#!/bin/bash

# Used for debugging
# set -ax

# This script is required after a reboot of the cloud after the cloud has been
# shut down

get_lead()
{
    app_name=$1

    cat ${juju_status} | jq -rc ".applications.\"${app_name}\".units | to_entries[] | select(.value.leader == "true") | .key"
}

do_vault()
{
    vault_vip=$(juju config vault vip)
    echo export VAULT_ADDR="http://${vault_vip}:8200"
    export VAULT_ADDR="http://${vault_vip}:8200"

    echo " "

    IPS=$(cat ${juju_status} | jq '.applications.vault.units | to_entries[] | .value."public-address"' | sed s/\"//g)

    for ip in $IPS;do
      echo export VAULT_ADDR=http://${ip}:8200;
      export VAULT_ADDR=http://${ip}:8200;
      for vault_key in $(head -n3 vault-secrets.txt | awk '{print $4}');do
        echo vault operator unseal -tls-skip-verify $vault_key
        vault operator unseal -tls-skip-verify $vault_key
      done;
    done;

    juju run -a vault "hooks/update-status"
}

juju-wait -v

juju_status=$(mktemp)

juju status --format json > ${juju_status}

mysql_status=$(cat ${juju_status} | jq -rc ".applications.\"mysql-innodb-cluster\".units | to_entries[] | {sub:.key,status:.value[\"workload-status\"].message}")

mysql_units=$(echo ${mysql_status} | jq .sub | sed s/\"//g)
bootstrap_unit=""

mysql_lead=$(get_lead mysql-innodb-cluster)

reboot_status=$(juju run-action mysql-innodb-cluster/leader reboot-cluster-from-complete-outage --wait --format json)
 
outcome=$(echo $reboot_status| jq .[].results.outcome)

if [[ ${outcome} == null ]] ; then

  output=$(echo $reboot_status| jq .[].results.output)

  mysql_ip=$(echo $output | sed -e 's/\\n/\n/g' 2>&1| grep Please | sed -e "s|.*Please use the most up to date instance: '\(.*\):.*|\1|")

  bootstrap_unit=$(cat ${juju_status} | jq ".applications.\"mysql-innodb-cluster\".units | to_entries[] | select(.value.\"public-address\" == \"${mysql_ip}\") | .key" | sed s/\"//g)

  juju run-action ${bootstrap_unit} reboot-cluster-from-complete-outage --wait

fi

juju run --application mysql-innodb-cluster "hooks/update-status"

# Run update-status on all mysql-router units, to ensure that theyave connected to the mysql-innodb-cluster
cat ${juju_status} | jq ".applications | to_entries[] | select(.value[\"charm-name\"] == \"mysql-router\") | .key" | sed s/\"//g | xargs -i juju run -a "{}" -- 'hooks/update-status'

juju run -a heat -- sudo systemctl restart heat-engine &
juju run -a vault -- sudo systemctl restart vault &

wait

for app in heat vault ; do
  juju run -a $app "hooks/update-status" &
done

wait

# cleanup all crm resources
cat ${juju_status} | jq ".applications | to_entries[] | select(.value[\"charm-name\"] == \"hacluster\") | .key" | sed s/\"//g | xargs -i juju run --unit "{}"/leader -- 'sudo crm_resource -l | sed s/:.*//g | uniq | xargs -i sudo crm resource cleanup \"\{\}\"'

do_vault

# Wait 10 seconds, and ensure that vault is unsealed
echo "Sleeping 10 seconds to wait for vault to finalise unseal"
sleep 10

ceph_osd_apps=$(cat ${juju_status} | jq -rc ".applications | to_entries[] | select(.value[\"charm-name\"] == \"ceph-osd\") | .key")

ceph_osds=""
for apps in ${ceph_osd_apps}
do
  ceph_osds="${ceph_osds} $(cat ${juju_status} | jq -rc ". | .applications[\"${apps}\"].units | to_entries[] | .key")"
done


for ceph_osd in ${ceph_osds}
do
  juju ssh ${ceph_osd} -- 'sudo systemctl kill --all --type=service vaultlocker-decrypt@* ;
    sudo systemctl start --all --type=service vaultlocker-decrypt@* ;
    sudo systemctl start --all --type=service ceph-volume@*' &
done

wait

juju run -a ceph-osd "hooks/update-status"

lds_servers=$(cat ${juju_status} | jq -rc ". | .applications[\"landscape-server\"].units | to_entries[] | .key")

cat > /tmp/restart-landscape.sh << EOF
#!/bin/bash

sudo systemctl restart landscape-*
EOF

for lds_server in ${lds_servers}
do
  juju scp /tmp/restart-landscape.sh ${lds_server}:.
  juju ssh ${lds_server} chmod +x restart-landscape.sh
  juju ssh ${lds_server} sudo ./restart-landscape.sh &
done

wait

juju run --all -- sudo systemctl restart systemd-resolved