/*
┌──────────────────────────────────────────────────────────────────┐
│ Author: Ivan Murzak (https://github.com/IvanMurzak) │
│ Repository: GitHub (https://github.com/IvanMurzak/Unity-MCP) │
│ Copyright (c) 2025 Ivan Murzak │
│ Licensed under the Apache License, Version 2.0. │
│ See the LICENSE file in the project root for more information. │
└──────────────────────────────────────────────────────────────────┘
*/
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using com.IvanMurzak.Unity.MCP.Common.Model;
using ModelContextProtocol.Protocol;
using ModelContextProtocol.Server;
namespace com.IvanMurzak.Unity.MCP.Server
{
public static partial class ResourceRouter
{
public static async ValueTask<ReadResourceResult> Read(
RequestContext<ReadResourceRequestParams> request,
CancellationToken cancellationToken
)
{
if (request?.Params?.Uri == null)
return new ReadResourceResult().SetError("null", "[Error] Request or Uri is null");
var mcpServerService = McpServerService.Instance;
if (mcpServerService == null)
return new ReadResourceResult().SetError(request.Params.Uri, "[Error] 'McpServerService' is null");
var resourceRunner = mcpServerService.ResourceRunner;
if (resourceRunner == null)
return new ReadResourceResult().SetError(request.Params.Uri, $"[Error] '{nameof(resourceRunner)}' is null");
var requestData = new RequestResourceContent(request.Params.Uri);
var response = await resourceRunner.RunResourceContent(requestData, cancellationToken: cancellationToken);
if (response == null)
return new ReadResourceResult().SetError(request.Params.Uri, "[Error] Resource is null");
if (response.Status == ResponseStatus.Error)
return new ReadResourceResult().SetError(request.Params.Uri, response.Message ?? "[Error] Got an error during reading resources");
if (response.Value == null)
return new ReadResourceResult().SetError(request.Params.Uri, "[Error] Resource value is null");
return new ReadResourceResult()
{
Contents = response.Value
.Where(x => x != null)
.Where(x => x!.text != null || x!.blob != null)
.Select(x => x!.ToResourceContents())
.ToList()
};
}
}
}
