@page "/fetchdata"
@inject HttpClient Http
@using AntDesign.TableModels


<h1>Weather forecast</h1>

<p>This component demonstrates fetching data from the server.</p>

@if (forecasts == null)
{
    <p><em>Loading...</em></p>
}
else
{
    <Table @ref="table"
           TItem="WeatherForecast"
           DataSource="@forecasts"
           Total="_total"
           @bind-PageIndex="_pageIndex"
           @bind-PageSize="_pageSize"
           @bind-SelectedRows="selectedRows"
           OnChange="OnChange">
        <Selection Key="@(context.Id.ToString())" />
        <AntDesign.Column @bind-Field="@context.Id" Sortable />
        <AntDesign.Column @bind-Field="@context.Date" Format="yyyy-MM-dd" Sortable />
        <AntDesign.Column @bind-Field="@context.TemperatureC" Sortable />
        <AntDesign.Column Title="Temp. (F)" Field="@context.TemperatureF" />

        <AntDesign.Column @bind-Field="@context.Summary" Sortable Filterable />
        <ActionColumn>
            <Space>
                <SpaceItem><Button Danger OnClick="()=>Delete(context.Id)">Delete</Button></SpaceItem>
            </Space>
        </ActionColumn>
    </Table>

}

@using System.Text.Json;
@code {
    private WeatherForecast[] forecasts;
    IEnumerable<WeatherForecast> selectedRows;
    ITable table;

    int _pageIndex = 1;
    int _pageSize = 10;
    int _total = 0;

    protected override async Task OnInitializedAsync()
    {
        forecasts = await Http.GetFromJsonAsync<WeatherForecast[]>("sample-data/weather.json");
    }

    private static readonly string[] Summaries = new[]
    {
        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
    };

    public async Task OnChange(QueryModel<WeatherForecast> queryModel)
    {
        Console.WriteLine(JsonSerializer.Serialize(queryModel));
    }

    public Task<WeatherForecast[]> GetForecastAsync(int pageIndex, int pageSize)
    {
        var rng = new Random();
        return Task.FromResult(Enumerable.Range((pageIndex - 1) * pageSize + 1, pageSize).Select(index =>
        {
            var temperatureC = rng.Next(-20, 55);
            return new WeatherForecast
            {
                Id = index,
                Date = DateTime.Now.AddDays(index),
                TemperatureC = temperatureC,
                Summary = Summaries[rng.Next(Summaries.Length)]

            };
        }).ToArray());
    }

    public void RemoveSelection(int id)
    {
        var selected = selectedRows.Where(x => x.Id != id);
        selectedRows = selected;
    }

    private void Delete(int id)
    {
        forecasts = forecasts.Where(x => x.Id != id).ToArray();
        _total = forecasts.Length;
    }

    public class WeatherForecast
    {
        public int Id { get; set; }

        public DateTime Date { get; set; }

        public int TemperatureC { get; set; }

        public string Summary { get; set; }

        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
    }
}