#!/bin/bash
#
# Copyright 2020 PingCAP, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -eux
DB="$TEST_NAME"
TABLE="usertable"
DB_COUNT=3
CUR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

# start Minio KMS service
# curl -sSL --tlsv1.2 \
#     -O 'https://raw.githubusercontent.com/minio/kes/master/root.key' \
#     -O 'https://raw.githubusercontent.com/minio/kes/master/root.cert'

rm -rf ./keys
rm -f server.key server.cert
bin/kes tool identity new --server --key server.key --cert server.cert --ip "127.0.0.1" --dns localhost


# create private key and cert for restoration
rm -f root.key root.cert
bin/kes tool identity new --key=root.key --cert=root.cert root

bin/kes server --key=server.key --cert=server.cert --root=$(kes tool identity of root.cert) --auth=off &
KES_pid=$!
trap 'kill -9 $KES_pid' EXIT

sleep 5

export KES_CLIENT_CERT=root.cert
export KES_CLIENT_KEY=root.key 
bin/kes key create -k my-minio-key

export MINIO_KMS_KES_ENDPOINT=https://127.0.0.1:7373
export MINIO_KMS_KES_CERT_FILE=root.cert
export MINIO_KMS_KES_KEY_FILE=root.key
export MINIO_KMS_KES_CA_PATH=server.cert
export MINIO_KMS_KES_KEY_NAME=my-minio-key


# start the s3 server
export MINIO_ACCESS_KEY='KEXI7MANNASOPDLAOIEF'
export MINIO_SECRET_KEY='MaKYxEGDInMPtEYECXRJLU+FPNKb/wAX/MElir7E'
export MINIO_BROWSER=off
export AWS_ACCESS_KEY_ID=$MINIO_ACCESS_KEY
export AWS_SECRET_ACCESS_KEY=$MINIO_SECRET_KEY
export S3_ENDPOINT=127.0.0.1:24927

rm -rf "$TEST_DIR/$DB"
mkdir -p "$TEST_DIR/$DB"

start_s3() {
    bin/minio server --address $S3_ENDPOINT "$TEST_DIR/$DB" &
    s3_pid=$!
    i=0
    while ! curl -o /dev/null -v -s "http://$S3_ENDPOINT/"; do
        i=$(($i+1))
        if [ $i -gt 30 ]; then
            echo 'Failed to start minio'
            exit 1
        fi
        sleep 2
    done
}

start_s3
echo "started s3 with pid = $s3_pid"

bin/mc config --config-dir "$TEST_DIR/$TEST_NAME"  \
    host add minio http://$S3_ENDPOINT $MINIO_ACCESS_KEY $MINIO_SECRET_KEY

# Fill in the database
for i in $(seq $DB_COUNT); do
    run_sql "CREATE DATABASE $DB${i};"
    go-ycsb load mysql -P $CUR/workload -p mysql.host=$TIDB_IP -p mysql.port=$TIDB_PORT -p mysql.user=root -p mysql.db=$DB${i}
done

bin/mc mb --config-dir "$TEST_DIR/$TEST_NAME" minio/mybucket
S3_KEY=""
for p in $(seq 2); do

  for i in $(seq $DB_COUNT); do
      row_count_ori[${i}]=$(run_sql "SELECT COUNT(*) FROM $DB${i}.$TABLE;" | awk '/COUNT/{print $2}')
  done

  # backup full
  echo "backup start..."
  BACKUP_LOG="backup.log"
  rm -f $BACKUP_LOG
  unset BR_LOG_TO_TERM

  # using --s3.sse AES256 to ensure backup file are encrypted
  run_br --pd $PD_ADDR backup full -s "s3://mybucket/$DB?endpoint=http://$S3_ENDPOINT$S3_KEY" \
      --log-file $BACKUP_LOG \
      --s3.sse AES256
    
# ensure the tikv data file are encrypted
tikv-ctl --config=$CUR/../config/tikv.toml encryption-meta dump-file | grep "Aes256Ctr"


  for i in $(seq $DB_COUNT); do
      run_sql "DROP DATABASE $DB${i};"
  done

  # restore full
  echo "restore start..."
  RESTORE_LOG="restore.log"
  rm -f $RESTORE_LOG
  unset BR_LOG_TO_TERM
  run_br restore full -s "s3://mybucket/$DB?$S3_KEY" --pd $PD_ADDR --s3.endpoint="http://$S3_ENDPOINT" \
      --log-file $RESTORE_LOG 

  for i in $(seq $DB_COUNT); do
      row_count_new[${i}]=$(run_sql "SELECT COUNT(*) FROM $DB${i}.$TABLE;" | awk '/COUNT/{print $2}')
  done

  fail=false
  for i in $(seq $DB_COUNT); do
      if [ "${row_count_ori[i]}" != "${row_count_new[i]}" ];then
          fail=true
          echo "TEST: [$TEST_NAME] fail on database $DB${i}"
      fi
      echo "database $DB${i} [original] row count: ${row_count_ori[i]}, [after br] row count: ${row_count_new[i]}"
  done

  if $fail; then
      echo "TEST: [$TEST_NAME] failed!"
      exit 1
  fi

  # prepare for next test
  bin/mc rm --config-dir "$TEST_DIR/$TEST_NAME" --recursive --force minio/mybucket
  S3_KEY="&access-key=$MINIO_ACCESS_KEY&secret-access-key=$MINIO_SECRET_KEY"
  export AWS_ACCESS_KEY_ID=""
  export AWS_SECRET_ACCESS_KEY=""
done

for i in $(seq $DB_COUNT); do
    run_sql "DROP DATABASE $DB${i};"
done