using System.Collections.Generic;
using System.Linq;
using C1.Web.Mvc;
using C1.Web.Mvc.Serialization;
using Microsoft.AspNetCore.Mvc;
using WebApiExplorer.Models;

namespace WebApiExplorer.Controllers
{
    public partial class MVCFlexGridController : Controller
    {
        private readonly GridExportImportOptions _flexGridGroupModel = new GridExportImportOptions
        {
            NeedExport = true,
            NeedImport = false,
            OnlyCurrentPage = false,
            IncludeColumnHeaders = true
        };

        public IActionResult Grouping()
        {
            ViewBag.DemoSettingsModel = new ClientSettingsModel
            {
                Settings = new Dictionary<string, object[]>
                {
                    {"GroupBy", new object[]{"ShipCountry", "ShipCity", "ShipCountry and ShipCity", "Freight", "ShippedDate","None"}}
                }
            };
            ViewBag.Options = _flexGridGroupModel;
            return View();
        }

        public IActionResult Grouping_Bind([C1JsonRequest] CollectionViewRequest<Order> requestData)
        {
            return this.C1Json(CollectionViewHelper.Read(requestData, _db.Orders.ToList()));
        }
    }
}

@{
    GridExportImportOptions optionsModel = ViewBag.Options;
    ViewBag.DemoSettings = true;
    var controlId = (ViewBag.DemoSettingsModel as ClientSettingsModel).ControlId;
}

<c1-flex-grid id="@controlId" height="350px" is-read-only="true" show-groups="true"
              auto-generate-columns="false" group-by="ShipCountry">
    <c1-items-source read-action-url="@Url.Action("Grouping_Bind")" page-size="50"></c1-items-source>
    <c1-flex-grid-column binding="OrderID" header="Id"></c1-flex-grid-column>
    <c1-flex-grid-column binding="ShipCountry" header="Ship Country"></c1-flex-grid-column>
    <c1-flex-grid-column binding="ShipCity" header="Ship City"></c1-flex-grid-column>
    <c1-flex-grid-column binding="ShippedDate" header="Shipped Date"></c1-flex-grid-column>
    <c1-flex-grid-column binding="ShipAddress" header="Ship Address" width="*"></c1-flex-grid-column>
    <c1-flex-grid-column binding="Freight" header="Freight" format="c2" aggregate="Sum"></c1-flex-grid-column>
</c1-flex-grid>

<c1-pager owner="@controlId"></c1-pager>

@section Settings{
    <script>
        function customChangeGroupBy(grid, name) {
            var groupDescriptions = grid.collectionView.groupDescriptions;
            grid.beginUpdate();
            groupDescriptions.clear();

            if (name.indexOf("ShipCountry") > -1) {
                groupDescriptions.push(new wijmo.collections.PropertyGroupDescription("ShipCountry"));
            }

            if (name.indexOf("ShipCity") > -1) {
                groupDescriptions.push(new wijmo.collections.PropertyGroupDescription("ShipCity"));
            }

            if (name.indexOf("ShippedDate") > -1) {
                groupDescriptions.push(new wijmo.collections.PropertyGroupDescription("ShippedDate", function (item, prop) {
                    var value = item[prop];
                    if (!value) {
                        return "";
                    } else {
                        return value.getFullYear() + "/" + (value.getMonth() + 1);
                    }
                }));
            }

            if (name.indexOf("Freight") > -1) {
                groupDescriptions.push(new wijmo.collections.PropertyGroupDescription("Freight", function (item, prop) {
                    var value = item[prop];
                    if (value <= 50) {
                        return "0 to 50";
                    }

                    if (value > 50 && value <= 100) {
                        return "50 to 100";
                    }

                    if (value > 100 && value <= 150) {
                        return "100 to 150";
                    }

                    return "More than 150";
                }));
            }

            grid.endUpdate();
        }
    </script>
    @await Html.PartialAsync("_FlexGridOptions", optionsModel)
}

@section Description{
    <p>@Html.Raw(MVCFlexGrid.Grouping_Text0)</p>
}