<?php
class GlacierController extends DataController 
{
	private $limit=20;
	
	function preDispatch()
	{
    	parent::preDispatch();
    	$this->_helper->layout->setLayout('glacier');
	}
		
	function indexAction()
	{
		$sql="select m.uuid,m.title,m.id,m.description from normalmetadata m left join thumbnail t on m.id=t.id where m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and length(t.data)>2 order by random() limit 3";
		$this->view->meatdata=$this->db->fetchAll($sql);
	}
	
	/*
    * 数据浏览
    */
	function browseAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') ");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	$select=$this->db->select();
    	$select->from('normalmetadata','*')->where(" uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') ")->order('title desc')->limitPage($page,$this->limit);
    	$this->view->metadata = $this->db->fetchAll($select);
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 
	}
    	
	function thumbAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') ");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	$select=$this->db->select();
    	$select->from('normalmetadata as m','m.*')
   	 	->where(" uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') ")
   	 	->order('m.title desc')->limitPage($page,$this->limit);
    	$this->view->metadata = $this->db->fetchAll($select);
    	$this->view->page=new Pagination($sum,$page,$this->limit);
	}
	
	function documentAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$row=$this->db->fetchAll("select count(*) from reference where id in (select refid from mdref where uuid in (select uuid from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') ))");
    	$sum=$row[0]['count'];
		$sql="select * from reference where id in (select refid from mdref where uuid in (select uuid from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') )) order by reference limit ? offset ?";
		$this->view->refs=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit,"文献");
    	$this->view->offset=$offset+1; 	
	}
	
	function baseAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='冰川' or keyword='沙漠' or keyword='地貌' or keyword='植被' or keyword='草场' or keyword='沙漠化' or keyword='基础地理' or keyword='遥感影像' or keyword='水文地质' or keyword='社会经济' or keyword='人口' or keyword='SWAT' or keyword='NPP' or keyword='WRF' or keyword='辐射' or keyword='NEP'))");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
		$sql="select uuid,title from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='冰川' or keyword='沙漠' or keyword='地貌' or keyword='植被' or keyword='草场' or keyword='沙漠化' or keyword='基础地理' or keyword='遥感影像' or keyword='水文地质' or keyword='社会经济' or keyword='人口' or keyword='SWAT' or keyword='NPP' or keyword='WRF' or keyword='辐射' or keyword='NEP')) order by timebegin,title limit ? offset ?";
		$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 			
	}

	function geobaseAction()
	{
		$this->getmd('基础地理');
	}

	function coreAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='DEM' or keyword='土地利用' or keyword='土壤' or keyword='气象' or keyword='水文观测' or keyword='灌溉' or keyword='试验'))");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
		$sql="select uuid,title from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='DEM' or keyword='土地利用' or keyword='土壤' or keyword='气象' or keyword='水文观测' or keyword='灌溉' or keyword='试验')) order by timebegin,title limit ? offset ?";
		$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 	
	}
		
	function demAction()
	{
		$this->getmd('DEM');
	}
	
	function rsAction()
	{
		$this->getmd('遥感影像');
	}
	
	function waterAction()
	{
		$this->getmd('水文地质');
	}
	
	function modelAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='WRF' or keyword='NPP' or keyword='SWAT' or keyword='NEP' or keyword='辐射'))");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
		$sql="select uuid,title from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='WRF' or keyword='NPP' or keyword='SWAT' or keyword='NEP' or keyword='辐射')) order by timebegin,title limit ? offset ?";
		$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 	
	}
	
	function economicAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='人口' or keyword='社会经济'))");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
		$sql="select uuid,title from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='人口' or keyword='社会经济')) order by timebegin,title limit ? offset ?";
		$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 
	}
	
	function landsurfaceAction()
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='冰川' or keyword='沙漠' or keyword='地貌' or keyword='植被' or keyword='草场' or keyword='沙漠化'))");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
		$sql="select uuid,title from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keytype='theme' and (keyword='冰川' or keyword='沙漠' or keyword='地貌' or keyword='植被' or keyword='草场' or keyword='沙漠化')) order by timebegin,title limit ? offset ?";
		$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 	
	}
	
	function landuseAction()
	{
		$this->getmd('土地利用','theme');
	}

	function soilAction()
	{
		$this->getmd('土壤','theme');
	}

	function meteoAction()
	{
		$this->getmd('气象','theme');
	}

	function hydroAction()
	{
		$this->getmd('水文观测','theme');
	}
	function irragationAction()
	{
		$this->getmd('灌溉','theme');
	}
	
	function obsAction()
	{
		$this->getmd('试验','theme');
	}

	function listAction()
	{
		$sql="select uuid,title from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  order by timebegin,title";
		$this->view->metadata=$this->db->fetchAll($sql);
	}

   function tagAction()
   {
    	$key = $this->_request->getParam('key');
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	if (!empty($key)) {
    		$this->view->codename=$key;
    		$sql=$this->db->quoteInto('select count(id) from keyword where keyword=?',$key);
    		$state=$this->db->query($sql);
    		$row=$state->fetchAll();
			$sum=$row[0]['count'];
			$sql="select uuid,title,id,description from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and id in (select id from keyword where keyword='".$key."') order by timebegin,title limit ? offset ?";
			$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    		$this->view->page=new Pagination($sum,$page,$this->limit);
    	} else {
    		$state=$this->db->query("select keyword.keyword,count(*) from keyword left join normalmetadata m on keyword.id=m.id where keyword.keytype='place' and m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  group by keyword.keyword order by count desc");    	
    		$k1=$state->fetchAll();
    		$state=$this->db->query("select k.keyword,count(k.keyword) from keyword k left join normalmetadata m on k.id=m.id where k.keytype='theme' and m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')   group by k.keyword order by k.keyword");
    		$k2=$state->fetchAll();
    		$state=$this->db->query("select k.keyword,count(k.keyword) from keyword k left join normalmetadata m on k.id=m.id where k.keytype='discipline' and m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')   group by k.keyword order by k.keyword");
    		$k3=$state->fetchAll();
    		$state=$this->db->query("select k.keyword,count(k.keyword) from keyword k left join normalmetadata m on k.id=m.id where k.keytype='stratum' and m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')   group by k.keyword order by k.keyword");
    		$k4=$state->fetchAll();
    		$state=$this->db->query("select keyword.keyword,count(*) from keyword left join normalmetadata m on keyword.id=m.id where keyword.keytype='temporal' and m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  group by keyword.keyword order by keyword.keyword");
    		$k5=$state->fetchAll();
    		$this->view->keywords=array('place'=>$k1,'theme'=>$k2,'discipline'=>$k3,'stratum'=>$k4,'temporal'=>$k5);    	
    	}
   }

   function searchAction()
   {
		$this->view->addHelperPath('helper','Zend_View_Helper_');
    	$form=new SearchForm();
    	$this->view->form=$form;
    	//$form->submit->setLabel('快速搜索');
    	$key=$this->_request->getParam('q');
    	if (!empty($key)) {
    		$search=new Search($key);
    		$where=$search->sql_expr(array("title","description"));
    		$page=@(int)$this->_request->getParam('page');
    		if (empty($page)) $page=1;
    		$offset=$this->limit*($page-1);
    		$row=$this->db->fetchAll("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and ".$where);
    		$sum=$row[0]['count'];
    		$sql="select uuid,title,id,description from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe')  and ".$where." order by timebegin,title limit ? offset ?";
			$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    		$this->view->page=new Pagination($sum,$page,$this->limit);
    		$this->view->key=$key;
    		$this->view->offset=$offset+1;    
    	}
   }

	function timemapAction()
	{
    	$sql="select id,uuid,west,south,north,east,title,timebegin,timeend from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') and timebegin is not null";
    	$this->view->rows=$this->db->fetchAll($sql);
	}
    
   function timelineAction()
   {
    	$fn="heihetime.xml";
    	$rows=$this->db->fetchAll("select ts_created from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') order by ts_created desc limit 1");
    	$last_update=strtotime($rows[0]['ts_created']);
    	if (!file_exists($fn) || (filemtime($fn)<$last_update))
    	{ 
	    	$dateformat="M j Y";
   	 	$rows=$this->db->fetchAll("select id,uuid,description,title,timebegin,timeend from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') and timebegin is not null order by timebegin,title");
    		$timexml='<data>';
    		foreach($rows as $row) {
    			$timexml.='<event start="'.date($dateformat,strtotime($row['timebegin'])).' GMT+0800" ';
    			if ($row['timeend']!='' && $row['timeend']!=$row['timebegin']) $timexml.=' end="'.date($dateformat,strtotime($row['timeend'])).'" isDuration="true"';    		
    			$timexml.= ' title="'.htmlspecialchars($row['title']).'" image="/images/westdc_40w.gif" link="/heihe/view/uuid/'.$row['uuid'].'">';
    			$desc_length=mb_strlen($row['description'],"UTF-8");
    			$desc=mb_substr($row['description'],0,($desc_length>300)?300:$desc_length,"UTF-8");
    			if ($desc_length>300) $desc.=" ...";
    			$timexml.=htmlspecialchars($desc);
    			$timexml.="</event>\n";
    		}    		
    		$timexml.='</data>';
    		$fp=fopen($fn,'w');
    		fwrite($fp,$timexml);
    		fclose($fp);
    	}
   }

	function categoryAction()
   {
		$code = (int)$this->_request->getParam('code');
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$this->view->category=$this->db->fetchAll("select c.code,name,name_zh,count(*) from category c left join normalmetadata m on c.id=m.id,categorycode cc where c.code=cc.code and  m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') group by c.code,cc.name,cc.name_zh");
    	if ($code>0 && $code<20) {
			$row=$this->db->fetchAll("select count(*) from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') and id in (select id from category where code=".$code.")");
			$sum=$row[0]['count'];
			$sql="select uuid,title,description,id from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') and id in (select distinct id from category where code=".$code.") order by timebegin,title limit ? offset ?";
			$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    		$this->view->page=new Pagination($sum,$page,$this->limit);
    		$this->view->offset=$offset+1; 
    		$row=$this->db->fetchRow("select name,name_zh from categorycode where code=?",$code);
    		$this->view->codename=(empty($row['name_zh'])?$row['name']:$row['name_zh']);
    	} else {
    		//提供全部分类列表
    	}
    }
    
	private function getmd($keyword,$type='theme')
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
    	$state=$this->db->query("select count(m.*) from normalmetadata m left join datasource d on m.uuid=d.uuid left join source s on d.sourceid=s.id where s.code='heihe' and m.id in (select id from keyword where keytype='".$type."' and keyword='".$keyword."')");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	//@todo: add order with title
		$sql="select uuid,title from normalmetadata where uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='heihe') and id in (select id from keyword where keytype='".$type."' and keyword='".$keyword."') order by timebegin,title limit ? offset ?";
		$this->view->metadata=$this->db->fetchAll($sql,array($this->limit,$offset));
    	$this->view->page=new Pagination($sum,$page,$this->limit);
    	$this->view->offset=$offset+1; 
	}	
}