<?php

//Weather class using google's api
//needs simplexml enabled and fopen

// Available methods:

// set_location($location)
// Searches Google's API and populates variables if location found, else returns false.

// get_location()
// Returns set location.

// get_current()
// Returns current weather information as an indexed array with the following keys:
// ['condition'] - A description of the current weather.
// ['temp_f'] - The current temperature in degrees Fahrenheit.
// ['temp_c'] - The current temperature in degrees degrees Celcius.
// ['humidity'] - The current humidity as a percentage (with descriptive text).
// ['icon'] - A direct link to google's suggested icon for the current weather (URI).

// get_forecast0()
// Returns an array containing the forecast weather for the current day with the following keys:
// ['day'] - The day of the week abbreviated.
// ['icon'] - A direct link to google's suggested icon for the forecast weather (URI).
// ['condition'] - A description of the forecast weather.

// get_forecast1()
// Returns an array containing the forecast weather for the current day+1 with the following keys:
// ['day'] - The day of the week abbreviated.
// ['icon'] - A direct link to google's suggested icon for the forecast weather (URI).
// ['condition'] - A description of the forecast weather.

// get_forecast2()
// Returns an array containing the forecast weather for the current day+2 with the following keys:
// ['day'] - The day of the week abbreviated.
// ['icon'] - A direct link to google's suggested icon for the forecast weather (URI).
// ['condition'] - A description of the forecast weather.

// get_forecast3()
// Returns an array containing the forecast weather for the current day+3 with the following keys:
// ['day'] - The day of the week abbreviated.
// ['icon'] - A direct link to google's suggested icon for the forecast weather (URI).
// ['condition'] - A description of the forecast weather.

// set_forecast0icon($icon)
// Changes the file path set for the forecast icon.

// set_forecast1icon($icon)
// Changes the path set for the forecast icon.

// set_forecast2icon($icon)
// Changes the path set for the forecast icon.

// set_forecast3icon($icon)
// Changes the path set for the forecast icon.


	class weatherinfo{
		
		//declare variables
		var $xml;
		var $data;
		var $city;
		var $current;
		var $fc0;
		var $fc1;
		var $fc2;
		var $fc3;
		
		//set location
		//returns city name if valid else false
		function set_location($location){
			
			//constructs url to access google weather xml feed
			$this->xml = "http://www.google.com/ig/api?weather=" . $location;
			
			//loads xml feed
			$this->data = simplexml_load_file($this->xml);
			
			//checks if location specified is legitimate
			if($data->weather->problem_cause){
				return false;
			}else{
			//return locale name and sets variables
			
				$this->city = $this->data->weather->forecast_information->city['data'];
				
				$this->current = array("condition" => $this->data->weather->current_conditions->condition['data'], "temp_f" => $this->data->weather->current_conditions->temp_f['data'], "temp_c" => $this->data->weather->current_conditions->temp_c['data'], "humidity" => $this->data->weather->current_conditions->humidity['data'], "icon" => substr($this->data->weather->forecast_conditions[0]->icon['data'], 3));
				
				$this->fc0 = array("day" => $this->data->weather->forecast_conditions[0]->day_of_week['data'], "icon" => substr($this->data->weather->forecast_conditions[0]->icon['data'], 4), "condition" => $this->data->weather->forecast_conditions[0]->condition['data']);
				
				$this->fc1 = array("day" => $this->data->weather->forecast_conditions[1]->day_of_week['data'], "icon" => substr($this->data->weather->forecast_conditions[1]->icon['data'], 4), "condition" => $this->data->weather->forecast_conditions[1]->condition['data']);
				
				$this->fc2 = array("day" => $this->data->weather->forecast_conditions[2]->day_of_week['data'], "icon" => substr($this->data->weather->forecast_conditions[2]->icon['data'], 4), "condition" => $this->data->weather->forecast_conditions[2]->condition['data']);
				
				$this->fc3 = array("day" => $this->data->weather->forecast_conditions[3]->day_of_week['data'], "icon" => substr($this->data->weather->forecast_conditions[3]->icon['data'], 4), "condition" => $this->data->weather->forecast_conditions[3]->condition['data']);
				
				return $this->city;
			}
			
		}
		
		
		//methods to change icon paths
		function set_forecast0icon($icon){
			if($this->fc0['icon'] = $icon){
				return true;
			}
		}
		
		function set_forecast1icon($icon){
			if($this->fc1['icon'] = $icon){
				return true;
			}
		}
		
		function set_forecast2icon($icon){
			if($this->fc2['icon'] = $icon){
				return true;
			}
		}
		
		function set_forecast3icon($icon){
			if($this->fc3['icon'] = $icon){
				return true;
			}
		}
		
		function get_location(){
			return $this->city;
		}
		
		function get_current(){
			return $this->current;
		}
		
		function get_forecast0(){
			return $this->fc0;
		}
		
		function get_forecast1(){
			return $this->fc1;
		}
		
		function get_forecast2(){
			return $this->fc2;
		}
		
		function get_forecast3(){
			return $this->fc3;
		}
	}


?>