problem-download

#!/bin/bash -x
root=$(cd $(dirname $0) && pwd)
cd $root

a=$(cat snapshot | jq -r '.snapshots[] | .snapshot_hash ' | tail -n 1)
b=$(cat lasthash)
if [ "$a" == "$b" ]; then
  echo "Same snapshots"
  exit 0
fi


echo "update problems.json"
./api-blob $a > problems.json
ret_code=$?
if [ $ret_code != 0 ]; then
  echo "Failed to download problems.json"
  exit 1
fi



function download() {
  id=$1
  h=$(echo $2 | sed -e "s/'//g")
  if [ -e "problems/${id}.txt" ]; then
    echo "Problem $id is already downloaded."
  else
    while true; do
    ./api-blob ${h} > "problems/${id}.txt"
    ret_code=$?
    if [ $ret_code != 0 ]; then
      echo "wait for retry.."
      sleep 3
    else
      sleep 3
      break
    fi
    done
  fi
}

cat problems.json | jq -r ".problems[] | [.problem_id, .problem_spec_hash] | @sh" | while read line; do
  download $line
done

echo $a > "lasthash"