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#include "session/ime_switch_util.h"

#include <string>

#include "base/system_util.h"
#include "config/config.pb.h"
#include "config/config_handler.h"
#include "session/commands.pb.h"
#include "session/internal/keymap.h"
#include "session/key_parser.h"
#include "testing/base/public/googletest.h"
#include "testing/base/public/gunit.h"

namespace mozc {
namespace config {

class ImeSwitchUtilTest : public testing::Test {
 protected:
  virtual void SetUp() {
    ImeSwitchUtil::Reload();
    SystemUtil::SetUserProfileDirectory(FLAGS_test_tmpdir);
  }
};

TEST_F(ImeSwitchUtilTest, PresetTest) {
  Config config;
  ConfigHandler::GetConfig(&config);
  config.set_session_keymap(Config::ATOK);
  ConfigHandler::SetConfig(config);
  ImeSwitchUtil::Reload();
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("HENKAN", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("EISU", &key);
    EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ON", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    // Reconcersion
    commands::KeyEvent key;
    KeyParser::ParseKey("Shift HENKAN", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }

  config.set_session_keymap(Config::MSIME);
  ConfigHandler::SetConfig(config);
  ImeSwitchUtil::Reload();
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("HENKAN", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("EISU", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ON", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }

  config.set_session_keymap(Config::KOTOERI);
  ConfigHandler::SetConfig(config);
  ImeSwitchUtil::Reload();
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("HENKAN", &key);
    EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("EISU", &key);
    EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ON", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    // Reconcersion
    commands::KeyEvent key;
    KeyParser::ParseKey("Ctrl Shift r", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
}

TEST_F(ImeSwitchUtilTest, DefaultTest) {
  Config config;
  ConfigHandler::GetConfig(&config);
  config.set_session_keymap(Config::NONE);
  ConfigHandler::SetConfig(config);
  ImeSwitchUtil::Reload();
  // MSIME for windows, KOTOERI for others
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("HENKAN", &key);
    // HENKAN key in MSIME is TurnOn key while it's not in KOTOERI.
    if (ConfigHandler::GetDefaultKeyMap() == config::Config::MSIME) {
      EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
    } else {
      EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
    }
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("EISU", &key);
    if (ConfigHandler::GetDefaultKeyMap() == config::Config::MSIME) {
      EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
    } else {
      EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
    }
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ON", &key);
    key.set_special_key(commands::KeyEvent::ON);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
}

TEST_F(ImeSwitchUtilTest, CustomTest) {
  Config config;
  ConfigHandler::GetConfig(&config);

  const string custom_keymap_table =
      "status\tkey\tcommand\n"
      "DirectInput\tHenkan\tIMEOn\n"
      "DirectInput\tCtrl j\tIMEOn\n"
      "DirectInput\tCtrl k\tIMEOff\n"
      "DirectInput\tCtrl l\tLaunchWordRegisterDialog\n"
      "Precomposition\tCtrl m\tIMEOn\n";

  config.set_session_keymap(Config::CUSTOM);
  config.set_custom_keymap_table(custom_keymap_table);
  ConfigHandler::SetConfig(config);
  ImeSwitchUtil::Reload();
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("HENKAN", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("EISU", &key);
    EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ctrl j", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ctrl k", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ctrl l", &key);
    EXPECT_TRUE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
  {
    commands::KeyEvent key;
    KeyParser::ParseKey("ctrl m", &key);
    EXPECT_FALSE(ImeSwitchUtil::IsDirectModeCommand(key));
  }
}

}  // namespace config
}  // namespace mozc