From b10ed8dd3559751ada847b293a33489d2bb17c39 Mon Sep 17 00:00:00 2001
From: Ayiko Fred <lgmfred@ayikoyo.com>
Date: Thu, 5 Oct 2023 14:19:23 +0300
Subject: [PATCH] Add events LiveView

---
 .tool-versions                                |   2 +-
 .../live/events_live.ex                       | 146 ++++++++++++++++++
 lib/elixir_conf_africa_web/router.ex          |   2 +
 test/elixir_conf_africa/events_test.exs       |   2 +-
 .../live/events_live_test.exs                 |   5 +
 5 files changed, 155 insertions(+), 2 deletions(-)
 create mode 100644 lib/elixir_conf_africa_web/live/events_live.ex
 create mode 100644 test/elixir_conf_africa_web/live/events_live_test.exs

diff --git a/.tool-versions b/.tool-versions
index a6525d1..f152bcc 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-elixir 1.15.4
+elixir 1.15.4-otp-26
 erlang 26.0
 postgres 15.3
diff --git a/lib/elixir_conf_africa_web/live/events_live.ex b/lib/elixir_conf_africa_web/live/events_live.ex
new file mode 100644
index 0000000..53605e3
--- /dev/null
+++ b/lib/elixir_conf_africa_web/live/events_live.ex
@@ -0,0 +1,146 @@
+defmodule ElixirConfAfricaWeb.EventsLive do
+  alias ElixirConfAfrica.Tickets
+  use ElixirConfAfricaWeb, :live_view
+
+  alias ElixirConfAfrica.Events
+  alias ElixirConfAfrica.Events.Event
+  alias ElixirConfAfrica.Ticket
+  alias ElixirConfAfrica.Tickets.Ticket
+
+  def mount(_params, _session, socket) do
+    events = Events.list_events()
+    if connected?(socket), do: IO.inspect(self(), label: "LiveView process:")
+
+    event_changeset = Events.change_event(%Event{})
+    ticket_changeset = Tickets.change_ticket(%Ticket{})
+
+    {:ok,
+     assign(socket,
+       events: events,
+       event_form: to_form(event_changeset),
+       ticket_form: to_form(ticket_changeset),
+       show_ticket_form: false
+     )}
+  end
+
+  def handle_params(%{"id" => id}, _uri, socket) do
+    IO.inspect(self(), label: "LiveView process:")
+    event = Events.get_event!(id)
+    {:noreply, assign(socket, selected_event: event)}
+  end
+
+  def handle_params(_params, _uri, socket) do
+    IO.inspect(self(), label: "LiveView process:")
+    {:noreply, assign(socket, selected_event: hd(socket.assigns.events))}
+  end
+
+  def render(assigns) do
+    ~H"""
+    <h1>Events</h1>
+    <div class="flex gap-10">
+      <%!-- sidebar --%>
+      <div>
+        <div class="flex flex-col">
+          <.link patch={~p"/events/new"}>
+            Add New Event
+          </.link>
+          <.link :for={event <- @events} patch={~p"/events?#{[id: event]}"}>
+            <span><%= event.event_type %></span>
+            <%= event.name %>
+          </.link>
+        </div>
+      </div>
+      <%!-- main section --%>
+      <div>
+        <.event_form :if={@live_action == :new} form={@event_form} />
+        <div :if={@live_action != :new}>
+          <h1><%= @selected_event.name %></h1>
+          <.button phx-click="toggle-ticket-form">
+            Add ticket type
+          </.button>
+          <.ticket_form :if={@show_ticket_form} form={@ticket_form} event_id={@selected_event.id} />
+          <ul>
+            <li>Location: <%= @selected_event.location %></li>
+            <li>Start: <%= @selected_event.start_date %></li>
+            <li>End: <%= @selected_event.end_date %></li>
+          </ul>
+        </div>
+      </div>
+    </div>
+    """
+  end
+
+  def handle_event("save_event", %{"event" => event_params}, socket) do
+    case Events.create_event(event_params) do
+      {:ok, event} ->
+        socket =
+          update(
+            socket,
+            :events,
+            fn events -> [event | events] end
+          )
+
+        changeset = Events.change_event(%Event{})
+
+        {:noreply, assign(socket, :event_form, to_form(changeset))}
+
+      {:error, changeset} ->
+        {:noreply, assign(socket, :event_form, to_form(changeset))}
+    end
+  end
+
+  def handle_event("save_ticket", %{"ticket" => ticket_params}, socket) do
+    IO.inspect(ticket_params, label: "Ticket params")
+
+    case Tickets.create_ticket(ticket_params) do
+      {:ok, _ticket} ->
+        changeset = Tickets.change_ticket(%Ticket{})
+        socket = assign(socket, :ticket_form, to_form(changeset))
+
+        {:noreply, update(socket, :show_ticket_form, &(!&1))}
+
+      {:error, changeset} ->
+        {:noreply, assign(socket, :ticket_form, to_form(changeset))}
+    end
+  end
+
+  def handle_event("toggle-ticket-form", _params, socket) do
+    {:noreply, update(socket, :show_ticket_form, &(!&1))}
+  end
+
+  def event_form(assigns) do
+    ~H"""
+    <div>
+      <h2>Add New Event</h2>
+      <.form for={@form} phx-submit="save_event">
+        <.input field={@form[:name]} placeholder="Event name" />
+        <.input field={@form[:event_type]} placeholder="Event type" />
+        <.input field={@form[:location]} placeholder="Event location" />
+        <.input field={@form[:start_date]} type="datetime-local" placeholder="Start date" />
+        <.input field={@form[:end_date]} type="datetime-local" placeholder="End date" />
+        <.button phx-disable-with="Saving...">
+          Save Event
+        </.button>
+      </.form>
+    </div>
+    """
+  end
+
+  def ticket_form(assigns) do
+    ~H"""
+    <div>
+      <h2>Add New Ticket</h2>
+      <.form for={@form} phx-submit="save_ticket">
+        <.input field={@form[:event_id]} type="hidden" value={@event_id} />
+        <.input field={@form[:type]} placeholder="Ticket type" />
+        <.input field={@form[:description]} placeholder="Ticket description" />
+        <.input field={@form[:price]} type="number" placeholder="Ticket price" />
+        <.input field={@form[:ticket_number]} type="number" placeholder="Ticket number" />
+        <.button phx-disable-with="Saving...">
+          Save Ticket
+        </.button>
+      </.form>
+    </div>
+    """
+  end
+end
diff --git a/lib/elixir_conf_africa_web/router.ex b/lib/elixir_conf_africa_web/router.ex
index 1b95865..3f10701 100644
--- a/lib/elixir_conf_africa_web/router.ex
+++ b/lib/elixir_conf_africa_web/router.ex
@@ -18,6 +18,8 @@ defmodule ElixirConfAfricaWeb.Router do
     pipe_through :browser
 
     get "/", PageController, :home
+    live "/events", EventsLive
+    live "/events/new", EventsLive, :new
   end
 
   # Other scopes may use custom stacks.
diff --git a/test/elixir_conf_africa/events_test.exs b/test/elixir_conf_africa/events_test.exs
index b9a3620..a05363f 100644
--- a/test/elixir_conf_africa/events_test.exs
+++ b/test/elixir_conf_africa/events_test.exs
@@ -8,7 +8,7 @@ defmodule ElixirConfAfrica.EventsTest do
 
     import ElixirConfAfrica.EventsFixtures
 
-    @invalid_attrs %{location: nil, start_date: nil, end_date: nil, event_type: nil}
+    @invalid_attrs %{name: nil, location: nil, start_date: nil, end_date: nil, event_type: nil}
 
     test "list_events/0 returns all events" do
       event = event_fixture()
diff --git a/test/elixir_conf_africa_web/live/events_live_test.exs b/test/elixir_conf_africa_web/live/events_live_test.exs
new file mode 100644
index 0000000..6762316
--- /dev/null
+++ b/test/elixir_conf_africa_web/live/events_live_test.exs
@@ -0,0 +1,5 @@
+defmodule ElixirConfAfricaWeb.EventsLiveTest do
+  use ExUnit.Case
+  doctest ElixirConfAfricaWeb.EventsLive
+  alias ElixirConfAfricaWeb.EventsLive
+end