cpp_compiler = meson.get_compiler('cpp')

protobuf_deps = dependency('protobuf', required : false)
if not protobuf_deps.found()
  protobuf_proj = subproject('protobuf')
  protobuf_deps = declare_dependency(
    dependencies : [
      abseil_proj.get_variable('protobuf_dep'),
    ],
  )
endif

gpr_deps = dependency('gpr', required: false)
if not gpr_deps.found()
  gpr_deps = cpp_compiler.find_library('gpr')
endif

grpc_deps = dependency('grpc', required: false)
if not grpc_deps.found()
  grpc_deps = cpp_compiler.find_library('grpc')
endif

grpcpp_deps = dependency('grpc++', required: false)
if not grpcpp_deps.found()
  grpcpp_deps = cpp_compiler.find_library('grpc++')
endif

grpcpp_reflection = dependency('grpc++_reflection', required: false)
if not grpcpp_reflection.found()
  grpcpp_reflection = cpp_compiler.find_library('grpc++_reflection', required: false)
  if not grpcpp_reflection.found()
    grpcpp_reflection = cpp_compiler.find_library('grpc++_reflection', dirs: '/usr/local/lib')
  endif
endif

protoc = find_program('protoc')
grpc_cpp_plugin = find_program('grpc_cpp_plugin')

redfish_v1_protos = ['redfish_v1.proto']
authz_protos = ['oauth.proto', 'authorized_entity.proto']

all_protos = redfish_v1_protos + authz_protos

proto_gen = {}
proto_headers = {}
foreach proto : all_protos
  tmp_target = custom_target(
    proto,
    output: ['@BASENAME@.pb.cc', '@BASENAME@.pb.h'],
    input: [proto],
    command : [
      protoc,
      '@INPUT@',
      '--proto_path=@CURRENT_SOURCE_DIR@',
      '--cpp_out=@OUTDIR@',
    ],
    install : true,
    install_dir : [false, get_option('includedir')],
  )
  proto_gen += {proto: tmp_target}
  proto_headers += {proto: tmp_target[1]}
endforeach

redfish_v1_proto_gen = []
foreach proto : redfish_v1_protos
  redfish_v1_proto_gen += proto_gen[proto]
endforeach

authz_proto_gen = []
foreach proto : authz_protos
  authz_proto_gen += proto_gen[proto]
endforeach

grpc_redfish_gen = custom_target(
  'grpc_redfish_grpc_pb_[ch]',
  output: ['@BASENAME@.grpc.pb.cc', '@BASENAME@.grpc.pb.h'],
  input: ['redfish_v1.proto'],
  command : [
    protoc,
    '@INPUT@',
    '--proto_path=@CURRENT_SOURCE_DIR@',
    '--grpc_out=@OUTDIR@',
    '--plugin=protoc-gen-grpc=' + grpc_cpp_plugin.full_path(),
  ],
  install : true,
  install_dir : [false, get_option('includedir')],
)

oauth_gen = custom_target(
  'oauth_grpc_pb_[ch]',
  output: ['@BASENAME@.grpc.pb.cc', '@BASENAME@.grpc.pb.h'],
  input: ['oauth.proto'],
  command : [
    protoc,
    '@INPUT@',
    '--proto_path=@CURRENT_SOURCE_DIR@',
    '--grpc_out=@OUTDIR@',
    '--plugin=protoc-gen-grpc=' + grpc_cpp_plugin.full_path(),
  ],
  install : true,
  install_dir : [false, get_option('includedir')],
)

gmi_protos_dep = dependency('gmi_protos')
one_dep = dependency('one')

if cpp_compiler.has_header('nlohmann/json.hpp')
    nlohmann_json = declare_dependency()
else
    nlohmann_json_proj = subproject('nlohmann', required: true)
    nlohmann_json = nlohmann_json_proj.get_variable('nlohmann_json_dep')
endif

libsystemd_pkg = dependency('libsystemd')
zatar_dep = dependency('zatar')

grpc_redfish_deps = [
  abseil_deps,
  gpr_deps,
  grpc_deps,
  grpcpp_deps,
  protobuf_deps,
  grpcpp_reflection,
  gmi_protos_dep,
  libsystemd_pkg,
  nlohmann_json,
  one_dep,
  openssl,
  zatar_dep,
]

grpc_redfish_include = include_directories('.')

grpc_redfish_lib = static_library(
  'grpc_redfish',
  'bmcweb_authorizer_singleton.cc',
  'subscription_tracker.cc',
  'config_generator.cc',
  'config_parser.cc',
  'json_utils.cc',
  'oauth_utils.cc',
  'redfish_authorizer.cc',
  'redfish_privileges.cc',
  'redfish_entity_trie.cc',
  'redfish_entity_trie_node.cc',
  'redfish_subtree_privileges_trie_node.cc',
  'override.cc',
  'subordinate_override.cc',
  'resource_uri_override.cc',
  'authorizer_enums.cc',
  authz_proto_gen,
  redfish_v1_proto_gen,
  grpc_redfish_gen,
  dependencies: grpc_redfish_deps,
  include_directories: [grpc_redfish_include],
  cpp_args: ['-Wno-error'],
)

grpc_redfish_dep = declare_dependency(
  link_with: [grpc_redfish_lib],
  include_directories: [grpc_redfish_include],
  dependencies: grpc_redfish_deps,
)

bmcweb_dependencies += grpc_redfish_dep

executable(
  'config_generator',
  'config_generator_main.cc',
  dependencies: [grpc_redfish_dep],
  install: true,
)

executable(
  'authz_server',
  'authz_server_main.cc',
  'authz_server.cc',
  authz_proto_gen,
  oauth_gen,
  dependencies: [grpc_redfish_dep],
  install: true,
)

systemd_dep = dependency('systemd')
systemd_system_unitdir = systemd_dep.get_variable(
  pkgconfig: 'systemdsystemunitdir')
conf_data = configuration_data()
conf_data.set('extra_service_flags', get_option('extra-service-flags'))
configure_file(
  input: 'authz_server.service.in',
  output: 'authz_server.service',
  configuration: conf_data,
  install: true,
  install_dir: systemd_system_unitdir,
)