<?php

namespace Aiko;

use DateTime;
use DateTimeZone;
use ErrorException;
use PDO;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\ClientException;

class GeoTz
{
    protected $registry;
 
    private $endpoint;
 
    private $apiKey;
 
    private $client;

    public function __construct($registry)
    {
        $this->registry = $registry;
        $this->endpoint = $this->registry->config->api_geo_tz_endpoint;
        $this->apiKey   = $this->registry->config->api_geo_tz_key;
        $this->client   = new Client([
            'base_uri'     => $this->endpoint,
            'http_errors ' => false,
            'headers'      => [
                'Content-Type' => 'application/json',
                'Accept' => 'application/json',
            ]
        ]);
    }

    public function getCoordinateTimezone($lat, $lon)
    {
        return $this->getTimezoneApi($lat, $lon);
    }

    public function getTimezoneLocally($hourOffset)
    {
        $sign = $hourOffset < 0 ? '-' : '+';
        $date = new DateTime('now', new DateTimeZone($sign . abs($hourOffset)));
        return array(
            'date'      => $date->format('Y-m-d'),
            'time'      => $date->format('H:i:s'),
            'date_time' => $date->format('Y-m-d H:i:s'),
            'api'       => []
        );
    }

    private function getTimezoneApi($lat, $lon)
    {
        try {

            $response = $this->client->get('/timezone', [
                'query' => [
                    'apiKey' => $this->apiKey,
                    'lat'    => $lat,
                    'long'   => $lon
                ]
            ]);

            if ($response->getStatusCode() !== 200) {
                throw new ErrorException((string) $response->getBody()->getContents());
            }

            $data = $response->getBody()->getContents();
            $tz   = json_decode($data, true);
            $date = new DateTime('now', new DateTimeZone($tz['timezone']));

            return array(
                'date'      => $date->format('Y-m-d'),
                'time'      => $date->format('H:i:s'),
                'date_time' => $date->format('Y-m-d H:i:s')
            );
        } catch (ErrorException $e) {
            $this->registry
                ->log
                ->error('Geolocation / getTimezoneApi :'
                    . $e->getMessage() . ', Line: '
                    . $e->getLine() . ', File: '
                    . $e->getFile());
            return [];
        }
    }
}