Create Label and CondtionalLabel components

Author: leotsarev

Joinrpg.sln

@@ -103,6 +103,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "JoinRpg.PrimitiveTypes", "s
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "JoinRpg.BlobStorage", "src\JoinRpg.BlobStorage\JoinRpg.BlobStorage.csproj", "{9F846CF9-3FB8-4164-9BEA-08DE68B239AD}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "JoinRpg.WebComponents", "src\JoinRpg.WebComponents\JoinRpg.WebComponents.csproj", "{80AF606D-0576-480E-8D2E-AE736C2EE73C}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -261,6 +263,10 @@ Global
 		{9F846CF9-3FB8-4164-9BEA-08DE68B239AD}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9F846CF9-3FB8-4164-9BEA-08DE68B239AD}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9F846CF9-3FB8-4164-9BEA-08DE68B239AD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{80AF606D-0576-480E-8D2E-AE736C2EE73C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{80AF606D-0576-480E-8D2E-AE736C2EE73C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{80AF606D-0576-480E-8D2E-AE736C2EE73C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{80AF606D-0576-480E-8D2E-AE736C2EE73C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -295,6 +301,7 @@ Global
 		{17FBA40C-1B31-4575-A4EC-27D40F65D63A} = {8BB208B6-13CD-4942-B3AC-037BDF858727}
 		{AC09C4CB-0D6C-4301-A4BF-8129A9881BE5} = {B8A1A61E-CD98-49F5-98BA-30B0869576B1}
 		{3623C97E-251A-4233-A359-18F76F9598C8} = {7645AC35-A68C-40EF-8AAD-1BF62D822E4C}
+		{80AF606D-0576-480E-8D2E-AE736C2EE73C} = {B3BB8906-62C8-44A0-822C-566A144C05AE}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {1A5E4F92-A0F4-4350-92C7-361C88D58588}

src/JoinRpg.WebComponents/ConditionalLabel.razor

@@ -0,0 +1,11 @@
+@using System.Linq.Expressions;
+@if (For.Compile()())
+{
+  <Label For="@For" @attributes="@InputAttributes">@ChildContent</Label>
+}
+@code {
+    [Parameter] public Expression<Func<bool>> For { get; set; }
+    [Parameter] public RenderFragment? ChildContent { get; set; }
+    [Parameter(CaptureUnmatchedValues = true)]
+    public Dictionary<string, object> InputAttributes { get; set; }
+}

src/JoinRpg.WebComponents/JoinRpg.WebComponents.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk.Razor">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+  </PropertyGroup>
+
+  
+  <ItemGroup>
+    <SupportedPlatform Include="browser" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="5.0.5" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\JoinRpg.Helpers\JoinRpg.Helpers.csproj" />
+  </ItemGroup>
+
+</Project>

src/JoinRpg.WebComponents/Label.razor

@@ -0,0 +1,45 @@
+@using System.Linq.Expressions;
+@using JoinRpg.Helpers
+@typeparam T
+@if (ChildContent == null)
+{
+  <label @attributes="@InputAttributes" class="@labelStyle">@label</label>
+}
+else
+{
+  <label @attributes="@InputAttributes" class="@labelStyle">
+    @label
+    @ChildContent
+  </label>
+}
+@code {
+    [Parameter] public Expression<Func<T>> For { get; set; }
+    [Parameter] public RenderFragment? ChildContent { get; set; }
+    [Parameter] public VariationStyleEnum? Variation { get; set; }
+
+    [Parameter(CaptureUnmatchedValues = true)]
+    public Dictionary<string, object> InputAttributes { get; set; }
+
+    private string label {
+      get {
+        var property = For.AsPropertyAccess();
+        if (property is null)
+        {
+          throw new ArgumentException("Expression should be property access", nameof(For));
+        }
+        return property.GetDisplayName();
+      }
+    }
+
+    private string labelStyle
+    {
+      get
+      {
+        return Variation switch
+        {
+          VariationStyleEnum.Success => "label label-success",
+          _ => "label",
+        };
+      }
+    }
+}

src/JoinRpg.WebComponents/VariationStyleEnum.cs

@@ -0,0 +1,8 @@
+namespace JoinRpg.WebComponents
+{
+    public enum VariationStyleEnum
+    {
+        None,
+        Success,
+    }
+}