// Copyright 2018 The Chromium 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 "components/omnibox/browser/omnibox_pedal.h"

#include "base/strings/utf_string_conversions.h"
#include "components/omnibox/browser/omnibox_pedal_implementations.h"
#include "components/omnibox/browser/omnibox_pedal_provider.h"
#include "components/strings/grit/components_strings.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"

class OmniboxPedalTest : public testing::Test {
 protected:
  OmniboxPedalTest() {}
};

TEST_F(OmniboxPedalTest, SynonymGroupErasesFirstMatchOnly) {
  const auto group = OmniboxPedal::SynonymGroup(true, {
                                                          "hello",
                                                          "hi",
                                                      });
  base::string16 text = base::ASCIIToUTF16("hello hi world");
  const bool found = group.EraseFirstMatchIn(text);
  EXPECT_TRUE(found);
  // Only the first representative should be removed.
  EXPECT_EQ(text, base::ASCIIToUTF16(" hi world"));
}

TEST_F(OmniboxPedalTest, SynonymGroupsDriveConceptMatches) {
  OmniboxPedal test_pedal(
      OmniboxPedal::LabelStrings(
          IDS_OMNIBOX_PEDAL_CLEAR_BROWSING_DATA_HINT,
          IDS_OMNIBOX_PEDAL_CLEAR_BROWSING_DATA_HINT_SHORT,
          IDS_OMNIBOX_PEDAL_CLEAR_BROWSING_DATA_SUGGESTION_CONTENTS),
      GURL(),
      {
          "test trigger phrase",
      },
      {
          OmniboxPedal::SynonymGroup(false,
                                     {
                                         "optional",
                                     }),
          OmniboxPedal::SynonymGroup(true,
                                     {
                                         "required_a",
                                     }),
          OmniboxPedal::SynonymGroup(true,
                                     {
                                         "required_b",
                                     }),
      });
  const auto is_concept_match = [&](const char* text) {
    return test_pedal.IsConceptMatch(base::ASCIIToUTF16(text));
  };

  // As long as required synonym groups are present, order shouldn't matter.
  EXPECT_TRUE(is_concept_match("required_a required_b"));
  EXPECT_TRUE(is_concept_match("required_b required_a"));

  // Optional groups may be added without stopping trigger.
  EXPECT_TRUE(is_concept_match("required_a required_b optional"));
  EXPECT_TRUE(is_concept_match("required_a optional required_b"));
  EXPECT_TRUE(is_concept_match("optional required_b required_a"));

  // Any required group's absence will stop trigger.
  EXPECT_FALSE(is_concept_match("required_a optional"));
  EXPECT_FALSE(is_concept_match("nonsense"));
  EXPECT_FALSE(is_concept_match("nonsense optional"));

  // Presence of extra text will stop trigger even with all required present.
  EXPECT_FALSE(is_concept_match("required_a required_b nonsense optional"));
  EXPECT_FALSE(is_concept_match("required_b required_a nonsense"));
}