//- Knocket live chat — https://trtc.io/solutions/knocket
script.
  (() => {
    const identifier = !{JSON.stringify(theme.knocket.identifier || '').replace(/</g, '\\u003c')}
    if (!identifier) return

    btf.getScript(`https://trtc.io/knocket-sdk/sdk.js?identifier=${encodeURIComponent(identifier)}`).then(() => {
      const isChatBtn = !{theme.chat.rightside_button}
      const isChatHideShow = !{theme.chat.button_hide_show}

      let widget = null
      const getWidget = () => widget || (widget = document.getElementById('contact-widget-auto'))

      if (isChatBtn) {
        const hide = () => { const w = getWidget(); if (w) w.style.display = 'none' }
        const show = () => { const w = getWidget(); if (w) w.style.display = '' }

        // Hide the native Knocket floating button
        const observer = new MutationObserver(() => {
          if (getWidget()) { hide(); observer.disconnect() }
        })
        observer.observe(document.body, { childList: true, subtree: true })
        hide()

        window.chatBtnFn = () => {
          const w = getWidget()
          if (!w) return
          w.style.display = w.style.display === 'none' ? '' : 'none'
        }

        const chatBtn = document.getElementById('chat-btn')
        if (chatBtn) chatBtn.style.display = 'block'
      } else if (isChatHideShow) {
        window.chatBtn = {
          hide: () => { const w = getWidget(); if (w) w.style.display = 'none' },
          show: () => { const w = getWidget(); if (w) w.style.display = '' }
        }
      }
    }).catch(error => {
      console.warn('[Knocket] Failed to load the chat SDK.', error)
    })
  })()