// ==UserScript==
// @name Hide GitHub Copilot reviews
// @description Declutter GitHub pull requests by hiding reviews from Copilot
// @version 1
// @namespace https://github.com/*/*/pull/*
// @include https://github.com/*/*/pull/*
// ==/UserScript==

function css(input) {
  return input.replace(/\s+/g, ' ')
}

const COPILOT_HIDDEN_REVIEW_CSS = css(`
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px;
`)

const COPILOT_HIDDEN_REVIEW_TEXT_CSS = css(`
  opacity: 0.85
`)

const SHOW_ANYWAY_BUTTON_CSS = css(`
  border-radius: 5px;
  border: none;
  padding: 5px;
`)

const SHOW_COPILOT_REVIEWS_QUERY = 'show_copilot_reviews=true'

const COPILOT_REVIEW_HIDDEN_DIV = `
<div style="${COPILOT_HIDDEN_REVIEW_CSS}">
  <span>🤖🚫 <i style="${COPILOT_HIDDEN_REVIEW_TEXT_CSS}">Review from GitHub Copilot hidden.</i></span>
  <button style="${SHOW_ANYWAY_BUTTON_CSS}" onclick="window.location.replace(\`\${window.location.href}?${SHOW_COPILOT_REVIEWS_QUERY}\`)">Show anyway</button>
</div>
`

function timelineItemIsFromCopilot(itemDiv) {
  return itemDiv.innerText.includes('Copilot AI reviewed')
}

function findCopilotReviews() {
  const timelineItems = Array.from(document.querySelectorAll('.js-timeline-item'))
  return timelineItems.filter(timelineItemIsFromCopilot)
}

function hideCopilotReviews() {
  if (window.location.search.includes(SHOW_COPILOT_REVIEWS_QUERY)) {
    return
  }
  
  const copilotReviews = findCopilotReviews()
  
  for (const review of copilotReviews) {
    review.innerHTML = COPILOT_REVIEW_HIDDEN_DIV
  }
}

window.addEventListener('load', hideCopilotReviews)