<?php

class VisualController extends Zend_Controller_Action 
{
   
    function preDispatch()
    {
    	$this->view->config = Zend_Registry::get('config');
    	$this->db=Zend_Registry::get('db');
		$this->dbh = new PDO("pgsql:dbname=qinghaihu;host=localhost", "gis", "gispassword" ); 
		$auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$this->uid = $user->id;
		}else{
			$this->_redirect('/account/login?href=/data/visual');
		}
    }
	
	function indexAction()
	{
			        
	}	
	
	
	/****************************************************************
	
	气象数据
	
	*****************************************************************/
	
	
	/*
	* getMeteorologyValueByStation 按站点查询变量
	*
	* param int $sid		站点编号
	* param string $field	变量类型
	*
	* return array
	*/	
	function getMeteorologyValueByStation($sid,$field)
	{
		
		$sql = "select id,station_id as sid,date,$field as v from daily_meteorological_data where station_id=$sid ORDER BY date ASC";
		
		$sth = $this->dbh->prepare($sql);
		$sth->execute();
		$temp = $sth->fetchAll();
		
		$dataSet = array();
		
		foreach ($temp as $k=>$v)
		{
			$dataSet[] = array(strtotime($v['date'])*1000,$v['v']);
		}
		unset($temp);
		
		return $dataSet;
		
	}// getMeteorologyValueByStation 按站点查询变量
	
	
	
	/*
	* createMeteorologyDataSet 创建气象数据
	*
	* param int $sid				站点id
	* param string $valuetype		请求变量类型
	* param String $labe			单位
	* param int $round				数据精确度（小数点后位数）
	* 
	* return array
	*/
	function createMeteorologyDataSet($sid,$valuetype,$label,$round=1)
	{
		if(empty($label))
		{
			$label="";
		}
		
		$varField = array(
			'temperature' => 'avg_air_temperature',  	//日平均气温
			'windspeed' => 'avg_wind_speed',			//日平均风速
			'precipitation' => 'sum_precipitation',		//日合计降水量
			'sunshine' => 'sunshine_hours'				//日照小时数
		);
		
		$data = array(
				"name"=>"站点：$sid",
				"data"=>$this->getMeteorologyValueByStation($sid,$varField[$valuetype]),
				"tooltip"=>array(
                    "valueDecimals"=> $round,
					"valueSuffix"=> $label
                )
			);
			
		return $data;
	}// createMeteorologyDataSet 创建气象数据
	
	
	/*
	* getMeteorologyDataByStationId 获得变量值
	*
	* param string $valuetype		变量类型
	* param string $label			单位
	* param int		$sid			可选，为空则查询所有站点
	* param int		$round			数值精确度，小数点后位数
	*
	* return array
	*/
	function getMeteorologyDataByStationId($valuetype,$label,$sid=0,$round=1)
	{
		if(empty($sid))
		{
			$sql = "select station_id as sid from daily_meteorological_data group by station_id";
			
			$sth = $this->dbh->prepare($sql);
			$sth->execute();
			$stations = $sth->fetchAll();
			
			$data = array();
		
			foreach ($stations as $v)
			{
				$data[] = $this->createMeteorologyDataSet($v['sid'],$valuetype,$label,$round);
			}
			
			return $data;
		}
		
		else
		{
			return $this->createMeteorologyDataSet($sid,$valuetype,$label,$round=1);
		}
		
		
	}//getMeteorologyDataByStationId 获得气象数据变量值
	
	
	
	
	
	
	
	
	/**********************************************************
	
	水文数据
	
	***********************************************************/
	
	
	/*
	* getHydrologyValueByStation 按站点查询变量
	*
	* param int $sid		站点编号
	* param string $table	变量类型
	*
	* return array
	*/	
	function getHydrologyValueByStation($sid,$t)
	{
		
		$field = array();			//查询字段
		$order = array();
		
		if(is_array($t['time']))
		{
			foreach ($t['time'] as $v)
			{
				$field[] = $v;
				$order[] = $v.' ASC';
			}
		}else{
			$field[] = $t['time'];
			$order[] = $t['time'].' ASC';
		}
		$t['field'] .= " as v";
		$field[] = $t['field'];
		$field[] = $t['sf'];
		
		$field = join(",",$field);		//拼接
		$order = join(',',$order);
		
		
		$sql = "select $field from {$t['table']} where {$t['sf']}='$sid' ORDER BY $order";
		
		$sth = $this->dbh->prepare($sql);
		$sth->execute();
		$temp = $sth->fetchAll();
		
		$dataSet = array();
		
		foreach ($temp as $k=>$v)
		{
			$time = 0;
			if(!empty($v['dt']))
			{
				$time = strtotime($v['dt']);
			}
			if(!empty($v['yr']) && !empty($v['mth']))
			{
				$time = strtotime($v['yr'].'-'.$v['mth'].'-'.'01 00:00:00');
			}
			if(!empty($v['yr']) && empty($v['mth']))
			{
				$time = strtotime($v['yr'].'-01-01 00:00:00');
			}
			$dataSet[] = array($time*1000,$v['v']);
		}
		unset($temp);
		
		return $dataSet;
		
	}// getHydrologyValueByStation 按站点查询变量
	
	
	
	/*
	* createHydrologyDataSet 创建水文数据
	*
	* param int $sid				站点编号
	* param string $valuetype		变量类型
	* param string $label			单位
	* param int $round 				数值精确度，小数点后位数
	*
	* return array
	*/
	function createHydrologyDataSet($sid,$valuetype,$label,$round){
		
		if(empty($label))
		{
			$label='';
		}
		
		$varTable = array(
			"dp"=>array(
					"table"=>"hy_dp_c",		//表名
					"field"=>"p",			//值字段
					"sf"=>"stcd",			//站点id字段
					"time"=>array("dt")		//时间字段，数组
				),		//日降水量
			"mtp"=>array(
					"table"=>"hy_mtp_e",
					"field"=>"p",
					"sf"=>"stcd",
					"time"=>array('yr','mth')
				),		//月降水量
			"yrp"=>array(
					"table"=>"hy_yrp_f",
					"field"=>"p",
					"sf"=>"stcd",
					"time"=>array("yr")	
				),		//年降水量
			"dq"=>array(
					"table"=>"hy_dq_c",
					"field"=>"avq",
					"sf"=>"stcd",
					"time"=>array("dt")
				),		//日平均流量
			"mtq"=>array(
					"table"=>"hy_mtq_e",
					"field"=>"avq",
					"sf"=>"stcd",
					"time"=>array('yr','mth')
				),		//月平均流量
			"yrq"=>array(
					"table"=>"hy_yrq_f",
					"field"=>"avq",
					"sf"=>"stcd",
					"time"=>array('yr')
				)		//年平均流量
		);//$varTable
		
		$data = array(
				"name"=>"站点：$sid",
				"data"=>$this->getHydrologyValueByStation($sid,$varTable[$valuetype]),
				"tooltip"=>array(
                    "valueDecimals"=> $round,
					"valueSuffix"=> $label
                )
			);
			
		return $data;
		
	}//createHydrologyDataSet 创建水文数据
	
	
	/*
	* getHydrologyDataByStationId  获得水文数据变量值
	*
	* param string $valuetype			变量类型
	* param string $label				单位
	* param int $sid					站点编号，默认为空，空值将列出所有站点变量值
	* param int	$round					数值精确度，小数点后位数
	*
	* return array
	*/
	function getHydrologyDataByStationId($valuetype,$label,$sid=0,$round=1){
		
		if(empty($sid))
		{
			//降水
			$p = array('dp','mtp','yrp');
			$q = array('dq','mtq','yrq');
			if(in_array($valuetype,$p))
			{
				$sql = "select stcd from hy_dp_c group by stcd";
			}
			if(in_array($valuetype,$q))
			{
				$sql = "select stcd from hy_dq_c group by stcd";
			}
			
			$sth = $this->dbh->prepare($sql);
			$sth->execute();
			$stations = $sth->fetchAll();
			
			$data = array();
		
			foreach ($stations as $v)
			{
				$data[] = $this->createHydrologyDataSet($v['stcd'],$valuetype,$label,$round);
			}
			
			return $data;
			
		}//所有站点
		
		
		if(is_array($sid))
		{
			foreach($sid as $v)
			{
				
			}
		}//多个指定站点
		
		
		else
		{
			
		}//单个站点
		
	}
	//getHydrologyDataByStationId() 获得水文数据变量值
	
	
	/****************************
	
	环境监测数据
	
	*****************************/
	
	/*
	* createAmbientDataSet 创建环境监测数据
	*
	* param int $sid				站点编号、名称
	* param string $valuetype		变量类型
	* param string $label			单位
	* param int $round 				数值精确度，小数点后位数
	*
	* return array
	*/
	function createAmbientDataSet($sid,$valuetype,$label,$round=4){
		
		if(empty($label))
		{
			$label='';
		}
		
		$data = array(
				"name"=>"站点：$sid",
				"data"=>$this->getAmbientValueByStation($sid,$valuetype),
				"tooltip"=>array(
                    "valueDecimals"=> $round,
					"valueSuffix"=> $label
                )
			);
			
		return $data;
		
	}//createAmbientDataSet 创建环境监测数据的数据
	
	/*
	* getAmbientValueByStation 按站点查询变量
	*
	* param int $sid		站点编号
	* param string $table	变量类型
	*
	* return array
	*/	
	function getAmbientValueByStation($sid,$t)
	{
		
		$field = array();			//查询字段
		
		$field[] = 'id';
		$field[] = '"position"';
		$field[] = 'dt';
		$field[] = $t.' as v';
		
		$field = join(",",$field);		//拼接
		
		
		$sql = "select $field from ambient_air where \"position\"='$sid' ORDER BY dt ASC";
		
		$sth = $this->dbh->prepare($sql);
		$sth->execute();
		$temp = $sth->fetchAll();
		
		$dataSet = array();
		
		foreach ($temp as $k=>$v)
		{
			$time = 0;
			if(!empty($v['dt']))
			{
				$time = strtotime($v['dt']);
			}
			if(!empty($v['yr']) && !empty($v['mth']))
			{
				$time = strtotime($v['yr'].'-'.$v['mth'].'-'.'01 00:00:00');
			}
			if(!empty($v['yr']) && empty($v['mth']))
			{
				$time = strtotime($v['yr'].'-01-01 00:00:00');
			}
			$dataSet[] = array($time*1000,$v['v']);
		}
		unset($temp);
		
		return $dataSet;
		
	}// getAmbientValueByStation 按站点查询变量
	
	/*
	* getAmbientDataByStationId  获得环境监测数据变量
	*
	* param string $valuetype			变量类型
	* param string $label				单位
	* param int $sid					站点编号，默认为空，空值将列出所有站点变量值
	* param int	$round					数值精确度，小数点后位数
	*
	* return array
	*/
	function getAmbientDataByStationId($valuetype,$label,$sid=0,$round=4){
		
		if(empty($sid))
		{
			//降水
			$p = array('tsp','pm10','so2','no2');

			if(in_array($valuetype,$p))
			{
				$sql = "select \"position\" from ambient_air group by \"position\"";
			}
			
			$sth = $this->dbh->prepare($sql);
			$sth->execute();
			$stations = $sth->fetchAll();
			
			$data = array();
		
			foreach ($stations as $v)
			{
				$data[] = $this->createAmbientDataSet($v['position'],$valuetype,$label,$round);
			}
			
			return $data;
			
		}//所有站点
		
		
		if(is_array($sid))
		{

		}//多个指定站点
		
		
		else
		{
			
		}//单个站点
		
	}
	//getAmbientDataByStationId() 获得环境监测数据变量的值
	
	
	
	
	//********************************************************
	
	/*
	* dataAction() ajax获取数据
	*
	* param string $ac 				//请求的数据类型
	* param string $dt				//请求的数据来源(气象，水文)
	*
	* return view
	*/
	function dataAction()
	{
		
		$this->_helper->layout->disableLayout();
		$this->_helper->viewRenderer->setNoRender();
		
		$ac = $this->_request->getParam('ac');
		$base = $this->_request->getParam('dt');
		
		if(!in_array($base,array('meteorology','hydrology','ambient')))
		{
			$data = array(
				"error"=>"参数错误"
			);
			
			$this->jsonexit($data);
			return true;
		}
		
		$datas = array();
		$label = "";
		$title = "";
		$range = 0;
		$type = "line";
		
		if($base == "meteorology")
		{
			if($ac=='temperature')
			{
				
				$title = "日平均温度";
				$label = "℃";
				$type = "line";
				
				$datas = $this->getMeteorologyDataByStationId($ac,$label);
				
			}//日平均温度
			
			if($ac == 'windspeed')
			{

				$title = "日平均风速";
				$label = "m/s";
				$type = "line";
				
				$datas = $this->getMeteorologyDataByStationId($ac,$label);
				
			}//日平均风速 m/s
			
			if($ac == 'precipitation')
			{
				
				$title = "日合计降水量";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getMeteorologyDataByStationId($ac,$label);
				
			}//日合计降水量 mm
			
			if($ac == 'sunshine')
			{
				
				$title = "日照小时数";
				$label = "h";
				$type = "line";
				
				$datas = $this->getMeteorologyDataByStationId($ac,$label);
				
			}//日照小时数 h
			
		}//气象数据
		
		
		if($base == 'hydrology')
		{
			if($ac == 'dp')
			{
				$title = "日降水量";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getHydrologyDataByStationId($ac,$label);
				
			}//日降水量
			
			if($ac == 'mtp')
			{
				$title = "月均降水";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getHydrologyDataByStationId($ac,$label);
			}//月均降水
			
			if($ac == 'yrp')
			{
				$title = "年均降水";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getHydrologyDataByStationId($ac,$label);
			}//年均降水
			
			if($ac == 'dq')
			{
				$title = "日均流量";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getHydrologyDataByStationId($ac,$label);
			}
			
			if($ac == 'mtq')
			{
				$title = "月均流量";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getHydrologyDataByStationId($ac,$label);
			}
			
			if($ac == 'yrq')
			{
				$title = "年均流量";
				$label = "mm";
				$type = "line";
				
				$datas = $this->getHydrologyDataByStationId($ac,$label);
			}			
			
			
		}//水文数据
		
		
		if($base=="ambient")
		{
			if($ac=='tsp')
			{
				$title = "总悬浮颗粒物";
				$label="";
				$type = "column";
				$range = 6;
				$datas = $this->getAmbientDataByStationId($ac,$label);
			}
			
			if($ac=='pm10')
			{
				$title = "可吸入颗粒物";
				$label="";
				$type = "column";
				$range = 6;
				$datas = $this->getAmbientDataByStationId($ac,$label);
			}
			
			if($ac=='so2')
			{
				$title = "二氧化硫";
				$label="";
				$type = "column";
				$range = 6;
				$datas = $this->getAmbientDataByStationId($ac,$label);
			}
			
			if($ac=='no2')
			{
				$title = "二氧化氮";
				$label="";
				$type = "column";
				$range = 6;
				$datas = $this->getAmbientDataByStationId($ac,$label);
			}
		}//环境监测数据
		
		if(empty($range))
		{
			$range = 0;
		}
		
		$data = array(
				"label"=>$label,
				"title"=>$title,
				"type"=>$type,
				"range"=>$range,
				"datas"=>$datas
			);
			
		$this->jsonexit($data);
		return true;
		
	}//dataAction() Ajax获取数据
	
	
	
	
	
	function utcMsTime($time=''){
		if(empty($time))
		return (time()+8*3600)*1000;
		else
		return $time*1000;
	}
	
	/*
    * jsonexit() 退出并返回json数据
    *
    * param array $data		要返回的JSON数据，可以是任意数组
    *
	* return application/JSON
    */
	public function jsonexit($data){
		$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(json_encode($data,JSON_NUMERIC_CHECK));
		return true;  
	}//jsonexit() 退出并返回json数据
 
}


/* 
			 数据模型
			 "data"=>array(
			 	
				//第一条曲线
			 	"data1"=>array(
						"title"=>"5米风速",
						"unit"=>"m/s",
						"sensor"=>"传感器XXX",
						"sensor_type"=>"传感器类型",
						"datas"=>array(
								array($this->utcMsTime(),26.0),
								array($this->utcMsTime()+3600*1000,28.1),
								array($this->utcMsTime()+7200*1000,30.9),
								array($this->utcMsTime()+10800*1000,32.0),
								array($this->utcMsTime()+12800*1000,28.0),
								array($this->utcMsTime()+13800*1000,22.0)
							)
					),
					
				
				//第二条曲线
				"data2"=>array(
						"title"=>"10米风速",
						"unit"=>"m/s",
						"sensor"=>"传感器XXX",
						"sensor_type"=>"传感器类型",
						"datas"=>array(
								array($this->utcMsTime(),26.0),
								array($this->utcMsTime()+5600*1000,22.1),
								array($this->utcMsTime()+8200*1000,35.9),
								array($this->utcMsTime()+11800*1000,32.0),
								array($this->utcMsTime()+13900*1000,22.0),
								array($this->utcMsTime()+16800*1000,21.0)
							)
					),
					
				//第三条.......
			 )
			
			*/