<?php
class GlacierController extends DataController 
{
	private $limit=20;
	
	function preDispatch()
	{
    	parent::preDispatch();
    	//$this->_helper->layout->setLayout('glacier');
		$acName = $this->_request->getActionName();
		if(in_array($acName,array("rs","dem")))
		{
			$this->view->pageIn = "collapse1";
		}
		if(in_array($acName,array("glacier","lake")))
		{
			$this->view->pageIn = "collapse2";
		}
		if(in_array($acName,array("meteo","hydro","gps",'lidar','material','movement','physical','photogrammetry','frozensoil','vegetation','quatemary')))
		{
			$this->view->pageIn = "collapse3";
		}
		$this->view->pageID = "glacier-".$acName;
	}
		
	function indexAction()
	{
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-项目简介','about');
	}
	
	/*
    * 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='glacier') ");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	$select=$this->db->select();
    	$select->from('normalmetadata','*')->where(" uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier') ")->order('title desc')->limitPage($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='glacier') ");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	$select=$this->db->select();
    	$select->from('normalmetadata as m','m.*')
   	 	->where(" uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier') ")
   	 	->order('m.title desc')->limitPage($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='glacier') ))");
    	$sum=$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='glacier') )) 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 geobaseAction()
	{
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-基础数据','about');
		$this->getmd(array('遥感影像','DEM'));
		$this->_helper->viewRenderer('base');		
	}

	function demAction()
	{
		$this->getmd('DEM');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-DEM','about');
		$this->_helper->viewRenderer('base');
	}
	
	function rsAction()
	{
		$this->getmd('遥感影像');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-遥感影像','about');
		$this->_helper->viewRenderer('base');		
	}
	
	function inventoryAction()
	{
    	$this->getmd(array('冰川编目','冰湖编目'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-冰川冰湖编目','about');
		$this->_helper->viewRenderer('base');				
	}

	function glacierAction()
	{
		$this->getmd('冰川编目');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-冰川编目','about');
		$this->_helper->viewRenderer('base');
	}
	
	function lakeAction()
	{
		$this->getmd('冰湖编目');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-冰湖编目','about');
		$this->_helper->viewRenderer('base');
	}
	
	function fieldAction()
	{
		$this->getmd(array('水文','流量','水质','同位素','径流','水位','气象','雨量','GPS',
    		'雷达','雷达测厚','冰川厚度','物质平衡','花杆','运动速度','花杆消融观测','冰舌', 
    		'冰雪物理过程','冰温','摄影测量','照片','第四纪','冻土','植被'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-野外考察与定位观测','about');
		$this->_helper->viewRenderer('base');		
	}
	
	function meteoAction()
	{
		$this->getmd(array('气象','雨量'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-气象','about');
		$this->_helper->viewRenderer('base');
	}

	function hydroAction()
	{
		$this->getmd(array('水文','流量','水质','同位素','径流','水位'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-水文','about');
		$this->_helper->viewRenderer('base');	
	}
	
	function gpsAction()
	{
		$this->getmd('GPS','theme');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-GPS','about');
		$this->_helper->viewRenderer('base');		
	}

	function lidarAction()
	{
		$this->getmd(array('雷达','雷达测厚','冰川厚度'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-雷达测厚','about');
		$this->_helper->viewRenderer('base');	
	}
	
	function materialAction()
	{
		$this->getmd(array('物质平衡','花杆'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-物质平衡','about');
		$this->_helper->viewRenderer('base');		
	}	
	
	function movementAction()
	{
		$this->getmd(array('运动速度','花杆消融观测','冰舌'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-冰川运动','about');
		$this->_helper->viewRenderer('base');		
	}
	
	function physicalAction()
	{
		$this->getmd(array('冰雪物理过程','冰温'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-冰雪物理过程','about');
		$this->_helper->viewRenderer('base');	
	}
	
	function photogrammetryAction()
	{
		$this->getmd(array('摄影测量','照片'));
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-近景摄影测量','about');
		$this->_helper->viewRenderer('base');
	}

	function vegetationAction()
	{
		$this->getmd('植被');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-植被调查','about');
		$this->_helper->viewRenderer('base');
	}
	
	function frozensoilAction()
	{
		$this->getmd('冻土');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-冻土调查','about');
		$this->_helper->viewRenderer('base');
	}
	
	function quatemaryAction()
	{
		$this->getmd('第四纪');
		$archive = new Archive($this->db);
		$this->view->info = $archive->getOneArchive('中国冰川资源及其变化调查-第四纪','about');
		$this->_helper->viewRenderer('base');
	}

	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='glacier')  order by timebegin,title";
		$this->view->metadata=$this->db->fetchAll($sql);
	}

   function tagAction()
   {
    	$key = $this->_request->getParam('key');
    	$keytype = $this->_request->getParam('keytype');		
    	$page=(int)$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(k.id) from keyword k left join normalmetadata m on k.id=m.id where m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glaicer') and k.keyword=?",$key);
    		$state=$this->db->query($sql);
    		$row=$state->fetchAll();
			$sum=$row[0]['count'];
			$sql="select uuid,title,id,description from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier')  and id in (select id from keyword where keyword='".$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 {
	    	$sql="select k.keyword,count(*),k.keytype from keyword k left join normalmetadata m on k.id=m.id where length(k.keyword)>0 and m.uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier') ";
	    	if (!empty($keytype) && ($keytype=='place' || $keytype=='theme' || $keytype=='discipline'||$keytype=='temporal')) $sql.=" and k.keytype='".$keytype."'";
	    	$sql.=' group by k.keyword,k.keytype  order by k.keytype,k.keyword,count desc';
	    	$state=$this->db->query($sql);
			$this->view->keytype=$keytype;
	    	$this->view->keywords=$state->fetchAll();
    	}
   }

   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='glacier')  and ".$where);
    		$sum=$row[0]['count'];
    		$sql="select uuid,title,id,description from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier')  and ".$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='glacier') and timebegin is not null";
    	$this->view->rows=$this->db->fetchAll($sql);
	}
    
   function timelineAction()
   {
    	$fn="glaciertime.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='glacier') 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='glacier') 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="/glacier/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='glacier') 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='glacier') and id in (select id from category where code=".$code.")");
			$sum=$row[0]['count'];
			$sql="select uuid,title,description,id from normalmetadata where  uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier') and id in (select distinct id from category where code=".$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*($page-1);
		if (!is_array($keyword))
		{
			$keyword=array($keyword);
		}
		$key="(";
		foreach($keyword as $k)
		{
			$key.="'".$k."',";
		}
		$key=substr($key,0,-1);
		$key.=")";
		$keyword=$key;
		
    	$state=$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='glacier' and m.id in (select id from keyword where keytype='".$type."' and keyword in ".$keyword.")");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	//@todo: add order with title
		$sql="select uuid,title from normalmetadata where uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier') and id in (select id from keyword where keytype='".$type."' and keyword in ".$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; 
	}
	
	//获取多项条件并列关系的数据并必须满足limited条件
	//$keyword:字符串或字符串数组
	//$limited:限制字符串
	private function getmdlimited($keyword,$limited)
	{
    	$page=(int)$this->_request->getParam('page');    	
    	if (empty($page)) $page=1;
    	$offset=$this->limit*($page-1);
		if (!is_array($keyword))
		{
			$keyword=array($keyword);
		}
		$key="(";
		foreach($keyword as $k)
		{
			$key.="'".$k."',";
		}
		$key=substr($key,0,-1);
		$key.=")";
		$keyword=$key;
		
    	$state=$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='glacier' and m.id in (select id from keyword where keyword='".$limited."') and m.id in (select id from keyword where keyword in ".$keyword.")");
    	$row=$state->fetchAll();
    	$sum=$row[0]['count'];
    	//@todo: add order with title
		$sql="select uuid,title from normalmetadata where uuid in (select d.uuid from datasource d left join source s on d.sourceid=s.id where s.code='glacier') and id in (select id from keyword where keyword='".$limited."') and id in (select id from keyword where keyword in ".$keyword.") order by 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; 
	}	
}