// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "build/build_config.h"
#include "public/fpdf_flatten.h"
#include "public/fpdfview.h"
#include "testing/embedder_test.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {

class FPDFFlattenEmbedderTest : public EmbedderTest {};

}  // namespace

TEST_F(FPDFFlattenEmbedderTest, FlatNothing) {
  EXPECT_TRUE(OpenDocument("hello_world.pdf"));
  FPDF_PAGE page = LoadPage(0);
  EXPECT_TRUE(page);
  EXPECT_EQ(FLATTEN_NOTHINGTODO, FPDFPage_Flatten(page, FLAT_NORMALDISPLAY));
  UnloadPage(page);
}

TEST_F(FPDFFlattenEmbedderTest, FlatNormal) {
  EXPECT_TRUE(OpenDocument("annotiter.pdf"));
  FPDF_PAGE page = LoadPage(0);
  EXPECT_TRUE(page);
  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_NORMALDISPLAY));
  UnloadPage(page);
}

TEST_F(FPDFFlattenEmbedderTest, FlatPrint) {
  EXPECT_TRUE(OpenDocument("annotiter.pdf"));
  FPDF_PAGE page = LoadPage(0);
  EXPECT_TRUE(page);
  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  UnloadPage(page);
}

// TODO(crbug.com/pdfium/11): Fix this test and enable.
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
#define MAYBE_BUG_861842 DISABLED_BUG_861842
#else
#define MAYBE_BUG_861842 BUG_861842
#endif
TEST_F(FPDFFlattenEmbedderTest, MAYBE_BUG_861842) {
#if defined(OS_WIN)
  static const char kCheckboxHash[] = "95fba3cb7bce7e0d3c94279f60984e17";
#elif defined(OS_MACOSX)
  static const char kCheckboxHash[] = "0a1d1d63d4452bc26a1c5c547d309655";
#else
  static const char kCheckboxHash[] = "594265790b81df2d93120d33b72a6ada";
#endif

  EXPECT_TRUE(OpenDocument("bug_861842.pdf"));
  FPDF_PAGE page = LoadPage(0);
  ASSERT_TRUE(page);

  ScopedFPDFBitmap bitmap = RenderLoadedPageWithFlags(page, FPDF_ANNOT);
  CompareBitmap(bitmap.get(), 100, 120, kCheckboxHash);

  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));

  UnloadPage(page);

  // TODO(crbug.com/861842): This should not render blank.
  static const char kBlankPageHash[] = "48400809c3862dae64b0cd00d51057a4";
  VerifySavedDocument(100, 120, kBlankPageHash);
}

// TODO(crbug.com/pdfium/11): Fix this test and enable.
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
#define MAYBE_BUG_890322 DISABLED_BUG_890322
#else
#define MAYBE_BUG_890322 BUG_890322
#endif
TEST_F(FPDFFlattenEmbedderTest, MAYBE_BUG_890322) {
  static const char md5_hash[] = "6c674642154408e877d88c6c082d67e9";
  EXPECT_TRUE(OpenDocument("bug_890322.pdf"));
  FPDF_PAGE page = LoadPage(0);
  ASSERT_TRUE(page);

  ScopedFPDFBitmap bitmap = RenderLoadedPageWithFlags(page, FPDF_ANNOT);
  CompareBitmap(bitmap.get(), 200, 200, md5_hash);

  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));

  UnloadPage(page);

  VerifySavedDocument(200, 200, md5_hash);
}

// TODO(crbug.com/pdfium/11): Fix this test and enable.
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
#define MAYBE_BUG_896366 DISABLED_BUG_896366
#else
#define MAYBE_BUG_896366 BUG_896366
#endif
TEST_F(FPDFFlattenEmbedderTest, MAYBE_BUG_896366) {
  static const char md5_hash[] = "f71ab085c52c8445ae785eca3ec858b1";
  EXPECT_TRUE(OpenDocument("bug_896366.pdf"));
  FPDF_PAGE page = LoadPage(0);
  ASSERT_TRUE(page);

  ScopedFPDFBitmap bitmap = RenderLoadedPageWithFlags(page, FPDF_ANNOT);
  CompareBitmap(bitmap.get(), 612, 792, md5_hash);

  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));

  UnloadPage(page);

  VerifySavedDocument(612, 792, md5_hash);
}