// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;
using System.Text;
using Microsoft.CodeAnalysis.Text;

namespace Microsoft.CodeAnalysis.TestSourceGenerator;

[Generator]
#pragma warning disable RS1042 // Do not implement
public sealed class HelloWorldGenerator : ISourceGenerator
#pragma warning restore RS1042 // Do not implement
{
    public const string GeneratedEnglishClassName = "HelloWorld";
    public const string GeneratedSpanishClassName = "HolaMundo";
    public const string GeneratedFolderName = "Folder";
    public const string GeneratedFolderClassName = "HelloFolder";

    public void Initialize(GeneratorInitializationContext context)
    {
    }

    public void Execute(GeneratorExecutionContext context)
    {
        context.AddSource(GeneratedEnglishClassName, SourceText.From($$"""
            /// <summary><see cref="{{GeneratedEnglishClassName}}" /> is a simple class to fetch the classic message.</summary>
            internal class {{GeneratedEnglishClassName}}
            {
                public static string GetMessage()
                {
                    return "Hello, World!";
                }
            }
            """, encoding: Encoding.UTF8));

        context.AddSource(GeneratedSpanishClassName, SourceText.From($$"""
            internal class {{GeneratedSpanishClassName}}
            {
                public static string GetMessage()
                {
                    return "Hola, Mundo!";
                }
            }
            """, encoding: Encoding.UTF8));

        context.AddSource(GeneratedEnglishClassName + "WithTime", SourceText.From($$"""
            /// <summary><see cref="{{GeneratedEnglishClassName}}WithTime" /> is a simple class to fetch the classic message.</summary>
            internal class {{GeneratedEnglishClassName}}WithTime
            {
                public static string GetMessage()
                {
                    return "Hello, World @ {{DateTime.UtcNow.ToLocalTime().ToLongTimeString()}}";
                }
            }
            """, encoding: Encoding.UTF8));

        context.AddSource($"{GeneratedFolderName}/{GeneratedFolderClassName}", $$"""
            class {{GeneratedFolderClassName}} { }
            """);
    }
}