flotilla/src/app/components/SpaceInviteAccept.svelte

<script lang="ts">
  import {dissoc} from "@welshman/lib"
  import {goto} from "$app/navigation"
  import {preventDefault} from "@lib/html"
  import {slideAndFade} from "@lib/transition"
  import Spinner from "@lib/components/Spinner.svelte"
  import Button from "@lib/components/Button.svelte"
  import Field from "@lib/components/Field.svelte"
  import LinkRound from "@assets/icons/link-round.svg?dataurl"
  import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
  import AltArrowRight from "@assets/icons/alt-arrow-right.svg?dataurl"
  import Icon from "@lib/components/Icon.svelte"
  import Modal from "@lib/components/Modal.svelte"
  import ModalBody from "@lib/components/ModalBody.svelte"
  import ModalHeader from "@lib/components/ModalHeader.svelte"
  import ModalTitle from "@lib/components/ModalTitle.svelte"
  import ModalSubtitle from "@lib/components/ModalSubtitle.svelte"
  import ModalFooter from "@lib/components/ModalFooter.svelte"
  import RelaySummary from "@app/components/RelaySummary.svelte"
  import {pushToast} from "@app/util/toast"
  import {makeSpacePath} from "@app/util/routes"
  import {relaysMostlyRestricted, parseInviteLink} from "@app/core/state"
  import {attemptRelayAccess, addSpaceMembership, broadcastUserData} from "@app/core/commands"

  type Props = {
    invite: string
    back?: () => void
  }

  let {invite = "", back = () => history.back()}: Props = $props()

  const joinRelay = async () => {
    const {url, claim} = inviteData!

    const error = await attemptRelayAccess(url, claim)

    if (error) {
      return pushToast({theme: "error", message: error, timeout: 30_000})
    }

    await addSpaceMembership(url)
    await goto(makeSpacePath(url), {replaceState: true})

    broadcastUserData([url])
    relaysMostlyRestricted.update(dissoc(url))
    pushToast({message: "Welcome to the space!"})
  }

  const join = async () => {
    loading = true

    try {
      await joinRelay()
    } finally {
      loading = false
    }
  }

  let loading = $state(false)

  const inviteData = $derived(parseInviteLink(invite))
</script>

<Modal tag="form" onsubmit={preventDefault(join)}>
  <ModalBody>
    <ModalHeader>
      <ModalTitle>Join a Space</ModalTitle>
      <ModalSubtitle
        >Enter a relay URL or invite link below to join an existing space.</ModalSubtitle>
    </ModalHeader>
    <Field>
      {#snippet label()}
        <p>Invite Link*</p>
      {/snippet}
      {#snippet input()}
        <label class="input input-bordered flex w-full items-center gap-2">
          <Icon icon={LinkRound} />
          <input bind:value={invite} class="grow" type="text" />
        </label>
      {/snippet}
    </Field>
    {#if inviteData}
      <div class="-my-4">
        <div transition:slideAndFade class="flex flex-col gap-4 py-4">
          <div class="card2 bg-alt flex flex-col gap-4">
            <p class="opacity-75">You're about to join:</p>
            <RelaySummary url={inviteData.url} />
          </div>
        </div>
      </div>
    {/if}
  </ModalBody>
  <ModalFooter>
    <Button class="btn btn-link" onclick={back}>
      <Icon icon={AltArrowLeft} />
      Go back
    </Button>
    <Button type="submit" class="btn btn-primary" disabled={!inviteData || loading}>
      <Spinner {loading}>Join Space</Spinner>
      <Icon icon={AltArrowRight} />
    </Button>
  </ModalFooter>
</Modal>