package util

import (
	"encoding/json"
	"fmt"
	"log"

	"gitea.local/admin/hspguard/internal/types"
	"github.com/avct/uasurfer"
)

func BuildDeviceInfo(userAgent string, remoteAddr string) []byte {
	var deviceInfo types.DeviceInfo

	parsed := uasurfer.Parse(userAgent)

	deviceInfo.Browser = parsed.Browser.Name.StringTrimPrefix()
	deviceInfo.BrowserVersion = fmt.Sprintf("%d.%d.%d", parsed.Browser.Version.Major, parsed.Browser.Version.Minor, parsed.Browser.Version.Patch)
	deviceInfo.DeviceName = fmt.Sprintf("%s %s", parsed.OS.Platform.StringTrimPrefix(), parsed.OS.Name.StringTrimPrefix())
	deviceInfo.DeviceType = parsed.DeviceType.StringTrimPrefix()
	deviceInfo.OS = parsed.OS.Platform.StringTrimPrefix()
	deviceInfo.OSVersion = fmt.Sprintf("%d.%d.%d", parsed.OS.Version.Major, parsed.OS.Version.Minor, parsed.OS.Version.Patch)
	deviceInfo.UserAgent = userAgent

	if location, err := GetLocation(remoteAddr); err != nil {
		log.Printf("WARN: Failed to get location from ip (%s): %v\n", remoteAddr, err)
	} else {
		log.Printf("DEBUG: Response from IP fetcher: %#v\n", location)
		deviceInfo.Location = fmt.Sprintf("%s, %s, %s", location.Country, location.Region, location.City)
	}

	serialized, err := json.Marshal(deviceInfo)
	if err != nil {
		log.Printf("ERR: Failed to serialize device info: %v\n", err)
		serialized = []byte{'{', '}'}
	}

	return serialized
}