// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
// Website: https://www.blazor.zone or https://argozhang.github.io/

using BootstrapBlazor.Components;
using BootstrapBlazor.Shared.Services;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Localization;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Threading.Tasks;

namespace BootstrapBlazor.Shared.Samples.Table
{
    /// <summary>
    /// Table 组件数据导出示例
    /// </summary>
    public partial class TablesExport
    {
        /// <summary>
        /// 获得/设置 版本号字符串
        /// </summary>
        private string Version { get; set; } = "fetching";

        private static IEnumerable<int> PageItemsSource => new int[] { 4, 10, 20 };

        [NotNull]
        private List<Foo>? Items { get; set; }

        [Inject]
        [NotNull]
        private IStringLocalizer<Foo>? Localizer { get; set; }

        [Inject]
        [NotNull]
        private VersionService? VersionManager { get; set; }

        /// <summary>
        /// OnInitialized 方法
        /// </summary>
        protected override void OnInitialized()
        {
            base.OnInitialized();

            Items = Foo.GenerateFoo(Localizer);
        }

        private Task<QueryData<Foo>> OnQueryAsync(QueryPageOptions options)
        {
            IEnumerable<Foo> items = Items;

            // 设置记录总数
            var total = items.Count();

            // 内存分页
            items = items.Skip((options.PageIndex - 1) * options.PageItems).Take(options.PageItems).ToList();

            return Task.FromResult(new QueryData<Foo>()
            {
                Items = items,
                TotalCount = total
            });
        }

        private static Task<bool> ExportAsync(IEnumerable<Foo> Items) => Task.FromResult(true);

        /// <summary>
        /// OnInitializedAsync 方法
        /// </summary>
        /// <returns></returns>
        protected override async Task OnInitializedAsync()
        {
            Version = await VersionManager.GetVersionAsync("bootstrapblazor.tableexport");
        }
    }
}
