// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the Apache 2.0 License
// See the LICENSE file in the project root for more information.
// Maintainer: Argo Zhang(argo@live.ca) Website: https://www.blazor.zone

namespace BootstrapBlazor.Server.Components.Samples.Table;

/// <summary>
/// Excel 示例代码
/// </summary>
public partial class TablesExcel
{
    /// <summary>
    /// Foo 类为Demo测试用，如有需要请自行下载源码查阅
    /// Foo class is used for Demo test, please download the source code if necessary
    /// https://gitee.com/LongbowEnterprise/BootstrapBlazor/blob/main/src/BootstrapBlazor.Server/Data/Foo.cs
    /// </summary>
    [NotNull]
    private List<Foo>? Items { get; set; }

    [NotNull]
    private ConsoleLogger? Logger { get; set; }
    /// <summary>
    /// 绑定数据源代码
    /// </summary>
    private static IEnumerable<int> PageItemsSource => new int[]
    {
        10,
        20,
        40
    };

    /// <summary>
    /// OnInitialized 方法
    /// </summary>
    protected override void OnInitialized()
    {
        base.OnInitialized();
        Items = Foo.GenerateFoo(LocalizerFoo);
    }

    private Task<QueryData<Foo>> OnQueryAsync(QueryPageOptions options)
    {
        IEnumerable<Foo> items = Items;
        // 过滤
        var isFiltered = false;
        if (options.Filters.Any())
        {
            items = items.Where(options.Filters.GetFilterFunc<Foo>());
            isFiltered = true;
        }

        // 排序
        var isSorted = false;
        if (!string.IsNullOrEmpty(options.SortName))
        {
            var invoker = Foo.GetNameSortFunc();
            items = invoker(items, options.SortName, options.SortOrder);
            isSorted = true;
        }

        // 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, IsSorted = isSorted, IsFiltered = isFiltered, IsSearch = true });
    }

    private Task<Foo> OnAddAsync()
    {
        // Excel 模式下新建要求更改数据源
        var foo = new Foo()
        {
            DateTime = DateTime.Now,
            Address = $"自定义地址  {DateTime.Now.Second}"
        };
        Items.Insert(0, foo);
        // 输出日志信息
        Logger.Log($"集合值变化通知 列: {Items.Count} - 类型: Add");
        return Task.FromResult(foo);
    }

    private Task<bool> OnSaveAsync(Foo item, ItemChangedType changedType)
    {
        // 对象已经更新
        // 输出日志信息
        Logger.Log($"单元格变化通知 类: Foo - 值: DateTime {item.DateTime}");
        return Task.FromResult(true);
    }

    private Task<bool> OnDeleteAsync(IEnumerable<Foo> items)
    {
        Items.RemoveAll(i => items.Contains(i));
        // 输出日志信息
        Logger.Log($"集合值变化通知 列: {Items.Count} - 类型: Delete");
        return Task.FromResult(true);
    }
}
