@developers-joyride/shortify/examples/collection-name-and-uniqueness-example.ts

High performance URL shortener library with multi-database support (MongoDB, SQLite, PostgreSQL, MySQL)

import Shortify, { DatabaseConfig } from "../src/index";

async function demonstrateFixes() {
  console.log(
    "=== Demonstrating Collection Name and URL ID Uniqueness Fixes ===\n"
  );

  // Example 1: Collection name preservation
  console.log("1. Collection Name Preservation:");
  console.log(
    "   - Custom collection name 'MyCustomCollection' should be preserved as-is"
  );
  console.log("   - Previously it was being converted to lowercase\n");

  // Example 2: URL ID uniqueness
  console.log("2. URL ID Uniqueness:");
  console.log("   - Each shorten() call should generate a unique URL ID");
  console.log("   - Previously, same original URL would return same URL ID\n");

  // Create a simple in-memory SQLite instance for demonstration
  const dbConfig: DatabaseConfig = {
    type: "sqlite",
    database: ":memory:",
    tableName: "MyCustomTable", // This should be preserved
  };

  const shortify = new Shortify("https://short.ly", dbConfig);
  await shortify.connect();

  console.log("3. Testing URL ID Uniqueness:");
  const originalUrl =
    "https://www.example.com/very-long-url-that-needs-shortening";

  // Create multiple shortened URLs for the same original URL
  const result1 = await shortify.shorten(originalUrl);
  const result2 = await shortify.shorten(originalUrl);
  const result3 = await shortify.shorten(originalUrl);

  console.log(`   Original URL: ${originalUrl}`);
  console.log(
    `   Result 1 - URL ID: ${result1.urlId}, Short URL: ${result1.shortUrl}`
  );
  console.log(
    `   Result 2 - URL ID: ${result2.urlId}, Short URL: ${result2.shortUrl}`
  );
  console.log(
    `   Result 3 - URL ID: ${result3.urlId}, Short URL: ${result3.shortUrl}`
  );

  // Verify all URL IDs are unique
  const urlIds = [result1.urlId, result2.urlId, result3.urlId];
  const uniqueUrlIds = new Set(urlIds);

  console.log(
    `\n   All URL IDs are unique: ${uniqueUrlIds.size === urlIds.length}`
  );
  console.log(`   Expected: true, Got: ${uniqueUrlIds.size === urlIds.length}`);

  // Verify all resolve to the same original URL
  const resolved1 = await shortify.resolve(result1.urlId);
  const resolved2 = await shortify.resolve(result2.urlId);
  const resolved3 = await shortify.resolve(result3.urlId);

  console.log(
    `\n   All resolve to original URL: ${
      resolved1 === resolved2 && resolved2 === resolved3
    }`
  );
  console.log(
    `   Expected: true, Got: ${
      resolved1 === resolved2 && resolved2 === resolved3
    }`
  );

  console.log("\n4. Testing Custom URL ID Conflict Handling:");

  // Try to use the same custom URL ID twice
  const customId = "my-custom-id";
  const customResult1 = await shortify.shorten("https://example1.com", {
    customUrlId: customId,
  });
  const customResult2 = await shortify.shorten("https://example2.com", {
    customUrlId: customId,
  });

  console.log(`   First custom URL ID: ${customResult1.urlId}`);
  console.log(`   Second custom URL ID: ${customResult2.urlId}`);
  console.log(
    `   Custom ID conflict handled: ${
      customResult1.urlId !== customResult2.urlId
    }`
  );
  console.log(
    `   Expected: true, Got: ${customResult1.urlId !== customResult2.urlId}`
  );

  await shortify.disconnect();
  console.log("\n=== Demonstration Complete ===");
}

// Run the demonstration
demonstrateFixes().catch(console.error);