#!/usr/bin/env bash

usage() {
  echo -n "Usage: $0 [-h <host (hs01*/cloud21)>]"
  echo -n " [-d <YYYYMMDD> (yesterday*)]"
  echo -n " [-s <source> (cloud28/cloud21*)>]"
  echo " [-t <target_dir> (/opt/jupyter_gpu/data/crypto_md)]"
  exit 1
}

is_valid() {
  local inst=$1
  shift
  local valid_instances=("$@")

  for valid_inst in "${valid_instances[@]}";
  do
    if [[ "$inst" == "$valid_inst" ]]; then
      return 0
    fi
  done
  return 1
}

# ------- D E F A U L T S
date=""
host=hs01
source=cloud21
TargetDir="/opt/jupyter_gpu/data/crypto_md"
# ------- D E F A U L T S


while getopts ":h:d:s:t:" opt; do
  case ${opt} in
    d )
      date=$OPTARG
      ;;
    h )
      host=$OPTARG
      ;;
    s )
      source=$OPTARG
      ;;
    t )
      TargetDir=$OPTARG
      ;;
    \? )
      echo "Invalid option: -$OPTARG" >&2
      usage
      ;;
    : )
      echo "Option -$OPTARG requires an argument." >&2
      usage
      ;;
  esac
done

if [ "${date}" == "" ] ; then
    date="yesterday"
fi

echo "$date $host $source"

valid_hosts=('hs01' 'cloud21')
if ! is_valid "${host}"  "${valid_hosts[@]}" ; then
    echo "Host '${host}' is not valid"
    usage
fi

valid_sources=('cloud21' 'cloud28')
if ! is_valid ${source} ${valid_sources[@]} ; then
    echo "Source '${source}' is not valid"
    usage
fi

if [ "${host}" == "cloud21" ] ; then
    SourceHost=cloud21.cvtt.vpn
    SourceUser=cvtt
    SourceRootDir="/opt/store/cvtt/md_archive/crypto/${source}"
elif [ "${host}" == "hs01" ]; then
    SourceHost=hs01.cvtt.vpn
    SourceUser=cvtt
    SourceRootDir=/works/cvtt/md_archive/crypto/${source}
else
    usage
fi

echo "${SourceHost} ${SourceUser} ${SourceRootDir}"


SourceFile=$(date -d ${date} "+%Y%m%d.mktdata.db")
SourceFileZip="${SourceFile}.gz"
SourceFilePath=$(date -d ${date} "+${SourceRootDir}/%Y/%m/${SourceFileZip}")

TargetFile=$(date -d ${date} "+%Y%m%d.mktdata.ohlcv.db")
TargetFilePath="${TargetDir}/${TargetFile}"

# Tables=(bnbfut_ohlcv_1min bnbspot_ohlcv_1min coinbase_ohlcv_1min)
Tables=(bnbspot_ohlcv_1min coinbase_ohlcv_1min)


echo ${SourceFile}
tmp_dir=$(mktemp -d)

function cleanup {
    cd ${HOME}
    rm -rf ${tmp_dir}
}
trap cleanup EXIT

function download_file {

    Cmd="rsync"
    Cmd="${Cmd} -ahv"
    if tty -s; then
        Cmd="${Cmd} --progress=info2"
    fi
    Cmd="${Cmd} ${SourceUser}@${SourceHost}:${SourceFilePath} ${tmp_dir}/"
    echo ${Cmd}
    eval ${Cmd}
    ls -lh ${tmp_dir}
    Cmd="gunzip ${tmp_dir}/${SourceFileZip}"
    echo ${Cmd} && eval ${Cmd}
    ls -lh ${tmp_dir}

    rm -f ${TargetFilePath}
    touch ${TargetFilePath}

    for table in "${Tables[@]}"
    do
        Cmd="sqlite3 ${tmp_dir}/${SourceFile} \".dump ${table}\" | sqlite3 ${TargetFilePath}"
        echo ${Cmd}
        eval ${Cmd}
    done
    chmod 600 ${TargetFilePath}
    ls -lh ${TargetFilePath}

}
download_file