ishtml) {
                    foreach ($list as &$item) {
                        $item = str_replace('&nbsp;', ' ', $item);
                    }
                    unset($item);
                }
            }
        }
        //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]);
    }
}