Search Button Enhancer

Add search buttons to Exoticaz and MissAV pages
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// ==UserScript==
// @name         Search Button Enhancer
// @namespace    http://tampermonkey.net/
// @version      1.8
// @description  Add search buttons to Exoticaz and MissAV pages
// @author       troublesis <[email protected]>
// @match        https://exoticaz.to/torrents*
// @match        https://exoticaz.to/torrent/*
// @match        https://missav.ws/*
// @match        https://missav.live/*
// @match        https://javdb.com/*
// @match        https://www.javdb.com/*
// @match        https://www5.javmost.com/*
// @match        https://javbus.com/*
// @match        https://www.javbus.com/*
// @grant        none
// @license      MIT
// ==/UserScript==
;(function () {
  'use strict'

  // Configuration: Add or modify search providers here
  const SEARCH_PROVIDERS = [
    {
      name: 'Exoticaz',
      icon: '',
      url: 'https://exoticaz.to/torrents?in=1&search=%s#jump',
      className: 'btn-warning',
      hostPattern: /(^|\.)exoticaz\.to$/,
    },
    {
      name: 'NetFlav',
      icon: '',
      url: 'https://netflav.com/search?type=title&keyword=',
      className: 'btn-warning',
    },
    {
      name: 'JavDB',
      icon: '',
      url: 'https://JavDB.com/search?f=all&q=%s&sb=0#query#jump&locale=zh#jump',
      className: 'btn-warning',
      hostPattern: /(^|\.)javdb\.com$/i,
    },
    {
      name: 'JavMost',
      icon: '',
      url: 'https://www5.javmost.com/tag/%s#jump',
      className: 'btn-warning',
      hostPattern: /(^|\.)javmost\.com$/i,
    },
    {
      name: 'JavBus',
      icon: '',
      url: 'https://www.JavBus.com/search/%s#query#jump',
      className: 'btn-warning',
      hostPattern: /(^|\.)javbus\.com$/i,
    },
    {
      name: 'Missav',
      icon: '',
      url: 'https://missav.ws/dm18/cn/%s#jump',
      className: 'btn-warning',
      hostPattern: /(^|\.)missav\.(ws|live)$/i,
    },
    // Add more providers here:
    // {
    //   name: 'Google',
    //   icon: '🌐',
    //   url: 'https://www.google.com/search?q=',
    //   className: 'btn-info'
    // }
  ]

  function buildProviderUrl(provider, code) {
    const encodedCode = encodeURIComponent(code)
    return provider.url.includes('%s')
      ? provider.url.replace('%s', encodedCode)
      : `${provider.url}${encodedCode}`
  }

  function getVisibleProviders() {
    const host = location.hostname
    return SEARCH_PROVIDERS.filter(provider => {
      if (!provider.hostPattern) return true
      return !provider.hostPattern.test(host)
    })
  }

  function createSearchButton(code, provider, isListPage = false) {
    const btn = document.createElement(isListPage ? 'button' : 'a')
    btn.textContent = `${provider.icon} ${provider.name}`
    btn.className = `btn btn-xs ${provider.className} search-btn`
    btn.style.marginLeft = '6px'
    btn.style.marginTop = isListPage ? '4px' : '0'

    if (isListPage) {
      // For list page buttons
      btn.style.padding = '2px 6px'
      btn.style.fontSize = '12px'
      btn.style.border = '1px solid #ccc'
      btn.style.borderRadius = '4px'
      btn.style.cursor = 'pointer'
      btn.onclick = e => {
        e.stopPropagation()
        window.open(buildProviderUrl(provider, code), '_blank')
      }
    } else {
      // For detail page buttons (links)
      btn.href = buildProviderUrl(provider, code)
      btn.target = '_blank'
    }

    return btn
  }

  function addSearchButtons(container, code, isListPage = false) {
    // Remove existing search buttons to avoid duplicates
    container.querySelectorAll('.search-btn').forEach(btn => btn.remove())

    // Add all configured search buttons
    getVisibleProviders().forEach(provider => {
      const searchBtn = createSearchButton(code, provider, isListPage)
      container.appendChild(searchBtn)
    })
  }

  function handleDetailPage() {
    const titleEl = document.querySelector('h1.h4')
    if (!titleEl) return

    const match = titleEl.textContent.match(/\[([^\]]+)\]/)
    if (!match) return

    const code = match[1]

    // Look for the "Download as Text File" button
    const txtBtn = Array.from(document.querySelectorAll('a.btn')).find(el =>
      el.textContent.includes('Download as Text')
    )

    if (!txtBtn) return

    const container = txtBtn.parentElement
    if (!container) return

    // Create a wrapper for search buttons if it doesn't exist
    let searchWrapper = container.querySelector('.search-wrapper')
    if (!searchWrapper) {
      searchWrapper = document.createElement('span')
      searchWrapper.className = 'search-wrapper'
      container.insertBefore(searchWrapper, txtBtn.nextSibling)
    }

    addSearchButtons(searchWrapper, code, false)
  }

  function handleListPage() {
    // Use requestAnimationFrame to avoid blocking the main thread
    const processInBatches = () => {
      const torrentLinks = document.querySelectorAll(
        'a.torrent-link:not([data-search-processed])'
      )
      const batchSize = 10 // Process 10 items at a time

      for (let i = 0; i < Math.min(batchSize, torrentLinks.length); i++) {
        const link = torrentLinks[i]
        link.setAttribute('data-search-processed', 'true')

        const title = link.getAttribute('title') || link.textContent
        const match = title.match(/\[([^\]]+)\]/)
        if (!match) continue

        const code = match[1]
        const row = link.closest('tr')
        if (!row) continue

        const actionTd = row.querySelector('td > .align-top')?.parentElement
        const alignBottom = actionTd?.querySelector('.align-bottom')
        if (!alignBottom) continue

        // Create a wrapper for search buttons if it doesn't exist
        let searchWrapper = alignBottom.querySelector('.search-wrapper')
        if (!searchWrapper) {
          searchWrapper = document.createElement('div')
          searchWrapper.className = 'search-wrapper'
          searchWrapper.style.marginTop = '4px'
          alignBottom.appendChild(searchWrapper)
        }

        addSearchButtons(searchWrapper, code, true)
      }

      // If there are more items to process, schedule the next batch
      if (torrentLinks.length > batchSize) {
        requestAnimationFrame(processInBatches)
      }
    }

    requestAnimationFrame(processInBatches)
  }

  function extractMissavCode() {
    const segments = location.pathname.split('/').filter(Boolean)
    if (segments.length === 0) return null

    const slug = segments[segments.length - 1]
    if (!slug) return null

    // Example: juq-609-uncensored-leak -> juq-609
    const match = slug.match(/[a-z]{2,8}-\d{2,6}/i)
    return match ? match[0].toLowerCase() : null
  }

  function createMissavSearchButton(code, provider) {
    const link = document.createElement('a')
    link.href = buildProviderUrl(provider, code)
    link.target = '_blank'
    link.rel = 'noopener noreferrer'
    link.className =
      'inline-flex items-center whitespace-nowrap text-sm leading-4 font-medium focus:outline-none text-nord4 hover:text-nord6 search-btn'
    link.style.marginLeft = '12px'
    link.textContent = provider.name
    return link
  }

  function handleMissavPage() {
    let code = extractMissavCode()

    // Check for search result header (Point 3)
    const searchHeader = document.querySelector(
      'h1.text-center.text-2xl.text-nord4.mb-6'
    )
    if (
      !code &&
      searchHeader &&
      (searchHeader.textContent.includes('的搜寻结果') ||
        searchHeader.textContent.includes('Search results for'))
    ) {
      // Extract query from "XYZ 的搜寻结果" or "Search results for XYZ"
      code = searchHeader.textContent
        .replace('的搜寻结果', '')
        .replace('Search results for', '')
        .trim()
    }

    if (!code) return

    // Point 1: Standard Action Bar (Video detail page)
    const actionBar = document.querySelector(
      'div.flex.flex-wrap.justify-center.py-8.rounded-md.shadow-sm'
    )
    if (actionBar) {
      let wrapper = actionBar.querySelector('.search-wrapper-missav')
      if (!wrapper) {
        wrapper = document.createElement('span')
        wrapper.className = 'search-wrapper-missav inline-flex items-center'
        actionBar.appendChild(wrapper)
      }

      wrapper.querySelectorAll('.search-btn').forEach(btn => btn.remove())
      getVisibleProviders().forEach(provider => {
        const btn = createMissavSearchButton(code, provider)
        wrapper.appendChild(btn)
      })
    }

    // Point 2: Under "Back to Home" button
    const homeBtn = Array.from(
      document.querySelectorAll('a.button-primary')
    ).find(
      el =>
        el.textContent.includes('返回主页') ||
        (el.href &&
          (el.href.endsWith('/cn') ||
            el.href.endsWith('/en') ||
            el.href.endsWith('/ja')))
    )

    if (homeBtn) {
      let wrapper = homeBtn.parentElement.querySelector(
        '.search-wrapper-missav-home'
      )
      if (!wrapper) {
        wrapper = document.createElement('div')
        wrapper.className =
          'search-wrapper-missav-home mt-4 flex flex-wrap justify-center'
        homeBtn.after(wrapper)
      }

      wrapper.querySelectorAll('.search-btn').forEach(btn => btn.remove())
      getVisibleProviders().forEach(provider => {
        const btn = createMissavSearchButton(code, provider)
        btn.style.margin = '4px 6px'
        wrapper.appendChild(btn)
      })
    }

    // Point 3: Under Search Header
    if (searchHeader) {
      let wrapper = searchHeader.nextElementSibling?.classList.contains(
        'search-wrapper-missav-header'
      )
        ? searchHeader.nextElementSibling
        : null

      if (!wrapper) {
        wrapper = document.createElement('div')
        wrapper.className =
          'search-wrapper-missav-header mb-6 flex flex-wrap justify-center'
        searchHeader.after(wrapper)
      }

      wrapper.querySelectorAll('.search-btn').forEach(btn => btn.remove())
      getVisibleProviders().forEach(provider => {
        const btn = createMissavSearchButton(code, provider)
        btn.style.margin = '4px 6px'
        wrapper.appendChild(btn)
      })
    }
  }

  function shouldAutoJump() {
    return /(^|#)jump($|#|&)/i.test(location.hash)
  }

  function getFirstResultLinkByHost() {
    const selectorsByHost = [
      {
        host: /(^|\.)exoticaz\.to$/i,
        selectors: ['a.torrent-link[href*="/torrent/"]'],
      },
      {
        host: /(^|\.)javdb\.com$/i,
        selectors: [
          '.movie-list a.box[href]',
          'a.box[href*="/v/"]',
          'a[href*="/v/"]',
        ],
      },
      {
        host: /(^|\.)javmost\.com$/i,
        selectors: ['.post a[href]', '.entry-title a[href]', 'article a[href]'],
      },
      {
        host: /(^|\.)javbus\.com$/i,
        selectors: [
          'a.movie-box[href]',
          'a[href*="/uncensored/"]',
          'a[href*="/search/"]',
        ],
      },
      {
        host: /(^|\.)missav\.(ws|live)$/i,
        selectors: ['a[href*="/dm"]', 'a[href*="/cn/"]'],
      },
    ]

    const hostRule = selectorsByHost.find(rule =>
      rule.host.test(location.hostname)
    )
    if (!hostRule) return null

    for (const selector of hostRule.selectors) {
      const link = document.querySelector(selector)
      if (!link) continue

      const href = link.getAttribute('href') || ''
      if (!href || href.startsWith('#') || href.startsWith('javascript:'))
        continue
      if (link.closest('header, nav, footer')) continue

      return link
    }

    return null
  }

  function handleAutoJump() {
    if (!shouldAutoJump()) return

    let attempts = 0
    const maxAttempts = 20
    const jumpTimer = setInterval(() => {
      attempts += 1
      const firstLink = getFirstResultLinkByHost()
      if (!firstLink) {
        if (attempts >= maxAttempts) clearInterval(jumpTimer)
        return
      }

      clearInterval(jumpTimer)
      const destination = firstLink.href
      if (!destination || destination === location.href) return
      location.assign(destination)
    }, 250)
  }

  function init() {
    const isExoticaz = location.hostname === 'exoticaz.to'
    const isMissav = /(^|\.)missav\.(ws|live)$/.test(location.hostname)

    handleAutoJump()

    if (isExoticaz) {
      const isDetailPage = /https:\/\/exoticaz\.to\/torrent\/\d+/.test(
        location.href
      )
      if (isDetailPage) {
        handleDetailPage()
      } else {
        handleListPage()

        // Throttled observer to prevent excessive function calls
        let observerTimeout
        const throttledHandleListPage = () => {
          clearTimeout(observerTimeout)
          observerTimeout = setTimeout(handleListPage, 250) // Wait 250ms before processing
        }

        const observer = new MutationObserver(throttledHandleListPage)
        observer.observe(document.body, {
          childList: true,
          subtree: true,
          // Only observe specific changes to reduce overhead
          attributeFilter: ['class', 'data-search-processed'],
        })
      }
    } else if (isMissav) {
      handleMissavPage()

      let observerTimeout
      const throttledHandleMissavPage = () => {
        clearTimeout(observerTimeout)
        observerTimeout = setTimeout(handleMissavPage, 250)
      }

      const observer = new MutationObserver(throttledHandleMissavPage)
      observer.observe(document.body, {
        childList: true,
        subtree: true,
      })
    }
  }

  // Use both DOMContentLoaded and load events for better reliability
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', () => {
      // Small delay to ensure page is fully rendered
      setTimeout(init, 100)
    })
  } else {
    setTimeout(init, 100)
  }

  // Backup initialization on window load
  window.addEventListener('load', () => {
    setTimeout(init, 200)
  })
})()