import type { RegisterClientOptions } from '@peertube/peertube-types/client'
import type { InitConverseJSParams } from 'shared/lib/types'
import { renderConfigurationHome } from './templates/home'
import { renderConfigurationChannel } from './templates/channel'
import { getBaseRoute } from '../../utils/uri'
import { loadConverseJS } from '../../utils/conversejs'

/**
 * Registers stuff related to the user's configuration pages.
 * @param clientOptions Peertube client options
 */
async function registerConfiguration (clientOptions: RegisterClientOptions): Promise<void> {
  const { peertubeHelpers, registerClientRoute, registerHook } = clientOptions

  const settings = await peertubeHelpers.getSettings()
  if (settings['disable-channel-configuration']) { return }

  registerClientRoute({
    route: 'livechat/room',
    onMount: async ({ rootEl }) => {
      try {
        const urlParams = new URLSearchParams(window.location.search)
        const roomKey = urlParams.get('room')
        if (!roomKey) {
          throw new Error('missing room parameter')
        }

        const response = await fetch(
          getBaseRoute(clientOptions) + '/api/configuration/room/' + encodeURIComponent(roomKey),
          {
            method: 'GET',
            headers: peertubeHelpers.getAuthHeader()
          }
        )
        if (!response.ok) {
          throw new Error('Can\'t get channel configuration options.')
        }

        const converseJSParams: InitConverseJSParams = await (response).json()
        await loadConverseJS(converseJSParams)

        rootEl.innerHTML = `<div class="converse-fullscreen theme-peertube">
          <div id="conversejs-bg" class="theme-peertube">
        </div>`

        window.initConverse(converseJSParams)
      } catch (err) {
        console.error('[peertube-plugin-livechat] ' + (err as string))
        rootEl.innerText = await peertubeHelpers.translate(LOC_NOT_FOUND)
      }
    }
  })

  registerClientRoute({
    route: 'livechat/configuration',
    onMount: async ({ rootEl }) => {
      rootEl.innerHTML = await renderConfigurationHome(clientOptions)
    }
  })

  registerClientRoute({
    route: 'livechat/configuration/channel',
    onMount: async ({ rootEl }) => {
      const urlParams = new URLSearchParams(window.location.search)
      const channelId = urlParams.get('channelId') ?? ''
      await renderConfigurationChannel(clientOptions, channelId, rootEl)
    }
  })

  registerHook({
    target: 'filter:left-menu.links.create.result',
    handler: async (links: any) => {
      // Adding the links to livechat/configuration for logged users.
      if (!peertubeHelpers.isLoggedIn()) { return links }

      if (!Array.isArray(links)) { return links }
      let myLibraryLinks
      // Searching the 'in-my-library' entry.
      for (const link of links) {
        if (typeof link !== 'object') { continue }
        if (!('key' in link)) { continue }
        if (link.key !== 'in-my-library') { continue }
        myLibraryLinks = link
        break
      }
      if (!myLibraryLinks) { return links }
      if (!Array.isArray(myLibraryLinks.links)) { return links }

      const label = await peertubeHelpers.translate(LOC_MENU_CONFIGURATION_LABEL)
      myLibraryLinks.links.push({
        label,
        shortLabel: label,
        path: '/p/livechat/configuration',
        icon: 'live'
      })
      return links
    }
  })
}

export {
  registerConfiguration
}