@page "/editorforms"

<h3>EditorForm 表单组件</h3>

<h4>通过绑定数据模型自动呈现编辑表单</h4>

<p><code>EditorForm</code> 组件是一个非常实用的组件，当进行数据编辑时，仅需要将 <code>Model</code> 属性赋值即可。</p>

<ul class="ul-demo">
    <li>绑定模型默认自动生成全部属性，可以通过设置 <code>AutoGenerateAllItem</code> 更改为不自动生成</li>
    <li>如不需要编辑列，设置 <code>Editable</code> 即可，默认值为 <code>true</code> 生成编辑组件</li>
    <li>复杂编辑列，设置 <code>EditTemplate</code> 模板，进行自定义组件进行编辑</li>
    <li>表单内按钮可以设置多个，设置 <code>Buttons</code> 模板即可</li>
</ul>

<Block Title="基础用法" Introduction="通过绑定 <code>TModel</code> 数据模型，自动生成模型各个字段的可编辑表单">
    <p>直接绑定模型 <code>Model</code>，设置 <b>Education</b> 字段不显示</p>
    <GroupBox Title="表单示例" style="margin-top: 1.5rem;">
        <EditorForm Model="@Model">
            <FieldItems>
                <EditorItem @bind-Field="@Model.Education" Editable="false" />
                <EditorItem @bind-Field="@Model.Complete" Editable="false" />
                <EditorItem @bind-Field="@Model.Hobby">
                    <EditTemplate Context="value">
                        @{
                            var model = value as Foo;
                        }
                        <div class="form-group col-12">
                            <CheckboxList TValue="IEnumerable<string>" @bind-Value="@model!.Hobby" Items="@Hobbys" />
                        </div>
                    </EditTemplate>
                </EditorItem>
            </FieldItems>
            <Buttons>
                <Button Icon="fa fa-save" Text="提交" />
            </Buttons>
        </EditorForm>
    </GroupBox>
</Block>

<Block Title="开启数据验证" Introduction="通过嵌套 <code>ValidateForm</code> 组件实现数据合规检查功能">
    <p>组件内置到 <code>ValidateForm</code> 内开启数据合规检查功能，<b>爱好</b> 字段使用 <code>EditTemplate</code> 模板自定义组件呈现数据</p>
    <p>通过设置 <code>Readonly</code> 属性，使 <code>生日</code> 字段为只读</p>
    <GroupBox Title="表单示例" style="margin-top: 1.5rem;">
        <ValidateForm Model="@ValidateModel">
            <EditorForm TModel="Foo">
                <FieldItems>
                    <EditorItem @bind-Field="@Model.DateTime" Readonly="true" />
                    <EditorItem @bind-Field="@Model.Hobby">
                        <EditTemplate Context="value">
                            @{
                                var model = value as Foo;
                            }
                            <div class="form-group col-12">
                                <CheckboxList @bind-Value="@model!.Hobby" Items="@Hobbys" />
                            </div>
                        </EditTemplate>
                    </EditorItem>
                    <EditorItem @bind-Field="@Model.Complete">
                        <EditTemplate Context="value">
                            <div class="form-group col-6">
                                <Switch @bind-Value="((Foo)value).Complete" />
                            </div>
                        </EditTemplate>
                    </EditorItem>
                </FieldItems>
                <Buttons>
                    <Button ButtonType="ButtonType.Submit" Icon="fa fa-save" Text="提交" />
                </Buttons>
            </EditorForm>
        </ValidateForm>
    </GroupBox>
</Block>

<Block Title="默认不自动生成" Introduction="通过设置属性 <code>AutoGenerateAllItem</code> 值为 <code>false</code>，禁止自动生成属性，通过设置 <code>FieldItems</code> 内部集合来控制显示属性">
    <GroupBox Title="表单示例">
        <p>本例中通过设置 <code>AutoGenerateAllItem</code> 值为 <code>false</code>，关闭自动生成功能，通过手动增加两个 <code>EditorItem</code> 编辑项来呈现表单编辑</p>
        <EditorForm Model="@Model" AutoGenerateAllItem="false">
            <FieldItems>
                <EditorItem @bind-Field="@Model.Name" />
                <EditorItem @bind-Field="@Model.Count" />
            </FieldItems>
        </EditorForm>
    </GroupBox>
</Block>

<Block Title="表单组件内的组件绑定与模型无关的字段" Introduction="通过设置属性 <code>AutoGenerateAllItem</code> 值为 <code>false</code>，禁止自动生成属性，通过设置 <code>FieldItems</code> 内部集合来控制显示属性">
    <GroupBox Title="表单示例">
        <p>在某些情况下表单中有些列的值可能是二级分类等等，需要知道一级分类的信息，这个时候一级分类需要额外的组件来呈现，如果 <code>Select</code>，而这个组件是与当前上下文绑定模型 <code>Model</code> 无关的，这种需求中通过设置 <code>SkipValidate</code> 值为 <code>true</code>，关闭此组件的模型验证功能即可</p>
        <ValidateForm Model="@Model">
            <EditorForm Model="@Model" AutoGenerateAllItem="false">
                <FieldItems>
                    <EditorItem @bind-Field="@Model.Name" />
                    <EditorItem @bind-Field="@Model.Address" />
                    <EditorItem @bind-Field="@Model.Count">
                        <EditTemplate Context="value">
                            <div class="form-group col-6">
                                <Select TValue="int" SkipValidate="true" @bind-Value="@Model.Count" Items="@DummyItems" ShowSearch="true" />
                            </div>
                            <div class="form-group col-6">
                                <BootstrapInput Value="@Model.Count" readonly="true" />
                            </div>
                        </EditTemplate>
                    </EditorItem>
                    <EditorItem @bind-Field="@Model.Hobby">
                        <EditTemplate Context="value">
                            @{
                                var model = value as Foo;
                            }
                            <div class="form-group col-12">
                                <CheckboxList TValue="IEnumerable<string>" @bind-Value="@model!.Hobby" Items="@Hobbys" />
                            </div>
                        </EditTemplate>
                    </EditorItem>
                </FieldItems>
                <Buttons>
                    <Button ButtonType="ButtonType.Submit" Icon="fa fa-save" Text="提交" />
                </Buttons>
            </EditorForm>
        </ValidateForm>
    </GroupBox>
</Block>

<Block Title="设置每行显示控件数量" Introduction="通过设置 <code>ItemsPerRow</code> 属性值来控制布局">
    <p>本示例设置 <code>ItemsPerRow=3</code> 每行显示 3 个组件</p>
    <GroupBox Title="布局示例" style="margin-top: 1.5rem;">
        <ValidateForm Model="@Model">
            <EditorForm Model="@Model" ItemsPerRow="3">
                <FieldItems>
                    <EditorItem @bind-Field="@Model.Hobby" Data="@Hobbys" />
                </FieldItems>
                <Buttons>
                    <Button Icon="fa fa-save" Text="提交" />
                </Buttons>
            </EditorForm>
        </ValidateForm>
    </GroupBox>
</Block>

<AttributeTable Items="@GetAttributes()" />

<AttributeTable Title="EditorItem 属性" Items="@GetEditorItemAttributes()" />

// 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.Common;
using BootstrapBlazor.Shared.Pages.Components;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Localization;
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;

namespace BootstrapBlazor.Shared.Pages
{
    /// <summary>
    ///
    /// </summary>
    public sealed partial class EditorForms
    {
        [Inject]
        [NotNull]
        private IStringLocalizer<Foo>? Localizer { get; set; }

        private Foo Model { get; } = new Foo()
        {
            Name = "张三",
            Count = 23,
            Address = "测试地址",
            DateTime = new DateTime(1997, 12, 05),
            Education = EnumEducation.Middel
        };

        private Foo ValidateModel { get; } = new Foo()
        {
            Name = "张三",
            Count = 23,
            DateTime = new DateTime(1997, 12, 05),
            Education = EnumEducation.Middel
        };

        private IEnumerable<SelectedItem> Hobbys => Foo.GenerateHobbys(Localizer);

        private List<SelectedItem> DummyItems { get; } = new List<SelectedItem>()
        {
            new SelectedItem("1", "1"),
            new SelectedItem("2", "2"),
            new SelectedItem("3", "3"),
            new SelectedItem("4", "4"),
            new SelectedItem("5", "5")
        };

        private static IEnumerable<AttributeItem> GetAttributes() => new AttributeItem[]
        {
            // TODO: 移动到数据库中
            new AttributeItem() {
                Name = "Model",
                Description = "当前绑定数据模型",
                Type = "TModel",
                ValueList = " — ",
                DefaultValue = " — "
            },
            new AttributeItem() {
                Name = "FieldItems",
                Description = "绑定列模板",
                Type = "RenderFragment<TModel>",
                ValueList = " — ",
                DefaultValue = " — "
            },
            new AttributeItem() {
                Name = "Buttons",
                Description = "按钮模板",
                Type = "RenderFragment",
                ValueList = " — ",
                DefaultValue = " — "
            },
            new AttributeItem() {
                Name = "ShowLabel",
                Description = "是否显示 Label",
                Type = "bool",
                ValueList = "true/false",
                DefaultValue = "true"
            },
            new AttributeItem() {
                Name = "AutoGenerateAllItem",
                Description = "是否生成所有属性",
                Type = "bool",
                ValueList = "true/false",
                DefaultValue = "true"
            }
        };

        private static IEnumerable<AttributeItem> GetEditorItemAttributes() => new AttributeItem[]
        {
            // TODO: 移动到数据库中
            new AttributeItem() {
                Name = "Field",
                Description = "当前绑定数据值",
                Type = "TValue",
                ValueList = " — ",
                DefaultValue = " — "
            },
            new AttributeItem() {
                Name = "FieldType",
                Description = "绑定列数据类型",
                Type = "Type",
                ValueList = " — ",
                DefaultValue = " — "
            },
            new AttributeItem() {
                Name = "Editable",
                Description = "是否允许编辑",
                Type = "bool",
                ValueList = "true/false",
                DefaultValue = "true"
            },
            new AttributeItem() {
                Name = "Readonly",
                Description = "是否只读",
                Type = "bool",
                ValueList = "true/false",
                DefaultValue = "false"
            },
            new AttributeItem() {
                Name = "Text",
                Description = "编辑列前置标签名",
                Type = "string",
                ValueList = " — ",
                DefaultValue = " — "
            },
            new AttributeItem() {
                Name = "EditTemplate",
                Description = "列编辑模板",
                Type = "RenderFragment<object>",
                ValueList = " — ",
                DefaultValue = " — "
            }
        };
    }
}