// Copyright (c) 2022  Binbin Zhang (binbzha@qq.com)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "api/wenet_api.h"
#include "frontend/wav.h"
#include "utils/flags.h"

DEFINE_string(model_dir, "", "model dir path");
DEFINE_string(wav_path, "", "single wave path");
DEFINE_bool(enable_timestamp, false, "enable timestamps");

int main(int argc, char* argv[]) {
  gflags::ParseCommandLineFlags(&argc, &argv, false);
  google::InitGoogleLogging(argv[0]);

  wenet_set_log_level(2);

  void* decoder = wenet_init(FLAGS_model_dir.c_str());
  wenet_set_timestamp(decoder, FLAGS_enable_timestamp == true ? 1 : 0);
  wenet::WavReader wav_reader(FLAGS_wav_path);
  std::vector<int16_t> data(wav_reader.num_samples());
  for (int i = 0; i < wav_reader.num_samples(); i++) {
    data[i] = static_cast<int16_t>(*(wav_reader.data() + i));
  }

  for (int i = 0; i < 10; i++) {
    // Return the final result when last is 1
    const char* result =
        wenet_decode(decoder, reinterpret_cast<const char*>(data.data()),
                     data.size() * 2, 1);
    LOG(INFO) << i << " " << result;
    wenet_reset(decoder);
  }
  wenet_free(decoder);
  return 0;
}