using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Policy;
using System.Text;
using System.Threading.Tasks;

public static class SysConfig
{
    public static DateTime ToUtc(this DateTime time)
    {
        return time.AddHours(-AppConfigHelper.Get("TimeZone", 8));
    }
    public static DateTime ToLocal(this DateTime utcTime)
    {
        return utcTime.AddHours(AppConfigHelper.Get("TimeZone", 8));
    }
    public static DateTimeOffset ToLocal(this DateTimeOffset utcTime)
    {
        return utcTime.ToOffset(TimeSpan.FromHours(AppConfigHelper.Get("TimeZone", 8)));
    }


    public static string GetBaseUrl()
    {
        return $"http://{IpHelper.GetLocalIp()}:{AppConfigHelper.Get("HttpPort", 8090)}/api/";
    }
    public static string GetUrl(string url, string baseUrl = null)
    {
        if (url.ToLower().StartsWith("http"))
        {
            return url;
        }
        else
        {
            if (url.StartsWith("/"))
            {
                url = url.Substring(1);
            }
            if (string.IsNullOrWhiteSpace(baseUrl))
                return $"{GetBaseUrl()}{url}";
            else
            {
                if (!baseUrl.EndsWith("/"))
                    baseUrl = $"{baseUrl}/";
                return $"{baseUrl}{url}";
            }
        }
    }
}