Precisely filters HW4 Model Y cars on Tesla used inventory page
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// ==UserScript==
// @name Tesla Model Y HW4 Filter
// @namespace http://tampermonkey.net/
// @version 3.6
// @description Precisely filters HW4 Model Y cars on Tesla used inventory page
// @match https://www.tesla.com/inventory/used/my?*
// @grant none
// @license MIT
// @run-at document-idle
// @author sambrears
// @homepage https://greasyfork.org/en/scripts/542343-tesla-model-y-hw4-filter
// ==/UserScript==
(function () {
'use strict';
// HW4 thresholds
const THRESHOLDS = {
'F': 789500, // Fremont
'A': 131200, // Austin
'S': 380000, // Shanghai
'B': 100000 // Berlin
};
// Model year mapping
const MODEL_YEARS = {
'N': 2022,
'P': 2023,
'R': 2024,
'S': 2025
};
// Comprehensive HW4 detection logic
function isHW4(vin) {
if (!vin || vin.length !== 17) {
return false;
}
const modelYearCode = vin.charAt(9);
const factoryCode = vin.charAt(10);
const serialNumber = parseInt(vin.substring(11), 10);
// Prioritize 2024 detection (always HW4)
if (modelYearCode === 'R') {
return true;
}
const modelYear = MODEL_YEARS[modelYearCode] || 0;
// 2022 and earlier are always HW3
if (modelYear <= 2022) {
return false;
}
// For 2023, check against thresholds
if (modelYear === 2023) {
const threshold = THRESHOLDS[factoryCode];
return threshold !== undefined && serialNumber >= threshold;
}
return false;
}
// Find VIN for a card with multiple strategies
function findVINForCard(card) {
const vinsToTry = [
() => {
// Try finding VIN in multiple places
const vinSelectors = [
'.vin-display',
'[data-test="vehicle-vin"]',
'.inventory-details-link',
'.result-details-vin'
];
for (const selector of vinSelectors) {
const vinElement = card.querySelector(selector);
if (vinElement) {
const vinText = vinElement.textContent.trim();
if (vinText.length === 17) {
return vinText;
}
}
}
return null;
},
() => {
// Try extracting VIN from card's inner HTML
const matches = card.innerHTML.match(/\b[A-HJ-NPR-Z0-9]{17}\b/);
return matches ? matches[0] : null;
}
];
for (const vinFinder of vinsToTry) {
const vin = vinFinder();
if (vin && vin.length === 17) {
return vin;
}
}
return null;
}
// Filter and highlight HW4 cars
function filterHW4Cards() {
// More robust selector to capture cars
const cards = document.querySelectorAll(
'.results-container .result, ' +
'.inventory-results .result, ' +
'[data-test="inventory-results"] .result'
);
let hw4Count = 0;
let totalCount = cards.length;
cards.forEach((card, index) => {
// Ensure we can process the card
if (!card || !card.querySelector) {
return;
}
// Find VIN for the card
const vin = findVINForCard(card);
if (!vin) {
return;
}
const isHW4Vehicle = isHW4(vin);
if (isHW4Vehicle) {
hw4Count++;
card.classList.add('hw4-vehicle');
card.classList.remove('non-hw4-vehicle');
card.style.display = 'block';
card.style.border = '3px solid limegreen';
// Add HW4 badge
let badge = card.querySelector('.hw4-badge');
if (!badge) {
badge = document.createElement('div');
badge.classList.add('hw4-badge');
badge.textContent = 'HW4';
badge.style.position = 'absolute';
badge.style.top = '8px';
badge.style.right = '8px';
badge.style.background = 'limegreen';
badge.style.color = 'black';
badge.style.fontWeight = 'bold';
badge.style.padding = '2px 6px';
badge.style.borderRadius = '4px';
badge.style.zIndex = '10';
badge.style.fontSize = '12px';
card.style.position = 'relative';
card.appendChild(badge);
}
} else {
card.classList.add('non-hw4-vehicle');
card.classList.remove('hw4-vehicle');
card.style.display = 'none';
card.style.border = '1px solid red';
// Remove any existing HW4 badge
const existingBadge = card.querySelector('.hw4-badge');
if (existingBadge) {
existingBadge.remove();
}
}
});
updateFilterButtonText(hw4Count, totalCount);
}
// Create filter toggle button
function createFilterToggleButton() {
const toggleBtn = document.createElement('button');
toggleBtn.id = 'hw4-filter-toggle';
toggleBtn.style.position = 'fixed';
toggleBtn.style.bottom = '20px';
toggleBtn.style.right = '20px';
toggleBtn.style.zIndex = '9999';
toggleBtn.style.padding = '8px 12px';
toggleBtn.style.backgroundColor = '#333';
toggleBtn.style.color = 'white';
toggleBtn.style.border = 'none';
toggleBtn.style.cursor = 'pointer';
toggleBtn.style.borderRadius = '4px';
let showNonHW4 = false;
toggleBtn.addEventListener('click', () => {
showNonHW4 = !showNonHW4;
const nonHW4Vehicles = document.querySelectorAll('.non-hw4-vehicle');
nonHW4Vehicles.forEach(vehicle => {
vehicle.style.display = showNonHW4 ? 'block' : 'none';
});
toggleBtn.textContent = showNonHW4
? `Show Only HW4 (${document.querySelectorAll('.hw4-vehicle').length}/${document.querySelectorAll('.result').length})`
: `Show All Cars (${document.querySelectorAll('.hw4-vehicle').length}/${document.querySelectorAll('.result').length})`;
});
document.body.appendChild(toggleBtn);
return toggleBtn;
}
// Update filter button text
function updateFilterButtonText(hw4Count, totalCount) {
const toggleBtn = document.getElementById('hw4-filter-toggle');
if (toggleBtn) {
toggleBtn.textContent = `Show Only HW4 (${hw4Count}/${totalCount})`;
}
}
// Run after delay to allow page to settle
setTimeout(() => {
createFilterToggleButton();
// Initial filter
filterHW4Cards();
// Set up mutation observer to catch dynamic content
const observer = new MutationObserver((mutations) => {
for (const mutation of mutations) {
if (mutation.addedNodes.length) {
// Slight delay to ensure content is fully loaded
setTimeout(filterHW4Cards, 500);
break;
}
}
});
observer.observe(document.body, {
childList: true,
subtree: true
});
}, 2000);
})();