<script lang="ts">
  import AlbumSharedLink from '$lib/components/album-page/album-shared-link.svelte';
  import Dropdown from '$lib/components/elements/dropdown.svelte';
  import Icon from '$lib/components/elements/icon.svelte';
  import FullScreenModal from '$lib/components/shared-components/full-screen-modal.svelte';
  import { AppRoute } from '$lib/constants';
  import {
    AlbumUserRole,
    getAllSharedLinks,
    searchUsers,
    type AlbumResponseDto,
    type AlbumUserAddDto,
    type SharedLinkResponseDto,
    type UserResponseDto,
  } from '@immich/sdk';
  import { Button, Link, Stack, Text } from '@immich/ui';
  import { mdiCheck, mdiEye, mdiLink, mdiPencil } from '@mdi/js';
  import { onMount } from 'svelte';
  import { t } from 'svelte-i18n';
  import UserAvatar from '../shared-components/user-avatar.svelte';

  interface Props {
    album: AlbumResponseDto;
    onClose: () => void;
    onSelect: (selectedUsers: AlbumUserAddDto[]) => void;
    onShare: () => void;
  }

  let { album, onClose, onSelect, onShare }: Props = $props();

  let users: UserResponseDto[] = $state([]);
  let selectedUsers: Record<string, { user: UserResponseDto; role: AlbumUserRole }> = $state({});

  const roleOptions: Array<{ title: string; value: AlbumUserRole | 'none'; icon?: string }> = [
    { title: $t('role_editor'), value: AlbumUserRole.Editor, icon: mdiPencil },
    { title: $t('role_viewer'), value: AlbumUserRole.Viewer, icon: mdiEye },
    { title: $t('remove_user'), value: 'none' },
  ];

  let sharedLinks: SharedLinkResponseDto[] = $state([]);
  onMount(async () => {
    sharedLinks = await getAllSharedLinks({ albumId: album.id });
    const data = await searchUsers();

    // remove album owner
    users = data.filter((user) => user.id !== album.ownerId);

    // Remove the existed shared users from the album
    for (const sharedUser of album.albumUsers) {
      users = users.filter((user) => user.id !== sharedUser.user.id);
    }
  });

  const handleToggle = (user: UserResponseDto) => {
    if (Object.keys(selectedUsers).includes(user.id)) {
      delete selectedUsers[user.id];
    } else {
      selectedUsers[user.id] = { user, role: AlbumUserRole.Editor };
    }
  };

  const handleChangeRole = (user: UserResponseDto, role: AlbumUserRole | 'none') => {
    if (role === 'none') {
      delete selectedUsers[user.id];
    } else {
      selectedUsers[user.id].role = role;
    }
  };
</script>

<FullScreenModal title={$t('share')} showLogo {onClose}>
  {#if Object.keys(selectedUsers).length > 0}
    <div class="mb-2 py-2 sticky">
      <p class="text-xs font-medium">{$t('selected')}</p>
      <div class="my-2">
        {#each Object.values(selectedUsers) as { user } (user.id)}
          {#key user.id}
            <div class="flex place-items-center gap-4 p-4">
              <div
                class="flex h-10 w-10 items-center justify-center rounded-full border bg-immich-dark-success text-3xl text-white dark:border-immich-dark-gray dark:bg-immich-dark-success"
              >
                <Icon path={mdiCheck} size={24} />
              </div>

              <!-- <UserAvatar {user} size="md" /> -->
              <div class="text-left flex-grow">
                <p class="text-immich-fg dark:text-immich-dark-fg">
                  {user.name}
                </p>
                <p class="text-xs">
                  {user.email}
                </p>
              </div>

              <Dropdown
                title={$t('role')}
                options={roleOptions}
                render={({ title, icon }) => ({ title, icon })}
                onSelect={({ value }) => handleChangeRole(user, value)}
              />
            </div>
          {/key}
        {/each}
      </div>
    </div>
  {/if}

  {#if users.length + Object.keys(selectedUsers).length === 0}
    <p class="p-5 text-sm">
      {$t('album_share_no_users')}
    </p>
  {/if}

  <div class="immich-scrollbar max-h-[500px] overflow-y-auto">
    {#if users.length > 0 && users.length !== Object.keys(selectedUsers).length}
      <Text>{$t('users')}</Text>

      <div class="my-2">
        {#each users as user (user.id)}
          {#if !Object.keys(selectedUsers).includes(user.id)}
            <div class="flex place-items-center transition-all hover:bg-gray-200 dark:hover:bg-gray-700 rounded-xl">
              <button type="button" onclick={() => handleToggle(user)} class="flex w-full place-items-center gap-4 p-4">
                <UserAvatar {user} size="md" />
                <div class="text-left flex-grow">
                  <p class="text-immich-fg dark:text-immich-dark-fg">
                    {user.name}
                  </p>
                  <p class="text-xs">
                    {user.email}
                  </p>
                </div>
              </button>
            </div>
          {/if}
        {/each}
      </div>
    {/if}
  </div>

  {#if users.length > 0}
    <div class="py-3">
      <Button
        size="small"
        fullWidth
        shape="round"
        disabled={Object.keys(selectedUsers).length === 0}
        onclick={() =>
          onSelect(Object.values(selectedUsers).map(({ user, ...rest }) => ({ userId: user.id, ...rest })))}
        >{$t('add')}</Button
      >
    </div>
  {/if}

  <hr class="my-4" />

  <Stack gap={6}>
    {#if sharedLinks.length > 0}
      <div class="flex justify-between items-center">
        <Text>{$t('shared_links')}</Text>
        <Link href={AppRoute.SHARED_LINKS} class="text-sm">{$t('view_all')}</Link>
      </div>

      <Stack gap={4}>
        {#each sharedLinks as sharedLink (sharedLink.id)}
          <AlbumSharedLink {album} {sharedLink} />
        {/each}
      </Stack>
    {/if}

    <Button leadingIcon={mdiLink} size="small" shape="round" fullWidth onclick={onShare}>{$t('create_link')}</Button>
  </Stack>
</FullScreenModal>
