#!/bin/bash

function usage {
  echo "Usage: crdb -n|--name <DB_NAME> -v|--version <11.2.0.4|12.1|12.2|19|21>"
}

########
# MAIN #
########

# parameter processing
while [ "$1" != "" ]; do
    case $1 in
        -n | --name )         shift
                                DB_NAME="$1"
                                ;;
        -v | --version )         shift
                                VERSION="$1"
                                ;;
        * )                     usage
                                exit 1
    esac
    shift
done

if [ -z "${DB_NAME}" ] || [ -z "${VERSION}" ] 
then
    usage
    exit -2
fi

# version/template selection
if [ "$VERSION" == "21" ]; then
	. oraenv <<EOF!
	SET21
EOF!
	export ORACLE_SID=${DB_NAME}PRD
	BACKUP_DB_NAME=ASTY
    BACKUP_DIR=/mnt/yavin4/tmp/_oracle_/orabackup/_keep_/Standalone/21
    echo "spfile='${ORACLE_BASE}/admin/${ORACLE_SID}/spfile/spfile${ORACLE_SID}.ora'" > ${ORACLE_BASE}/dbs/init${ORACLE_SID}.ora
fi

if [ "$VERSION" == "19" ]; then
	. oraenv <<EOF!
	SET19
EOF!
	export ORACLE_SID=${DB_NAME}PRD
	BACKUP_DB_NAME=ASTY
    BACKUP_DIR=/mnt/yavin4/tmp/_oracle_/orabackup/_keep_/Standalone/19
    echo "spfile='${ORACLE_BASE}/admin/${ORACLE_SID}/spfile/spfile${ORACLE_SID}.ora'" > ${ORACLE_HOME}/dbs/init${ORACLE_SID}.ora
fi


if [ "$VERSION" == "11.2.0.4" ]; then
	. oraenv <<EOF!
	SET112
EOF!
	export ORACLE_SID=${DB_NAME}PRD
	BACKUP_DB_NAME=WEDGE
    BACKUP_DIR=/mnt/yavin4/tmp/_oracle_/orabackup/_keep_/Standalone/11.2.0.4
    echo "spfile='${ORACLE_BASE}/admin/${ORACLE_SID}/spfile/spfile${ORACLE_SID}.ora'" > ${ORACLE_HOME}/dbs/init${ORACLE_SID}.ora
fi


if [ -z "${BACKUP_DIR}" ]
then
      echo "No template found for this database version"
      exit -1
fi

# admin directories creation
mkdir -p ${ORACLE_BASE}/admin/${ORACLE_SID}/adump
mkdir -p ${ORACLE_BASE}/admin/${ORACLE_SID}/pfile
mkdir -p ${ORACLE_BASE}/admin/${ORACLE_SID}/spfile 
mkdir -p ${ORACLE_BASE}/admin/${ORACLE_SID}/divers

# not automaticly created in 11.2.0.4
mkdir -p /data/${ORACLE_SID}

# init and spfile creation
cp ${BACKUP_DIR}/init${BACKUP_DB_NAME}PRD.ora ${ORACLE_BASE}/admin/${ORACLE_SID}/pfile/init${ORACLE_SID}.ora
sed -i -r "s/${BACKUP_DB_NAME}/${DB_NAME}/" ${ORACLE_BASE}/admin/${ORACLE_SID}/pfile/init${ORACLE_SID}.ora

echo ${ORACLE_SID}
sqlplus /nolog <<EOF!
connect / as sysdba
create spfile='${ORACLE_BASE}/admin/${ORACLE_SID}/spfile/spfile${ORACLE_SID}.ora' from pfile='${ORACLE_BASE}/admin/${ORACLE_SID}/pfile/init${ORACLE_SID}.ora';
startup nomount;
EOF!

# duplicate from template
rman auxiliary / <<EOF!
run
{
  allocate auxiliary channel aux01 device type disk;
  allocate auxiliary channel aux02 device type disk;
  allocate auxiliary channel aux03 device type disk;
  allocate auxiliary channel aux04 device type disk;
  allocate auxiliary channel aux05 device type disk;
  allocate auxiliary channel aux06 device type disk;
  allocate auxiliary channel aux07 device type disk;
  allocate auxiliary channel aux08 device type disk;
  allocate auxiliary channel aux09 device type disk;
  allocate auxiliary channel aux10 device type disk;
  duplicate target database to ${DB_NAME} backup location '${BACKUP_DIR}/backupset/';
}
EOF!


sqlplus /nolog <<EOF!
connect / as sysdba
shutdown immediate;
startup;
EOF!


# apply last installed PSU
if [ "$VERSION" == "11.2.0.4" ]; then
  sqlplus /nolog <<EOF!
    connect / as sysdba
    @$ORACLE_HOME/rdbms/admin/catbundle psu apply
    @$ORACLE_HOME/rdbms/admin/utlrp
EOF!
else
  cd ${ORACLE_HOME}/OPatch
  ./datapatch
  sqlplus /nolog <<EOF!
    connect / as sysdba
    @$ORACLE_HOME/rdbms/admin/utlrp
    -- recompile all in PDB$SEED
    alter pluggable database PDB\$SEED close immediate instances=ALL;
    alter pluggable database PDB\$SEED open read write instances=ALL;
    alter session set container=PDB\$SEED;
    alter session set "_ORACLE_SCRIPT"=true;
    @?/rdbms/admin/utlrp
    alter session set "_ORACLE_SCRIPT"=false;
    alter session set container=CDB\$ROOT;
    alter pluggable database PDB\$SEED close immediate instances=ALL;
    alter pluggable database PDB\$SEED open read only instances=ALL;
EOF!
fi