// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_UI_VIEWS_DIGITAL_CREDENTIALS_DIGITAL_IDENTITY_MULTI_STEP_DIALOG_H_
#define CHROME_BROWSER_UI_VIEWS_DIGITAL_CREDENTIALS_DIGITAL_IDENTITY_MULTI_STEP_DIALOG_H_

#include <memory>
#include <optional>

#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "ui/base/models/dialog_model.h"
#include "ui/color/color_variant.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/border.h"
#include "ui/views/controls/image_view.h"
#include "ui/views/controls/image_view_base.h"
#include "ui/views/controls/label.h"
#include "ui/views/layout/box_layout_view.h"
#include "ui/views/metadata/view_factory.h"
#include "ui/views/style/typography_provider.h"

class DigitalIdentityMultiStepDialogDelegate;

namespace content {
class WebContents;
}

namespace views {
class BubbleDialogDelegate;
}

// Wraps views::BubbleDialogDelegate where contents can be updated in order to
// support having multiple steps in dialog.
class DigitalIdentityMultiStepDialog {
 public:
  // Configures the `illustration` to be ready for displaying in the dialog. It
  // adjusts the size and wraps it in another view, and adds an optional title
  // and body text if not empty below the illustration. Controllers for
  // different steps in the flow will use this method to configure the
  // corresponding illustration in each step. Implementation is in the header
  // file because this is a templated method.
  static std::unique_ptr<views::BoxLayoutView> CreateHeaderView(
      std::u16string title,
      std::u16string body_text,
      std::unique_ptr<views::ImageViewBase> illustration);

  class TestApi {
   public:
    explicit TestApi(DigitalIdentityMultiStepDialog* dialog);
    ~TestApi();

    views::Widget* GetWidget();
    views::BubbleDialogDelegate* GetWidgetDelegate();

   private:
    const raw_ptr<DigitalIdentityMultiStepDialog> dialog_;
  };

  explicit DigitalIdentityMultiStepDialog(
      base::WeakPtr<content::WebContents> web_contents);
  ~DigitalIdentityMultiStepDialog();

  // Tries to show dialog. Updates the dialog contents if the dialog is already
  // showing. Runs `cancel_callback` if dialog could not be shown (and the
  // dialog is not already showing).
  void TryShow(
      const std::optional<ui::DialogModel::Button::Params>& accept_button,
      base::OnceClosure accept_callback,
      const ui::DialogModel::Button::Params& cancel_button,
      base::OnceClosure cancel_callback,
      const std::u16string& dialog_title,
      const std::u16string& body_text,
      std::unique_ptr<views::View> custom_body_field,
      bool show_progress_bar);

  ui::ColorVariant GetBackgroundColor();

 private:
  DigitalIdentityMultiStepDialogDelegate* GetWidgetDelegate();

  // The web contents the dialog is modal to.
  base::WeakPtr<content::WebContents> web_contents_;

  base::WeakPtr<views::Widget> dialog_;

  base::WeakPtrFactory<DigitalIdentityMultiStepDialog> weak_ptr_factory_{this};
};

#endif  // CHROME_BROWSER_UI_VIEWS_DIGITAL_CREDENTIALS_DIGITAL_IDENTITY_MULTI_STEP_DIALOG_H_