// ==UserScript==
// @name         Instacart Ad Remover
// @namespace    https://greasyfork.org/users/1354160
// @version      72.0.0.260916
// @description  Blocks those nasty Instacart ads on various pages, including in search, store home page, user home page, cart, etc. Also removes dynamically inserted promo blocks.
// @downloadURL  https://raw.githubusercontent.com/LanikSJ/userscripts/main/instacart-ad-remover.js
// @updateURL    https://raw.githubusercontent.com/LanikSJ/userscripts/main/instacart-ad-remover.js
// @homepageURL  https://laniksj.github.io/userscripts
// @author       LanikSJ
// @license      MIT
// @match        https://*.instacart.ca/*
// @match        https://*.instacart.com/*
// @grant        GM_addStyle
// ==/UserScript==

(function () {
  'use strict';

  /* global unsafeWindow */

  unsafeWindow.Element.prototype._attachShadow = unsafeWindow.Element.prototype.attachShadow;
  unsafeWindow.Element.prototype.attachShadow = function () {
    return this._attachShadow({
      mode: "open"
    });
  };

  function waitForKeyElements(selectorOrFunction, callback, waitOnce, interval, maxIntervals) {
    if (typeof waitOnce === "undefined") {
      waitOnce = true;
    }
    if (typeof interval === "undefined") {
      interval = 300;
    }
    if (typeof maxIntervals === "undefined") {
      maxIntervals = -1;
    }
    var targetNodes =
      typeof selectorOrFunction === "function" ?
        selectorOrFunction() :
        document.querySelectorAll(selectorOrFunction);

    var targetsFound = targetNodes && targetNodes.length > 0;
    if (targetsFound) {
      targetNodes.forEach(function (targetNode) {
        var attrAlreadyFound = "data-userscript-alreadyFound";
        var alreadyFound = targetNode.getAttribute(attrAlreadyFound) || false;
        if (!alreadyFound) {
          var cancelFound = callback(targetNode);
          if (cancelFound) {
            targetsFound = false;
          } else {
            targetNode.setAttribute(attrAlreadyFound, true);
          }
        }
      });
    }

    if (maxIntervals !== 0 && !(targetsFound && waitOnce)) {
      maxIntervals -= 1;
      setTimeout(function () {
        waitForKeyElements(selectorOrFunction, callback, waitOnce, interval, maxIntervals);
      }, interval);
    }
  }

  let sponsoredTexts = ["promoted", "sponsoreed", "sponsored", "spaahnserd", "spawhnserd", "spawnserd", "spaunsered", "spaunserd", "spauncered", "spauncerd", "spohnserd", "spohncerd", "spohncered", "spawncerd", "spawncered"]

  function isSponsored(elem) {
    if (!elem) return false;

    const sponsored = elem.querySelector('*[data-cfp-eligible]');

    return Boolean(sponsored);
  }

  function isSponsoredImg(img) {
    if (!img) return false;

    const attrs = Array.from(img.attributes);

    const isSponsored = attrs.find(({
      value
    }) => sponsoredTexts.find(txt => value.toLowerCase().includes(txt)));

    return Boolean(isSponsored);
  }

  function individualItems(jNode) {
    let li = jNode.closest('li')

    if (isSponsored(li)) {
      let parent = li.parentNode;
      if (parent.tagName === 'DIV') {
        parent.style.display = 'none'
      } else {
        li.style.display = 'none';
      }
    }
  }

  function undesiredElement(jNode) {
    jNode.style.display = 'none'
  }

  function blockAdsInSearch() {
    // var lists = document.querySelectorAll('#store-wrapper .e-1yrpusx:not([style*="display:none"]):not([style*="display: none"]) > ul')

    let [head, ...tail] = [].filter.call(document.querySelectorAll('#store-wrapper .e-1yrpusx:not([style*="display:none"]):not([style*="display: none"]) > ul'), function (elem) {
      return elem.querySelector('div[aria-label="Product"]')
    });

    // lists.filter(list => list.querySelector('div[aria-label="Product"]') !== null)
    if (head) {
      let mainList = head
      let otherLists = tail.map(node => node.querySelectorAll('li'))

      otherLists.forEach(itemList => itemList.forEach(item => mainList.append(item)))

      tail.forEach(node => node.style.display = "none")

      mainList.childNodes.forEach(item => {
        if (isSponsored(item)) {
          item.style.display = 'none';
        }
      })
    }
  }

  function blockAdsInCart(jNode) {
    let div = jNode

    if (div.innerHTML.indexOf('Suggested items') !== -1) {
      div.style.display = 'none'
    }
  }

  function defaultTip(jNode) {
    const spans = jNode.querySelectorAll('span');

    const otherSpan = [...spans].filter(span => span.innerHTML === 'Other')[0]

    if (otherSpan) {
      let otherBtn = otherSpan.closest('button')
      otherBtn.click()

      const tipDiv = document.querySelector('div[aria-label="Say thanks with a tip"]')
      tipDiv.querySelector('#radio-base-option-4').click()

      const otherInput = tipDiv.querySelector('input[placeholder="Other amount"]')
      otherInput.focus();

      waitForKeyElements('div[aria-label="Say thanks with a tip"] button:has(span)', function (jNode) {
        const btn = jNode

        if (btn.innerText.includes('Continue')) {
          btn.click()
        }
      }, false)
    }
  }

  function sponsoredCarousel(jNode) {
    let elem = jNode

    function traverseAncestors(node) {
      if (node) {
        if (node.tagName === 'DIV') {
          // let spans = node.querySelectorAll('span')
          // let sponsoredSpans = [...spans].filter(span => span.innerHTML == ' nsored')
          let imgs = node.querySelectorAll('img')
          let sponsoredImgs = [...imgs].filter(img => isSponsoredImg(img))
          let individualSponsored = isSponsored(node)
          let scrollbars = node.querySelectorAll('.u-noscrollbar')

          if ((sponsoredImgs.length > 0) && (!individualSponsored) && (scrollbars.length === 1)) {
            console.log(node)
            node.style.display = 'none';
          } else if (scrollbars.length > 1) {
            return;
          } else {
            traverseAncestors(node.parentNode);
          }
        } else traverseAncestors(node.parentNode)
      }
    }

    if (!window.location.href.endsWith('homeTabForYou')) {
      traverseAncestors(elem.parentNode)
    }
  }

  function sponsoredPlacement(jNode) {
    let node = jNode

    let imgs = node.querySelectorAll('img')
    let sponsoredImgs = [...imgs].filter(img => isSponsoredImg(img))

    if ((sponsoredImgs.length > 0)) {
      node.style.display = 'none';
    }
  }

  function continueToNext(jNode) {
    let span = jNode

    if (span.innerText === 'Continue to checkout') {
      setTimeout(function () {
        span.closest('button').click();
      }, 500);
    }
  }

  waitForKeyElements('#store-wrapper div[aria-label="Product"]', blockAdsInSearch, false);
  waitForKeyElements('#store ul li div[aria-label="Product"] > div', individualItems, false);
  waitForKeyElements('#store-wrapper div[data-testid="regimen-section"]', undesiredElement, false);
  waitForKeyElements('#cart-body > div', blockAdsInCart, false);
  waitForKeyElements('#store-wrapper div[aria-label="Treatment Tracker modal"]', undesiredElement, false) // offer banner at bottom
  waitForKeyElements('#store div[aria-label="announcement"]', undesiredElement, false)
  waitForKeyElements('#store-wrapper div[aria-label="Tip Options"]', defaultTip, false)
  waitForKeyElements('#store-wrapper .u-noscrollbar', sponsoredCarousel, false)
  waitForKeyElements('footer span', continueToNext, false)
  waitForKeyElements('#storefront-placements-content article', sponsoredPlacement, false)
  waitForKeyElements('#store-wrapper article', sponsoredPlacement, false)
  waitForKeyElements('#store-wrapper div[role="region"] > section', sponsoredPlacement, false)
  waitForKeyElements('div[data-testid="recommendations-placements-feed"]', undesiredElement, false)

  // ---- Dynamically inserted promo blocks (merged from instacart-ad-remover.js) ----

  function removeAdBlocks() {
    // Target elements inside unified data placement containers
    const targetBlocks = document.querySelectorAll('div[data-placements="unified"] > div');

    targetBlocks.forEach(block => {
      // Check if the block contains a brand promo link or section
      if (block.querySelector('a[href*="/brands/"]') || block.querySelector('section')) {
        block.remove();
      }
    });
  }

  // Run initially
  removeAdBlocks();

  // Observe page updates to catch dynamically loaded ads (debounced via rAF)
  let rafScheduled = false;

  function scheduleRemoveAdBlocks() {
    if (rafScheduled) return;
    rafScheduled = true;
    requestAnimationFrame(() => {
      rafScheduled = false;
      removeAdBlocks();
    });
  }

  function startAdBlockObserver() {
    new MutationObserver(scheduleRemoveAdBlocks).observe(document.body, {
      childList: true,
      subtree: true
    });
  }

  if (document.body) {
    startAdBlockObserver();
  } else {
    document.addEventListener('DOMContentLoaded', startAdBlockObserver, { once: true });
  }
})();