import { App, TFile } from "obsidian";
import { McpServer, ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js";
export function registerFileResources(app: App, mcpServer: McpServer) {
// Resource 1: List all files in the vault
mcpServer.resource(
"Files List: Returns list of file resources.",
new ResourceTemplate("files://", {
list: () => {
try {
const files = app.vault.getFiles();
return {
resources: files.map((file: TFile) => ({
name: file.name,
uri: `file://${file.path}`,
mimeType: "text/plain",
})),
};
} catch (error) {
console.error("Error listing files:", error);
return { resources: [] };
}
},
}),
{
mimeType: "application/json",
description: "Lists all files in the Obsidian vault",
},
() => {
return { contents: [] }; // List-only resource, no content for direct access
},
);
// Resource 2: Read contents of a specific file
mcpServer.resource(
"File Contents: Reads the contents of a file given its path.",
new ResourceTemplate("file://{file-path}", { list: undefined }),
{
mimeType: "text/plain",
description: "Reads the contents of a file given its path",
},
async (uri: URL, variables) => {
try {
const filePath = variables["file-path"] as string;
if (!filePath) {
return {
contents: [
{
uri: uri.toString(),
text: JSON.stringify({ error: "No file path provided" }),
mimeType: "application/json",
},
],
isError: true,
};
}
const file = app.vault.getFiles().find((f: TFile) => f.path === filePath);
if (!file) {
return {
contents: [
{
uri: uri.toString(),
text: JSON.stringify({ error: `File not found: ${filePath}` }),
mimeType: "application/json",
},
],
isError: true,
};
}
const content = await app.vault.read(file);
return {
contents: [
{
uri: uri.toString(),
text: content,
mimeType: "text/plain",
},
],
};
} catch (error) {
console.error("Error reading file:", error);
return {
contents: [
{
uri: uri.toString(),
text: JSON.stringify({ error: `${error}` }),
mimeType: "application/json",
},
],
isError: true,
};
}
},
);
}
