<?php

namespace app\admin\controller\system;

use app\common\controller\AdminController;
use app\common\model\SystemFaq;
use think\App;

/**
 * @ControllerAnnotation(title="system_faq")
 */
class Faq extends AdminController
{

    use \app\admin\traits\Curd;

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

        $this->model = new SystemFaq();

    }

    /**
     * @NodeAnotation(title="列表")
     */
    public function index ()
    {
        if ($this->request->isAjax()) {
            if (input('selectFields')) {
                return $this->selectList();
            }
            list($page, $limit, $where) = $this->buildTableParames();
            $count = $this->model
                ->where($where)
                ->count();
            $list = $this->model
                ->where($where)
                ->page($page, $limit)
                ->order($this->sort)
                ->select();
            foreach ($list as &$v) {
                if ($v->parent_id == 0) {
                    $v->parent_id = '最上级';
                } else {
                    $self = \think\facade\Db::name('system_faq')
                        ->where(['id' => $v->parent_id])
                        ->value('title');
                    $v->parent_id = $self;
                }
            }
            $data = [
                'code' => 0,
                'msg' => '',
                'count' => $count,
                'data' => $list,
            ];
            return json($data);
        }
        return $this->fetch();
    }


    /**
     * @NodeAnotation(title="修改")
     */
    public function edit ($id)
    {
        $row = $this->model->find($id);
        empty($row) && $this->error('数据不存在');
        if ($this->request->isAjax()) {
            $post = $this->request->post();
            $rule = [];
            $this->validate($post, $rule);
            try {
                if (empty($post['url'])) {
                    unset($post['url']);
                }
                if (!empty($post['content'])) {
                    $post['content'] = htmlspecialchars_decode($post['content']);
                }
                $save = $row->save($post);
            } catch (\Exception $e) {
                $this->error('保存失败');
            }
            $save ? $this->success('保存成功') : $this->error('保存失败');
        }
        $this->assign('row', $row);
        return $this->fetch();
    }

    /**
     * @NodeAnotation(title="添加")
     */
    public function add ()
    {
        if ($this->request->isAjax()) {
            $post = $this->request->post();
            try {
                if ($post['parent_id'] == 1) {
                    $db = \think\facade\Db::name('system_faq')
                        ->where(['parent_id' => 1])
                        ->count();
                    if ($db >= 5) {
                        $this->error('保存失败');
                    }
                }
                if (!empty($post['content'])) {
                    $post['content'] = htmlspecialchars_decode($post['content']);
                }
                $save = $this->model->save($post);
            } catch (\Exception $e) {
                $this->error('保存失败');
            }
            $save ? $this->success('保存成功') : $this->error('保存失败');
        }
        return $this->fetch();
    }

    /**
     * @NodeAnotation(title="删除")
     */
    public function delete ($id)
    {
        $row = $this->model->find($id);
        if ($row->id == 1) {
            $this->error('父类常见问题不能删除');
        }
        empty($row) && $this->error('数据不存在');
        try {
            $save = $row->delete();
        } catch (\Exception $e) {
            $this->error('删除失败');
        }
        if ($save) {
            $this->success('删除成功');
        } else {
            $this->error('删除失败');
        }
    }


    /**
     * @NodeAnotation(title="选择上级")
     */
    public function type ()
    {
        $list = \think\facade\Db::name('system_faq')
            ->field('id,title')
            ->where(['parent_id' => 0])
            ->select()
            ->toArray();
        array_push($list, ['id' => 0, 'title' => '最上级']);
        $data = [
            'code' => 1,
            'msg' => '',
            'count' => count($list),
            'data' => $list,
        ];
        return json($data);
    }
}