Starting to work with cities

README.md

@@ -40,3 +40,6 @@ Assuming, that the database is running locally and on a port 5432, change the va
 ### Update:
 ``git pull``
 
+### Thanks
+
+Thanks to https://simplemaps.com/resources/free-country-cities for the free version of a database with cities!

csvtosql.js

@@ -0,0 +1,42 @@
+import pg from "pg";
+import fs from "fs";
+import readline from 'readline';
+
+const { Client } = pg;
+
+
+const getClient = async () => {
+    const client = new Client({
+        user: process.env.POSTGRES_USER,
+        password: process.env.POSTGRES_PASSWORD,
+        host: process.env.POSTGRES_HOST,
+        port: process.env.POSTGRES_PORT,
+        database: process.env.POSTGRES_DB
+    });
+    await client.connect();
+
+    await client.query(fs.readFileSync('./scheme.psql').toString());
+
+    return client;
+};
+
+const db = await getClient();
+
+const file = fs.readFileSync("./output.csv").toString();
+
+const inFileStream = fs.createReadStream("./output.csv");
+
+const rl = readline.createInterface({
+    input: inFileStream,
+    output: null,  
+    crlfDelay: Infinity
+})
+
+rl.on('line', async (line) => {
+    let splitted = line.split(",")
+    await db.query(`INSERT INTO cities (name, lat, lng, country) VALUES ($1, $2, $3, $4);`, [splitted[0], splitted[1], splitted[2], splitted[3]])
+});
+
+rl.on('close', () => {
+    console.log("done");
+})

scheme.psql

@@ -9,6 +9,7 @@ CREATE TABLE IF NOT EXISTS users (
     language VARCHAR(8) DEFAULT 'en',
     country VARCHAR(64) DEFAULT NULL,
     city VARCHAR(64) DEFAULT NULL,
+    range DOUBLE PRECISION DEFAULT 20.0,
     current_action VARCHAR(16) DEFAULT NULL,
     currently_viewing VARCHAR(64) --link to "room_id"
 );
@@ -37,3 +38,10 @@ CREATE TABLE IF NOT EXISTS messages (
 );
 
 CREATE UNIQUE INDEX IF NOT EXISTS unique_messages ON messages(sender, recipient);
+
+CREATE TABLE IF NOT EXISTS cities (
+    name VARCHAR(32),
+    lat REAL,
+    lng REAL,
+    country VARCHAR(32)
+);

src/db.js

@@ -1,6 +1,7 @@
 import pg from 'pg';
 import fs from 'fs';
-import { convertMsgType } from './utils.js';
+import { convertMsgType, logError } from './utils.js';
+import { exec } from 'child_process';
 
 const { Client } = pg;
 
@@ -16,6 +17,15 @@ const getClient = async () => {
 
     await client.query(fs.readFileSync('./scheme.psql').toString());
 
+    if ((await client.query("SELECT * FROM cities")).rowCount < 6079) {
+        await client.query("DELETE FROM cities");
+        
+        //Not sure if pg has support for such kind of things, sooooooooo 
+        exec(`psql -h ${process.env.POSTGRES_HOST} -p ${process.env.POSTGRES_PORT} -d ${process.env.POSTGRES_DB} -U ${process.env.POSTGRES_USER} -f ./cities.sql`, (error) => {
+            if (error) logError(error);
+        })
+    }
+
     return client;
 };