/**
 * Copyright (C) 2021 Saturneric <eric@bktus.com>
 *
 * This file is part of GpgFrontend.
 *
 * GpgFrontend is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GpgFrontend is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
 *
 * The initial version of the source code is inherited from
 * the gpg4usb project, which is under GPL-3.0-or-later.
 *
 * All the source code of GpgFrontend was modified and released by
 * Saturneric <eric@bktus.com> starting on May 12, 2021.
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 */

#include "GpgCoreTest.h"
#include "core/GpgModel.h"
#include "core/function/basic/ChannelObject.h"
#include "core/function/gpg/GpgBasicOperator.h"
#include "core/function/gpg/GpgKeyGetter.h"
#include "core/function/result_analyse/GpgDecryptResultAnalyse.h"
#include "core/model/GpgDecryptResult.h"
#include "core/model/GpgEncryptResult.h"
#include "core/model/GpgSignResult.h"
#include "core/model/GpgVerifyResult.h"
#include "core/utils/GpgUtils.h"

namespace GpgFrontend::Test {

TEST_F(GpgCoreTest, CoreEncryptDecrTest) {
  std::atomic_bool callback_called_flag{false};

  auto encrypt_key = GpgKeyGetter::GetInstance().GetPubkey(
      "E87C6A2D8D95C818DE93B3AE6A2764F8298DEB29");

  GpgBasicOperator::GetInstance().Encrypt(
      {encrypt_key}, GFBuffer("Hello GpgFrontend!"), true,
      [&callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        ASSERT_TRUE((data_obj->Check<GpgEncryptResult, GFBuffer>()));
        auto result = ExtractParams<GpgEncryptResult>(data_obj, 0);
        auto encr_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_TRUE(result.InvalidRecipients().empty());
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

        GpgBasicOperator::GetInstance().Decrypt(
            encr_out_buffer, [&callback_called_flag](
                                 GpgError err, const DataObjectPtr& data_obj) {
              auto d_result = ExtractParams<GpgDecryptResult>(data_obj, 0);
              auto decr_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
              ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);
              ASSERT_FALSE(d_result.Recipients().empty());
              ASSERT_EQ(d_result.Recipients()[0].keyid, "6A2764F8298DEB29");

              ASSERT_EQ(decr_out_buffer, GFBuffer("Hello GpgFrontend!"));

              // stop waiting
              callback_called_flag = true;
            });
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreEncryptSymmetricDecrTest) {
  std::atomic_bool callback_called_flag{false};

  auto encrypt_text = GFBuffer("Hello GpgFrontend!");

  GpgBasicOperator::GetInstance().EncryptSymmetric(
      encrypt_text, true,
      [&callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        ASSERT_TRUE((data_obj->Check<GpgEncryptResult, GFBuffer>()));
        auto result = ExtractParams<GpgEncryptResult>(data_obj, 0);
        auto encr_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_TRUE(result.InvalidRecipients().empty());
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

        GpgBasicOperator::GetInstance().Decrypt(
            encr_out_buffer, [&callback_called_flag](
                                 GpgError err, const DataObjectPtr& data_obj) {
              auto d_result = ExtractParams<GpgDecryptResult>(data_obj, 0);
              auto decr_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
              ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);
              ASSERT_TRUE(d_result.Recipients().empty());
              ASSERT_EQ(decr_out_buffer, GFBuffer("Hello GpgFrontend!"));

              // stop waiting
              callback_called_flag = true;
            });
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreEncryptDecrTest_KeyNotFound_1) {
  std::atomic_bool callback_called_flag{false};

  auto encr_out_data = GFBuffer(
      "-----BEGIN PGP MESSAGE-----\n"
      "\n"
      "hQEMA6UM/S9sZ32MAQf9Fb6gp6nvgKTQBv2mmjXia6ODXYq6kNeLsPVzLCbHyWOs\n"
      "0GDED11R1NksA3EQxFf4fzLkDpbo68r5bWy7c28c99Fr68IRET19Tw6Gu65MQezD\n"
      "Rdzo1oVqmK9sfKqOT3+0S2H+suFYw5kfBztMZLVGGl9R9fOXdKcj0fqGs2br3e9D\n"
      "ArBFqq07Bae2DD1J8mckWB2x9Uem4vjRiY+vEJcEdAS1N5xu1n7qzzyDgcRcS34X\n"
      "PNBQeTrFMc2RS7mnip2DbyZVEjORobhguK6xZyqXXbvFacStGWDLptV3dcCn4JRO\n"
      "dIORyt5wugqAtgE4qEGTvr/pJ/oXPw4Wve/trece/9I/AR38vW8ntVmDa/hV75iZ\n"
      "4QGAhQ8grD4kq31GHXHUOmBX51XXW9SINmplC8elEx3R460EUZJjjb0OvTih+eZH\n"
      "=8n2H\n"
      "-----END PGP MESSAGE-----");

  GpgBasicOperator::GetInstance().Decrypt(
      encr_out_data,
      [=, &callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        auto d_result = ExtractParams<GpgDecryptResult>(data_obj, 0);
        auto decr_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_SECKEY);
        ASSERT_FALSE(d_result.Recipients().empty());
        ASSERT_EQ(d_result.Recipients()[0].keyid, "A50CFD2F6C677D8C");

        // stop waiting
        callback_called_flag = true;
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreEncryptDecrTest_KeyNotFound_ResultAnalyse) {
  std::atomic_bool callback_called_flag{false};

  auto encr_out_data = GFBuffer(
      "-----BEGIN PGP MESSAGE-----\n"
      "\n"
      "hQEMA6UM/S9sZ32MAQf9Fb6gp6nvgKTQBv2mmjXia6ODXYq6kNeLsPVzLCbHyWOs\n"
      "0GDED11R1NksA3EQxFf4fzLkDpbo68r5bWy7c28c99Fr68IRET19Tw6Gu65MQezD\n"
      "Rdzo1oVqmK9sfKqOT3+0S2H+suFYw5kfBztMZLVGGl9R9fOXdKcj0fqGs2br3e9D\n"
      "ArBFqq07Bae2DD1J8mckWB2x9Uem4vjRiY+vEJcEdAS1N5xu1n7qzzyDgcRcS34X\n"
      "PNBQeTrFMc2RS7mnip2DbyZVEjORobhguK6xZyqXXbvFacStGWDLptV3dcCn4JRO\n"
      "dIORyt5wugqAtgE4qEGTvr/pJ/oXPw4Wve/trece/9I/AR38vW8ntVmDa/hV75iZ\n"
      "4QGAhQ8grD4kq31GHXHUOmBX51XXW9SINmplC8elEx3R460EUZJjjb0OvTih+eZH\n"
      "=8n2H\n"
      "-----END PGP MESSAGE-----");

  GpgBasicOperator::GetInstance().Decrypt(
      encr_out_data,
      [=, &callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        auto d_result = ExtractParams<GpgDecryptResult>(data_obj, 0);
        auto decr_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_SECKEY);
        ASSERT_FALSE(d_result.Recipients().empty());
        ASSERT_EQ(d_result.Recipients()[0].keyid, "A50CFD2F6C677D8C");

        GpgDecryptResultAnalyse analyse{err, d_result};
        analyse.Analyse();
        ASSERT_EQ(analyse.GetStatus(), -1);
        ASSERT_FALSE(analyse.GetResultReport().empty());

        // stop waiting
        callback_called_flag = true;
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreSignVerifyNormalTest) {
  std::atomic_bool callback_called_flag{false};

  auto sign_key = GpgKeyGetter::GetInstance().GetPubkey(
      "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  auto sign_text = GFBuffer("Hello GpgFrontend!");

  GpgBasicOperator::GetInstance().Sign(
      {sign_key}, sign_text, GPGME_SIG_MODE_NORMAL, true,
      [&callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        ASSERT_TRUE((data_obj->Check<GpgSignResult, GFBuffer>()));
        auto result = ExtractParams<GpgSignResult>(data_obj, 0);
        auto sign_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_TRUE(result.InvalidSigners().empty());
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

        GpgBasicOperator::GetInstance().Verify(
            sign_out_buffer, GFBuffer(),
            [&callback_called_flag](GpgError err,
                                    const DataObjectPtr& data_obj) {
              auto d_result = ExtractParams<GpgVerifyResult>(data_obj, 0);
              ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);
              ASSERT_FALSE(d_result.GetSignature().empty());
              ASSERT_EQ(d_result.GetSignature().at(0).GetFingerprint(),
                        "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");

              // stop waiting
              callback_called_flag = true;
            });
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreSignVerifyDetachTest) {
  std::atomic_bool callback_called_flag{false};

  auto sign_key = GpgKeyGetter::GetInstance().GetPubkey(
      "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  auto sign_text = GFBuffer("Hello GpgFrontend!");

  GpgBasicOperator::GetInstance().Sign(
      {sign_key}, sign_text, GPGME_SIG_MODE_DETACH, true,
      [=, &callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        ASSERT_TRUE((data_obj->Check<GpgSignResult, GFBuffer>()));
        auto result = ExtractParams<GpgSignResult>(data_obj, 0);
        auto sign_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_TRUE(result.InvalidSigners().empty());
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

        GpgBasicOperator::GetInstance().Verify(
            sign_text, sign_out_buffer,
            [&callback_called_flag](GpgError err,
                                    const DataObjectPtr& data_obj) {
              auto d_result = ExtractParams<GpgVerifyResult>(data_obj, 0);
              ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);
              ASSERT_FALSE(d_result.GetSignature().empty());
              ASSERT_EQ(d_result.GetSignature().at(0).GetFingerprint(),
                        "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");

              // stop waiting
              callback_called_flag = true;
            });
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreSignVerifyClearTest) {
  std::atomic_bool callback_called_flag{false};

  auto sign_key = GpgKeyGetter::GetInstance().GetPubkey(
      "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  auto sign_text = GFBuffer("Hello GpgFrontend!");

  GpgBasicOperator::GetInstance().Sign(
      {sign_key}, sign_text, GPGME_SIG_MODE_CLEAR, true,
      [&callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        ASSERT_TRUE((data_obj->Check<GpgSignResult, GFBuffer>()));
        auto result = ExtractParams<GpgSignResult>(data_obj, 0);
        auto sign_out_buffer = ExtractParams<GFBuffer>(data_obj, 1);
        ASSERT_TRUE(result.InvalidSigners().empty());
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

        GpgBasicOperator::GetInstance().Verify(
            sign_out_buffer, GFBuffer(),
            [&callback_called_flag](GpgError err,
                                    const DataObjectPtr& data_obj) {
              auto verify_reult = ExtractParams<GpgVerifyResult>(data_obj, 0);
              ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);
              ASSERT_FALSE(verify_reult.GetSignature().empty());
              ASSERT_EQ(verify_reult.GetSignature().at(0).GetFingerprint(),
                        "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");

              // stop waiting
              callback_called_flag = true;
            });
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

TEST_F(GpgCoreTest, CoreEncryptSignDecrVerifyTest) {
  std::atomic_bool callback_called_flag{false};

  auto encrypt_key = GpgKeyGetter::GetInstance().GetPubkey(
      "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  auto sign_key = GpgKeyGetter::GetInstance().GetKey(
      "8933EB283A18995F45D61DAC021D89771B680FFB");
  auto encrypt_text = GFBuffer("Hello GpgFrontend!");

  ASSERT_TRUE(sign_key.IsPrivateKey());
  ASSERT_TRUE(sign_key.IsHasActualSigningCapability());

  GpgBasicOperator::GetInstance().EncryptSign(
      {encrypt_key}, {sign_key}, encrypt_text, true,
      [&callback_called_flag](GpgError err, const DataObjectPtr& data_obj) {
        ASSERT_TRUE(
            (data_obj->Check<GpgEncryptResult, GpgSignResult, GFBuffer>()));
        auto encr_result = ExtractParams<GpgEncryptResult>(data_obj, 0);
        auto sign_result = ExtractParams<GpgSignResult>(data_obj, 1);
        auto encr_out_buffer = ExtractParams<GFBuffer>(data_obj, 2);
        ASSERT_TRUE(encr_result.InvalidRecipients().empty());
        ASSERT_TRUE(sign_result.InvalidSigners().empty());
        ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

        GpgBasicOperator::GetInstance().DecryptVerify(
            encr_out_buffer, [&callback_called_flag](
                                 GpgError err, const DataObjectPtr& data_obj) {
              ASSERT_TRUE(
                  (data_obj
                       ->Check<GpgDecryptResult, GpgVerifyResult, GFBuffer>()));
              auto decrypt_result =
                  ExtractParams<GpgDecryptResult>(data_obj, 0);
              auto verify_reult = ExtractParams<GpgVerifyResult>(data_obj, 1);
              auto decr_out_buffer = ExtractParams<GFBuffer>(data_obj, 2);

              ASSERT_EQ(CheckGpgError(err), GPG_ERR_NO_ERROR);

              ASSERT_FALSE(decrypt_result.Recipients().empty());
              ASSERT_EQ(decr_out_buffer, GFBuffer("Hello GpgFrontend!"));

              ASSERT_EQ(decrypt_result.Recipients()[0].keyid,
                        "F89C95A05088CC93");
              ASSERT_FALSE(verify_reult.GetSignature().empty());
              ASSERT_EQ(verify_reult.GetSignature().at(0).GetFingerprint(),
                        "8933EB283A18995F45D61DAC021D89771B680FFB");

              // stop waiting
              callback_called_flag = true;
            });
      });

  int retry_count = 1000;
  while (!callback_called_flag && retry_count-- > 0) {
    std::this_thread::sleep_for(std::chrono::milliseconds(10));
  }

  ASSERT_TRUE(callback_called_flag);
}

}  // namespace GpgFrontend::Test