<?php
header('Content-Type: application/json');

use JsonMachine\JsonDecoder\ExtJsonDecoder;
use JsonMachine\Items;

require_once __DIR__ . '/vendor/autoload.php';

// if (isset($_REQUEST['c'])) {
// 	$alpha_2_code = trim($_REQUEST['c']);
// 	if (isset($_REQUEST['data'])) {
// 		$data = trim($_REQUEST['data']);
// 		switch ($data) {
// 			case 'state':
// 				$cities = Items::fromFile('cities.json', ['decoder' => new ExtJsonDecoder(true)]);
// 				$filtered_cities = array();
// 				foreach ($cities as $name => $data) {
// 					if ($data['country_code'] == $alpha_2_code) {
// 						$filtered_cities[] = array(
// 							'name' => $data['name'],
// 							/*'country_name'=>$data['country_name'],*/
// 							'latitude' => $data['latitude'],
// 							'longitude' => $data['longitude'],
// 						);
// 					}
// 				}
// 				echo json_encode($filtered_cities);
// 				break;
// 			case 'city':
// 				$cities = Items::fromFile('cities.json', ['decoder' => new ExtJsonDecoder(true)]);
// 				$filtered_cities = array();
// 				foreach ($cities as $name => $data) {
// 					if ($data['country_code'] == $alpha_2_code) {
// 						$filtered_cities[] = array(
// 							'name' => $data['name'],
// 							/*'country_name'=>$data['country_name'],*/
// 							'latitude' => $data['latitude'],
// 							'longitude' => $data['longitude'],
// 						);
// 					}
// 				}
// 				echo json_encode($filtered_cities);
// 				break;
// 		}
// 	} else {
// 		//for specific country only

// 	}
// }
if ((!empty($_REQUEST['data']) && trim($_REQUEST['data']) == 'cities') && !empty($_REQUEST['state_id'])) {
	$state_id = trim($_REQUEST['state_id']);
	$cities = Items::fromFile('states+cities.json', ['decoder' => new ExtJsonDecoder(true)]);
	foreach ($cities as $name => $data) {
		if ($data['id'] == $state_id) {
			echo json_encode($data['cities']);
			exit;
		}
	}
} else if ((!empty($_REQUEST['data']) && trim($_REQUEST['data']) == 'states') && !empty($_REQUEST['country'])) {
	$alpha_2_code = trim($_REQUEST['country']);
	$states = Items::fromFile('countries+states.json', ['decoder' => new ExtJsonDecoder(true)]);
	foreach ($states as $name => $data) {
		if ($data['iso2'] == $alpha_2_code) {
			echo json_encode($data['states']);
			exit;
		}
	}
} else if (!empty($_REQUEST['country'])) {
	$alpha_2_code = trim($_REQUEST['country']);
	$countries = Items::fromFile('countries.json', ['decoder' => new ExtJsonDecoder(true)]);
	foreach ($countries as $name => $data) {
		if ($data['iso2'] == $alpha_2_code) {
			echo json_encode($data);
			exit;
		}
	}
} else {
	//for all countries 
	include 'countries.json';
}

/*
country list
counrty data
state list  (require  country)
city list (require state) 
*/