import { getFirestoreInstance } from "../firestore.js";
import { doc, getDoc } from "firebase/firestore";
import { z } from "zod";
// Define schemas as z.object for type inference
const inputSchemaObject = z.object({
path: z.string().describe("The path to the Firestore document (e.g., 'users/userId')")
});
const outputSchemaObject = z.object({
exists: z.boolean(),
data: z.any().optional()
});
// Export raw shapes for MCP SDK
export const inputSchema = inputSchemaObject.shape;
export const outputSchema = outputSchemaObject.shape;
// Infer types from schemas
type GetDocumentInput = z.infer<typeof inputSchemaObject>;
type GetDocumentOutput = z.infer<typeof outputSchemaObject>;
export const getDocument = async ({ path }: GetDocumentInput) => {
const db = await getFirestoreInstance();
const docRef = doc(db, path);
const snapshot = await getDoc(docRef);
const structuredContent: GetDocumentOutput = {
exists: snapshot.exists(),
data: snapshot.exists() ? snapshot.data() : undefined
};
return {
content: [
{
type: 'text' as const,
text: JSON.stringify(structuredContent, null, 2)
}
],
structuredContent
};
};
