project('ca-tango-db-cache-mgr', 'cpp', version : '1.0.0',
    default_options : ['c_std=c17', 'cpp_std=c++17'])

project_description = 'Connect to tango attribute configuration change events to update the database cache'

srv_version = meson.project_version() # set in project()

# enable pinfo cuprintf
cpp_arguments = [ '-DCUMBIA_DEBUG_OUTPUT=1', '-DCATANGODBCACHEMGR_VERSION="' + srv_version + '"' ]

openssldep = dependency('openssl')
curldep = dependency('libcurl')
# for activities / threads
cumbiadep = dependency('cumbia', version: '>=1.4.0')
systemd_dep = dependency('systemd')
caserverlib_dep = dependency('caserver-lib')
redisdep = dependency('redis++')

nlohmann_json_dep = dependency('nlohmann_json', required : false)
if not nlohmann_json_dep.found()
    message('nlohmann_json installation not found: trying subproject method')
	message('refer to https://gitlab.com/PWMA/canone3/-/blob/master/nchan-setup/ubuntu-install.md')
	# nlohmann_json dependency is added as subdir 'nlohmann-json-include'
	nlohmann_json_proj = subproject('nlohmann-json-include')
	nlohmann_json_dep = nlohmann_json_proj.get_variable('nlohmann_json_dep')
endif

# tango library
tangodep = dependency('tango')

includedirs = include_directories('src')

deps = [ dependency('threads'),
    openssldep,
    tangodep,
	nlohmann_json_dep,
	curldep,
	cumbiadep,
	caserverlib_dep,
	systemd_dep,
	redisdep ]


##
### Systemd section
### please edit meson_options.txt in the root dir
##
if systemd_dep.found()
    deps += systemd_dep
	servicedir = get_option('systemd_service_dir')
	if servicedir == ''
	    servicedir = systemd_dep.get_pkgconfig_variable('systemdsystemunitdir')
	endif
	message('systemd dir: ' + servicedir)

    # ca-tango-db-cache-mgr.service.in

    sysd_conf = configuration_data()
	sysd_conf.set('prefix', get_option('prefix'))
	sysd_conf.set('user', get_option('user'))

    if(get_option('logfile') != '')
	    if (get_option('logfile') != 'console' and get_option('logfile') != 'syslog')
		    sysd_conf.set('logfile', join_paths(get_option('prefix'), get_option('logdir'), get_option('logfile')))
		else
		    sysd_conf.set('logfile', get_option('logfile'))
		endif
	endif

    if(get_option('loglev') != '')
	    sysd_conf.set('log_level', get_option('loglev'))
	endif
	if(get_option('port') != '')
	    sysd_conf.set('port', get_option('port'))
	endif
	if(get_option('address') != '')
	    sysd_conf.set('address', get_option('address'))
	endif

if get_option('conf_file')  != ''
        sysd_conf.set('conf_file', '-c ' + join_paths( get_option('prefix'),  get_option('conf_dir'), get_option('conf_file')))
	endif


    systemd_unit = configure_file(install_dir: servicedir,
	        configuration : sysd_conf,
			input : 'ca-tango-db-cache-mgr.service.in',
			output : 'ca-tango-db-cache-mgr.service')
endif

##
### end systemd section
##

if get_option('conf_file') != ''
    install_data(get_option('conf_file'), install_dir : join_paths( get_option('prefix'),  get_option('conf_dir')))
endif

headers = [
        'src/config.h',
        'src/ca-tango-db-cache-mgr.h',
		'src/casupjsoniz.h',
		'src/casupcurl.h',
		'src/catdbcacheu.h',
		'src/catdbcaredisu.h'
]

sources = [
        'src/ca-tango-db-cache-mgr.cpp',
		'src/main.cpp',
		'src/casupjsoniz.cpp',
		'src/casupcurl.cpp',
		'src/catdbcacheu.cpp',
		'src/catdbcaredisu.cpp'
		]

executable('ca-tango-db-cache-mgr',
    sources, dependencies : deps, cpp_args : cpp_arguments,
	include_directories : includedirs,
	install : true)



### ====================================== documentation ===========================
doxygen = find_program('doxygen', required : false)
if not doxygen.found()
  error('MESON_SKIP_TEST doxygen not found.')
endif
  doxydata = configuration_data()
  doxydata.set('VERSION', meson.project_version())


if find_program('dot', required : false).found()
  # In the real world this would set the variable
  # to YES. However we set it to NO so that the
  # list of generated files is always the same
  # so tests always pass.
  doxydata.set('HAVE_DOT', 'YES')
else
  doxydata.set('HAVE_DOT', 'NO')
endif

message('\n\033[1;32m*\n*\033[0m enable subdir(\'doc\') in meson.build to generate documentation\n\033[1;32m*\033[0m\n')
# subdir('doc')