using System;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
using CPOD.Helpers;
using CPOD.Interfaces;
using CPOD.Models;
using Xamarin.Forms;

namespace CPOD.Services
{
    class LoginPageService : ILoginPageService
    {

        private readonly HttpClient _httpClient;

        public LoginPageService()
        {
            _httpClient = new HttpClient { BaseAddress = new Uri("https://www.mycpod.com/api/") };

        }
        public async Task<bool> LoginTask(string username, string password)
        {
            try
            {
                var response = await _httpClient.GetAsync($"mobile?cmd=login&username={username}&password={password}");
                if (response.IsSuccessStatusCode)
                {
                    var content = await response.Content.ReadAsStringAsync();
                    //DataSingleton.Instance.ResultLogin = content.ParseXml<User>();
                    Application.Current.Properties["LoginResult"] = content.ParseXml<User>();
                    var user = (User) Application.Current.Properties["LoginResult"];
                    if (user != null && !user.Status.Equals("nok")) //TODO: Implement error log
                    {
                        var authCode = user.AuthCode;
                        var agentId = user.Agents.First().Id;    //TODO: Implement using several agents
                        var downloadData = await AgentStatusTask(authCode, agentId);
                        if (downloadData)
                            return true;
                    }
                }
            }
            catch (Exception exception)
            {
                LoggerHelper.ShowErrorMessage(exception);
            }
            return false;
        }

        public async Task<bool> AgentStatusTask(int authCode, int agentId)
        {
            try
            {
                var response = await _httpClient.GetAsync($"mobile?cmd=agentstatus&authcode={authCode}&agentid={agentId}");
                if (response.IsSuccessStatusCode)
                {
                    var content = await response.Content.ReadAsStringAsync();
                    //DataSingleton.Instance.ResultAgentStatus = content.ParseXml<AgentStatus>();
                    Application.Current.Properties["AgentStatus"] = content.ParseXml<AgentStatus>();
                    return true;
                }
            }
            catch (Exception exception)
            {
                LoggerHelper.ShowErrorMessage(exception);
            }
            return false;
        }
    }
}