using System.Linq;
using System;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Primitives;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

namespace FastReport.Web.Blazor.Components.Internal
{
    public partial class ModalContainer
    {
        [Inject]
        internal NavigationManager NavManager { get; set; }


        private string ExportParametersToString()
        {
            if (!ExportParameters.Any())
                return "";

            var uri = string.Join('&',
                    ExportParameters.Select(kvp =>
                        $"{kvp.Key}={kvp.Value}"));

#if DEBUG
            Console.WriteLine(uri);
#endif
            return uri;
        }


        private async Task OkClick()
        {
            if (WebReport.ExportType == Exports.Email)
            {
                if (string.IsNullOrEmpty(ExportParameters["Address"])) return;

                await SendEmailAsync();
            }
            else
            {
                var href = $"{ExportsHelper.GetHref(WebReport)}&{ExportParametersToString()}";

                if (WebReport.HasValidationError)
                    return;

                ExportParameters.Clear();

                WebReport.EnableModalDialog = false;
                NavManager.NavigateTo(href, true);
            }
        }

        private async Task SendEmailAsync()
        {
            var href = $"{WebReport.templte_email_export_url}";

            var formContent = new FormUrlEncodedContent(new Dictionary<string, string>
            {
                {"Address", ExportParameters["Address"]},
                {"Subject", ExportParameters["Subject"]},
                {"MessageBody", ExportParameters["MessageBody"]},
                {"ExportFormat", ExportParameters["ExportFormat"]},
                {"NameAttachmentFile", ExportParameters["NameAttachmentFile"]}
            });

            ExportParameters.Clear();

            WebReport.EnableModalDialog = false;

            var baseUri = new Uri(NavManager.BaseUri);
            var absoluteUri = new Uri(baseUri, href);

            using var httpClient = new HttpClient();
            var response = await httpClient.PostAsync(absoluteUri, formContent);

            if (response.IsSuccessStatusCode)
            {
                await ShowPositivePopup();
            }
            else if (response.StatusCode == HttpStatusCode.BadRequest)
            {
                await ShowNegativePopup();
            }
        }
    }
}