using Microsoft.AspNetCore.Http;

namespace Core_Archi.Helpers;

public class UserHelper
{
    public string? ExtractBrowser(string? userAgent)
    {
        if (string.IsNullOrEmpty(userAgent)) return null;

        if (userAgent.Contains("Chrome")) return "Chrome";
        if (userAgent.Contains("Firefox")) return "Firefox";
        if (userAgent.Contains("Safari") && !userAgent.Contains("Chrome")) return "Safari";
        if (userAgent.Contains("Edge")) return "Edge";
        if (userAgent.Contains("Opera")) return "Opera";

        return "Other";
    }

    public string? ExtractOS(string? userAgent)
    {
        if (string.IsNullOrEmpty(userAgent)) return null;

        if (userAgent.Contains("Windows")) return "Windows";
        if (userAgent.Contains("Mac OS")) return "macOS";
        if (userAgent.Contains("Linux")) return "Linux";
        if (userAgent.Contains("Android")) return "Android";
        if (userAgent.Contains("iOS") || userAgent.Contains("iPhone") || userAgent.Contains("iPad")) return "iOS";

        return "Other";
    }

    public Guid GetUserIdFromClaims(HttpContext httpContext)
    {
        var userIdClaim = httpContext.User.FindFirst("userId")
            ?? httpContext.User.FindFirst("UserId")
            ?? httpContext.User.FindFirst("sub");

        if (userIdClaim == null || !Guid.TryParse(userIdClaim.Value, out var userId))
            throw new ArgumentException("User ID not found in token");

        return userId;
    }
}