cannery/lib/cannery_web/live/pack_live/form_component.ex
shibao 56a49ed2e3
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fix changesets
2024-07-28 13:17:33 -04:00

191 lines
5.4 KiB
Elixir

defmodule CanneryWeb.PackLive.FormComponent do
@moduledoc """
Livecomponent that can update or create an Cannery.Ammo.Pack
"""
use CanneryWeb, :live_component
alias Cannery.Ammo.{Pack, Type}
alias Cannery.{Accounts.User, Ammo, Containers, Containers.Container}
alias Ecto.Changeset
alias Phoenix.LiveView.Socket
@pack_create_limit 10_000
@impl true
@spec update(
%{:pack => Pack.t(), :current_user => User.t(), optional(any) => any},
Socket.t()
) :: {:ok, Socket.t()}
def update(%{pack: _pack} = assigns, socket) do
socket |> assign(assigns) |> update()
end
@spec update(Socket.t()) :: {:ok, Socket.t()}
def update(%{assigns: %{current_user: current_user}} = socket) do
socket =
socket
|> assign(:pack_create_limit, @pack_create_limit)
|> assign(:types, Ammo.list_types(current_user))
|> assign_new(:containers, fn -> Containers.list_containers(current_user) end)
{:ok, socket |> assign_changeset(%{})}
end
@impl true
def handle_event("validate", %{"pack" => pack_params}, socket) do
{:noreply, socket |> assign_changeset(pack_params, :validate)}
end
def handle_event(
"save",
%{"pack" => pack_params},
%{assigns: %{action: action}} = socket
) do
save_pack(socket, action, pack_params)
end
# HTML Helpers
@spec container_options([Container.t()]) :: [{String.t(), Container.id()}]
defp container_options(containers) do
containers |> Enum.map(fn %{id: id, name: name} -> {name, id} end)
end
@spec type_options([Type.t()]) :: [{String.t(), Type.id()}]
defp type_options(types) do
types |> Enum.map(fn %{id: id, name: name} -> {name, id} end)
end
# Save Helpers
defp assign_changeset(
%{assigns: %{action: action, pack: pack, current_user: user}} = socket,
pack_params,
changeset_action \\ nil
) do
default_action =
case action do
create when create in [:new, :clone] -> :insert
:edit -> :update
end
changeset =
case default_action do
:insert ->
type = maybe_get_type(pack_params, user)
container = maybe_get_container(pack_params, user)
pack |> Pack.create_changeset(type, container, user, pack_params)
:update ->
pack |> Pack.update_changeset(pack_params, user)
end
changeset =
if changeset_action do
case changeset |> Changeset.apply_action(changeset_action) do
{:ok, _data} -> changeset
{:error, changeset} -> changeset
end
else
changeset
end
socket |> assign(:changeset, changeset)
end
defp maybe_get_container(%{"container_id" => container_id}, user)
when is_binary(container_id) do
container_id |> Containers.get_container!(user)
end
defp maybe_get_container(_params_not_found, _user), do: nil
defp maybe_get_type(%{"type_id" => type_id}, user)
when is_binary(type_id) do
type_id |> Ammo.get_type!(user)
end
defp maybe_get_type(_params_not_found, _user), do: nil
defp save_pack(
%{assigns: %{pack: pack, current_user: current_user, return_to: return_to}} = socket,
:edit,
pack_params
) do
socket =
case Ammo.update_pack(pack, pack_params, current_user) do
{:ok, _pack} ->
prompt = dgettext("prompts", "Ammo updated successfully")
socket |> put_flash(:info, prompt) |> push_navigate(to: return_to)
{:error, %Changeset{} = changeset} ->
socket |> assign(:changeset, changeset)
end
{:noreply, socket}
end
defp save_pack(
%{assigns: %{changeset: changeset}} = socket,
action,
%{"multiplier" => multiplier_str} = pack_params
)
when action in [:new, :clone] do
socket =
case multiplier_str |> Integer.parse() do
{multiplier, _remainder}
when multiplier >= 1 and multiplier <= @pack_create_limit ->
socket |> create_multiple(pack_params, multiplier)
{multiplier, _remainder} ->
error_msg =
dgettext(
"errors",
"Invalid number of copies, must be between 1 and %{max}. Was %{multiplier}",
max: @pack_create_limit,
multiplier: multiplier
)
save_multiplier_error(socket, changeset, error_msg)
:error ->
error_msg = dgettext("errors", "Could not parse number of copies")
save_multiplier_error(socket, changeset, error_msg)
end
{:noreply, socket}
end
@spec save_multiplier_error(Socket.t(), Changeset.t(), String.t()) :: Socket.t()
defp save_multiplier_error(socket, changeset, error_msg) do
{:error, changeset} =
changeset
|> Changeset.add_error(:multiplier, error_msg)
|> Changeset.apply_action(:insert)
socket |> assign(:changeset, changeset)
end
defp create_multiple(
%{assigns: %{current_user: current_user, return_to: return_to}} = socket,
pack_params,
multiplier
) do
case Ammo.create_packs(pack_params, multiplier, current_user) do
{:ok, {count, _packs}} ->
prompt =
dngettext(
"prompts",
"Ammo added successfully",
"Ammo added successfully",
count
)
socket |> put_flash(:info, prompt) |> push_navigate(to: return_to)
{:error, %Changeset{} = changeset} ->
socket |> assign(changeset: changeset)
end
end
end