// Copyright 2025 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_AUTOFILL_PAYMENTS_ANDROID_BNPL_UI_DELEGATE_H_
#define CHROME_BROWSER_UI_AUTOFILL_PAYMENTS_ANDROID_BNPL_UI_DELEGATE_H_

#include <string>
#include <vector>

#include "base/functional/callback.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ref.h"
#include "components/autofill/core/browser/data_model/payments/bnpl_issuer.h"
#include "components/autofill/core/browser/payments/legal_message_line.h"
#include "components/autofill/core/browser/ui/payments/bnpl_ui_delegate.h"

namespace autofill {

struct AutofillErrorDialogContext;
enum class AutofillProgressUiType;

namespace payments {

struct BnplIssuerContext;
struct BnplTosModel;
class PaymentsAutofillClient;

// A struct containing a BNPL ToS info to be shown on the bottomsheet screen.
struct BnplIssuerTosDetail {
 public:
  BnplIssuerTosDetail(BnplIssuer::IssuerId issuer_id,
                      bool is_linked_issuer,
                      std::u16string issuer_name,
                      std::vector<LegalMessageLine> legal_message_lines);
  BnplIssuerTosDetail(const BnplIssuerTosDetail& other);
  BnplIssuerTosDetail(BnplIssuerTosDetail&&);
  BnplIssuerTosDetail& operator=(const BnplIssuerTosDetail& other);
  BnplIssuerTosDetail& operator=(BnplIssuerTosDetail&&);
  ~BnplIssuerTosDetail();
  bool operator==(const BnplIssuerTosDetail&) const;

  // Issuer that the ToS screen is being shown for.
  BnplIssuer::IssuerId issuer_id;

  // True if the selected issuer is a linked issuer.
  bool is_linked_issuer;

  // Display name of the BNPL issuer.
  std::u16string issuer_name;

  // Legal messages with links that are shown in screen footer.
  std::vector<LegalMessageLine> legal_message_lines;
};

// Android implementation of the BnplUiDelegate interface. This class handles
// the UI for the BNPL autofill flow on the Android platform.
class AndroidBnplUiDelegate : public BnplUiDelegate {
 public:
  explicit AndroidBnplUiDelegate(PaymentsAutofillClient* client);
  AndroidBnplUiDelegate(const AndroidBnplUiDelegate& other) = delete;
  AndroidBnplUiDelegate& operator=(const AndroidBnplUiDelegate& other) = delete;
  ~AndroidBnplUiDelegate() override;

  // BnplUiDelegate:
  void ShowSelectBnplIssuerUi(
      std::vector<BnplIssuerContext> bnpl_issuer_context,
      std::string app_locale,
      base::RepeatingCallback<void(BnplIssuer)> selected_issuer_callback,
      base::OnceClosure cancel_callback,
      bool has_seen_ai_terms) override;
  void UpdateBnplIssuerUi(
      std::vector<BnplIssuerContext> issuer_contexts,
      std::optional<int64_t> extracted_amount,
      bool is_amount_supported_by_any_issuer,
      const std::optional<std::string>& app_locale,
      base::OnceCallback<void(BnplIssuer)> selected_issuer_callback,
      base::OnceClosure cancel_callback) override;
  void RemoveSelectBnplIssuerOrProgressUi() override;
  void ShowBnplTosUi(BnplTosModel bnpl_tos_model,
                     base::OnceClosure accept_callback,
                     base::OnceClosure cancel_callback) override;
  void RemoveBnplTosOrProgressUi() override;
  void ShowProgressUi(AutofillProgressUiType autofill_progress_dialog_type,
                      base::OnceClosure cancel_callback) override;
  void CloseProgressUi(bool credit_card_fetched_successfully) override;
  void ShowAutofillErrorUi(AutofillErrorDialogContext context) override;

 private:
  const raw_ref<PaymentsAutofillClient> client_;
};

}  // namespace payments

}  // namespace autofill

#endif  // CHROME_BROWSER_UI_AUTOFILL_PAYMENTS_ANDROID_BNPL_UI_DELEGATE_H_