// Copyright 2017 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/fxcrt/fx_system.h"
#include "public/fpdf_edit.h"
#include "testing/embedder_test.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/base/check.h"

class FPDFEditPathEmbedderTest : public EmbedderTest {};

TEST_F(FPDFEditPathEmbedderTest, VerifyCorrectColoursReturned) {
  constexpr int kObjectCount = 256;
  CreateEmptyDocument();
  FPDF_PAGE page = FPDFPage_New(document(), 0, 612, 792);

  for (size_t i = 0; i < kObjectCount; ++i) {
    FPDF_PAGEOBJECT path = FPDFPageObj_CreateNewPath(400, 100);
    EXPECT_TRUE(FPDFPageObj_SetFillColor(path, i, i, i, i));
    EXPECT_TRUE(FPDFPageObj_SetStrokeColor(path, i, i, i, i));
    EXPECT_TRUE(FPDFPath_SetDrawMode(path, FPDF_FILLMODE_ALTERNATE, 0));
    EXPECT_TRUE(FPDFPath_LineTo(path, 400, 200));
    EXPECT_TRUE(FPDFPath_LineTo(path, 300, 100));
    EXPECT_TRUE(FPDFPath_Close(path));

    FPDFPage_InsertObject(page, path);
  }

  EXPECT_TRUE(FPDFPage_GenerateContent(page));
  EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
  FPDF_ClosePage(page);
  page = nullptr;

  ASSERT_TRUE(OpenSavedDocument());
  page = LoadSavedPage(0);
  ASSERT_TRUE(page);

  for (size_t i = 0; i < kObjectCount; ++i) {
    FPDF_PAGEOBJECT path = FPDFPage_GetObject(page, i);
    ASSERT_TRUE(path);

    EXPECT_EQ(FPDF_PAGEOBJ_PATH, FPDFPageObj_GetType(path));

    unsigned int r;
    unsigned int g;
    unsigned int b;
    unsigned int a;
    ASSERT_TRUE(FPDFPageObj_GetFillColor(path, &r, &g, &b, &a));
    EXPECT_EQ(i, r);
    EXPECT_EQ(i, g);
    EXPECT_EQ(i, b);
    EXPECT_EQ(i, a);

    ASSERT_TRUE(FPDFPageObj_GetStrokeColor(path, &r, &g, &b, &a));
    EXPECT_EQ(i, r);
    EXPECT_EQ(i, g);
    EXPECT_EQ(i, b);
    EXPECT_EQ(i, a);
  }

  CloseSavedPage(page);
  CloseSavedDocument();
}
