Add food recommendation features

This commit is contained in:
Tanuja Pansare 2026-06-10 10:38:26 +05:30
parent 2a5629c2ae
commit 8fdbe2bf89
17 changed files with 899 additions and 24 deletions

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@ -36,8 +36,8 @@ AWS_URL=https://did94hhhcgq1d.cloudfront.net
# Amazon Bedrock (AI event generation). Model must be enabled in your AWS account for this region. # Amazon Bedrock (AI event generation). Model must be enabled in your AWS account for this region.
# BEDROCK_MODEL_ID=anthropic.claude-3-haiku-20240307-v1:0 # BEDROCK_MODEL_ID=anthropic.claude-3-haiku-20240307-v1:0
# Public API base URL injected into published microsite HTML for contact forms (e.g. https://api.example.com/api or http://localhost:3001/api) # Public API base URL injected into published microsite HTML for contact forms (e.g. https://api.example.com/api or http://localhost:3002/api)
MICROSITE_API_BASE_URL=http://localhost:3001/api MICROSITE_API_BASE_URL=http://localhost:3002/api
# Firebase Realtime Database (optional — quiz/poll sync). Paths relative to backend/ when starting the API from backend/ # Firebase Realtime Database (optional — quiz/poll sync). Paths relative to backend/ when starting the API from backend/
FIREBASE_DATABASE_URL=https://eventbuzz-live-default-rtdb.firebaseio.com FIREBASE_DATABASE_URL=https://eventbuzz-live-default-rtdb.firebaseio.com

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@ -27,7 +27,7 @@ Node.js backend for EventBuzz built with **Hapi.js** and **MongoDB** (Mongoose),
```bash ```bash
npm run dev npm run dev
``` ```
Server runs at `http://localhost:3001` (or `PORT` from `.env`). Server runs at `http://localhost:3002` (or `PORT` from `.env`).
4. **Multi-tenant backfill (after pulling schema that requires org on forms/speakers)** 4. **Multi-tenant backfill (after pulling schema that requires org on forms/speakers)**
Run once against your database before restart if you have legacy rows: Run once against your database before restart if you have legacy rows:

2
package-lock.json generated
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@ -17,7 +17,7 @@
"bcrypt": "^5.1.1", "bcrypt": "^5.1.1",
"bullmq": "^5.34.5", "bullmq": "^5.34.5",
"cheerio": "^1.0.0", "cheerio": "^1.0.0",
"dotenv": "^16.3.1", "dotenv": "^16.6.1",
"firebase-admin": "^13.0.0", "firebase-admin": "^13.0.0",
"google-auth-library": "^9.14.0", "google-auth-library": "^9.14.0",
"hapi-auth-jwt2": "^10.2.0", "hapi-auth-jwt2": "^10.2.0",

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@ -18,30 +18,30 @@
"badge-batch-worker": "node src/workers/badgeBatchWorker.js" "badge-batch-worker": "node src/workers/badgeBatchWorker.js"
}, },
"dependencies": { "dependencies": {
"@napi-rs/canvas": "^0.1.56",
"archiver": "^7.0.1",
"@aws-sdk/client-bedrock-runtime": "^3.1030.0", "@aws-sdk/client-bedrock-runtime": "^3.1030.0",
"@aws-sdk/client-s3": "^3.1012.0", "@aws-sdk/client-s3": "^3.1012.0",
"@aws-sdk/lib-storage": "^3.1012.0", "@aws-sdk/lib-storage": "^3.1012.0",
"@hapi/hapi": "^21.3.0", "@hapi/hapi": "^21.3.0",
"@napi-rs/canvas": "^0.1.56",
"archiver": "^7.0.1",
"bcrypt": "^5.1.1", "bcrypt": "^5.1.1",
"bullmq": "^5.34.5", "bullmq": "^5.34.5",
"cheerio": "^1.0.0", "cheerio": "^1.0.0",
"ioredis": "^5.4.2", "dotenv": "^16.6.1",
"mathjs": "^14.0.1",
"pdf-parse": "^1.1.1",
"dotenv": "^16.3.1",
"firebase-admin": "^13.0.0", "firebase-admin": "^13.0.0",
"google-auth-library": "^9.14.0", "google-auth-library": "^9.14.0",
"hapi-auth-jwt2": "^10.2.0", "hapi-auth-jwt2": "^10.2.0",
"ioredis": "^5.4.2",
"joi": "^17.13.0", "joi": "^17.13.0",
"jsonwebtoken": "^9.0.2", "jsonwebtoken": "^9.0.2",
"mathjs": "^14.0.1",
"mongoose": "^8.0.0", "mongoose": "^8.0.0",
"pdf-lib": "^1.17.1",
"node-cron": "^3.0.3", "node-cron": "^3.0.3",
"nodemailer": "^6.9.7", "nodemailer": "^6.9.7",
"officeparser": "^5.1.1", "officeparser": "^5.1.1",
"otplib": "^12.0.1", "otplib": "^12.0.1",
"pdf-lib": "^1.17.1",
"pdf-parse": "^1.1.1",
"qrcode": "^1.5.4", "qrcode": "^1.5.4",
"razorpay": "^2.9.6", "razorpay": "^2.9.6",
"sharp": "^0.33.5", "sharp": "^0.33.5",

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@ -0,0 +1,18 @@
require('dotenv').config();
const mongoose = require('mongoose');
async function main() {
const mongoUrl = process.env.MONGODB_URI || process.env.MONGO_URL || process.env.MONGO_URI || 'mongodb://localhost:27017/eventbuzz';
await mongoose.connect(mongoUrl, { useNewUrlParser: true, useUnifiedTopology: true });
console.log('Connected to', mongoUrl);
const KnowledgeSource = require('../src/models/KnowledgeSource');
const docs = await KnowledgeSource.find({ type: 'food' }).lean();
console.log('Found', docs.length, 'food sources');
console.log(JSON.stringify(docs, null, 2));
await mongoose.disconnect();
}
main().catch((err) => {
console.error('Error', err);
process.exit(1);
});

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@ -0,0 +1,39 @@
require('dotenv').config();
const mongoose = require('mongoose');
async function main() {
const mongoUrl = process.env.MONGODB_URI || process.env.MONGO_URL || process.env.MONGO_URI || 'mongodb://localhost:27017/eventbuzz';
await mongoose.connect(mongoUrl, { useNewUrlParser: true, useUnifiedTopology: true });
console.log('Connected to', mongoUrl);
const ConciergeBot = require('../src/models/ConciergeBot');
const KnowledgeSource = require('../src/models/KnowledgeSource');
const bots = await ConciergeBot.find({}).lean();
console.log('Found', bots.length, 'chatbots');
for (const b of bots) {
const eventId = b.event && b.event._id ? b.event._id : b.event;
if (!eventId) continue;
const existing = await KnowledgeSource.findOne({ eventId, type: 'food' }).lean();
if (existing) {
console.log('Bot', b._id, 'already has food source', existing._id);
continue;
}
const doc = {
eventId,
type: 'food',
sourcePath: String(eventId),
displayName: 'Food Recommendations',
status: 'PENDING',
};
const created = await KnowledgeSource.create(doc);
console.log('Created food source for bot', b._id, 'sourceId', created._id);
}
await mongoose.disconnect();
}
main().catch((err) => {
console.error('Error', err);
process.exit(1);
});

20
scripts/list-sources.js Normal file
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@ -0,0 +1,20 @@
require('dotenv').config();
const mongoose = require('mongoose');
async function main() {
const mongoUrl = process.env.MONGODB_URI || process.env.MONGO_URL || process.env.MONGO_URI || 'mongodb://localhost:27017/eventbuzz';
await mongoose.connect(mongoUrl, { useNewUrlParser: true, useUnifiedTopology: true });
console.log('Connected to', mongoUrl);
const KnowledgeSource = require('../src/models/KnowledgeSource');
const docs = await KnowledgeSource.find({}).sort({ eventId: 1, type: 1 }).lean();
console.log('Total sources:', docs.length);
for (const d of docs) {
console.log(JSON.stringify({ _id: String(d._id), eventId: String(d.eventId), type: d.type, displayName: d.displayName, status: d.status }, null, 2));
}
await mongoose.disconnect();
}
main().catch((err) => {
console.error('Error', err);
process.exit(1);
});

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@ -0,0 +1,17 @@
require('dotenv').config();
(async () => {
const id = process.argv[2];
if (!id) {
console.error('Usage: node run-ingest-single.js <sourceId>');
process.exit(2);
}
try {
const { runConciergeIngest } = require('../src/utils/conciergeIngest');
console.log('Running ingest for', id);
const res = await runConciergeIngest(id);
console.log('Ingest result:', res);
} catch (e) {
console.error('Ingest error:', e);
process.exit(1);
}
})();

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@ -0,0 +1,42 @@
require('dotenv').config();
const { MongoClient } = require('mongodb');
(async () => {
try {
const MONGO_URL = process.env.MONGODB_URI || 'mongodb://realworldmodb:pjTzlem85s@64.227.152.139:27017/reallives_serverless_eb?authSource=admin';
const client = new MongoClient(MONGO_URL, { useNewUrlParser: true, useUnifiedTopology: true });
await client.connect();
const db = client.db('reallives_serverless_eb');
const coll = db.collection('Food');
const doc = await coll.findOne({ eventId: '69ce3c91be56b4a3b09b2333' });
if (!doc) {
console.log('No food document found');
await client.close();
process.exit(0);
}
console.log('Document ID:', doc._id);
console.log('Event ID:', doc.eventId);
console.log('Location:', doc.location);
console.log('Number of places:', doc.places?.length || 0);
console.log('\nRecommendations:\n', doc.recommendations || 'None');
console.log('');
console.log('Full document JSON:\n', JSON.stringify(doc, null, 2));
console.log('\nPlaces sample (first 5):');
(doc.places || []).slice(0, 5).forEach((p, i) => {
console.log(` ${i+1}. ${p.name}`);
console.log(` Address: ${p.address}`);
console.log(` Rating: ${p.rating}/5 (${p.user_ratings_total} reviews)`);
console.log(` Cuisines: ${p.cuisines?.join(', ')}`);
console.log(` Distance: ${(p.distance_meters / 1000).toFixed(2)} km`);
console.log('');
});
await client.close();
} catch (e) {
console.error('Error:', e.message);
process.exit(1);
}
})();

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@ -288,6 +288,7 @@ const deleteSource = async (request, h) => {
}; };
const syncSource = async (request, h) => { const syncSource = async (request, h) => {
console.log('[concierge] syncSource called', { params: request.params, payload: request.payload });
const { bot, err } = await getBotForUser(request.params.botId, request.auth.credentials.user); const { bot, err } = await getBotForUser(request.params.botId, request.auth.credentials.user);
if (err) return h.response(error(err.code, err.message)).code(err.status); if (err) return h.response(error(err.code, err.message)).code(err.status);
const eventId = bot.event._id || bot.event; const eventId = bot.event._id || bot.event;
@ -295,6 +296,7 @@ const syncSource = async (request, h) => {
_id: request.params.sourceId, _id: request.params.sourceId,
eventId, eventId,
}); });
console.log('[concierge] syncSource resolved source', source && { _id: source._id, type: source.type, displayName: source.displayName });
if (!source) return h.response(error('NOT_FOUND', 'Source not found')).code(404); if (!source) return h.response(error('NOT_FOUND', 'Source not found')).code(404);
source.status = 'PENDING'; source.status = 'PENDING';
source.errorMessage = null; source.errorMessage = null;
@ -305,7 +307,16 @@ const syncSource = async (request, h) => {
eventId: String(eventId), eventId: String(eventId),
type: source.type, type: source.type,
}); });
try {
const { runConciergeIngest } = require('../utils/conciergeIngest');
await runConciergeIngest(String(source._id));
const refreshed = await KnowledgeSource.findById(source._id).lean();
return h.response(success(refreshed, 'Sync completed'));
} catch (e) {
console.warn('[concierge] syncSource immediate ingest failed:', e.message || e);
return h.response(success(source, 'Sync queued')); return h.response(success(source, 'Sync queued'));
}
}; };
const listChunks = async (request, h) => { const listChunks = async (request, h) => {
@ -378,6 +389,7 @@ const clearKnowledge = async (request, h) => {
}; };
const syncEventKnowledge = async (request, h) => { const syncEventKnowledge = async (request, h) => {
console.log('[concierge] syncEventKnowledge called', { params: request.params });
const { bot, err } = await getBotForUser(request.params.botId, request.auth.credentials.user); const { bot, err } = await getBotForUser(request.params.botId, request.auth.credentials.user);
if (err) return h.response(error(err.code, err.message)).code(err.status); if (err) return h.response(error(err.code, err.message)).code(err.status);
if (bot.knowledge?.includeEventDetails === false) { if (bot.knowledge?.includeEventDetails === false) {
@ -392,31 +404,102 @@ const syncEventKnowledge = async (request, h) => {
} }
const eventId = bot.event._id || bot.event; const eventId = bot.event._id || bot.event;
const programmeDisplayName = 'Event programme & links'; const programmeDisplayName = 'Event programme & links';
let source = await KnowledgeSource.findOne({ eventId, type: 'event' });
async function ensureSource(type, displayName) {
let source = await KnowledgeSource.findOne({ eventId, type });
if (!source) { if (!source) {
source = await KnowledgeSource.create({ source = await KnowledgeSource.create({
eventId, eventId,
type: 'event', type,
sourcePath: String(eventId), sourcePath: String(eventId),
displayName: programmeDisplayName, displayName,
status: 'PENDING', status: 'PENDING',
}); });
} else { } else {
source.status = 'PENDING'; source.status = 'PENDING';
source.errorMessage = null; source.errorMessage = null;
source.displayName = programmeDisplayName; source.displayName = displayName;
await source.save(); await source.save();
} }
bot.knowledge = bot.knowledge || {};
bot.knowledge.lastEventSnapshotAt = new Date();
await bot.save();
await enqueueConciergeIngest({ await enqueueConciergeIngest({
sourceId: String(source._id), sourceId: String(source._id),
botId: String(bot._id), botId: String(bot._id),
eventId: String(eventId), eventId: String(eventId),
type: 'event', type,
}); });
return h.response(success(source, 'Event programme sync queued')); return source;
}
const eventSource = await ensureSource('event', programmeDisplayName);
bot.knowledge = bot.knowledge || {};
bot.knowledge.lastEventSnapshotAt = new Date();
if (bot.knowledge?.includeFoodRecommendations !== false) {
await ensureSource('food', 'Food Recommendations');
bot.knowledge.lastFoodSnapshotAt = new Date();
}
await bot.save();
return h.response(success(eventSource, 'Event programme sync queued'));
};
const syncFoodKnowledge = async (request, h) => {
console.log('[concierge] syncFoodKnowledge called', { params: request.params });
const { bot, err } = await getBotForUser(
request.params.botId,
request.auth.credentials.user
);
if (err) {
return h.response(error(err.code, err.message)).code(err.status);
}
if (bot.knowledge?.includeFoodRecommendations === false) {
return h.response(
error('VALIDATION_ERROR', 'Food recommendations are disabled'),
).code(400);
}
const eventId = bot.event._id || bot.event;
let source = await KnowledgeSource.findOne({
eventId,
type: 'food',
});
if (!source) {
source = await KnowledgeSource.create({
eventId,
type: 'food',
sourcePath: String(eventId),
displayName: 'Food Recommendations',
status: 'PENDING',
});
} else {
source.status = 'PENDING';
source.errorMessage = null;
source.displayName = 'Food Recommendations';
await source.save();
}
console.log('[concierge] syncFoodKnowledge resolved source', { _id: source._id, type: source.type, displayName: source.displayName });
await enqueueConciergeIngest({
sourceId: String(source._id),
botId: String(bot._id),
eventId: String(eventId),
type: 'food',
});
// Also attempt immediate ingestion for food so the UI doesn't stay PENDING
try {
const { runConciergeIngest } = require('../utils/conciergeIngest');
await runConciergeIngest(String(source._id));
const refreshed = await KnowledgeSource.findById(source._id).lean();
return h.response(success(refreshed, 'Food sync completed'));
} catch (e) {
// Ingest failed or worker not running; return queued response
return h.response(success(source, 'Food sync queued'));
}
}; };
module.exports = { module.exports = {
@ -436,4 +519,5 @@ module.exports = {
approveSource, approveSource,
clearKnowledge, clearKnowledge,
syncEventKnowledge, syncEventKnowledge,
syncFoodKnowledge,
}; };

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@ -97,9 +97,11 @@ const chat = async (request, h) => {
const historyForPrompt = session.history.slice(-12).map((m) => ({ role: m.role, text: m.text })); const historyForPrompt = session.history.slice(-12).map((m) => ({ role: m.role, text: m.text }));
const includeEventDetails = bot.knowledge?.includeEventDetails !== false; const includeEventDetails = bot.knowledge?.includeEventDetails !== false;
const includeFoodRecommendations = bot.knowledge?.includeFoodRecommendations !== false;
const ragResult = await executeConciergeRag(String(bot.event), msg, event?.name || 'Event', { const ragResult = await executeConciergeRag(String(bot.event), msg, event?.name || 'Event', {
includeEventDetails, includeEventDetails,
includeFoodRecommendations,
history: historyForPrompt, history: historyForPrompt,
}); });
const answerText = const answerText =

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@ -35,6 +35,7 @@ const conciergeBotSchema = new mongoose.Schema(
}, },
knowledge: { knowledge: {
includeEventDetails: { type: Boolean, default: true }, includeEventDetails: { type: Boolean, default: true },
includeFoodRecommendations: { type: Boolean, default: true},
lastEventSnapshotAt: Date, lastEventSnapshotAt: Date,
}, },
lastKnowledgeClearedAt: Date, lastKnowledgeClearedAt: Date,

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@ -10,7 +10,7 @@ const knowledgeSourceSchema = new mongoose.Schema(
}, },
type: { type: {
type: String, type: String,
enum: ['url', 'pdf', 'event'], enum: ['url', 'pdf', 'event','food'],
required: true, required: true,
}, },
sourcePath: { type: String, required: true }, sourcePath: { type: String, required: true },

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@ -13,6 +13,7 @@ const registrationSchema = Joi.object({
const knowledgeSchema = Joi.object({ const knowledgeSchema = Joi.object({
includeEventDetails: Joi.boolean(), includeEventDetails: Joi.boolean(),
includeFoodRecommendations: Joi.boolean(),
}); });
const createPayload = Joi.object({ const createPayload = Joi.object({
@ -65,4 +66,5 @@ module.exports = [
{ method: 'POST', path: '/api/concierge-bots/{botId}/sources/{sourceId}/approve', options: { handler: controller.approveSource } }, { method: 'POST', path: '/api/concierge-bots/{botId}/sources/{sourceId}/approve', options: { handler: controller.approveSource } },
{ method: 'POST', path: '/api/concierge-bots/{botId}/knowledge/clear', options: { handler: controller.clearKnowledge } }, { method: 'POST', path: '/api/concierge-bots/{botId}/knowledge/clear', options: { handler: controller.clearKnowledge } },
{ method: 'POST', path: '/api/concierge-bots/{botId}/knowledge/sync-event', options: { handler: controller.syncEventKnowledge } }, { method: 'POST', path: '/api/concierge-bots/{botId}/knowledge/sync-event', options: { handler: controller.syncEventKnowledge } },
{ method: "POST", path: "/api/concierge-bots/{botId}/knowledge/food-sync", options: { handler: controller.syncFoodKnowledge} }
]; ];

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@ -54,10 +54,11 @@ function extractUsage(response) {
* @param {string} eventId * @param {string} eventId
* @param {string} userQuery * @param {string} userQuery
* @param {string} eventName * @param {string} eventName
* @param {{ includeEventDetails?: boolean, history?: { role: 'user'|'assistant', text: string }[] }} [options] * @param {{ includeEventDetails?: boolean, includeFoodRecommendations?: boolean, history?: { role: 'user'|'assistant', text: string }[] }} [options]
*/ */
async function executeConciergeRag(eventId, userQuery, eventName, options = {}) { async function executeConciergeRag(eventId, userQuery, eventName, options = {}) {
const includeEventDetails = options.includeEventDetails !== false; const includeEventDetails = options.includeEventDetails !== false;
const includeFoodRecommendations = options.includeFoodRecommendations !== false;
const history = Array.isArray(options.history) ? options.history : []; const history = Array.isArray(options.history) ? options.history : [];
const { embeddings, modelId: embedModelId } = await embedTexts([userQuery]); const { embeddings, modelId: embedModelId } = await embedTexts([userQuery]);
@ -74,9 +75,17 @@ async function executeConciergeRag(eventId, userQuery, eventName, options = {})
], ],
}; };
const excludedSourceIds = [];
if (!includeEventDetails) { if (!includeEventDetails) {
const eventSource = await KnowledgeSource.findOne({ eventId, type: 'event' }).select('_id').lean(); const eventSource = await KnowledgeSource.findOne({ eventId, type: 'event' }).select('_id').lean();
if (eventSource) chunkFilter.sourceId = { $ne: eventSource._id }; if (eventSource) excludedSourceIds.push(eventSource._id);
}
if (!includeFoodRecommendations) {
const foodSource = await KnowledgeSource.findOne({ eventId, type: 'food' }).select('_id').lean();
if (foodSource) excludedSourceIds.push(foodSource._id);
}
if (excludedSourceIds.length) {
chunkFilter.sourceId = { $nin: excludedSourceIds };
} }
const activeChunks = await ContextChunk.find(chunkFilter).lean(); const activeChunks = await ContextChunk.find(chunkFilter).lean();

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@ -0,0 +1,614 @@
const axios = require("axios");
const readline = require("readline");
const { spawn } = require("child_process");
const { MongoClient } = require('mongodb');
const API_KEY_ENV = 'GOOGLE_PLACES_API_KEY';
const GOOGLE_PLACES_API_KEY = process.env[API_KEY_ENV];
const OLLAMA_MODEL_ENV = "OLLAMA_MODEL";
const DEFAULT_OLLAMA_MODEL = "phi3";
const BASE_GEOCODE_URL =
"https://maps.googleapis.com/maps/api/geocode/json";
const BASE_PLACES_URL =
"https://maps.googleapis.com/maps/api/place/textsearch/json";
const BASE_DETAILS_URL =
"https://maps.googleapis.com/maps/api/place/details/json";
const DEFAULT_RADIUS_METERS = 2000;
const DEFAULT_RESULT_COUNT = 20;
const SEARCH_QUERY_TEMPLATES = [
"best local food in {location}",
"traditional food in {location}",
"street food in {location}",
"top restaurants in {location}",
"famous dishes in {location}",
"best cafes in {location}",
"local cuisine near {location}",
];
const CUISINE_TYPES = new Set([
"afghani","african","american","asian","asian_fusion","bbq","bakery","bar",
"belgian","brazilian","breakfast_brunch","british","bubble_tea","bulgarian",
"burgers","cafes","cambodian","caribbean","chinese","comfort_food",
"creperies","cuban","czech","danish","delis","diners","ethiopian",
"european","filipino","fish_and_chips","fondue","food_court","food_stands",
"french","gastropubs","german","greek","hawaiian","himalayan","hot_dogs",
"hot_pot","hungarian","indian","indonesian","irish","island_pub","italian",
"japanese","juice_bars","kebab","korean","kosher","laotian",
"latin_american","lebanese","malaysian","mediterranean","mexican",
"middle_eastern","modern_european","mongolian","moroccan","new_american",
"new_zealand","nicaraguan","northern_indian","pakistani","pasta_shops",
"peruvian","pizza","polish","portuguese","russian","salad","sandwiches",
"scandinavian","seafood","singaporean","slovak","somali","southern",
"spanish","sri_lankan","steakhouse","sushi","syrian","taiwanese",
"tapasmallplates","tex-mex","thai","tibetan","turkish","ukrainian",
"vietnamese","waffles"
]);
function getApiKey() {
const apiKey = process.env[API_KEY_ENV];
if (!apiKey) {
console.error(
`Error: environment variable ${API_KEY_ENV} is not set.`
);
process.exit(1);
}
return apiKey;
}
async function fetchJson(url, params) {
const response = await axios.get(url, {
params,
timeout: 30000,
});
return response.data;
}
async function geocodeAddress(address, apiKey) {
const result = await fetchJson(BASE_GEOCODE_URL, {
address,
key: apiKey,
});
if (
result.status !== "OK" ||
!result.results ||
!result.results.length
) {
throw new Error(
`Geocoding failed: ${result.status}`
);
}
const location = result.results[0].geometry.location;
return {
formattedAddress:
result.results[0].formatted_address || address,
lat: Number(location.lat),
lng: Number(location.lng),
};
}
function haversineDistance(lat1, lng1, lat2, lng2) {
const R = 6371000;
const toRad = (deg) => deg * Math.PI / 180;
const dLat = toRad(lat2 - lat1);
const dLng = toRad(lng2 - lng1);
const a =
Math.sin(dLat / 2) ** 2 +
Math.cos(toRad(lat1)) *
Math.cos(toRad(lat2)) *
Math.sin(dLng / 2) ** 2;
const c = 2 * Math.atan2(
Math.sqrt(a),
Math.sqrt(1 - a)
);
return R * c;
}
function formatDistance(meters) {
if (meters >= 1000) {
return `${(meters / 1000).toFixed(1)} km`;
}
return `${Math.round(meters)} m`;
}
function parseCuisine(types = []) {
const cuisines = types
.filter((t) => CUISINE_TYPES.has(t))
.map((t) =>
t.replace(/_/g, " ")
.replace(/\b\w/g, (c) => c.toUpperCase())
);
return cuisines.length ? cuisines : ["N/A"];
}
async function getPlaceDetails(placeId, apiKey) {
const result = await fetchJson(BASE_DETAILS_URL, {
place_id: placeId,
key: apiKey,
fields: [
"formatted_phone_number",
"international_phone_number",
"price_level",
"reviews",
"types",
"opening_hours",
"geometry",
].join(","),
});
if (
result.status !== "OK" ||
!result.result
) {
throw new Error(
`Place details failed: ${result.status}`
);
}
return result.result;
}
async function searchFoodPlaces(
originLat,
originLng,
apiKey,
locationName = "",
radius = DEFAULT_RADIUS_METERS,
limit = DEFAULT_RESULT_COUNT
) {
const seen = new Set();
const places = [];
for (const template of SEARCH_QUERY_TEMPLATES) {
if (places.length >= limit) break;
const queryText = template.replace(
"{location}",
locationName
);
let result;
try {
result = await fetchJson(BASE_PLACES_URL, {
query: queryText,
location: `${originLat},${originLng}`,
radius,
key: apiKey,
});
} catch {
continue;
}
if (
result.status !== "OK" &&
result.status !== "ZERO_RESULTS"
) {
continue;
}
for (const place of result.results || []) {
if (places.length >= limit) break;
const placeId = place.place_id;
if (!placeId || seen.has(placeId)) {
continue;
}
seen.add(placeId);
let details = {};
try {
details = await getPlaceDetails(
placeId,
apiKey
);
} catch {}
const lat =
Number(place.geometry?.location?.lat || 0);
const lng =
Number(place.geometry?.location?.lng || 0);
const types =
details.types || place.types || [];
places.push({
name: place.name,
address: place.formatted_address,
rating: place.rating,
user_ratings_total:
place.user_ratings_total,
types,
place_id: placeId,
business_status:
place.business_status,
opening_hours:
details.opening_hours?.open_now,
price_level:
details.price_level,
phone_number:
details.formatted_phone_number ||
details.international_phone_number,
reviews:
(details.reviews || []).map((r) => ({
author_name: r.author_name,
rating: r.rating,
relative_time_description:
r.relative_time_description,
text: r.text,
})),
cuisines: parseCuisine(types),
delivery:
types.includes("meal_delivery"),
takeaway:
types.includes("meal_takeaway"),
distance_meters:
haversineDistance(
originLat,
originLng,
lat,
lng
),
});
}
}
return places;
}
function getOllamaModelName() {
return (
process.env[OLLAMA_MODEL_ENV] ||
DEFAULT_OLLAMA_MODEL
);
}
function runOllamaModel(prompt, modelName) {
return new Promise((resolve, reject) => {
const child = spawn("ollama", [
"run",
modelName,
"--nowordwrap",
]);
let output = "";
let errorOutput = "";
child.stdout.on("data", (data) => {
output += data.toString();
});
child.stderr.on("data", (data) => {
errorOutput += data.toString();
});
child.on("close", (code) => {
if (code !== 0) {
return reject(
new Error(errorOutput)
);
}
resolve(output.trim());
});
child.stdin.write(prompt);
child.stdin.end();
});
}
function buildRecommendationPrompt(
places,
location,
radius
) {
const cuisineCounts = {};
places.forEach((place) => {
place.cuisines.forEach((cuisine) => {
if (cuisine === "N/A") return;
cuisineCounts[cuisine] =
(cuisineCounts[cuisine] || 0) + 1;
});
});
const dominantCuisines =
Object.entries(cuisineCounts)
.sort((a, b) => b[1] - a[1])
.slice(0, 8)
.map(([name]) => name);
// Build a short restaurant summary to provide context to the LLM
const restaurantSummary = places
.slice(0, 10)
.map((p, index) => {
return `\n${index + 1}. ${p.name}\nCuisine: ${p.cuisines.join(", ")}\nRating: ${p.rating || 'N/A'}\nDistance: ${formatDistance(p.distance_meters)}\nAddress: ${p.address || 'N/A'}\n`;
})
.join('\n');
return `
You are a knowledgeable local food recommendation assistant.
The user is looking for foods to try near:
${location}
Nearby restaurants and cuisines indicate the local food preferences in this area.
Nearby restaurants:
${restaurantSummary}
Cuisine types:
${dominantCuisines.join(", ")}
Your task:
1. Recommend 5 to 7 foods or dishes that a visitor should try in this area.
2. Prioritize local specialties, local street food, and popular dishes suggested by the available cuisine types and restaurant reviews.
3. For each food, include a brief explanation of why it is worth trying and list recommended places to order it.
4. Use a numbered list format with each food item followed by recommended restaurant names.
5. Do NOT invent restaurants.
6. Do NOT assume the location is in a specific country unless it is obvious from the provided information.
7. Start your response with a heading like "🍽 Must-Try Foods in ${location}".
Return only the food recommendation text.
`;
}
async function recommendFoodWithLLM(
places,
location,
radius
) {
try {
const model =
getOllamaModelName();
const prompt =
buildRecommendationPrompt(
places,
location,
radius
);
const response =
await runOllamaModel(
prompt,
model
);
console.log(
"\nFood suggestions from Ollama:\n"
);
console.log(response);
} catch (err) {
console.log(
"\nUnable to generate recommendations:"
);
console.log(err.message);
}
}
function displayPlaces(places) {
if (!places.length) {
console.log(
"No food-related places found."
);
return;
}
places.forEach((place, index) => {
console.log(
`\n${index + 1}. ${place.name}`
);
console.log(
`Address: ${place.address || "N/A"}`
);
console.log(
`Phone: ${place.phone_number || "N/A"}`
);
console.log(
`Rating: ${place.rating || "N/A"} (${
place.user_ratings_total || 0
} reviews)`
);
console.log(
`Cuisine: ${place.cuisines.join(", ")}`
);
console.log(
`Distance: ${formatDistance(
place.distance_meters
)}`
);
if (
place.opening_hours !== undefined
) {
console.log(
`Status: ${
place.opening_hours
? "Open now"
: "Closed now"
}`
);
}
if (
place.reviews &&
place.reviews.length
) {
console.log("Reviews:");
place.reviews
.slice(0, 2)
.forEach((review) => {
console.log(
`- ${review.author_name} (${review.rating})`
);
console.log(
` ${review.text}`
);
});
}
});
}
async function ask(question, rl) {
return new Promise((resolve) =>
rl.question(question, resolve)
);
}
async function getFoodRecommendations(location, eventId = null) {
const apiKey = process.env[API_KEY_ENV];
let geo = { formattedAddress: location, lat: 0, lng: 0 };
let places = [];
if (!apiKey) {
// Fallback when no API key available — return a helpful message so ingest can continue
console.warn('GOOGLE_PLACES_API_KEY not set; returning fallback recommendation text');
const fallbackText = `Food recommendations unavailable: missing Google Places API key for ${location}.`;
// Save empty places doc with note
try {
const MONGO_URL = process.env.MONGODB_URI || '';
const client = new MongoClient(MONGO_URL, { useNewUrlParser: true, useUnifiedTopology: true });
await client.connect();
const db = client.db('reallives_serverless_eb');
const coll = db.collection('Food');
const doc = { eventId: eventId ? String(eventId) : null, location, origin: geo, recommendations: fallbackText, places: [], note: 'no-api-key', createdAt: new Date() };
if (doc.eventId) await coll.updateOne({ eventId: doc.eventId }, { $set: doc }, { upsert: true }); else await coll.insertOne(doc);
await client.close();
} catch (dbErr) {
console.warn('Failed to save food places to external DB:', dbErr.message || dbErr);
}
return fallbackText + ' Set GOOGLE_PLACES_API_KEY to enable real recommendations.';
}
try {
console.log('[getFoodRecommendations] Geocoding location:', location);
geo = await geocodeAddress(location, apiKey);
console.log('[getFoodRecommendations] Geocoding success:', geo.formattedAddress);
} catch (e) {
console.warn('[getFoodRecommendations] Geocoding failed:', e.message);
// Continue with location name as fallback
geo.formattedAddress = location;
}
try {
console.log('[getFoodRecommendations] Searching food places');
places = await searchFoodPlaces(geo.lat, geo.lng, apiKey, geo.formattedAddress);
console.log('[getFoodRecommendations] Found', places.length, 'places');
} catch (e) {
console.warn('[getFoodRecommendations] Food places search failed:', e.message);
// Continue with empty places array
}
let recommendationText = '';
try {
console.log('[getFoodRecommendations] Generating LLM recommendation');
const prompt = buildRecommendationPrompt(
places,
geo.formattedAddress,
DEFAULT_RADIUS_METERS
);
recommendationText = await runOllamaModel(
prompt,
getOllamaModelName()
);
} catch (e) {
console.warn('[getFoodRecommendations] LLM recommendation failed:', e.message, '— generating fallback text');
if (places.length === 0) {
recommendationText = `No food places found near ${geo.formattedAddress}.`;
} else {
const topPlaces = places
.slice(0, 5)
.map(
(p) =>
`${p.name} (${p.cuisines.join(', ')}, rating: ${p.rating || 'N/A'})`
)
.join('\n');
recommendationText = `Food recommendations near ${geo.formattedAddress}\n\nNearby restaurants:\n\n${topPlaces}`;
}
}
// Save structured places and generated recommendation into external MongoDB
try {
console.log('[getFoodRecommendations] Saving to external DB');
const MONGO_URL = process.env.MONGODB_URI || '';
const client = new MongoClient(MONGO_URL, { useNewUrlParser: true, useUnifiedTopology: true });
await client.connect();
const db = client.db('reallives_serverless_eb');
const coll = db.collection('Food');
const doc = {
eventId: eventId ? String(eventId) : null,
location: geo.formattedAddress,
origin: { lat: geo.lat, lng: geo.lng },
recommendations: recommendationText,
restaurants: places,
createdAt: new Date(),
};
if (doc.eventId) {
await coll.updateOne({ eventId: doc.eventId }, { $set: doc }, { upsert: true });
} else {
await coll.insertOne(doc);
}
await client.close();
console.log('[getFoodRecommendations] Saved to DB');
} catch (dbErr) {
console.warn('Failed to save food places to external DB:', dbErr.message || dbErr);
}
const restaurantSummary = places
.slice(0, 10)
.map((p, index) => {
return `\n${index + 1}. ${p.name}\nCuisine: ${p.cuisines.join(', ')}\nRating: ${p.rating || 'N/A'}\nDistance: ${formatDistance(p.distance_meters)}\nAddress: ${p.address || 'N/A'}\n`;
})
.join('\n');
return `\nFOOD RECOMMENDATIONS FOR ${geo.formattedAddress}\n\n${recommendationText}\n\nPLACES TO TRY THESE FOODS\n\n${restaurantSummary}\n`;
}
module.exports = {
getFoodRecommendations
};

View File

@ -6,6 +6,7 @@ const { buildEventKnowledgeTextFromEventId } = require('./conciergeEventKnowledg
const { getBufferFromS3Key } = require('./s3Media'); const { getBufferFromS3Key } = require('./s3Media');
const { extractTextFromPdfBuffer } = require('./conciergeDocumentExtract'); const { extractTextFromPdfBuffer } = require('./conciergeDocumentExtract');
const { crawlUrlSource, extractTextFromUrl } = require('./conciergeUrlCrawl'); const { crawlUrlSource, extractTextFromUrl } = require('./conciergeUrlCrawl');
const { getFoodRecommendations } = require('../services/foodRecommendationService');
async function extractTextFromPdf(sourcePath) { async function extractTextFromPdf(sourcePath) {
const buffer = await getBufferFromS3Key(sourcePath); const buffer = await getBufferFromS3Key(sourcePath);
@ -16,6 +17,29 @@ async function extractTextFromEvent(eventId) {
return buildEventKnowledgeTextFromEventId(eventId); return buildEventKnowledgeTextFromEventId(eventId);
} }
async function extractTextFromFood(eventId) {
const Event = require('../models/Event');
const event = await Event.findById(eventId);
if (!event) {
throw new Error('Event not found');
}
const location =
event.city ||
event.venue ||
event.location ||
event.address;
if (!location) {
throw new Error('No event location found');
}
return await getFoodRecommendations(location, eventId);
}
/** /**
* @param {import('../models/KnowledgeSource')} source * @param {import('../models/KnowledgeSource')} source
*/ */
@ -65,6 +89,8 @@ async function runConciergeIngest(sourceId) {
text = await extractTextFromPdf(source.sourcePath); text = await extractTextFromPdf(source.sourcePath);
} else if (source.type === 'event') { } else if (source.type === 'event') {
text = await extractTextFromEvent(source.sourcePath || source.eventId); text = await extractTextFromEvent(source.sourcePath || source.eventId);
} else if (source.type === 'food') {
text = await extractTextFromFood(source.sourcePath || source.eventId);
} else { } else {
throw new Error(`Unknown source type: ${source.type}`); throw new Error(`Unknown source type: ${source.type}`);
} }
@ -108,4 +134,5 @@ module.exports = {
extractTextFromUrlSource, extractTextFromUrlSource,
extractTextFromPdf, extractTextFromPdf,
extractTextFromEvent, extractTextFromEvent,
extractTextFromFood,
}; };