defmodule MoonWeb.Pages.Components.Select.DropdownPage do
  @moduledoc false

  use MoonWeb, :live_view

  alias Moon.Components.Button
  alias Moon.Components.Checkbox
  alias Moon.Components.Form
  alias Moon.Components.Field
  alias Moon.Components.FieldLabel
  alias Moon.Components.Select.Dropdown
  alias Moon.Components.Select.Dropdown.Footer
  alias Moon.Components.ListItems.SingleLineItem
  alias Moon.Components.Tabs
  alias Moon.Components.Tabs.TabLink
  alias MoonWeb.Components.ExampleAndCode
  alias MoonWeb.Components.Page
  alias MoonWeb.Pages.Tutorials.AddDataUsingForm.User
  alias MoonWeb.Components.ComponentPageDescription

  data(breadcrumbs, :any,
    default: [
      %{
        to: "#",
        name: "Components"
      },
      %{
        to: "/components/select/dropdown",
        name: "Multi Select"
      }
    ]
  )

  data(search_string, :string, default: "")

  def mount(_params, _session, socket) do
    user_changeset = User.changeset(%User{}, %{permissions: [1, 2], role: 1})

    {:ok,
     assign(socket,
       user_changeset: user_changeset,
       radio_form_changeset: user_changeset,
       options: User.available_permissions(),
       searched_options: User.available_permissions(),
       options_with_left_icon: User.available_permissions_with_left_icon(),
       searched_options_with_left_icon: User.available_permissions_with_left_icon(),
       search_string: "",
       tab_id: "1",
       selected: [],
       latest_params: nil
     )}
  end

  def handle_params(_params, uri, socket) do
    {:noreply, assign(socket, uri: uri)}
  end

  def render(assigns) do
    ~F"""
    <Page {=@theme_name} {=@active_page} {=@breadcrumbs} {=@direction}>
      <ComponentPageDescription title="Dropdown">
        <p>Dropdowns is a custom select component that allows users to make single or multiple selections.</p>
        <p>An option that's been selected can represent a corresponding value in forms or be used to filter/sort content.containers as Popovers, Sidebars, Drawers, Dialogs etc.</p>
      </ComponentPageDescription>

      <ExampleAndCode title="Options" id="dropdown-options-example">
        <:example>
          <Form for={@user_changeset} change="form_update" submit="form_submit">
            <Field name={:permissions}>
              <FieldLabel>Permissions</FieldLabel>
              <Dropdown id="dropdown-options-example-user-permissions" options={@options} is_multi />
            </Field>
          </Form>
        </:example>
        <:code>{code_for_dropdown()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>

      <ExampleAndCode title="With icons" id="dropdown-icons-example">
        <:example>
          <Form for={@user_changeset} change="form_update" submit="form_submit">
            <Field name={:permissions}>
              <FieldLabel>Permissions</FieldLabel>
              <Dropdown id="dropdown-icons-example-user-permissions" is_multi options={@options}>
                {#for option <- @options}
                  <Dropdown.Option value={"#{option.value}"} :let={is_selected: is_selected}>
                    <SingleLineItem current={is_selected}>
                      <:left_icon><Moon.Icons.ControlsPlus /></:left_icon>
                      {option.label}
                      <:right_icon><Moon.Icons.ControlsPlus /></:right_icon>
                    </SingleLineItem>
                  </Dropdown.Option>
                {/for}
              </Dropdown>
            </Field>
          </Form>
        </:example>
        <:code>{code_for_dropdown()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>

      <ExampleAndCode title="With search and footer (markup)" id="search_and_footer_markup">
        <:example>
          <Form for={@user_changeset} change="form_update" submit="form_submit">
            <Field name={:permissions}>
              <FieldLabel>Permissions</FieldLabel>
              <Dropdown
                id="random-id-38943"
                available_options={@options}
                options={@searched_options}
                on_search_change="update_search"
                search_string={@search_string}
                is_multi
              >
                {#for option <- @searched_options}
                  <Dropdown.Option value={"#{option.value}"} :let={is_selected: is_selected}>
                    <SingleLineItem current={is_selected}>
                      <:left_icon><Moon.Icons.ControlsPlus /></:left_icon>
                      {option.label}
                      <:right_icon>
                        <Checkbox
                          id={"random-id-38943_#{option.value}"}
                          field={:user_permissions_options_checked}
                          checked={is_selected}
                        />
                      </:right_icon>
                    </SingleLineItem>
                  </Dropdown.Option>
                {/for}
                <:footer>
                  <Footer>
                    <:cancel>
                      <Button variant="secondary" size="sm">Cancel</Button>
                    </:cancel>
                    <:clear>
                      <Button variant="ghost" size="sm" on_click="clear_selections">Clear</Button>
                    </:clear>
                    <:confirm>
                      <Button variant="primary" size="sm">Confirm</Button>
                    </:confirm>
                  </Footer>
                </:footer>
              </Dropdown>
            </Field>
          </Form>
        </:example>
        <:code>{code_for_dropdown_search_footer()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>

      <ExampleAndCode
        title="With search and footer (data + atom form)"
        id="with_search_and_footer_data_and_form_for_atom"
      >
        <:example>
          <Form
            id="with_search_and_footer_data_and_form_for_atom_form"
            for={:selected_params}
            change="update_selected"
            submit="apply"
          >
            <Field name={:selected}>
              <Dropdown
                id="with_search_and_footer_data_and_form_for_atom_form_dropdown"
                available_options={@options_with_left_icon}
                options={@searched_options_with_left_icon}
                value={@selected}
                on_search_change="update_search"
                search_string={@search_string}
                with="checkbox"
                is_multi
              >
                <:footer>
                  <Footer>
                    <:cancel>
                      <Button variant="secondary" size="sm">Cancel</Button>
                    </:cancel>
                    <:clear>
                      <Button variant="ghost" size="sm" on_click="clear_selections">Clear</Button>
                    </:clear>
                    <:confirm>
                      <Button variant="primary" size="sm">Confirm</Button>
                    </:confirm>
                  </Footer>
                </:footer>
              </Dropdown>
            </Field>
          </Form>
        </:example>
        <:code>{code_for_with_search_and_footer_data_and_form_for_atom_form_dropdown()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>

      <ExampleAndCode
        title="With search and footer (data + changeset form)"
        id="with_search_and_footer_data_changeset"
      >
        <:example>
          <Form for={@user_changeset} change="form_update" submit="form_submit">
            <Field name={:permissions}>
              <FieldLabel>Permissions</FieldLabel>
              <Dropdown
                id="search_and_footer_data_for_changeset_dropdown"
                available_options={@options_with_left_icon}
                options={@searched_options_with_left_icon}
                on_search_change="update_search"
                search_string={@search_string}
                with="checkbox"
                is_multi
              >
                <:footer>
                  <Footer>
                    <:cancel>
                      <Button variant="secondary" size="sm">Cancel</Button>
                    </:cancel>
                    <:clear>
                      <Button variant="ghost" size="sm" on_click="clear_selections">Clear</Button>
                    </:clear>
                    <:confirm>
                      <Button variant="primary" size="sm">Confirm</Button>
                    </:confirm>
                  </Footer>
                </:footer>
              </Dropdown>
            </Field>
          </Form>
        </:example>
        <:code>{code_for_dropdown_search_footer_and_data_and_form_changeset()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>

      <ExampleAndCode title="With radio button" id="dropdown-radio-example">
        <:example>
          <Form for={@radio_form_changeset} change="form_radio_update" submit="form_submit">
            <Dropdown
              id="user-role"
              field={:role}
              options={User.available_roles_with_left_icon()}
              with="radio"
            />
          </Form>
        </:example>
        <:code>{code_for_dropdown_radio_button()}</:code>
        <:state>{state_for_dropdown_radio_button(assigns)}</:state>
      </ExampleAndCode>

      <ExampleAndCode title="With checkbox" id="dropdown-checkbox-example">
        <:example>
          <Form for={@user_changeset} change="form_update" submit="form_submit">
            <Field name={:permissions}>
              <FieldLabel>Permissions</FieldLabel>
              <Dropdown
                id="dropdown-checkbox-example-user-permissions"
                available_options={@options}
                options={@searched_options}
                is_multi
              >
                {#for option <- @searched_options}
                  <Dropdown.Option value={"#{option.value}"} :let={is_selected: is_selected}>
                    <SingleLineItem current={is_selected}>
                      <:left_icon><Moon.Icons.ControlsPlus /></:left_icon>
                      {option.label}
                      <:right_icon>
                        <Checkbox
                          id={"user_permissions_#{option.value}"}
                          field={:user_permissions_options_checked}
                          checked={is_selected}
                        />
                      </:right_icon>
                    </SingleLineItem>
                  </Dropdown.Option>
                {/for}
              </Dropdown>
            </Field>
          </Form>
        </:example>
        <:code>{code_for_dropdown_checkbox()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>

      <ExampleAndCode title="With Tabs" id="dropdown-tabs-example">
        <:example>
          <Form for={@user_changeset} change="form_update" submit="form_submit">
            <Field name={:permissions}>
              <FieldLabel>Permissions</FieldLabel>
              <Dropdown id="dropdown-tabs-example-user-permissions" options={@options} is_multi>
                <:header>
                  <Tabs>
                    <TabLink active={@tab_id == "1"} on_click="clicked_tab" item_id="1">Link 1</TabLink>
                    <TabLink active={@tab_id == "2"} on_click="clicked_tab" item_id="2">Link 2</TabLink>
                    <TabLink active={@tab_id == "3"} on_click="clicked_tab" item_id="3">Link 3</TabLink>
                    <TabLink active={@tab_id == "4"} on_click="clicked_tab" item_id="4">Link 4</TabLink>
                  </Tabs>
                </:header>
              </Dropdown>
            </Field>
          </Form>
        </:example>
        <:code>{code_for_dropdown_tabs()}</:code>
        <:state>@user_changeset = {inspect(@user_changeset, pretty: true)}</:state>
      </ExampleAndCode>
    </Page>
    """
  end

  def handle_event("update_selected", params, socket) do
    %{"selected_params" => selected_params} = params
    selected = selected_params["selected"] || []
    {:noreply, assign(socket, selected: selected)}
  end

  def handle_event(
        "form_update",
        params,
        socket
      ) do
    user_params = params["user"] || %{permissions: []}
    user_changeset = User.changeset(%User{}, user_params)

    {:noreply, assign(socket, user_changeset: user_changeset, latest_params: user_params)}
  end

  def handle_event(
        "form_submit",
        %{
          "user" => user_params
        },
        socket
      ) do
    user_changeset = User.changeset(%User{}, user_params)

    {:noreply, assign(socket, user_changeset: user_changeset)}
  end

  def handle_event("form_radio_update", params, socket) do
    user_params = params["user"] || %{"role" => nil}
    user_changeset = User.changeset(%User{}, user_params)

    {:noreply, assign(socket, radio_form_changeset: user_changeset, latest_params: user_params)}
  end

  def handle_event("clear_selections", _params, socket) do
    user_changeset = User.changeset(%User{}, %{"permissions" => []})

    {:noreply, assign(socket, user_changeset: user_changeset)}
  end

  def handle_event(
        "update_search",
        %{"value" => search_string},
        socket
      ) do
    options = socket.assigns.options
    options_with_left_icon = socket.assigns.options_with_left_icon

    searched_options =
      options
      |> Enum.filter(&String.contains?(String.downcase(&1.label), String.downcase(search_string)))

    searched_options_with_left_icon =
      options_with_left_icon
      |> Enum.filter(&String.contains?(String.downcase(&1.label), String.downcase(search_string)))

    {:noreply,
     assign(socket,
       searched_options: searched_options,
       searched_options_with_left_icon: searched_options_with_left_icon,
       search_string: search_string
     )}
  end

  def handle_event("clicked_tab", %{"item_id" => tab_id}, socket) do
    {:noreply, assign(socket, tab_id: tab_id)}
  end

  def code_for_dropdown do
    """
    <Form for={@user_changeset} change="form_update" submit="form_submit">
      <Field name={:permissions}>
        <FieldLabel>Permissions</FieldLabel>
        <Dropdown id="dropdown-options-example-user-permissions" options={User.available_permissions()} is_multi />
      </Field>
    </Form>
    """
  end

  def code_for_dropdown_search_footer do
    """
    <Form for={@user_changeset} change="form_update" submit="form_submit">
      <Field name={:permissions}>
        <FieldLabel>Permissions</FieldLabel>
        <Dropdown
          id="random-id-38943"
          available_options={@options}
          options={@searched_options}
          on_search_change="update_search"
          search_string={@search_string}
          is_multi
        >
          {#for option <- @searched_options}
            <Dropdown.Option value={"\#{option.value}"} :let={is_selected: is_selected}>
              <SingleLineItem current={is_selected}>
                <:left_icon><Moon.Icons.ControlsPlus /></:left_icon>
                {option.label}
                <:right_icon>
                  <Checkbox
                    id={"random-id-38943_\#{option.value}"}
                    field={:user_permissions_options_checked}
                    checked={is_selected}
                  />
                </:right_icon>
              </SingleLineItem>
            </Dropdown.Option>
          {/for}
          <:footer>
            <Footer>
              <:cancel>
                <Button variant="secondary" size="sm">Cancel</Button>
              </:cancel>
              <:clear>
                <Button variant="ghost" size="sm" on_click="clear_selections">Clear</Button>
              </:clear>
              <:confirm>
                <Button variant="primary" size="sm">Confirm</Button>
              </:confirm>
            </Footer>
          </:footer>
        </Dropdown>
      </Field>
    </Form>
    """
  end

  def code_for_with_search_and_footer_data_and_form_for_atom_form_dropdown do
    """
    <Form
      id="with_search_and_footer_data_and_form_for_atom_form"
      for={:selected_params}
      change="update_selected"
      submit="apply"
    >
      <Field name={:selected}>
        <Dropdown
          id="with_search_and_footer_data_and_form_for_atom_form_dropdown"
          available_options={@options_with_left_icon}
          options={@searched_options_with_left_icon}
          value={@selected}
          on_search_change="update_search"
          search_string={@search_string}
          with="checkbox"
          is_multi
        >
          <:footer>
            <Footer>
              <:cancel>
                <Button variant="secondary" size="sm">Cancel</Button>
              </:cancel>
              <:clear>
                <Button variant="ghost" size="sm" on_click="clear_selections">Clear</Button>
              </:clear>
              <:confirm>
                <Button variant="primary" size="sm">Confirm</Button>
              </:confirm>
            </Footer>
          </:footer>
        </Dropdown>
      </Field>
    </Form>
    """
  end

  def code_for_dropdown_search_footer_and_data_and_form_changeset do
    """
    <Form for={@user_changeset} change="form_update" submit="form_submit">
      <Field name={:permissions}>
        <FieldLabel>Permissions</FieldLabel>
        <Dropdown
          id="search_and_footer_data_dropdown"
          available_options={@options_with_left_icon}
          options={@searched_options_with_left_icon}
          on_search_change="update_search"
          search_string={@search_string}
          with="checkbox"
          is_multi
        >
          <:footer>
            <Footer>
              <:cancel>
                <Button variant="secondary" size="sm">Cancel</Button>
              </:cancel>
              <:clear>
                <Button variant="ghost" size="sm" on_click="clear_selections">Clear</Button>
              </:clear>
              <:confirm>
                <Button variant="primary" size="sm">Confirm</Button>
              </:confirm>
            </Footer>
          </:footer>
        </Dropdown>
      </Field>
    </Form>
    """
  end

  def code_for_dropdown_radio_button do
    """
    <Form for={@radio_form_changeset} change="form_radio_update" submit="form_submit">
      <Dropdown id="user-role" field={:role} options={User.available_roles_with_left_icon()} with="radio" />
    </Form>
    """
  end

  def state_for_dropdown_radio_button(assigns) do
    """
    @radio_form_changeset = #{inspect(assigns.radio_form_changeset, pretty: true)}
    @latest_params = #{inspect(assigns.latest_params, pretty: true)}
    """
  end

  def code_for_dropdown_checkbox do
    """
      <Form for={@user_changeset} change="form_update" submit="form_submit">
        <Field name={:permission}>
          <FieldLabel>Permissions</FieldLabel>
          <Dropdown
            id="dropdown-checkbox-example-user-permissions"
            options={@searchable_options}
            is_multi>
            {#for option <- @searchable_options}
              <Dropdown.Option value="option.value" :let={is_selected: is_selected}>
                <SingleLineItem current={is_selected}>
                  <:left_icon><Moon.Icons.ControlsPlus /></:left_icon>
                  {option.label}
                  <:right_icon>
                    <Checkbox checked={is_selected}/>
                  </:right_icon>
                </SingleLineItem>
              </Dropdown.Option>
            {/for}
          </Dropdown>
        </Field>
      </Form>
    """
  end

  def code_for_dropdown_tabs do
    """
    <Form for={@user_changeset} change="form_update" submit="form_submit">
      <Field name={:permission}>
        <FieldLabel>Permissions</FieldLabel>
        <Dropdown
          id="dropdown-tabs-example-user-permissions"
          options={@options}>
          <:header>
            <Tabs>
              <TabLink active={@tab_id == "1"} on_click="clicked_tab" item_id="1">Link 1</TabLink>
              <TabLink active={@tab_id == "2"} on_click="clicked_tab" item_id="2">Link 2</TabLink>
              <TabLink active={@tab_id == "3"} on_click="clicked_tab" item_id="3">Link 3</TabLink>
              <TabLink active={@tab_id == "4"} on_click="clicked_tab" item_id="4">Link 4</TabLink>
            </Tabs>
          </:header>
        </Dropdown>
      </Field>
    </Form>
    """
  end
end