###############################################################################
#
# CMake module to search for Oracle client library (OCI)
#
# On success, the macro sets the following variables:
# ORACLE_FOUND       = if the library found
# ORACLE_LIBRARY     = full path to the library
# ORACLE_LIBRARIES   = full path to the library
# ORACLE_INCLUDE_DIR = where to find the library headers also defined,
#                       but not for general use are
# ORACLE_VERSION     = version of library which was found, e.g. "1.2.5"
#
# Copyright (c) 2009-2013 Mateusz Loskot <mateusz@loskot.net>
#
# Developed with inspiration from Petr Vanek <petr@scribus.info>
# who wrote similar macro for TOra - http://torasql.com/
#
# Module source: http://github.com/mloskot/workshop/tree/master/cmake/
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#
###############################################################################

# First check for CMAKE  variable
if( NOT ORACLE_HOME )
  # If ORACLE_HOME is not defined check for env var and if exists set from env var
  if(EXISTS $ENV{ORACLE_HOME})
    set(ORACLE_HOME $ENV{ORACLE_HOME})
  endif(EXISTS $ENV{ORACLE_HOME})
endif(NOT ORACLE_HOME)

message(STATUS "ORACLE_HOME=${ORACLE_HOME}")
find_path(ORACLE_INCLUDE_DIR
NAMES oci.h
PATHS
${ORACLE_HOME}/rdbms/public
${ORACLE_HOME}/include
${ORACLE_HOME}/sdk/include  # Oracle SDK
${ORACLE_HOME}/OCI/include) # Oracle XE on Windows

set(ORACLE_OCI_NAMES clntsh libclntsh oci) # Dirty trick might help on OSX, see issues/89
set(ORACLE_OCCI_NAMES libocci occi oraocci10 oraocci11 oraocci12)
set(ORACLE_NNZ_NAMES nnz10 libnnz10 nnz11 libnnz11 nnz12 libnnz12 ociw32)

set(ORACLE_LIB_DIR
${ORACLE_HOME}
${ORACLE_HOME}/lib
${ORACLE_HOME}/sdk/lib       # Oracle SDK
${ORACLE_HOME}/sdk/lib/msvc
${ORACLE_HOME}/OCI/lib/msvc) # Oracle XE on Windows

find_library(ORACLE_OCI_LIBRARY
NAMES ${ORACLE_OCI_NAMES} PATHS ${ORACLE_LIB_DIR})
find_library(ORACLE_OCCI_LIBRARY
NAMES ${ORACLE_OCCI_NAMES} PATHS ${ORACLE_LIB_DIR})
find_library(ORACLE_NNZ_LIBRARY
NAMES ${ORACLE_NNZ_NAMES} PATHS ${ORACLE_LIB_DIR})

set(ORACLE_LIBRARY
${ORACLE_OCI_LIBRARY}
${ORACLE_OCCI_LIBRARY}
${ORACLE_NNZ_LIBRARY})

if(NOT WIN32)
set(ORACLE_LIBRARY ${ORACLE_LIBRARY} ${ORACLE_CLNTSH_LIBRARY})
endif(NOT WIN32)

set(ORACLE_LIBRARIES ${ORACLE_LIBRARY})

# Handle the QUIETLY and REQUIRED arguments and set ORACLE_FOUND to TRUE
# if all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(ORACLE DEFAULT_MSG ORACLE_LIBRARY ORACLE_INCLUDE_DIR)

mark_as_advanced(ORACLE_INCLUDE_DIR ORACLE_LIBRARY)