<?php
ini_set("memory_limit","1000M");
date_default_timezone_set('America/Edmonton');

// if started from commandline, wrap parameters to $_POST and $_GET
if (!isset($_SERVER["HTTP_HOST"]) && isset($argv[1])) {
  parse_str($argv[1], $_REQUEST);
}

$api_key = "cC7d2DHDnEwJTwiHLakhyjZGKLyWR";
$web_hook_room = "https://example.com/_matrix/maubot/plugin/botincomingwebhook/webhook/r0?room=%21xxxxxxxxxxxxx:example.com";
$web_hook_secret = "s5dXEqBThKiuwQj8etALv6A";

if( isset($_REQUEST['apiKey']) && $_REQUEST['apiKey'] == $api_key ) {

	$web_result = "";
	$records_inserted = 0;

	$day_of_month = date("j");
	$hour_of_day = date("G");

	try {
		$host		=	'127.0.0.1';
		$user		=	'dbuser';
		$pass		=	'password';
		$database	=	'datawarehouse';
		// connect to the mysql database server.
		$connect = mysqli_connect ( $host, $user, $pass ) ;
		if ( ! $connect )
		{
			exit();
		}
		mysqli_select_db ( $connect,$database);

		// Get the new queries
		$web_result = file_get_contents("https://example.com/getDBLog.php?apiKey=".$api_key."&timestamp=1614301200");
		// Save a copy for debugging
		file_put_contents(dirname(__FILE__) . "/output_".$day_of_month."_".$hour_of_day.".json", $web_result);
		// Parse the queries
		$web_result = iconv('UTF-8', 'UTF-8//IGNORE', utf8_encode($web_result));
		$json_object = json_decode($web_result);
		switch (json_last_error()) {
			case JSON_ERROR_NONE:
				echo ' - No errors';
			break;
			case JSON_ERROR_DEPTH:
				echo ' - Maximum stack depth exceeded';
			break;
			case JSON_ERROR_STATE_MISMATCH:
				echo ' - Underflow or the modes mismatch';
			break;
			case JSON_ERROR_CTRL_CHAR:
				echo ' - Unexpected control character found';
			break;
			case JSON_ERROR_SYNTAX:
				echo ' - Syntax error, malformed JSON';
			break;
			case JSON_ERROR_UTF8:
				echo ' - Malformed UTF-8 characters, possibly incorrectly encoded';
			break;
			default:
				echo ' - Unknown error';
			break;
		}

		if($json_object->message != ""){
			error_log($web_result);

			// Push to Matrix
			$ch = curl_init();
			curl_setopt($ch, CURLOPT_URL,$web_hook_room);
			curl_setopt($ch, CURLOPT_POST, 1);
			curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(array('secret' => $web_hook_secret, 'message' => "Error on the data warehouse")));
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
			curl_setopt( $ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
			$result = curl_exec($ch);
			curl_close($ch);

			exit();
		}else{
			foreach($json_object->data->transactions as $query) {
				$result = mysqli_query ( $connect, $query->argument );
				$records_inserted = $records_inserted +1;
			}

			// Push to Matrix
			$ch = curl_init();
			curl_setopt($ch, CURLOPT_URL,$web_hook_room);
			curl_setopt($ch, CURLOPT_POST, 1);
			curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(array('secret' => $web_hook_secret, 'message' => "Data warehouse inserted ".$records_inserted." queries")));
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
			curl_setopt( $ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
			$result = curl_exec($ch);
			curl_close($ch);
		}
	}catch (Exception $e) {
		$error_message = 'Exception Message: ' .$e->getMessage();
		error_log($error_message);
		error_log($web_result);

		// Push to Matrix
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL,$web_hook_room);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(array('secret' => $web_hook_secret, 'message' => "Error on the data warehouse")));
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt( $ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
		$result = curl_exec($ch);
		curl_close($ch);
	}

}else{
	echo '{ "message": "Invalid post variables", "data": {}}';
}
?>