import { Popover } from '@headlessui/react'
import { ActionButton } from './ActionButton'
import { faBars, faGear, faSignOutAlt } from '@fortawesome/free-solid-svg-icons'
import { faGithub } from '@fortawesome/free-brands-svg-icons'
import { useNavigate } from 'react-router-dom'
import { useState } from 'react'
import { paths } from '../Router'
import makeUrlPathRelative from '../lib/makeUrlPathRelative'
import { useAuthMachine } from '../hooks/useAuthMachine'
import { Models } from '@kittycad/lib'

type User = Models['User_type']

const UserSidebarMenu = ({ user }: { user?: User }) => {
  const displayedName = getDisplayName(user)
  const [imageLoadFailed, setImageLoadFailed] = useState(false)
  const navigate = useNavigate()
  const [_, send] = useAuthMachine()

  // Fallback logic for displaying user's "name":
  // 1. user.name
  // 2. user.first_name + ' ' + user.last_name
  // 3. user.first_name
  // 4. user.email
  function getDisplayName(user?: User) {
    if (!user) return null
    if (user.name) return user.name
    if (user.first_name) {
      if (user.last_name) return user.first_name + ' ' + user.last_name
      return user.first_name
    }
    return user.email
  }

  return (
    <Popover className="relative">
      {user?.image && !imageLoadFailed ? (
        <Popover.Button
          className="border-0 rounded-full w-fit p-0 focus:outline-none group"
          data-testid="user-sidebar-toggle"
        >
          <div className="rounded-full border border-chalkboard-70/50 hover:border-liquid-50 group-focus:border-liquid-50 overflow-hidden">
            <img
              src={user?.image || ''}
              alt={user?.name || ''}
              className="h-8 w-8"
              referrerPolicy="no-referrer"
              onError={() => setImageLoadFailed(true)}
            />
          </div>
        </Popover.Button>
      ) : (
        <ActionButton
          Element={Popover.Button}
          icon={{ icon: faBars }}
          className="border-transparent"
          data-testid="user-sidebar-toggle"
        >
          Menu
        </ActionButton>
      )}
      <Popover.Overlay className="fixed z-20 inset-0 bg-chalkboard-110/50" />

      <Popover.Panel className="fixed inset-0 left-auto z-30 w-64 bg-chalkboard-10 dark:bg-chalkboard-100 border border-liquid-100 shadow-md rounded-l-lg overflow-hidden">
        {({ close }) => (
          <>
            {user && (
              <div className="flex items-center gap-4 px-4 py-3 bg-liquid-100">
                {user.image && !imageLoadFailed && (
                  <div className="rounded-full shadow-inner overflow-hidden">
                    <img
                      src={user.image}
                      alt={user.name || ''}
                      className="h-8 w-8"
                      referrerPolicy="no-referrer"
                      onError={() => setImageLoadFailed(true)}
                    />
                  </div>
                )}

                <div>
                  <p
                    className="m-0 text-liquid-10 text-mono"
                    data-testid="username"
                  >
                    {displayedName || ''}
                  </p>
                  {displayedName !== user.email && (
                    <p
                      className="m-0 text-liquid-40 text-xs"
                      data-testid="email"
                    >
                      {user.email}
                    </p>
                  )}
                </div>
              </div>
            )}
            <div className="p-4 flex flex-col gap-2">
              <ActionButton
                Element="button"
                icon={{ icon: faGear }}
                className="border-transparent dark:border-transparent dark:hover:border-liquid-60"
                onClick={() => {
                  // since /settings is a nested route the sidebar doesn't close
                  // automatically when navigating to it
                  close()
                  navigate(makeUrlPathRelative(paths.SETTINGS))
                }}
              >
                Settings
              </ActionButton>
              <ActionButton
                Element="link"
                to="https://github.com/KittyCAD/modeling-app/discussions"
                icon={{ icon: faGithub }}
                className="border-transparent dark:border-transparent dark:hover:border-liquid-60"
              >
                Request a feature
              </ActionButton>
              <ActionButton
                Element="button"
                onClick={() => send('logout')}
                icon={{
                  icon: faSignOutAlt,
                  bgClassName: 'bg-destroy-80',
                  iconClassName:
                    'text-destroy-20 group-hover:text-destroy-10 hover:text-destroy-10',
                }}
                className="border-transparent dark:border-transparent hover:border-destroy-40 dark:hover:border-destroy-60"
              >
                Sign out
              </ActionButton>
            </div>
          </>
        )}
      </Popover.Panel>
    </Popover>
  )
}

export default UserSidebarMenu