using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace VOL.Core.Utilities
{
    public class HttpManager
    {
        public static async Task<string> HttpPostAsync(string url, string postData = null, string contentType = "application/json", int timeOut = 30, Dictionary<string, string> headers = null)
        {
            using (var client = new HttpClient())
            {
                client.Timeout = TimeSpan.FromSeconds(timeOut);

                if (headers != null)
                {
                    foreach (var header in headers)
                    {
                        client.DefaultRequestHeaders.Add(header.Key, header.Value);
                    }
                }

                HttpContent content = null;
                if (!string.IsNullOrEmpty(postData))
                {
                    content = new StringContent(postData, Encoding.UTF8, contentType);
                }

                try
                {
                    var response = await client.PostAsync(url, content);
                    response.EnsureSuccessStatusCode();
                    return await response.Content.ReadAsStringAsync();
                }
                catch (Exception ex)
                {
                    return ex.Message;
                }
            }
        }
        public static async Task<string> HttpGetAsync(string url, Dictionary<string, string> headers = null)
        {
            using (var client = new HttpClient())
            {
                if (headers != null)
                {
                    foreach (var header in headers)
                    {
                        client.DefaultRequestHeaders.Add(header.Key, header.Value);
                    }
                }

                try
                {
                    var response = await client.GetAsync(url);

                    response.EnsureSuccessStatusCode();

                    return await response.Content.ReadAsStringAsync();
                }
                catch (Exception ex)
                {
                    return ex.Message;
                }
            }
        }
    }
}