<?php

class UssdConfig {

	public $state;
	public $message;

	public function __construct($sc, Logger $logger) {
		$this->state = NULL;
		if (!file_exists(Config::$USSD_CONFIG_FILE)) {
			$this->state = 'USSD_CONFIG_FILE does not exist';
			$this->message = Config::$TEXT_SERVICE_UNAVAILABLE;
			return;
		}
		
		$parseIniFile = @parse_ini_file(Config::$USSD_CONFIG_FILE, true);
		if (!is_array($parseIniFile)) {
			$this->state = 'failed to read USSD_CONFIG_FILE';
			$this->message = Config::$TEXT_SERVICE_UNAVAILABLE;
			return;
		}
		if (!array_key_exists($sc, $parseIniFile)) {
			$this->state = 'the code '.$sc.' is not configured yet';
			$this->message = Config::$TEXT_SERVICE_NOT_CONFIGURED;
			return;
		}
		$this->config = (object) $parseIniFile[$sc];
		if (!isset($this->config->defaultMessage) or !isset($this->config->serviceLink)) {
			$this->state = 'configuration for the code '.$sc.' is incoomplete.';
			$this->message = Config::$TEXT_SERVICE_UNAVAILABLE;
			return;	
		}
		if (filter_var($this->config->serviceLink, FILTER_VALIDATE_URL) === FALSE) {
			$this->state = 'the URL defined for the code '.$sc.' is incorrecte *** '.$this->config->serviceLink;
			$this->message = Config::$TEXT_SERVICE_UNAVAILABLE;
			return;

		}
		if ($this->config->defaultMessage != "") {
			$this->state = 'the code '.$sc.' is closed for all subscribers';
			$this->message = $this->config->defaultMessage;
			return;
		}
	}
}

?>