Use place ratings (temp affinity)

apps/blakus-api/migrations/20250315172409_place_ratings.js

@@ -0,0 +1,22 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = function(knex) {
+  return knex.schema
+    .createTable('place_ratings', function (table) {
+      table.uuid('id').primary().defaultTo(knex.raw(`gen_random_uuid()`));
+      table.uuid('place_id').references('id').inTable('places').onDelete('CASCADE');
+      table.uuid('user_id').references('id').inTable('users').onDelete('CASCADE');
+      table.integer('rating').notNullable();
+      table.timestamps(true, true);
+    })
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = function(knex) {
+  knex.schema.dropTable('place_ratings');
+};

apps/blakus-api/seeds/users.js

@@ -1,4 +1,5 @@
 const { fakerLV : faker } = require('@faker-js/faker');
+const { randomUUID } = require('crypto');
 
 const USER_COUNT = 500;
 
@@ -8,6 +9,8 @@ const USER_COUNT = 500;
  */
 exports.seed = async function(knex) {
 
+  const places = await knex('places').select('id');
+
   const createUser = ({
     sex = faker.person.sexType(),
     first_name = `${faker.person.firstName(sex)}`,
@@ -15,13 +18,14 @@ exports.seed = async function(knex) {
     email = faker.internet.email({ lastName: last_name, firstName: first_name }).toLocaleLowerCase(),
   } = {}) => {
     return {
+      id: randomUUID(),
       first_name,
       last_name,
       email,
     }
   };
 
-  await knex('users').insert([
+  const users = [
     createUser({
       first_name: 'Broks Randolfs',
       last_name: 'Gailītis',
@@ -32,5 +36,21 @@ exports.seed = async function(knex) {
       last_name: 'Gailīte'
     }),
     ...new Array(USER_COUNT).fill(() => createUser()).map((fn, i) => fn(i)),
-  ]);
+  ];
+
+  await knex('users').insert(users);
+
+  // Generate multiple random place ratings for each user
+  for (const user of users) {
+    const placeIds = faker.helpers.arrayElements(places, { min: 1, max: 10 });
+    for (const placeId of placeIds) {
+      await knex('place_ratings').insert({
+        id: randomUUID(),
+        user_id: user.id,
+        place_id: placeId.id,
+        rating: faker.number.int({ min: 1, max: 5 }),
+      });
+    }
+  }
+  
 };

apps/blakus-api/src/app/routes/blakus.ts

@@ -53,6 +53,8 @@ export default async function (fastify: FastifyInstance) {
 
     const knownPlaces = await db('places')
       .leftJoin('categories', 'places.category_id', 'categories.id')
+      .join('place_ratings', 'places.id', 'place_ratings.place_id')
+      .avg('place_ratings.rating AS affinity') // TODO: work on real affinity score
       .select(
         'places.id',
         'places.name',
@@ -67,10 +69,13 @@ export default async function (fastify: FastifyInstance) {
         db.raw('ST_Y(places.coordinates::geometry) AS lat'),
         db.raw('ST_X(places.coordinates::geometry) AS lon'),
         'categories.name AS category'
-      ).whereRaw(
+      )
+      .whereRaw(
         'ST_DWithin(places.coordinates, ST_SetSRID(ST_MakePoint(?, ?), 4326), ?)',
         [lon, lat, 2000]
-      );
+      )
+      .groupBy('places.id', 'categories.name')
+      .orderBy('affinity', 'desc')
 
     // const externalIds = await db.select('externalId').from('places').where('externalId', 'like', 'osm:%');
 
@@ -114,7 +119,7 @@ export default async function (fastify: FastifyInstance) {
         lat: place.lat,
         lon: place.lon,
       },
-      affinity: Math.floor(Math.random() * 101) // TODO: this is just a placeholder for "affinity" calculation
+      affinity: place.affinity // TODO: this is just a placeholder for "affinity" calculation
     }));
 
     reply.send(blakus);