#!/bin/bash
  #set -e
  # this script is based on local/multicondition/run_nnet2_common.sh
  # minor corrections were made to dir names for nnet3
  
  stage=1
  snrs="20:10:15:5:0"
  foreground_snrs="20:10:15:5:0"
  background_snrs="20:10:15:5:0"
  num_data_reps=3
  base_rirs="simulated"
  
  set -e
  . ./cmd.sh
  . ./path.sh
  . ./utils/parse_options.sh
  
  # check if the required tools are present
  local/multi_condition/check_version.sh || exit 1;
  
  mkdir -p exp/nnet3
  if [ $stage -le 1 ]; then
    # Download the package that includes the real RIRs, simulated RIRs, isotropic noises and point-source noises
    wget --no-check-certificate http://www.openslr.org/resources/28/rirs_noises.zip
    unzip rirs_noises.zip
  
    rvb_opts=()
    if [ "$base_rirs" == "simulated" ]; then
      # This is the config for the system using simulated RIRs and point-source noises
      rvb_opts+=(--rir-set-parameters "0.5, RIRS_NOISES/simulated_rirs/smallroom/rir_list")
      rvb_opts+=(--rir-set-parameters "0.5, RIRS_NOISES/simulated_rirs/mediumroom/rir_list")
      rvb_opts+=(--noise-set-parameters RIRS_NOISES/pointsource_noises/noise_list)
    else
      # This is the config for the JHU ASpIRE submission system
      rvb_opts+=(--rir-set-parameters "1.0, RIRS_NOISES/real_rirs_isotropic_noises/rir_list")
      rvb_opts+=(--noise-set-parameters RIRS_NOISES/real_rirs_isotropic_noises/noise_list)
    fi
  
    # corrupt the fisher data to generate multi-condition data
    # for data_dir in train dev test; do
    for data_dir in train dev test; do
      if [ "$data_dir" == "train" ]; then
        num_reps=$num_data_reps
      else
        num_reps=1
      fi
      python steps/data/reverberate_data_dir.py \
        "${rvb_opts[@]}" \
        --prefix "rev" \
        --foreground-snrs $foreground_snrs \
        --background-snrs $background_snrs \
        --speech-rvb-probability 1 \
        --pointsource-noise-addition-probability 1 \
        --isotropic-noise-addition-probability 1 \
        --num-replications $num_reps \
        --max-noises-per-minute 1 \
        --source-sampling-rate 8000 \
        data/${data_dir} data/${data_dir}_rvb
    done
  fi
  
  
  if [ $stage -le 2 ]; then
    mfccdir=mfcc_reverb
    if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $mfccdir/storage ]; then
      date=$(date +'%m_%d_%H_%M')
      utils/create_split_dir.pl /export/b0{1,2,3,4}/$USER/kaldi-data/mfcc/aspire-$date/s5/$mfccdir/storage $mfccdir/storage
    fi
  
    for data_dir in train_rvb dev_rvb test_rvb dev_aspire dev test ; do
      utils/copy_data_dir.sh data/$data_dir data/${data_dir}_hires
      steps/make_mfcc.sh --nj 70 --mfcc-config conf/mfcc_hires.conf \
          --cmd "$train_cmd" data/${data_dir}_hires \
          exp/make_reverb_hires/${data_dir} $mfccdir || exit 1;
      steps/compute_cmvn_stats.sh data/${data_dir}_hires exp/make_reverb_hires/${data_dir} $mfccdir || exit 1;
      utils/fix_data_dir.sh data/${data_dir}_hires
      utils/validate_data_dir.sh data/${data_dir}_hires
    done
  
    utils/subset_data_dir.sh data/train_rvb_hires 100000 data/train_rvb_hires_100k
    utils/subset_data_dir.sh data/train_rvb_hires 30000 data/train_rvb_hires_30k
  fi
  
  if [ $stage -le 3 ]; then
    steps/online/nnet2/get_pca_transform.sh --cmd "$train_cmd" \
      --splice-opts "--left-context=3 --right-context=3" \
      --max-utts 30000 --subsample 2 \
      data/train_rvb_hires exp/nnet3/pca_transform
  fi
  
  if [ $stage -le 4 ]; then
    # To train a diagonal UBM we don't need very much data, so use the smallest
    # subset.
    steps/online/nnet2/train_diag_ubm.sh --cmd "$train_cmd" --nj 30 --num-frames 400000 \
      data/train_rvb_hires_30k 512 exp/nnet3/pca_transform \
      exp/nnet3/diag_ubm
  fi
  
  if [ $stage -le 5 ]; then
    # iVector extractors can in general be sensitive to the amount of data, but
    # this one has a fairly small dim (defaults to 100) so we don't use all of it,
    # we use just the 100k subset (about one sixteenth of the data).
    steps/online/nnet2/train_ivector_extractor.sh --cmd "$train_cmd" --nj 10 \
      data/train_rvb_hires_100k exp/nnet3/diag_ubm \
      exp/nnet3/extractor || exit 1;
  fi
  
  if [ $stage -le 6 ]; then
    ivectordir=exp/nnet3/ivectors_train_rvb
    if [[ $(hostname -f) == *.clsp.jhu.edu ]]; then # this shows how you can split across multiple file-systems.
      utils/create_split_dir.pl /export/b0{1,2,3,4}/$USER/kaldi-data/ivectors/aspire/s5/$ivectordir/storage $ivectordir/storage
    fi
  
    # having a larger number of speakers is helpful for generalization, and to
    # handle per-utterance decoding well (iVector starts at zero).
    steps/online/nnet2/copy_data_dir.sh --utts-per-spk-max 2 \
      data/train_rvb_hires data/train_rvb_hires_max2
  
    steps/online/nnet2/extract_ivectors_online.sh --cmd "$train_cmd" --nj 60 \
      data/train_rvb_hires_max2 exp/nnet3/extractor $ivectordir || exit 1;
  fi