package publicIp

import (
	"fmt"
	"io"
	"net/http"
)

func ReadIp() (string, error) {
	fmt.Printf("Reading IP address ...\n")
	ip, errIpify := _readIpFromIpify()
	if errIpify == nil {
		fmt.Printf("IP address from ipify: %s\n", ip)
		return ip, nil
	}

	ip, errIdentMe := _readIpFromIdentMe()
	if errIdentMe == nil {
		fmt.Printf("IP address from identme: %s\n", ip)
		return ip, nil
	}

	return "", fmt.Errorf("error getting IP from all services: %v, %v", errIpify, errIdentMe)
}

func _readIpFromIpify() (string, error) {
	fmt.Printf("Getting IP address from ipify ...\n")
	resp, err := http.Get("https://api.ipify.org?format=text")

	if err != nil {
		return "", fmt.Errorf("error getting IP from ipify: %v", err)
	}

	defer resp.Body.Close()

	ip, err := io.ReadAll(resp.Body)
	if err != nil {
		return "", fmt.Errorf("error reading IP from ipify: %v", err)
	}

	fmt.Printf("IP address from ipify: %s\n", string(ip))

	return string(ip), nil
}

func _readIpFromIdentMe() (string, error) {
	fmt.Printf("Getting IP address from identme ...\n")
	resp, err := http.Get("https://4.ident.me")

	if err != nil {
		return "", fmt.Errorf("error getting IP from identme: %v", err)
	}

	defer resp.Body.Close()

	ip, err := io.ReadAll(resp.Body)
	if err != nil {
		return "", fmt.Errorf("error reading IP from identme: %v", err)
	}

	fmt.Printf("IP address from identme: %s\n", string(ip))

	return string(ip), nil
}