flotilla/src/app/components/RoomMembers.svelte

<script lang="ts">
  import {first, sortBy} from "@welshman/lib"
  import {waitForThunkError, removeRoomMember} from "@welshman/app"
  import MenuDots from "@assets/icons/menu-dots.svg?dataurl"
  import MinusCircle from "@assets/icons/minus-circle.svg?dataurl"
  import AddCircle from "@assets/icons/add-circle.svg?dataurl"
  import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
  import {fly} from "@lib/transition"
  import Button from "@lib/components/Button.svelte"
  import Icon from "@lib/components/Icon.svelte"
  import Popover from "@lib/components/Popover.svelte"
  import Confirm from "@lib/components/Confirm.svelte"
  import Modal from "@lib/components/Modal.svelte"
  import ModalBody from "@lib/components/ModalBody.svelte"
  import ModalFooter from "@lib/components/ModalFooter.svelte"
  import ModalHeader from "@lib/components/ModalHeader.svelte"
  import ModalTitle from "@lib/components/ModalTitle.svelte"
  import ModalSubtitle from "@lib/components/ModalSubtitle.svelte"
  import Profile from "@app/components/Profile.svelte"
  import RoleBadge from "@app/components/RoleBadge.svelte"
  import RoomName from "@app/components/RoomName.svelte"
  import RoomMembersAdd from "@app/components/RoomMembersAdd.svelte"
  import type {RoomMember} from "@app/core/roles"
  import {deriveRoom, deriveRoomMembers} from "@app/core/state"
  import {deriveRoomRoles, hasPermission} from "@app/core/roles"
  import {pushModal} from "@app/util/modal"
  import {pushToast} from "@app/util/toast"

  interface Props {
    url: string
    h: string
  }

  const {url, h}: Props = $props()

  const room = deriveRoom(url, h)
  const members = deriveRoomMembers(url, h)
  const roomRoles = deriveRoomRoles(url, h)
  const canAddMembers = hasPermission(url, h, 9000)
  const canRemoveMembers = hasPermission(url, h, 9001)

  const back = () => history.back()

  const toggleMenu = (pubkey: string) => {
    menuPubkey = menuPubkey === pubkey ? undefined : pubkey
  }

  const closeMenu = () => {
    menuPubkey = undefined
  }

  const getResolvedRoles = (member: RoomMember) =>
    removeUndefined(member.roles.map(roleName => $roomRoles.roles.get(roleName)))

  const getPrimaryRole = (member: RoomMember) =>
    first(sortBy(role => -(role.order ?? -Infinity), getResolvedRoles(member)))

  const memberGroups = $derived.by(() => {
    const byRole = new Map<
      string,
      {
        key: string
        label: string
        color?: number
        order?: number
        members: RoomMember[]
      }
    >()
    const defaultGroup = {
      key: "members",
      label: "Members",
      members: [] as RoomMember[],
    }

    for (const member of $members) {
      const primaryRole = getPrimaryRole(member)

      if (!primaryRole) {
        defaultGroup.members.push(member)
        continue
      }

      if (!byRole.has(primaryRole.name)) {
        byRole.set(primaryRole.name, {
          key: primaryRole.name,
          label: primaryRole.label || primaryRole.name,
          color: primaryRole.color,
          order: primaryRole.order,
          members: [],
        })
      }

      byRole.get(primaryRole.name)!.members.push(member)
    }

    const groups = sortBy(group => -(group.order ?? -Infinity), Array.from(byRole.values()))

    if (defaultGroup.members.length > 0) {
      groups.push(defaultGroup)
    }

    return groups
  })

  const removeUndefined = <T,>(items: Array<T | undefined>): T[] =>
    items.filter((item): item is T => item !== undefined)

  const addMember = () => pushModal(RoomMembersAdd, {url, h})

  const removeMember = (pubkey: string) =>
    pushModal(Confirm, {
      title: "Remove Member",
      message: "Are you sure you want to remove this user from the room?",
      confirm: async () => {
        const error = await waitForThunkError(removeRoomMember(url, $room, pubkey))

        if (error) {
          pushToast({theme: "error", message: error})
        } else {
          pushToast({message: "Member has successfully been removed!"})
          back()
        }
      },
    })

  let menuPubkey = $state<string | undefined>()
</script>

<Modal>
  <ModalBody>
    <ModalHeader>
      <ModalTitle>Members</ModalTitle>
      <ModalSubtitle>
        of <RoomName {url} {h} class="text-primary" />
      </ModalSubtitle>
    </ModalHeader>
    <div class="flex flex-col gap-2">
      {#if $members === undefined}
        <div class="card2 bg-base-200 p-4">
          <span class="text-error">Member list not available from this relay</span>
        </div>
      {:else if $members.length === 0}
        <div class="card2 bg-base-200 p-4">
          <span class="text-base-content/70">No members yet</span>
        </div>
      {:else}
        {#each memberGroups as group (group.key)}
          <div class="pt-2 pb-1">
            {#if group.color !== undefined}
              <RoleBadge
                role={group.key}
                label={group.label}
                color={group.color}
                class="badge-md" />
            {:else}
              <span class="text-sm font-semibold opacity-75">{group.label}</span>
            {/if}
          </div>
          {#each group.members as member (member.pubkey)}
            <div class="card2 bg-alt relative">
              <div class="flex items-center justify-between gap-2">
                <div class="min-w-0 flex-1">
                  <Profile pubkey={member.pubkey} {url} />
                  {#if getResolvedRoles(member).length > 0}
                    <div class="mt-1 flex flex-wrap gap-1">
                      {#each getResolvedRoles(member) as role (role.name)}
                        <RoleBadge role={role.name} label={role.label} color={role.color} />
                      {/each}
                    </div>
                  {/if}
                </div>
                {#if $canRemoveMembers}
                  <div class="relative">
                    <Button
                      class="btn btn-circle btn-ghost btn-sm"
                      onclick={() => toggleMenu(member.pubkey)}>
                      <Icon icon={MenuDots} />
                    </Button>
                    {#if menuPubkey === member.pubkey}
                      <Popover hideOnClick onClose={closeMenu}>
                        <ul
                          transition:fly
                          class="menu absolute right-0 z-popover mt-2 w-48 gap-1 rounded-box bg-base-100 p-2 shadow-md">
                          <li>
                            <Button class="text-error" onclick={() => removeMember(member.pubkey)}>
                              <Icon icon={MinusCircle} />
                              Remove Member
                            </Button>
                          </li>
                        </ul>
                      </Popover>
                    {/if}
                  </div>
                {/if}
              </div>
            </div>
          {/each}
        {/each}
      {/if}
    </div>
  </ModalBody>
  <ModalFooter>
    <Button class="btn btn-link" onclick={back}>
      <Icon icon={AltArrowLeft} />
      Go back
    </Button>
    {#if $canAddMembers}
      <Button class="btn btn-primary" onclick={addMember}>
        <Icon icon={AddCircle} />
        Add members
      </Button>
    {/if}
  </ModalFooter>
</Modal>