<?php
if ( ! defined( 'ABSPATH' ) ) exit;

class ADVAIPBL_Api_Manager {
    private $options;

    public function __construct() {
        $this->options = get_option( 'ip-blocker-pro_settings', [] );
    }

    public function fetch_location( $ip ) {
        $provider = $this->options['geolocation_provider'] ?? 'ip-api.com';
        switch ($provider) {
            case 'ipinfo.io': return $this->fetch_from_ipinfo($ip);
            case 'ipapi.com': return $this->fetch_from_ipapi($ip);
            case 'ipstack.com': return $this->fetch_from_ipstack($ip);
            case 'geoiplookup.net': return $this->fetch_from_geoiplookup($ip);
            default: return $this->fetch_from_ip_api($ip);
        }
    }

    private function fetch_from_ip_api( $ip ) {
        $api_key  = $this->options['api_key_ip_apicom'] ?? '';
        $protocol = ! empty( $api_key ) ? 'https' : 'http';
        $url      = "{$protocol}://ip-api.com/json/{$ip}?fields=status,message,country,countryCode,regionName,city,lat,lon,isp,org";
        if ( $protocol === 'https' && ! empty( $api_key ) ) {
            $url .= '&key=' . esc_attr( $api_key );
        }
        $response = wp_remote_get( $url );
        if ( is_wp_error( $response ) ) { return null; }
        $body = json_decode( wp_remote_retrieve_body( $response ), true );
        if ( isset( $body['status'] ) && $body['status'] === 'success' ) {
            return [
                'country'      => $body['country'] ?? '',
                'country_code' => $body['countryCode'] ?? '',
                'region'       => $body['regionName'] ?? '',
                'city'         => $body['city'] ?? '',
                'lat'          => $body['lat'] ?? '',
                'lon'          => $body['lon'] ?? '',
                'isp'          => $body['isp'] ?? ($body['org'] ?? ''),
            ];
        }
        return null;
    }

    private function fetch_from_geoiplookup($ip) {
        $url = "https://json.geoiplookup.io/{$ip}";
        $response = wp_remote_get($url);
        if (is_wp_error($response)) { return null; }
        $body = json_decode(wp_remote_retrieve_body($response), true);
        if (!empty($body['country_name'])) {
            return [
                'country'      => $body['country_name'] ?? '',
                'country_code' => $body['country_code'] ?? '',
                'region'       => $body['region'] ?? '',
                'city'         => $body['city'] ?? '',
                'lat'          => $body['latitude'] ?? '',
                'lon'          => $body['longitude'] ?? '',
                'isp'          => $body['isp'] ?? '',
            ];
        }
        return null;
    }

    private function fetch_from_ipinfo($ip) {
        $api_key = $this->options['api_key_ipinfocom'] ?? '';
        if(empty($api_key)) return null;
        $url = "https://ipinfo.io/{$ip}?token=" . esc_attr($api_key);
        $response = wp_remote_get($url);
        if (is_wp_error($response)) { return null; }
        $body = json_decode(wp_remote_retrieve_body($response), true);
        if (!empty($body['city']) && isset($body['loc'])) {
            list($lat, $lon) = explode(',', $body['loc']);
            return [
                'country'      => $body['country'] ?? '',
                'country_code' => $body['country'] ?? '',
                'region'       => $body['region'] ?? '',
                'city'         => $body['city'] ?? '',
                'lat'          => $lat,
                'lon'          => $lon,
                'isp'          => $body['org'] ?? '',
            ];
        }
        return null;
    }

    private function fetch_from_ipapi($ip) {
        $api_key = $this->options['api_key_ipapicom'] ?? '';
        if(empty($api_key)) return null;
        $url = "http://api.ipapi.com/api/{$ip}?access_key=" . esc_attr($api_key);
        $response = wp_remote_get($url);
        if (is_wp_error($response)) { return null; }
        $body = json_decode(wp_remote_retrieve_body($response), true);
        if (!isset($body['error'])) {
            return [
                'country'      => $body['country_name'] ?? '',
                'country_code' => $body['country_code'] ?? '',
                'region'       => $body['region_name'] ?? '',
                'city'         => $body['city'] ?? '',
                'lat'          => $body['latitude'] ?? '',
                'lon'          => $body['longitude'] ?? '',
                'isp'          => $body['connection']['isp'] ?? '',
            ];
        }
        return null;
    }

    private function fetch_from_ipstack($ip) {
        $api_key = $this->options['api_key_ipstackcom'] ?? '';
        if(empty($api_key)) return null;
        $url = "http://api.ipstack.com/{$ip}?access_key=" . esc_attr($api_key);
        $response = wp_remote_get($url);
        if (is_wp_error($response)) { return null; }
        $body = json_decode(wp_remote_retrieve_body($response), true);
        if (!isset($body['error'])) {
            return [
                'country'      => $body['country_name'] ?? '',
                'country_code' => $body['country_code'] ?? '',
                'region'       => $body['region_name'] ?? '',
                'city'         => $body['city'] ?? '',
                'lat'          => $body['latitude'] ?? '',
                'lon'          => $body['longitude'] ?? '',
                'isp'          => $body['connection']['isp'] ?? '',
            ];
        }
        return null;
    }
}