mitgliederverwaltung/lib/mv_web/live/group_live/show.ex

284 lines
9.6 KiB
Elixir

defmodule MvWeb.GroupLive.Show do
@moduledoc """
LiveView for displaying a single group's details.
## Features
- Display group information (name, description, member count)
- List all members in the group
- Navigate to edit form
- Return to groups list
- Delete group (with confirmation)
## Security
- All users with read permission can view groups
- Only admin users can edit/delete groups
"""
use MvWeb, :live_view
import MvWeb.LiveHelpers, only: [current_actor: 1]
import MvWeb.Authorization
alias Mv.Membership
@impl true
def mount(_params, _session, socket) do
{:ok, socket}
end
@impl true
def handle_params(%{"slug" => slug}, _url, socket) do
actor = current_actor(socket)
# Check if user can read groups
unless can?(actor, :read, Mv.Membership.Group) do
{:noreply, redirect(socket, to: ~p"/members")}
else
case Membership.get_group_by_slug(slug, actor: actor, load: [:members, :member_count]) do
{:ok, nil} ->
{:noreply,
socket
|> put_flash(:error, gettext("Group not found."))
|> redirect(to: ~p"/groups")}
{:ok, group} ->
{:noreply,
socket
|> assign(:page_title, group.name)
|> assign(:group, group)}
{:error, _error} ->
{:noreply,
socket
|> put_flash(:error, gettext("Failed to load group."))
|> redirect(to: ~p"/groups")}
end
end
end
@impl true
def render(assigns) do
~H"""
<Layouts.app flash={@flash} current_user={@current_user}>
<%!-- Header with Back button, Name, and Edit/Delete buttons --%>
<div class="flex items-center justify-between gap-4 pb-4">
<.button navigate={~p"/groups"} aria-label={gettext("Back to groups list")}>
<.icon name="hero-arrow-left" class="size-4" />
{gettext("Back")}
</.button>
<h1 class="text-2xl font-bold text-center flex-1">
{@group.name}
</h1>
<div class="flex gap-2">
<%= if can?(@current_user, :update, Mv.Membership.Group) do %>
<.button variant="primary" navigate={~p"/groups/#{@group.slug}/edit"}>
{gettext("Edit")}
</.button>
<% end %>
<%= if can?(@current_user, :destroy, Mv.Membership.Group) do %>
<.button class="btn-error" phx-click="open_delete_modal">
{gettext("Delete")}
</.button>
<% end %>
</div>
</div>
<%!-- Group Information --%>
<div class="max-w-2xl space-y-6 mb-6">
<div>
<h2 class="text-lg font-semibold mb-2">{gettext("Description")}</h2>
<div class="border border-base-300 rounded-lg p-4 bg-base-100">
<%= if @group.description && String.trim(@group.description) != "" do %>
<p class="whitespace-pre-wrap">{@group.description}</p>
<% else %>
<p class="text-base-content/50 italic">{gettext("No description")}</p>
<% end %>
</div>
</div>
<div>
<h2 class="text-lg font-semibold mb-2">{gettext("Members")}</h2>
<div class="border border-base-300 rounded-lg p-4 bg-base-100">
<p class="mb-4">
{gettext("Total: %{count} member(s)", count: @group.member_count || 0)}
</p>
<%= if Enum.empty?(@group.members || []) do %>
<p class="text-base-content/50 italic">{gettext("No members in this group")}</p>
<% else %>
<div class="overflow-x-auto">
<table class="table table-zebra">
<thead>
<tr>
<th>{gettext("Name")}</th>
<th>{gettext("Email")}</th>
</tr>
</thead>
<tbody>
<%= for member <- @group.members do %>
<tr>
<td>
<.link
navigate={~p"/members/#{member.id}"}
class="link link-primary"
>
{MvWeb.Helpers.MemberHelpers.display_name(member)}
</.link>
</td>
<td>
<%= if member.email do %>
<a
href={"mailto:#{member.email}"}
class="text-blue-700 hover:text-blue-800 underline"
>
{member.email}
</a>
<% else %>
<span class="text-base-content/50 italic">—</span>
<% end %>
</td>
</tr>
<% end %>
</tbody>
</table>
</div>
<% end %>
</div>
</div>
</div>
<%!-- Delete Confirmation Modal --%>
<%= if assigns[:show_delete_modal] do %>
<dialog id="delete-group-modal" class="modal modal-open" role="dialog">
<div class="modal-box">
<h3 class="text-lg font-bold mb-4">{gettext("Delete Group")}</h3>
<p class="mb-4">
{gettext("Are you sure you want to delete this group? This action cannot be undone.")}
</p>
<%= if @group.member_count && @group.member_count > 0 do %>
<div class="alert alert-warning mb-4">
<.icon name="hero-exclamation-triangle" class="size-5" />
<span>
{ngettext(
"This group has %{count} member. All member-group associations will be permanently deleted.",
"This group has %{count} members. All member-group associations will be permanently deleted.",
@group.member_count
)}
</span>
</div>
<% end %>
<div>
<label for="group-name-confirmation" class="label">
<span class="label-text">
{gettext("To confirm deletion, please enter the group name:")}
</span>
</label>
<div class="p-2 mb-2 font-mono text-lg font-bold break-all rounded bg-base-200">
{@group.name}
</div>
<form phx-change="update_name_confirmation">
<input
id="group-name-confirmation"
name="name"
type="text"
value={@name_confirmation || ""}
placeholder={gettext("Enter the group name to confirm")}
autocomplete="off"
class="w-full input input-bordered"
/>
</form>
</div>
<div class="modal-action">
<button
type="button"
class="btn"
phx-click="cancel_delete"
aria-label={gettext("Cancel")}
>
{gettext("Cancel")}
</button>
<button
type="button"
class="btn btn-error"
phx-click="confirm_delete"
phx-value-slug={@group.slug}
disabled={(@name_confirmation || "") != @group.name}
aria-label={gettext("Delete group")}
>
{gettext("Delete")}
</button>
</div>
</div>
</dialog>
<% end %>
</Layouts.app>
"""
end
@impl true
def handle_event("open_delete_modal", _params, socket) do
{:noreply, assign(socket, show_delete_modal: true, name_confirmation: "")}
end
def handle_event("cancel_delete", _params, socket) do
{:noreply,
socket
|> assign(:show_delete_modal, false)
|> assign(:name_confirmation, "")}
end
def handle_event("update_name_confirmation", %{"name" => name}, socket) do
{:noreply, assign(socket, :name_confirmation, name)}
end
def handle_event("confirm_delete", %{"slug" => slug}, socket) do
actor = current_actor(socket)
case Membership.get_group_by_slug(slug, actor: actor) do
{:ok, nil} ->
{:noreply,
socket
|> put_flash(:error, gettext("Group not found."))
|> redirect(to: ~p"/groups")}
{:ok, group} ->
if socket.assigns.name_confirmation == group.name do
case Membership.destroy_group(group, actor: actor) do
:ok ->
{:noreply,
socket
|> put_flash(:info, gettext("Group deleted successfully."))
|> redirect(to: ~p"/groups")}
{:error, error} ->
error_message = format_error(error)
{:noreply,
socket
|> put_flash(
:error,
gettext("Failed to delete group: %{error}", error: error_message)
)
|> assign(:show_delete_modal, false)
|> assign(:name_confirmation, "")}
end
else
{:noreply,
socket
|> put_flash(:error, gettext("Group name does not match."))
|> assign(:show_delete_modal, false)
|> assign(:name_confirmation, "")}
end
{:error, _error} ->
{:noreply,
socket
|> put_flash(:error, gettext("Failed to load group."))
|> redirect(to: ~p"/groups")}
end
end
defp format_error(%{message: message}) when is_binary(message), do: message
defp format_error(error), do: inspect(error)
end