<?php
/**
 * Created by PhpStorm.
 * User: liujin834
 * Date: 14/12/25
 * Time: 下午5:29
 */

namespace Westdc\Helpers;

use Zend\ServiceManager\ServiceManager;
use Zend\ServiceManager\ServiceManagerAwareInterface;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\Paginator\Adapter\ArrayAdapter;
use Zend\Paginator\Adapter\DbSelect;
use Zend\Paginator\Adapter\DbTableGateway;
use Zend\Paginator\Paginator as Zend_Paginator;
use Zend\Db\Sql\Select;
use Zend\Db\TableGateway;

class Paginator implements ServiceManagerAwareInterface{

    protected $serviceManager;

    public $sqlQuery,$sqlOrder,$sqlGroup,$sqlHaving;

    private $pageLimit,$pageRange,$route,$params,$viewPartial,$currentPage;

    public function setServiceManager(ServiceManager $serviceManager)
    {
        $this->serviceManager = $serviceManager;

        return $this;
    }

    /**
     * 每页显示数量
     * @param int $limit
     */
    public function setPageLimit($limit = 0)
    {
        $this->pageLimit = (int)$limit;
        if(empty($this->pageLimit))
            $this->pageLimit = 10;
    }

    /**
     * 页码显示范围
     * @param int $range
     */
    public function setPageRange($range = 0)
    {
        $this->pageRange = (int)$range;
        if(empty($this->pageRange))
            $this->pageRange = 6;
    }

    /**
     * 设置路由
     * @param string $route
     * @param string $params
     */
    public function setRoute($route = "",$params = "")
    {

        if(empty($route)) {
            $routeMatch = $this->serviceManager->get('Application')->getMvcEvent()->getRouteMatch();
            $this->route = str_replace("/wildcard", "", $routeMatch->getMatchedRouteName());
            $this->params = [];
        }else{
            $this->route = $route;
        }

        if(empty($params)) {
            if(!isset($routeMatch))
                $routeMatch = $this->serviceManager->get('Application')->getMvcEvent()->getRouteMatch();

            if (!empty($routeMatch->getParam('__CONTROLLER__')))
                $this->params['controller'] = $routeMatch->getParam('__CONTROLLER__');

            if (!empty($routeMatch->getParam('action')))
                $this->params['action'] = $routeMatch->getParam('action');

            if (!empty($routeMatch->getParam('ac')))
                $this->params['ac'] = $routeMatch->getParam('ac');

            if (!empty($routeMatch->getParam['id']))
                $this->params['id'] = $routeMatch->getParam('id');

            if (!empty($routeMatch->getParam['uuid']))
                $this->params['uuid'] = $routeMatch->getParam('uuid');
        }else{
            $this->params = $params;
        }

        unset($routeMatch);
    }

    /**
     * 设置分页模板
     * @param $viewPartial
     */
    public function setTemplate($viewPartial = "pagination")
    {
        $this->viewPartial = $viewPartial;
    }

    /**
     * 预处理分页使用到的参数
     */
    private function prepareParams()
    {
        if(empty($this->pageLimit))
            $this->setPageLimit();

        if(empty($this->pageRange))
            $this->setPageRange();

        if(empty($this->route))
            $this->setRoute();

        if(empty($this->viewPartial))
            $this->setTemplate();
    }

    /**
     * 预处理分页数据
     * @param $data
     * @return ArrayAdapter|DbSelect|DbTableGateway
     */
    private function prepareData($data)
    {
        if(is_array($data))
            return new ArrayAdapter($data);

        if($data instanceof Select)
        {
            $dbService = $this->serviceManager->get('Db');
            $zendDb = $dbService->getZendDb();
            return new DbSelect($data,$zendDb);
        }

        if($data instanceof TableGateway\TableGatewayInterface || $data instanceof TableGateway\AbstractTableGateway)
            return new DbTableGateway($data,$this->sqlQuery,$this->sqlOrder,$this->sqlGroup,$this->sqlHaving);
    }

    /**
     * 获得Zend\Paginator\Paginator对象
     * @param $data
     * @param $page
     * @return Zend_Paginator
     */
    private function getPaginator($data,$page)
    {
        $paginator = new Zend_Paginator($data);
        $paginator->setCurrentPageNumber($page)
            ->setItemCountPerPage($this->pageLimit)
            ->setPageRange($this->pageRange);

        return $paginator;
    }

    /**
     * 输出html分页，放置在paginator变量中
     * @param AbstractActionController $ctl
     * @param mixed $data
     * @return bool
     */
    public function add(AbstractActionController $ctl,$data)
    {
        $page = $ctl->params()->fromRoute('page');

        $this->prepareParams();

        $data = $this->prepareData($data);

        $paginator = $this->getPaginator($data,$page);

        $pagination = $ctl->getServiceLocator()->get('viewhelpermanager')->get('PaginationControl');

        $pageSliding = $pagination(
            $paginator,
            'Sliding',
            $this->viewPartial,
            ['route'=>$this->route,'params'=>$this->params]
        );

        $ctl->ViewModel->setVariable('pagination',$pageSliding);
        $ctl->ViewModel->setVariable('paginator',$paginator);
        return true;
    }//add()

    /**
     * 设置ajax分页的当前页码
     * @param $page
     */
    public function setAjaxCurrentPage($page){
        $this->currentPage = (int)$page;
    }

    /**
     * 输出ajax分页
     * @param $data
     * @return array
     */
    public function ajax($data){

        $this->prepareParams();

        $data = $this->prepareData($data);

        if(empty($this->currentPage))
            $page = 0;
        else
            $page = $this->currentPage;

        $paginator = $this->getPaginator($data,$page);

        $pagination = $this->serviceManager->get('viewhelpermanager')->get('PaginationControl');

        $pageSliding = $pagination(
            $paginator,
            'Sliding',
            $this->viewPartial,
            []
        );

        return [
            'paginator' => $paginator->toJson(),
            'pagination' => $pageSliding
        ];

    }//ajax


}