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#include <string>
#include "base/base.h"
#include "base/util.h"
#include "config/config.pb.h"
#include "config/config_handler.h"
#include "testing/base/public/gunit.h"
#include "testing/base/public/googletest.h"

DECLARE_string(test_tmpdir);

namespace mozc {

class ConfigHandlerTest : public testing::Test {
 protected:
  virtual void SetUp() {
    Util::SetUserProfileDirectory(FLAGS_test_tmpdir);
    default_config_filename_ = config::ConfigHandler::GetConfigFileName();
    config::Config default_config;
    config::ConfigHandler::GetDefaultConfig(&default_config);
    config::ConfigHandler::SetConfig(default_config);
  }

  virtual void TearDown() {
    config::ConfigHandler::SetConfigFileName(default_config_filename_);
    config::Config default_config;
    config::ConfigHandler::GetDefaultConfig(&default_config);
    config::ConfigHandler::SetConfig(default_config);
  }
 private:
  string default_config_filename_;
};

TEST_F(ConfigHandlerTest, SetConfig) {
  config::Config input;
  config::Config output;

  const string config_file = Util::JoinPath(FLAGS_test_tmpdir,
                                            "mozc_config_test_tmp");
  Util::Unlink(config_file);
  config::ConfigHandler::SetConfigFileName(config_file);
  EXPECT_EQ(config_file, config::ConfigHandler::GetConfigFileName());
  config::ConfigHandler::Reload();

  config::ConfigHandler::GetDefaultConfig(&input);
  input.set_incognito_mode(true);
#ifndef NO_LOGGING
  input.set_verbose_level(2);
#endif  // NO_LOGGING
  config::ConfigHandler::SetMetaData(&input);
  EXPECT_TRUE(config::ConfigHandler::SetConfig(input));
  output.Clear();
  EXPECT_TRUE(config::ConfigHandler::GetConfig(&output));
  input.mutable_general_config()->set_last_modified_time(0);
  output.mutable_general_config()->set_last_modified_time(0);
  EXPECT_EQ(input.DebugString(), output.DebugString());

  config::ConfigHandler::GetDefaultConfig(&input);
  input.set_incognito_mode(false);
#ifndef NO_LOGGING
  input.set_verbose_level(0);
#endif  // NO_LOGGING
  config::ConfigHandler::SetMetaData(&input);
  EXPECT_TRUE(config::ConfigHandler::SetConfig(input));
  output.Clear();
  EXPECT_TRUE(config::ConfigHandler::GetConfig(&output));

  input.mutable_general_config()->set_last_modified_time(0);
  output.mutable_general_config()->set_last_modified_time(0);
  EXPECT_EQ(input.DebugString(), output.DebugString());

#ifdef CHANNEL_DEV
#endif  // CHANNEL_DEV
}

TEST_F(ConfigHandlerTest, SetImposedConfig) {
  config::Config input;
  config::Config output;

  const string config_file = Util::JoinPath(FLAGS_test_tmpdir,
                                            "mozc_config_test_tmp");
  Util::Unlink(config_file);
  config::ConfigHandler::SetConfigFileName(config_file);
  config::ConfigHandler::Reload();

  struct Testcase {
    bool stored_config_value;
    enum {DO_NOT_IMPOSE, IMPOSE_TRUE, IMPOSE_FALSE} imposed_config_value;
    bool expected_value;
  };
  const Testcase kTestcases[] = {
    {true, Testcase::IMPOSE_TRUE, true},
    {true, Testcase::IMPOSE_FALSE, false},
    {false, Testcase::IMPOSE_TRUE, true},
    {false, Testcase::IMPOSE_FALSE, false},
    {true, Testcase::DO_NOT_IMPOSE, true},
    {false, Testcase::DO_NOT_IMPOSE, false},
  };

  for (size_t i = 0; i < ARRAYSIZE(kTestcases); ++i) {
    const bool stored_config_value = kTestcases[i].stored_config_value;
    const bool expected = kTestcases[i].expected_value;

    // Set current config.
    config::ConfigHandler::GetDefaultConfig(&input);
    input.set_incognito_mode(stored_config_value);
    config::ConfigHandler::SetMetaData(&input);
    EXPECT_TRUE(config::ConfigHandler::SetConfig(input));
    // Set imposed config.
    input.Clear();
    if (kTestcases[i].imposed_config_value != Testcase::DO_NOT_IMPOSE) {
      input.set_incognito_mode(
          kTestcases[i].imposed_config_value == Testcase::IMPOSE_TRUE);
    }
    config::ConfigHandler::SetImposedConfig(input);
    // Check post-condition.
    output.Clear();
    EXPECT_TRUE(config::ConfigHandler::GetConfig(&output));
    EXPECT_EQ(expected, output.incognito_mode());
    output = config::ConfigHandler::GetConfig();
    EXPECT_EQ(expected, output.incognito_mode());
    output = config::ConfigHandler::GetStoredConfig();
    EXPECT_EQ(stored_config_value, output.incognito_mode());

    // Reload and check.
    config::ConfigHandler::Reload();
    output.Clear();
    EXPECT_TRUE(config::ConfigHandler::GetConfig(&output));
    EXPECT_EQ(expected, output.incognito_mode());
    output = config::ConfigHandler::GetConfig();
    EXPECT_EQ(expected, output.incognito_mode());
    output = config::ConfigHandler::GetStoredConfig();
    EXPECT_EQ(stored_config_value, output.incognito_mode());

    // Unset imposed config.
    input.Clear();
    config::ConfigHandler::SetImposedConfig(input);
    // Check post-condition.
    output.Clear();
    EXPECT_TRUE(config::ConfigHandler::GetConfig(&output));
    EXPECT_EQ(stored_config_value, output.incognito_mode());
    output = config::ConfigHandler::GetConfig();
    EXPECT_EQ(stored_config_value, output.incognito_mode());
    output = config::ConfigHandler::GetStoredConfig();
    EXPECT_EQ(stored_config_value, output.incognito_mode());
  }
}

TEST_F(ConfigHandlerTest, ConfigFileNameConfig) {
  Util::SetUserProfileDirectory(FLAGS_test_tmpdir);

  const string config_file = string("config")
      + Util::SimpleItoa(config::CONFIG_VERSION);

  const string filename = Util::JoinPath(FLAGS_test_tmpdir,
                                         config_file);
  Util::Unlink(filename);
  config::Config input;
  config::ConfigHandler::SetConfig(input);
  Util::FileExists(filename);
}

TEST_F(ConfigHandlerTest, SetConfigFileName) {
  config::Config mozc_config;
  mozc_config.mutable_hangul_config()->set_keyboard_type(
      config::HangulConfig::KEYBOARD_SebeolsikFinal);
  config::ConfigHandler::SetConfig(mozc_config);
  config::ConfigHandler::SetConfigFileName("memory://hangul_config.test.db");
  // After SetConfigFileName called, settings are set as default.
  EXPECT_EQ(config::HangulConfig::KEYBOARD_Dubeolsik,
            GET_CONFIG(hangul_config).keyboard_type());
}

TEST_F(ConfigHandlerTest, GetDefaultConfig) {
  config::Config output;

  output.Clear();
  config::ConfigHandler::GetDefaultConfig(&output);
#ifdef OS_MACOSX
  EXPECT_EQ(output.session_keymap(), config::Config::KOTOERI);
#else  // OS_MACOSX
  EXPECT_EQ(output.session_keymap(), config::Config::MSIME);
#endif
  EXPECT_EQ(output.character_form_rules_size(), 13);

  struct TestCase {
    const char *group;
    config::Config::CharacterForm preedit_character_form;
    config::Config::CharacterForm conversion_character_form;
  };
  const TestCase testcases[] = {
     // "ア"
    {"\xE3\x82\xA2", config::Config::FULL_WIDTH, config::Config::FULL_WIDTH},
    {"A", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {"0", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {"(){}[]", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {".,", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    // "。、",
    {"\xE3\x80\x82\xE3\x80\x81",
      config::Config::FULL_WIDTH, config::Config::FULL_WIDTH},
    // "・「」"
    {"\xE3\x83\xBB\xE3\x80\x8C\xE3\x80\x8D",
      config::Config::FULL_WIDTH, config::Config::FULL_WIDTH},
    {"\"'", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {":;", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {"#%&@$^_|`\\", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {"~", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {"<>=+-/*", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
    {"?!", config::Config::FULL_WIDTH, config::Config::LAST_FORM},
  };
  EXPECT_EQ(output.character_form_rules_size(), ARRAYSIZE(testcases));
  for (size_t i = 0; i < ARRAYSIZE(testcases); ++i) {
    EXPECT_EQ(output.character_form_rules(i).group(),
              testcases[i].group);
    EXPECT_EQ(output.character_form_rules(i).preedit_character_form(),
              testcases[i].preedit_character_form);
    EXPECT_EQ(output.character_form_rules(i).conversion_character_form(),
              testcases[i].conversion_character_form);
  }

#ifdef OS_CHROMEOS
  EXPECT_FALSE(output.use_auto_conversion());
#endif

#ifdef CHANNEL_DEV
#endif  // CHANNEL_DEV
}
}