<?php

namespace coordParser;

class NextGisParser
{

    const URL = 'https://geoservices.nextgis.com';
    const API_KEY = 'dc0010ab8f32858cfd83ebe92f0888df';

    const HOUR_LIMIT = 1000; // На самом деле 1050

    const TYPE_PARCELS = 1;
    const TYPE_UNITS = 2;
    const TYPE_AREA = 4;
    const TYPE_BUILDINGS = 5;

    public array $state = ['requests' => []];

    public function __construct()
    {
        $tempDir = __DIR__ . '/tmp';
        if (!file_exists($tempDir)) {
            mkdir($tempDir);
        }

        $todayState = $tempDir . '/' . date('Y-m-d') . '_nextGisState.json';
        if (!file_exists($todayState)) {
            file_put_contents($todayState, json_encode($this->state));
        }

        $this->state = json_decode(file_get_contents($todayState), true);
    }

    public function getLimitRemain(): int
    {
        $thisHourRequests = $this->state['requests'][date('H')] ?? 0;

        return self::HOUR_LIMIT - $thisHourRequests;
    }

    public function advice(): void
    {
        if (empty($this->state['requests'][date('H')])) {
            $this->state['requests'][date('H')] = 0;
        }

        $this->state['requests'][date('H')]++;
        $this->saveState();
    }

    public function adviceError(): void
    {
        if (empty($this->state['errors'][date('H')])) {
            $this->state['errors'][date('H')] = 0;
        }

        $this->state['errors'][date('H')]++;
        $this->saveState();
    }

    public function saveState()
    {
        $tempDir = __DIR__ . '/tmp';
        if (!file_exists($tempDir)) {
            mkdir($tempDir);
        }

        $todayState = $tempDir . '/' . date('Y-m-d') . '_nextGisState.json';

        file_put_contents($todayState, json_encode($this->state));
    }

    private function request(string $apiMethod, array $query = [])
    {
        $query['apikey'] = self::API_KEY;
        $url = self::URL . $apiMethod . '?' . http_build_query($query);

        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
        $response = curl_exec($curl);

        $this->advice();

        if (curl_errno($curl)) {
            echo 'Ошибка cURL: ' . curl_error($curl);
        }

        curl_close($curl);

        return $response;
    }

    public function getById(string $id, int $type = self::TYPE_PARCELS)
    {
        $query = [
            'type' => $type,
            'id' => $id,
            'cache' => 'included',
        ];

        return json_decode($this->request('/pkk/features/by_id', $query));
    }

    public function getByPositions(float $lat, float $lon, int $type = self::TYPE_PARCELS)
    {
        $query = [
            'type' => $type,
            'lat' => $lat,
            'lon' => $lon,
            'cache' => 'included',
        ];

        return json_decode($this->request('/pkk/features/by_pos', $query));
    }

}