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#include "rewriter/zipcode_rewriter.h"

#include <memory>
#include <string>

#include "base/logging.h"
#include "config/config_handler.h"
#include "converter/segments.h"
#include "data_manager/testing/mock_data_manager.h"
#include "dictionary/pos_matcher.h"
#include "protocol/config.pb.h"
#include "request/conversion_request.h"
#include "testing/base/public/gunit.h"
#include "testing/base/public/mozctest.h"

using mozc::dictionary::POSMatcher;

namespace mozc {
namespace {

enum SegmentType {
  ZIPCODE = 1,
  NON_ZIPCODE = 2,
};

void AddSegment(const std::string &key, const std::string &value,
                SegmentType type, const POSMatcher &pos_matcher,
                Segments *segments) {
  segments->Clear();
  Segment *seg = segments->push_back_segment();
  seg->set_key(key);
  Segment::Candidate *candidate = seg->add_candidate();
  candidate->Init();
  candidate->value = key;
  candidate->content_key = key;
  candidate->content_value = value;

  if (type == ZIPCODE) {
    candidate->lid = pos_matcher.GetZipcodeId();
    candidate->rid = pos_matcher.GetZipcodeId();
  }
}

bool HasZipcodeAndAddress(const Segments &segments,
                          const std::string &expected) {
  CHECK_EQ(segments.segments_size(), 1);
  for (size_t i = 0; i < segments.segment(0).candidates_size(); ++i) {
    const Segment::Candidate &candidate = segments.segment(0).candidate(i);
    if (candidate.description == "郵便番号と住所") {
      if (candidate.content_value == expected) {
        return true;
      }
    }
  }
  return false;
}

}  // namespace

class ZipcodeRewriterTest : public ::testing::Test {
 protected:
  void SetUp() override {
    pos_matcher_.Set(mock_data_manager_.GetPOSMatcherData());
  }

  ZipcodeRewriter *CreateZipcodeRewriter() const {
    return new ZipcodeRewriter(&pos_matcher_);
  }

  dictionary::POSMatcher pos_matcher_;

 private:
  const testing::ScopedTmpUserProfileDirectory tmp_profile_dir_;
  const testing::MockDataManager mock_data_manager_;
};

TEST_F(ZipcodeRewriterTest, BasicTest) {
  std::unique_ptr<ZipcodeRewriter> zipcode_rewriter(CreateZipcodeRewriter());

  const std::string kZipcode = "107-0052";
  const std::string kAddress = "東京都港区赤坂";
  ConversionRequest request;
  config::Config config;
  request.set_config(&config);

  {
    Segments segments;
    AddSegment("test", "test", NON_ZIPCODE, pos_matcher_, &segments);
    EXPECT_FALSE(zipcode_rewriter->Rewrite(request, &segments));
  }

  {
    config.set_space_character_form(config::Config::FUNDAMENTAL_HALF_WIDTH);

    Segments segments;
    AddSegment(kZipcode, kAddress, ZIPCODE, pos_matcher_, &segments);
    zipcode_rewriter->Rewrite(request, &segments);
    EXPECT_TRUE(HasZipcodeAndAddress(segments, kZipcode + " " + kAddress));
  }

  {
    config.set_space_character_form(config::Config::FUNDAMENTAL_FULL_WIDTH);

    Segments segments;
    AddSegment(kZipcode, kAddress, ZIPCODE, pos_matcher_, &segments);
    zipcode_rewriter->Rewrite(request, &segments);
    EXPECT_TRUE(HasZipcodeAndAddress(segments,
                                     // full-width space
                                     kZipcode + "　" + kAddress));
  }
}

}  // namespace mozc