<?php
# CSE 154, Marty Stepp
# This web service takes a name and gender as parameters and outputs a set of
# rankings of popularity of that name as JSON data.
# For example, babynames.php?name=Morgan&gender=m outputs:
# {"name": "Morgan", "gender": "m",
#  "rankings": [375, 410, 392, 478, 579, 507, 636, 499, 446, 291, 278, 332, 518]}

if (!isset($_GET["name"])) {
	header("HTTP/1.1 400 Invalid Request");
	die("You didn't pass a name!");
}
if (!isset($_GET["gender"])) {
	header("HTTP/1.1 400 Invalid Request");
	die("You didn't pass a gender!");
}
$name = $_GET["name"];
$gender = $_GET["gender"];

# rank.txt, each line has the following format:
# Aaron m 147 193 187 199 250 237 230 178 52 34 34 41 55
$lines = file("rank.txt", FILE_IGNORE_NEW_LINES);
foreach ($lines as $line) {
	$pieces = explode(" ", $line);
	if ($pieces[0] == $name && $pieces[1] == $gender) {
		# our initial version just outputs the data as plain text
		# header("Content-type: text/plain");
		# print $line;
		
		$name = array_shift($pieces);
		$gender = array_shift($pieces);
		
		# create a PHP associative-array which can be converted to a JSON string
		$data = array(
			"name" => $name,
			"gender" => $gender,
			"rankings" => $pieces
		);
		
		header("Content-type: application/json");
		print json_encode($data);
		break;
	}
}
?>