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

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Elixir
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defmodule Shift73kWeb.ShiftAssignLive.Index do
use Shift73kWeb, :live_view
import Shift73k, only: [app_time_zone: 0]
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alias Shift73k.Repo
alias Shift73k.Shifts
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alias Shift73k.Shifts.Templates
alias Shift73k.Shifts.Templates.ShiftTemplate
@custom_shift %ShiftTemplate{subject: "Custom shift", id: "custom-shift"}
@custom_shift_opt {@custom_shift.subject, @custom_shift.id}
@impl true
def mount(_params, session, socket) do
socket
|> assign_defaults(session)
|> assign(:page_title, "Schedule Shifts")
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|> assign(:custom_shift, @custom_shift)
|> assign(:show_template_btn_active, false)
|> assign(:show_template_details, false)
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|> assign(:selected_days, [])
|> assign(:delete_days_shifts, nil)
|> live_okreply()
end
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@impl true
def handle_params(_params, _url, socket) do
socket
|> init_shift_templates()
|> init_shift_template()
|> show_details_if_custom()
|> assign_shift_length()
|> assign_shift_template_changeset()
|> assign_modal_close_handlers()
|> init_today(Date.utc_today())
|> init_day_names()
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|> update_calendar()
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|> live_noreply()
end
defp assign_modal_close_handlers(socket) do
to = Routes.shift_assign_index_path(socket, :index)
assign(socket, modal_return_to: to, modal_close_action: :return)
end
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defp get_shift_template("custom-shift"), do: @custom_shift
defp get_shift_template(template_id), do: Templates.get_shift_template(template_id)
defp assign_shift_length(%{assigns: %{shift_template: shift}} = socket) do
assign(socket, :shift_length, format_shift_length(shift))
end
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defp assign_known_shifts(%{assigns: %{current_user: user}} = socket) do
date_range = socket.assigns.date_range
known_shifts = Shifts.list_shifts_by_user_in_date_range(user.id, date_range)
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assign(socket, :known_shifts, known_shifts)
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end
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)
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end
defp assign_shift_template_changeset(%{assigns: %{shift_template: shift}} = socket) do
cs = Templates.change_shift_template(shift)
assign(socket, :shift_template_changeset, cs)
end
defp init_shift_template(socket) do
first_list_id = socket.assigns.shift_templates |> hd() |> elem(1)
fave_id = socket.assigns.current_user.fave_shift_template_id
assign_shift_template(socket, fave_id || first_list_id)
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end
defp assign_shift_template(socket, template_id) do
assign(socket, :shift_template, get_shift_template(template_id))
end
defp init_shift_templates(%{assigns: %{current_user: user}} = socket) do
shift_templates =
Templates.list_shift_templates_by_user(user.id)
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|> Stream.map(fn t -> shift_template_option(t, user.fave_shift_template_id) end)
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|> Enum.concat([@custom_shift_opt])
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assign(socket, :shift_templates, shift_templates)
end
defp shift_template_option(template, fave_id) do
label =
template.subject <>
" (" <>
format_shift_time(template.time_start) <>
"" <>
format_shift_time(template.time_end) <> ")"
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label =
case fave_id == template.id do
true -> label <> ""
false -> label
end
{label, template.id}
end
defp init_day_names(%{assigns: %{current_user: user, current_date: today}} = socket) do
week_start = Date.beginning_of_week(today, user.week_start_at)
day_names =
week_start
|> Date.range(Date.add(week_start, 6))
|> Enum.map(&Calendar.strftime(&1, "%a"))
assign(socket, :day_names, day_names)
end
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defp date_range(cursor_date, week_start_at) do
last =
cursor_date
|> Date.end_of_month()
|> Date.end_of_week(week_start_at)
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cursor_date
|> Date.beginning_of_month()
|> Date.beginning_of_week(week_start_at)
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|> Date.range(last)
end
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defp assign_date_range(%{assigns: %{current_user: user}} = socket) do
date_range = date_range(socket.assigns.cursor_date, user.week_start_at)
assign(socket, :date_range, date_range)
end
defp assign_week_rows(%{assigns: %{date_range: date_range}} = socket) do
assign(socket, :week_rows, Enum.chunk_every(date_range, 7))
end
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def day_color(day, current_date, cursor_date, selected_days) do
cond do
Enum.member?(selected_days, Date.to_string(day)) ->
cond do
Date.compare(day, current_date) == :eq -> "bg-triangle-info text-white"
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day.month != cursor_date.month -> "bg-triangle-light text-gray"
true -> "bg-triangle-white"
end
Date.compare(day, current_date) == :eq ->
"bg-info text-white"
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day.month != cursor_date.month ->
"bg-light text-gray"
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true ->
""
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end
end
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defp prep_template_params(params, current_user) do
params
|> Map.put("time_start", Time.from_iso8601!("T#{params["time_start"]}:00"))
|> Map.put("time_end", Time.from_iso8601!("T#{params["time_end"]}:00"))
|> Map.put("user_id", current_user.id)
end
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defp show_details_if_custom(socket) do
if socket.assigns.shift_template.id != @custom_shift.id ||
socket.assigns.show_template_details do
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socket
else
socket
|> assign(:show_template_btn_active, true)
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|> push_event("toggle-template-details", %{targetId: "#templateDetailsCol"})
end
end
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defp update_calendar(socket) do
socket
|> assign_date_range()
|> assign_week_rows()
|> assign_known_shifts()
end
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defp new_nav_cursor("now", _cursor_date), do: Date.utc_today()
defp new_nav_cursor(nav, cursor_date) do
cursor_date
|> Date.add((nav == "prev" && -30) || 30)
|> cursor_date()
end
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@impl true
def handle_event("validate-shift-template", %{"shift_template" => params}, socket) do
params = prep_template_params(params, socket.assigns.current_user)
shift_template = socket.assigns.shift_template
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cs =
shift_template
|> Templates.change_shift_template(params)
|> Map.put(:action, :validate)
socket
|> assign(:shift_template_changeset, cs)
|> assign(:shift_template, Map.merge(shift_template, cs.changes))
|> assign_shift_length()
|> live_noreply()
end
@impl true
def handle_event(
"change-selected-template",
%{"template_select" => %{"template" => template_id}},
socket
) do
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socket
|> assign_shift_template(template_id)
|> show_details_if_custom()
|> assign_shift_length()
|> assign_shift_template_changeset()
|> live_noreply()
end
@impl true
def handle_event("month-nav", %{"month" => nav}, socket) do
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new_cursor = new_nav_cursor(nav, socket.assigns.cursor_date)
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socket
|> assign(:cursor_date, new_cursor)
|> update_calendar()
|> live_noreply()
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end
@impl true
def handle_event("toggle-template-details", %{"target_id" => target_id}, socket) do
socket
|> assign(:show_template_btn_active, !socket.assigns.show_template_btn_active)
|> push_event("toggle-template-details", %{targetId: target_id})
|> live_noreply()
end
@impl true
def handle_event("collapse-shown", %{"target_id" => _target_id}, socket) do
{:noreply, assign(socket, :show_template_details, true)}
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end
@impl true
def handle_event("collapse-hidden", %{"target_id" => _target_id}, socket) do
{:noreply, assign(socket, :show_template_details, false)}
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end
@impl true
def handle_event("select-day", %{"day" => day}, socket) do
selected_days = update_selected_days(socket.assigns.selected_days, day)
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{:noreply, assign(socket, :selected_days, selected_days)}
end
@impl true
def handle_event("delete-days-shifts", _params, socket) do
socket
|> assign(:modal_close_action, :delete_days_shifts)
|> assign(:delete_days_shifts, socket.assigns.selected_days)
|> live_noreply()
end
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@impl true
def handle_event("clear-days", _params, socket) do
{:noreply, assign(socket, :selected_days, [])}
end
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@impl true
def handle_event("save-days", _params, socket) do
# 1. collect attrs from loaded shift template
shift_data = ShiftTemplate.attrs(socket.assigns.shift_template)
# 2. fashion list of shift attrs and insert
socket.assigns.selected_days
|> Stream.map(&Date.from_iso8601!/1)
|> Stream.map(&Map.put(shift_data, :date, &1))
|> Enum.map(&Repo.timestamp/1)
|> Shifts.create_multiple()
|> handle_create_multiple_result(socket)
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|> assign(:selected_days, [])
|> assign_known_shifts()
|> live_noreply()
end
@impl true
def handle_info({:put_flash_message, {flash_type, msg}}, socket) do
socket |> put_flash(flash_type, msg) |> live_noreply()
end
@impl true
def handle_info({:clear_selected_days, _}, socket) do
socket |> assign(:selected_days, []) |> live_noreply()
end
@impl true
def handle_info({:close_modal, _}, %{assigns: %{modal_close_action: :return}} = socket) do
socket
|> copy_flash()
|> push_patch(to: socket.assigns.modal_return_to)
|> live_noreply()
end
@impl true
def handle_info({:close_modal, _}, %{assigns: %{modal_close_action: assign_key}} = socket) do
socket
|> assign(assign_key, nil)
|> assign_modal_close_handlers()
|> assign_known_shifts()
|> live_noreply()
end
defp handle_create_multiple_result(result, socket) do
day_count = length(socket.assigns.selected_days)
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{status, msg} =
case result do
{:error, errmsg} ->
{:error, "Ope, problem error inserting shifts, page the dev! Message: #{errmsg}"}
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{n, _} ->
s = (n > 1 && "s") || ""
if n == day_count do
{:success, "Successfully assigned shift to #{n} day#{s}"}
else
{:warning, "Some error, only #{n} day#{s} inserted but #{day_count} were selected"}
end
end
put_flash(socket, status, msg)
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end
def shifts_to_show(day_shifts) do
if length(day_shifts) == 1 || length(day_shifts) > 2,
do: Enum.take(day_shifts, 1),
else: day_shifts
end
defp update_selected_days(selected_days, day) do
case Enum.member?(selected_days, day) do
false -> [day | selected_days]
true -> Enum.reject(selected_days, fn d -> d == day end)
end
end
end