#!/bin/bash

# Config file location
cfg_file=

effect="denoiser"
gpu="t4"
ulimit_val=0
sample_rate=16
output_sample_rate=48
batch_size=1
reset=
multi_input=""
frame_size=10;
enable_vad=
input_file=

args=()

declare -A gpu_map=( ["a100"]="sm_80"
                     ["a30"]="sm_80"
                     ["a2"]="sm_86"
                     ["a10"]="sm_86"
                     ["a16"]="sm_86"
                     ["a40"]="sm_86"
                     ["t4"]="sm_75"
                     ["v100"]="sm_70"
                    )

gpu_list=$(IFS=/; printf "%s" "${!gpu_map[*]}")

declare -A supported_effects=( ["denoiser"]="16 48"
                               ["dereverb"]="16 48"
                               ["dereverb_denoiser"]="16 48"
                               ["aec"]="16 48"
                               ["superres"]="8_to_16 16_to_48 8_to_48"
                             )

supported_effects_list=$(IFS=/; printf "%s" "${!supported_effects[*]}")

while [[ "$#" -gt 0 ]]; do
    args+=($1)
    case $1 in
        -e|--effect) effect="$2"; args+=($2); shift ;;
        -g|--gpu) gpu="$2"; args+=($2); shift ;;
        -u|--ulimit) ulimit_val="$2"; args+=($2); shift ;;
        -s|--sample_rate) sample_rate="$2"; args+=($2); shift ;;
        -o|--output_sample_rate) output_sample_rate="$2"; args+=($2); shift ;;
        -b|--batch_size) batch_size="$2"; args+=($2); shift ;;
        -c|--cfg-file) cfg_file="$2"; args+=($2); shift;;
        -r|--reset) multi_input="0,1,2,3,4" reset="reset 2 3 5";;
        -f|--frame_size) frame_size="$2"; args+=($2); shift;;
        -v|--enable_vad) enable_vad=1;;
        -i|--input_file) input_file="$2"; unset 'args[${#args[@]}-1]'; shift;;
        -h|--help) echo -e "-g, --gpu : $gpu_list [default=t4]"
                   echo -e "-e, --effect : effect to use: $supported_effects_list [default=denoiser]"
                   echo -e "-u, --ulimit : raise files open ulimit, this is used when running larger batch sizes that exceed the kernel maximum open files limit. Warning: Use this option with caution. [default=0(unusued)]"
                   echo -e "-s, --sample_rate : sample rate to use 8/16/48 (in kHz). [default=16]"
                   echo -e "-o, --output_sample_rate : output sample rate to use 16/48 (in kHz). [default=48]"
                   echo -e "-b, --batch_size : batch size to use. [default=1, max=1024]"
                   echo -e "-c, --cfg-file: configuration file to write to"
                   echo -e "-f, --frame_size: frame size to be used 10/20ms. [default=10]"
                   echo -e "-v, --enable_vad: Enable VAD. Refer to the Programming Guide for supported effects. [default=disabled]"
                   echo -e "-i, --input_file: file/folder to be used as input, instead of using sample input files (file must be in correct format)"
                   echo -e "-h, --help: print this help menu";exit;;
        *) echo "Unknown parameter passed: $1"; exit 1 ;;
    esac
    shift
done

# Verify if effect is supported
if [ "$effect" == "superres" ]; then
  rate_check="${sample_rate}_to_${output_sample_rate}"
else
  rate_check="$sample_rate"
fi

if [ -z "${supported_effects[$effect]:-}" ]; then
  echo "Invalid effect (got $effect, supported $supported_effects_list)"
  exit 1
fi

rate_supported="${supported_effects[$effect]}"
check_val="\b$rate_check\b"
if ! [[ "$rate_supported" =~ $check_val ]]; then
  if [ "$effect" == "superres" ]; then
    cv=${rate_supported// /, }
    echo "Sample rate combination '$sample_rate -> $output_sample_rate' is not supported for Superres (supported combinations: ${cv//_to_/ -> }"
  else
    echo "Sample rate '$rate_check' is not supported for this effect (supported: ${rate_supported// /, })"
  fi
  exit 1
fi

# Validate GPU
if [ -z "${gpu_map[$gpu]:-}" ]; then
  echo "Invalid GPU (got $gpu, supported $gpu_list)"
  exit 1
fi
arch="${gpu_map[$gpu]}"

model="../../models"
if [ "$effect" == "superres" ]; then
  model="${model}/${arch}/${effect}_${sample_rate}k_to_${output_sample_rate}k.trtpkg"
else
  model="${model}/${arch}/${effect}_${sample_rate}k.trtpkg"
fi

if [ ! -f "$model" ]; then
  echo "Model file not found (using '$model')"
  exit 1
fi

OUT_DIR="${effect}/${sample_rate}k"
mkdir -p "$OUT_DIR"
input_list=""
out_file=""
if [ ! -z "$input_file" ]; then
  if [[ ! (-f "$input_file" || -d "$input_file") ]]; then
    echo "Error: File/folder '$input_file' does not exist"
    exit 1
  fi
  if [ $(($batch_size)) -ne 1 ]; then
    echo "Error: Batch size must be 1 when input file/folder is specified (got $batch_size)"
    exit 1
  fi
  if [ -d "$input_file" ]; then
    if [ ! -z "$cfg_file" ]; then
      echo "Error: config file cannot be specified if input is a folder"
      exit 1
    fi
    # If folder, process file by file for all files in that folder
    for i in "${input_file}"/*.wav; do
      ./$0 "${args[@]}" -i "$i"
      if [ $? -ne 0 ]; then
        echo "Error processing file '$i'"
        exit 1
      fi
    done
    exit 0
  else
    input_list="input_wav_list $input_file"
    out_file="$OUT_DIR/$(basename $input_file)"
  fi
else
    if [ "$effect" == "aec" ]; then
        farend_wav=$(./list.sh ../input_files/aec/${sample_rate}k/farend ${batch_size} ${multi_input})
        if [ $? -ne 0 ]; then
            echo "Error generating input files list"
            echo "Command returned: $farend_wav"
            exit 1
        fi
        nearend_wav=${farend_wav//farend/nearend}
        input_list="input_wav_list $nearend_wav
input_farend_wav_list $farend_wav"
    else
        wav=$(./list.sh ../input_files/${effect}/${sample_rate}k/ ${batch_size} ${multi_input})
        if [ $? -ne 0 ]; then
            echo "Error generating input files list"
            echo "Command returned: $wav"
            exit 1
        fi
        input_list="input_wav_list $wav"
    fi

    for i in $(seq 1 $batch_size); do
        out_file="$out_file $OUT_DIR/${effect}_${sample_rate}k_$i.wav"
    done
fi

if [ -z "$cfg_file" ]; then
  cfg_file="/tmp/tmp_cfg.txt"
fi

echo "effect ${effect}
sample_rate ${sample_rate}000
model ${model}
real_time 0
intensity_ratio 1.0
$input_list
output_wav_list $out_file
frame_size ${frame_size}" > $cfg_file

if [ ! -z "$reset" ]; then
  if [ $batch_size -lt 5 ]; then
    echo "Batch size must be at least 5 for reset configs"
    exit 1
  fi
  echo "$reset" >> $cfg_file
fi

if [ ! -z "$enable_vad" ]; then
  echo "enable_vad 1" >> $cfg_file
fi

echo "Using the config file $cfg_file"

if [ "$ulimit_val" -ne "0" ]; then
   if [ "$ulimit_val" -le "1024" ]; then
      echo "You probably dont want to do this. ulimit is too low.";
      exit;
   fi
   echo "ulimit set to ${ulimit_val}";
   ulimit -n $ulimit_val
   exit;
fi

./effects_demo -c $cfg_file