shift73k/lib/shift73k_web/live/shift_live/index.ex

105 lines
2.5 KiB
Elixir

defmodule Shift73kWeb.ShiftLive.Index do
use Shift73kWeb, :live_view
alias Shift73k.Shifts
alias Shift73k.Shifts.Shift
alias Shift73kWeb.Roles
@impl true
def mount(_params, session, socket) do
socket
|> assign_defaults(session)
|> live_okreply()
end
@impl true
def handle_params(params, _url, socket) do
current_user = socket.assigns.current_user
live_action = socket.assigns.live_action
shift = shift_from_params(params)
if Roles.can?(current_user, shift, live_action) do
socket
|> init_today(Date.utc_today())
|> update_agenda()
|> assign(:delete_shift, nil)
|> apply_action(socket.assigns.live_action, params)
|> live_noreply()
else
socket
|> put_flash(:error, "Unauthorised")
|> redirect(to: "/")
|> live_noreply()
end
end
defp apply_action(socket, :index, _params) do
socket
|> assign(:page_title, "My Shifts")
|> assign(:shift, nil)
end
defp shift_from_params(params)
defp shift_from_params(%{"id" => id}),
do: Shifts.get_shift!(id)
defp shift_from_params(_params), do: %Shift{}
defp init_today(socket, today) do
assign(socket, current_date: today, cursor_date: cursor_date(today))
end
defp cursor_date(%Date{} = date) do
date |> Date.beginning_of_month() |> Date.add(4)
end
defp assign_date_range(%{assigns: %{cursor_date: cursor_date}} = socket) do
assign(socket, date_range: date_range(cursor_date))
end
defp date_range(cursor_date) do
cursor_date
|> Date.beginning_of_month()
|> Date.range(Date.end_of_month(cursor_date))
end
defp assign_known_shifts(socket) do
user = socket.assigns.current_user
shifts = Shifts.list_shifts_by_user_in_date_range(user.id, socket.assigns.date_range)
assign(socket, :shifts, shifts)
end
defp update_agenda(socket) do
socket
|> assign_date_range()
|> assign_known_shifts()
end
@impl true
def handle_event("delete", %{"id" => id}, socket) do
shift = Shifts.get_shift!(id)
{:ok, _} = Shifts.delete_shift(shift)
{:noreply, assign_known_shifts(socket)}
end
@impl true
def handle_event("month-nav", %{"month" => nav}, socket) do
new_cursor =
cond do
nav == "now" ->
Date.utc_today()
true ->
socket.assigns.cursor_date
|> Date.add((nav == "prev" && -30) || 30)
|> cursor_date()
end
socket
|> assign(:cursor_date, new_cursor)
|> update_agenda()
|> live_noreply()
end
end