const siteHeader = document.getElementById('siteHeader')
const mainNavbar = document.getElementById('mainNavbar')
const navbarToggler = document.querySelector('.navbar-toggler')
const siteLogoImg = document.getElementById('siteLogoImg')
const navMode = siteHeader?.dataset?.navMode || 'inner'
const isHomeNav = navMode === 'home'
const bootstrapCollapse = mainNavbar && window.bootstrap ? new bootstrap.Collapse(mainNavbar, { toggle: false }) : null

const setHeroHeaderTheme = (isDark) => {
  if (!siteHeader) return
  siteHeader.classList.remove('hero-theme-light', 'hero-theme-dark')
  siteHeader.classList.add(isDark ? 'hero-theme-dark' : 'hero-theme-light')
  if (siteLogoImg) {
    const lightLogo = siteLogoImg.getAttribute('data-logo-light') || '/assets/xtu/vendor/img/XTU-logo.png'
    const darkLogo = siteLogoImg.getAttribute('data-logo-dark') || '/assets/xtu/vendor/img/XTU-logo2.png'
    siteLogoImg.src = isDark ? darkLogo : lightLogo
  }
}

const syncHeroHeaderThemeFromSlide = () => {
  if (!siteHeader || siteHeader.classList.contains('scrolled') || siteHeader.classList.contains('menu-open') || siteHeader.classList.contains('header-search-open')) return
  const activeSlide = document.querySelector('#heroSwiper .swiper-slide-active[data-is-b], #heroSwiper .swiper-slide[data-swiper-slide-index][data-is-b].swiper-slide-active') || document.querySelector('#heroSwiper .swiper-slide[data-is-b]')
  const isB = activeSlide ? String(activeSlide.getAttribute('data-is-b') || '0') : '0'
  setHeroHeaderTheme(isB === '1')
}

const syncHeaderState = () => {
  const menuOpen = !!mainNavbar?.classList.contains('show')
  if (siteHeader) siteHeader.classList.toggle('menu-open', menuOpen)
  if (navbarToggler) navbarToggler.setAttribute('aria-expanded', menuOpen ? 'true' : 'false')
}

const onScroll = () => {
  if (!siteHeader || !isHomeNav || siteHeader.classList.contains('page-navbar-solid') || siteHeader.classList.contains('header-search-open')) return
  if (window.scrollY > 30) {
    siteHeader.classList.add('scrolled')
    setHeroHeaderTheme(true)
  } else if (!siteHeader.classList.contains('menu-open')) {
    siteHeader.classList.remove('scrolled')
    syncHeroHeaderThemeFromSlide()
  }
}

if (isHomeNav) {
  window.addEventListener('scroll', onScroll)
  onScroll()
} else {
  siteHeader?.classList.add('scrolled')
  setHeroHeaderTheme(true)
}

mainNavbar?.addEventListener('show.bs.collapse', () => {
  siteHeader?.classList.add('menu-open', 'scrolled')
  setHeroHeaderTheme(true)
  document.body.classList.add('modal-open')
  syncHeaderState()
})

mainNavbar?.addEventListener('hide.bs.collapse', () => {
  siteHeader?.classList.remove('menu-open')
  document.body.classList.remove('modal-open')
  syncHeaderState()
  onScroll()
})

mainNavbar?.addEventListener('shown.bs.collapse', syncHeaderState)
mainNavbar?.addEventListener('hidden.bs.collapse', syncHeaderState)

mainNavbar?.querySelectorAll('.nav-link:not(.dropdown-toggle), .dropdown-item').forEach((link) => {
  link.addEventListener('click', () => {
    if (window.innerWidth < 992 && mainNavbar.classList.contains('show')) bootstrapCollapse?.hide()
  })
})

if (mainNavbar && window.bootstrap) {
  mainNavbar.querySelectorAll('.nav-item.dropdown').forEach((item) => {
    const toggle = item.querySelector(':scope > .dropdown-toggle')
    const menu = item.querySelector(':scope > .dropdown-menu')
    if (!toggle || !menu) return

    const dropdownInstance = bootstrap.Dropdown.getOrCreateInstance(toggle, { autoClose: true })
    let hideTimer = null

    const clearHideTimer = () => {
      if (hideTimer) {
        clearTimeout(hideTimer)
        hideTimer = null
      }
    }

    const showDesktopDropdown = () => {
      if (window.innerWidth < 992 || siteHeader?.classList.contains('header-search-open')) return
      clearHideTimer()
      item.classList.add('show')
      toggle.classList.add('show')
      toggle.setAttribute('aria-expanded', 'true')
      menu.classList.add('show')
      dropdownInstance.show()
    }

    const hideDesktopDropdown = () => {
      if (window.innerWidth < 992) return
      clearHideTimer()
      item.classList.remove('show')
      toggle.classList.remove('show')
      toggle.setAttribute('aria-expanded', 'false')
      menu.classList.remove('show')
      dropdownInstance.hide()
    }

    const scheduleHideDesktopDropdown = () => {
      if (window.innerWidth < 992) return
      clearHideTimer()
      hideTimer = setTimeout(() => hideDesktopDropdown(), 120)
    }

    toggle.removeAttribute('data-bs-toggle')
    item.addEventListener('mouseenter', showDesktopDropdown)
    item.addEventListener('mouseleave', scheduleHideDesktopDropdown)
    menu.addEventListener('mouseenter', showDesktopDropdown)
    menu.addEventListener('mouseleave', scheduleHideDesktopDropdown)
    toggle.addEventListener('focus', showDesktopDropdown)
    item.addEventListener('focusout', () => {
      setTimeout(() => {
        if (!item.contains(document.activeElement)) scheduleHideDesktopDropdown()
      }, 0)
    })
    toggle.addEventListener('click', (e) => {
      if (window.innerWidth >= 992) {
        const href = toggle.getAttribute('href') || ''
        if (!href || href === '#') e.preventDefault()
      }
    })

    window.addEventListener('resize', () => {
      if (window.innerWidth < 992) {
        clearHideTimer()
        hideDesktopDropdown()
        toggle.setAttribute('data-bs-toggle', 'dropdown')
      } else {
        toggle.removeAttribute('data-bs-toggle')
      }
    })
  })
}

const openModal = (id) => {
  const modal = document.getElementById(id)
  if (!modal) return
  modal.classList.add('is-open')
  document.body.classList.add('modal-open')
}

const closeModal = (id) => {
  const modal = document.getElementById(id)
  if (!modal) return
  modal.classList.remove('is-open')
  if (!document.querySelector('.custom-modal.is-open') && !mainNavbar?.classList.contains('show')) document.body.classList.remove('modal-open')
}

document.getElementById('openLanguageModal')?.addEventListener('click', () => openModal('languageModal'))
document.getElementById('openLanguageModalMobile')?.addEventListener('click', () => openModal('languageModal'))
document.getElementById('openLanguageModalFooter')?.addEventListener('click', () => openModal('languageModal'))
document.querySelectorAll('[data-close-modal]').forEach((btn) => btn.addEventListener('click', () => closeModal(btn.dataset.closeModal)))

document.querySelectorAll('.custom-modal').forEach((modal) => {
  modal.addEventListener('click', (e) => {
    if (e.target === modal) closeModal(modal.id)
  })
})

const headerInlineSearch = document.getElementById('headerInlineSearch')
const openHeaderSearchBtn = document.getElementById('openHeaderSearch')
const closeHeaderSearchBtn = document.getElementById('closeHeaderSearch')
const headerInlineSearchInput = document.getElementById('headerInlineSearchInput')
const headerInlineSearchForm = document.getElementById('headerInlineSearchForm')

const openHeaderSearch = () => {
  if (!headerInlineSearch || window.innerWidth < 992) return
  siteHeader?.classList.add('header-search-open', 'scrolled')
  setHeroHeaderTheme(true)
  headerInlineSearch.classList.add('is-open')
  headerInlineSearch.setAttribute('aria-hidden', 'false')
  document.body.classList.add('modal-open')
  setTimeout(() => {
    headerInlineSearchInput?.focus()
    if (headerInlineSearchInput?.value) {
      headerInlineSearchInput.setSelectionRange(0, headerInlineSearchInput.value.length)
    }
  }, 60)
}

const closeHeaderSearch = () => {
  if (!headerInlineSearch) return
  siteHeader?.classList.remove('header-search-open')
  headerInlineSearch.classList.remove('is-open')
  headerInlineSearch.setAttribute('aria-hidden', 'true')
  headerInlineSearchInput?.blur()
  if (!mainNavbar?.classList.contains('show')) document.body.classList.remove('modal-open')
  if (isHomeNav) {
    onScroll()
    if (window.scrollY <= 30 && !mainNavbar?.classList.contains('show')) syncHeroHeaderThemeFromSlide()
  }
}

openHeaderSearchBtn?.addEventListener('click', (e) => {
  e.preventDefault()
  e.stopPropagation()
  openHeaderSearch()
})

closeHeaderSearchBtn?.addEventListener('click', (e) => {
  e.preventDefault()
  e.stopPropagation()
  closeHeaderSearch()
})

document.getElementById('openSearchModalMobile')?.addEventListener('click', () => {
  window.location.href = '/search'
})

headerInlineSearchForm?.addEventListener('submit', (e) => {
  const keyword = (headerInlineSearchInput?.value || '').trim()
  if (!keyword) {
    e.preventDefault()
    headerInlineSearchInput?.focus()
    headerInlineSearchInput?.setCustomValidity(document.documentElement.lang === 'en' ? 'Please enter a keyword' : '请输入搜索关键词')
    headerInlineSearchInput?.reportValidity()
    return
  }
  headerInlineSearchInput?.setCustomValidity('')
})

headerInlineSearchInput?.addEventListener('input', (e) => {
  e.target.setCustomValidity('')
})

document.addEventListener('keydown', (e) => {
  if (e.key === 'Escape' && headerInlineSearch?.classList.contains('is-open')) closeHeaderSearch()
})

document.querySelectorAll('.footer-social-item').forEach((item) => {
  const closeAll = () => document.querySelectorAll('.footer-social-item.is-open').forEach((el) => el.classList.remove('is-open'))
  item.addEventListener('mouseenter', () => item.classList.add('is-open'))
  item.addEventListener('mouseleave', () => item.classList.remove('is-open'))
  item.addEventListener('click', (e) => {
    if (window.matchMedia('(hover: none)').matches) {
      e.preventDefault()
      const willOpen = !item.classList.contains('is-open')
      closeAll()
      if (willOpen) item.classList.add('is-open')
    }
  })
  item.addEventListener('focusin', () => item.classList.add('is-open'))
  item.addEventListener('focusout', () => item.classList.remove('is-open'))
  document.addEventListener('click', (e) => {
    if (!item.contains(e.target)) item.classList.remove('is-open')
  })
})

const resetSlideVideos = (selector) => {
  document.querySelectorAll(selector).forEach((video) => {
    try { video.pause(); video.currentTime = 0 } catch {}
    video.classList.remove('is-ready')
  })
}

const playSlideVideo = (slide) => {
  if (!slide) return
  const video = slide.querySelector('.slide-video')
  if (!video) return
  const showVideo = () => video.classList.add('is-ready')
  if (video.readyState >= 2) {
    showVideo()
  } else {
    video.addEventListener('loadeddata', showVideo, { once: true })
    video.addEventListener('canplay', showVideo, { once: true })
  }
  video.play().then(showVideo).catch(() => {})
}

document.querySelectorAll('.slide-media-layer, .card-media-layer').forEach((wrap) => {
  wrap.addEventListener('click', () => {
    playSlideVideo(wrap.closest('.swiper-slide') || wrap)
  })
})

if (document.querySelector('#heroSwiper') && window.Swiper) {
  const heroSlides = Array.from(document.querySelectorAll('#heroSwiper .swiper-slide[data-bullet-title]'))
  const heroBulletTitles = heroSlides.map((slide) => slide.getAttribute('data-bullet-title') || '')

  new Swiper('#heroSwiper', {
    loop: true,
    speed: 900,
    effect: 'fade',
    fadeEffect: { crossFade: true },
    autoplay: { delay: 5000, disableOnInteraction: false },
    navigation: { nextEl: '.hero-next', prevEl: '.hero-prev' },
    pagination: {
      el: '.hero-pagination',
      clickable: true,
      renderBullet: function (index, className) {
        return `<span class="${className} hero-bar-bullet"><em>${heroBulletTitles[index] || ''}</em></span>`
      },
    },
    on: {
      init(swiper) {
        syncHeroHeaderThemeFromSlide()
        playSlideVideo(swiper.slides[swiper.activeIndex])
      },
      slideChangeTransitionStart: () => {
        resetSlideVideos('#heroSwiper .slide-video')
        syncHeroHeaderThemeFromSlide()
      },
      slideChangeTransitionEnd(swiper) {
        playSlideVideo(swiper.slides[swiper.activeIndex])
      }
    },
  })
  syncHeroHeaderThemeFromSlide()
}

if (document.querySelector('#showcaseSwiper') && window.Swiper) {
  const showcaseEl = document.querySelector('#showcaseSwiper')
  const showcaseWrapper = showcaseEl ? showcaseEl.querySelector('.swiper-wrapper') : null

  if (showcaseWrapper) {
    const originalSlides = Array.from(showcaseWrapper.querySelectorAll('.swiper-slide'))
    if (originalSlides.length > 0 && originalSlides.length < 4) {
      let i = 0
      while (showcaseWrapper.querySelectorAll('.swiper-slide').length < 4) {
        const clone = originalSlides[i % originalSlides.length].cloneNode(true)
        clone.classList.add('showcase-card-fill-js')
        showcaseWrapper.appendChild(clone)
        i++
      }
    }
  }

  new Swiper('#showcaseSwiper', {
    loop: false,
    rewind: true,
    speed: 800,
    centeredSlides: false,
    watchOverflow: false,
    slidesPerView: 1.08,
    spaceBetween: 12,
    autoplay: {
      delay: 4500,
      disableOnInteraction: false,
      pauseOnMouseEnter: true
    },
    navigation: {
      nextEl: '.showcase-next',
      prevEl: '.showcase-prev'
    },
    pagination: {
      el: '.showcase-pagination',
      clickable: true
    },
    breakpoints: {
      768: {
        slidesPerView: 1.3,
        spaceBetween: 12
      },
      992: {
        slidesPerView: 2,
        spaceBetween: 12
      }
    },
    on: {
      init(swiper) {
        const bullets = swiper.pagination && swiper.pagination.bullets ? swiper.pagination.bullets : []
        bullets.forEach((bullet, index) => {
          bullet.style.setProperty('--showcase-progress-delay', index === swiper.activeIndex ? '0ms' : '0ms')
        })
      },
      slideChangeTransitionStart(swiper) {
        resetSlideVideos('#showcaseSwiper .slide-video')
        const bullets = swiper.pagination && swiper.pagination.bullets ? swiper.pagination.bullets : []
        bullets.forEach((bullet) => {
          bullet.style.animation = 'none'
          void bullet.offsetWidth
          bullet.style.animation = ''
        })
      }
    }
  })
}

const backToTopBtn = document.getElementById('backToTopBtn')
const backToTopShowOffset = 320
const feedbackFloatForm = document.getElementById('feedbackFloatForm')
const feedbackFloatRatingInput = document.getElementById('feedbackFloatRating')
const feedbackFloatSubmit = document.getElementById('feedbackFloatSubmit')
const feedbackFloatOptions = document.querySelectorAll('.feedback-float-option')
const feedbackFloatPrompt = document.querySelector('.feedback-float-rating-block h3')
const feedbackFloatMessage = document.getElementById('feedbackFloatMessage')
const feedbackSourcePageInput = feedbackFloatForm?.querySelector('input[name="source_page"]')
const feedbackStars = Array.from(document.querySelectorAll('.feedback-star'))

const feedbackPromptMap = {
  website: '请对“官网体验”进行评价。',
  service: '请对“服务体验”进行评价。',
  product: '请对“产品体验”进行评价。'
}

const syncFeedbackPrompt = (value) => {
  const key = value || 'website'
  if (feedbackFloatPrompt && feedbackPromptMap[key]) feedbackFloatPrompt.textContent = feedbackPromptMap[key]
}

const setFeedbackMessage = (text, type = '') => {
  if (!feedbackFloatMessage) return
  feedbackFloatMessage.textContent = text || ''
  feedbackFloatMessage.className = 'feedback-float-message' + (type ? ` is-${type}` : '')
}

const syncBackToTopVisibility = () => {
  if (!backToTopBtn) return
  const isVisible = window.scrollY > backToTopShowOffset
  backToTopBtn.classList.toggle('is-visible', isVisible)
}

backToTopBtn?.addEventListener('click', () => {
  window.scrollTo({ top: 0, behavior: 'smooth' })
})

window.addEventListener('scroll', syncBackToTopVisibility, { passive: true })
syncBackToTopVisibility()

const setFeedbackRating = (value) => {
  const rating = Number(value) || 0
  if (feedbackFloatRatingInput) feedbackFloatRatingInput.value = String(rating)
  feedbackStars.forEach((star) => {
    const starValue = Number(star.dataset.value || 0)
    star.classList.toggle('is-active', starValue <= rating)
  })
  if (feedbackFloatSubmit) feedbackFloatSubmit.disabled = rating < 1
}

feedbackStars.forEach((star) => {
  star.addEventListener('click', () => setFeedbackRating(star.dataset.value || 0))
})

feedbackFloatOptions.forEach((item) => {
  const input = item.querySelector('input[type="radio"]')
  input?.addEventListener('change', () => {
    feedbackFloatOptions.forEach((node) => node.classList.remove('is-active'))
    item.classList.add('is-active')
    const value = input.value || 'website'
    syncFeedbackPrompt(value)
    setFeedbackRating(0)
    setFeedbackMessage('')
  })
})

if (feedbackSourcePageInput) feedbackSourcePageInput.value = window.location.href
syncFeedbackPrompt(document.querySelector('.feedback-float-option input[type="radio"]:checked')?.value || 'website')

feedbackFloatForm?.addEventListener('submit', async (e) => {
  e.preventDefault()
  const rating = Number(feedbackFloatRatingInput?.value || 0) || 0
  if (rating < 1) return

  const submitUrl = feedbackFloatForm.dataset.submitUrl || ''
  if (!submitUrl) {
    setFeedbackMessage('提交地址缺失', 'error')
    return
  }

  const originalText = feedbackFloatSubmit?.textContent || '提交'
  if (feedbackFloatSubmit) {
    feedbackFloatSubmit.disabled = true
    feedbackFloatSubmit.textContent = '提交中...'
  }
  setFeedbackMessage('')

  try {
    const body = new URLSearchParams(new FormData(feedbackFloatForm))
    const res = await fetch(submitUrl, {
      method: 'POST',
      headers: {
        'X-Requested-With': 'XMLHttpRequest',
        'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
      },
      body: body.toString()
    })
    const data = await res.json()
    if (data.code === 1) {
      setFeedbackMessage(data.msg || '提交成功，感谢你的评价', 'success')
      feedbackFloatForm.reset()
      feedbackFloatOptions.forEach((node, index) => node.classList.toggle('is-active', index === 0))
      syncFeedbackPrompt('website')
      setFeedbackRating(0)
    } else {
      setFeedbackMessage(data.msg || '提交失败，请稍后再试', 'error')
      if (feedbackFloatSubmit) feedbackFloatSubmit.disabled = rating < 1
    }
  } catch (err) {
    setFeedbackMessage('提交失败，请稍后再试', 'error')
    if (feedbackFloatSubmit) feedbackFloatSubmit.disabled = rating < 1
  } finally {
    if (feedbackFloatSubmit) feedbackFloatSubmit.textContent = originalText
  }
})