import { db } from "../../mongodb/client.js";
import { BaseTool, ToolResponse } from "../base/tool.js";
import { getModelForCollection, hasSchemaForCollection } from "../../mongoose/manager.js";
type CountParams = {
collection: string;
filter?: Record<string, unknown>;
};
export class CountTool extends BaseTool<CountParams> {
name = "count";
description = "Count documents in a collection with optional filtering";
inputSchema = {
type: "object" as const,
properties: {
collection: {
type: "string",
description: "Collection name"
},
filter: {
type: "object",
description: "MongoDB filter query",
additionalProperties: true,
default: {}
}
},
required: ["collection"] as string[],
additionalProperties: false
};
async execute(params: CountParams): Promise<ToolResponse> {
try {
const collection = this.validateCollection(params.collection);
const filter = params.filter || {};
// Add isDeleted filter to exclude soft-deleted documents by default
const finalFilter = { ...filter, isDeleted: { $ne: true } };
let count;
// Check if we have a schema for this collection
if (hasSchemaForCollection(collection)) {
const model = getModelForCollection(collection);
console.error(`Using Mongoose model for collection: ${collection}`);
if (!model) {
throw new Error(`Model exists for collection ${collection} but could not be retrieved`);
}
// Use Mongoose model
count = await model.countDocuments(finalFilter);
} else {
console.error(`Using native MongoDB for collection: ${collection}`);
// Use native MongoDB driver
count = await db.collection(collection).countDocuments(finalFilter);
}
return {
content: [
{
type: "text",
text: JSON.stringify({ count }, null, 2),
},
],
isError: false,
};
} catch (error) {
return this.handleError(error);
}
}
}
