import 'dotenv/config';
import { drizzle } from 'drizzle-orm/node-postgres';
import pkg from 'pg';
const { Pool } = pkg;
import * as schema from './schema.js';
import { readFileSync } from 'fs';
import { BusinessListing, CommercialPropertyListing, User } from 'src/models/db.model.js';


const connectionString = process.env.DATABASE_URL
// const pool = new Pool({connectionString})
const client = new Pool({ connectionString })
const db = drizzle(client, { schema, logger: true });

//Delete Content
await db.delete(schema.commercials);
await db.delete(schema.businesses);
await db.delete(schema.users);

//Broker
let filePath = `./data/broker.json`
let data: string = readFileSync(filePath, 'utf8');
const userData: User[] = JSON.parse(data); // Erwartet ein Array von Objekten        
const generatedUserData = []
console.log(userData.length)
for (const user of userData) {
    delete user.id
    const u = await db.insert(schema.users).values(user).returning({ insertedId: schema.users.id });
    // console.log(`--> ${u[0].insertedId}`)
    generatedUserData.push(u[0].insertedId);
}
//Business Listings
filePath = `./data/businesses.json`
data = readFileSync(filePath, 'utf8');
const businessJsonData = JSON.parse(data) as BusinessListing[]; // Erwartet ein Array von Objekten        

for (const business of businessJsonData) {
    delete business.id
    business.created = new Date(business.created)
    business.userId = getRandomItem(generatedUserData);
    await db.insert(schema.businesses).values(business);
}
//Corporate Listings
filePath = `./data/commercials.json`
data = readFileSync(filePath, 'utf8');
const commercialJsonData = JSON.parse(data) as CommercialPropertyListing[]; // Erwartet ein Array von Objekten        
for (const commercial of commercialJsonData) {
    delete commercial.id
    commercial.created = getRandomDateWithinLastYear();
    commercial.userId = getRandomItem(generatedUserData);
    await db.insert(schema.commercials).values(commercial);
}

//End
await client.end()

function getRandomItem<T>(arr: T[]): T {
    if (arr.length === 0) {
        throw new Error('The array is empty.');
    }

    const randomIndex = Math.floor(Math.random() * arr.length);
    return arr[randomIndex];
}
function getRandomDateWithinLastYear(): Date {
    const currentDate = new Date();
    const lastYear = new Date(currentDate.getFullYear() - 1, currentDate.getMonth(), currentDate.getDate());
    
    const timeDiff = currentDate.getTime() - lastYear.getTime();
    const randomTimeDiff = Math.random() * timeDiff;
    const randomDate = new Date(lastYear.getTime() + randomTimeDiff);
    
    return randomDate;
  }