freedive/lib/freedive_web/live/liliform_live.ex
2024-05-16 05:52:56 +05:30

80 lines
2 KiB
Elixir

defmodule FreediveWeb.LiliformLive do
defmacro __using__(opts) do
quote location: :keep, bind_quoted: [opts: opts] do
use FreediveWeb, :live_view
@behaviour FreediveWeb.LiliformLive
@filters_all [
%{
title: "All",
icon: "all",
active: false,
key: :all
}
]
def(mount(_params, _session, socket)) do
items = items()
filters = filters()
socket = assign(socket, :opts, Keyword.get(unquote(opts), :opts, []))
socket = assign(socket, :items_all, items)
socket =
assign(
socket,
:items,
FreediveWeb.LiliformLive.filter(
items,
FreediveWeb.LiliformLive.get_active_filter(filters)
)
)
socket = assign(socket, :filters, @filters_all ++ filters)
socket = assign(socket, :query, "")
{:ok, socket}
end
def(handle_event("search", %{"value" => query}, socket)) do
items = search(query)
socket = assign(socket, :items, items)
{:noreply, socket}
end
def(handle_event("filter", %{"key" => key}, socket)) do
key = String.to_existing_atom(key)
items = FreediveWeb.LiliformLive.filter(socket.assigns.items_all, key)
socket = assign(socket, :items, items)
socket =
assign(
socket,
:filters,
Enum.map(socket.assigns.filters, fn filter ->
Map.put(filter, :active, filter.key == key)
end)
)
{:noreply, socket}
end
end
end
@callback items() :: [map]
@callback filters() :: [map]
@callback search(query :: String.t()) :: [map]
def filter(items, key) do
case key do
:all ->
items
_ ->
Enum.filter(items, fn item ->
Map.get(item, key) == true
end)
end
end
def get_active_filter(filters) do
filters |> Enum.find(& &1.active) |> Map.get(:key)
end
end