#!/bin/bash

# NBMrec 
# nocturnal bird migration recorder daemon
# by Samuel ORTION

RECORD_DIR="/mnt/DATA/media/records"
RECORD_DATE=$(date +"%Y-%m-%d")
RECORD_FILENAME=$(date +"%Y%m%d_%H%M%S")
RECORD_FILEPATH="${RECORD_DIR}/${RECORD_DATE}/${RECORD_FILENAME}.wav" 
RECORD_DURATION=60

usage() {
    echo "Usage: $0 [ -d <duration> ] [ -f <filename> ]"
    echo "  -d <duration> : duration of the recording in seconds or 'night' for all night recording"
    echo "  -f <filename> : filename of the recording"
    echo "  -h            : display this help"
    echo "  -v            : switch to verbose mode"
}

# Get command line options
while getopts ":hd:f:" opt; do
  case $opt in
    h) 
      usage
      ;;
    d)
      RECORD_DURATION=$OPTARG
      if [ "$RECORD_DURATION" == "night" ]; then
        RECORD_DURATION=32400
      fi
      ;;
    f)
      RECORD_FILEPATH=$OPTARG
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      exit 1
      ;;
    :)
      echo "Option -$OPTARG requires an argument." >&2
      exit 1
      ;;
  esac
done

verbose=false

main() {
    # Create output folder
    if $verbose
    then
        echo "Creating record output folder"
    fi
    mkdir -p "$RECORD_DIR/$RECORD_DATE/"

    # Perform recording
    if $verbose
    then
        echo "Recording $RECORD_FILENAME"
    fi
    rec -b 16 -r 48000 -c 1 -t wav $RECORD_FILEPATH trim 0 $RECORD_DURATION

    if $verbose
    then
        echo "Done"
    fi
}

main
exit 0