/**
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { MessageData } from '@genkit-ai/ai/model';
import { gemini15Flash } from '@genkit-ai/vertexai';
import { z } from 'zod';
import { defineAgent, HistoryStore } from './agent.js';
import { ai } from './genkit.js';
const weatherTool = ai.defineTool(
{
name: 'weatherTool',
description: 'use this tool to display weather',
inputSchema: z.object({
date: z
.string()
.describe('date (use datePicker tool if user did not specify)'),
location: z.string().describe('location (ZIP, city, etc.)'),
}),
outputSchema: z.string().optional(),
},
async () => undefined
);
const datePicker = ai.defineTool(
{
name: 'datePicker',
description:
'user can use this UI tool to enter a date (prefer this over asking the user to enter the date manually)',
inputSchema: z.object({
ignore: z.string().describe('ignore this (set to undefined)').optional(),
}),
outputSchema: z.string().optional(),
},
async () => undefined
);
export const chatbotFlow = defineAgent(ai, {
name: 'chatbotFlow',
model: gemini15Flash,
tools: [weatherTool, datePicker],
returnToolRequests: true,
systemPrompt:
'You are a helpful agent. You have the personality of Agent Smith from Matrix. ' +
'There are tools/functions at your disposal, ' +
'feel free to call them. If you think a tool/function can help but you do ' +
'not have sufficient context make sure to ask clarifying questions.',
historyStore: inMemoryStore(),
});
const chatHistory: Record<string, MessageData[]> = {};
function inMemoryStore(): HistoryStore {
return {
async load(id: string): Promise<MessageData[] | undefined> {
return chatHistory[id];
},
async save(id: string, history: MessageData[]) {
chatHistory[id] = history;
},
};
}