AMBuildScript

# vim: set ts=2 sw=2 tw=99 noet ft=python:
import os
from ambuild2 import util

class SDKConfig(object):
  def __init__(self):
    self.libs = []
    self.targets = []

    if builder.options.targets:
      target_archs = builder.options.targets.split(',')
    else:
      target_archs = ['x86_64']

    for arch in target_archs:
      cxx = builder.DetectCxx(target_arch = arch)
      self.targets.append(cxx)

  @property
  def tag(self):
    if builder.options.debug == '1':
      return 'Debug'
    return 'Release'

  def configure_cxx(self, cxx):
    if cxx.like('gcc'):
      self.configure_gcc(cxx)
    elif cxx.family == 'msvc':
      self.configure_msvc(cxx)

    # Optimization
    if builder.options.opt == '1':
      cxx.defines += ['NDEBUG']

    # Debugging
    if builder.options.debug == '1':
      cxx.defines += ['DEBUG', '_DEBUG']

    cxx.defines += ['X64BITS', 'PLATFORM_64BITS', '_LIB']

    # Platform-specifics
    if cxx.target.platform == 'linux':
      self.configure_linux(cxx)
    elif cxx.target.platform == 'windows':
      self.configure_windows(cxx)

  def configure_gcc(self, cxx):
    cxx.cflags += [
      '-Wall',
      '-Werror',
      '-Wno-overloaded-virtual',
      '-Wno-non-virtual-dtor',
      '-Wno-delete-non-virtual-dtor',
      '-Wno-invalid-offsetof',
      '-Wno-unknown-pragmas',
      '-Wno-unused',
      '-Wno-narrowing',
      '-Wno-register',
      '-fPIC'
    ]

    cxx.defines += [
      'COMPILER_GCC'
    ]

    cxx.cxxflags += [
      '-std=c++20'
    ]

    if builder.options.opt == '1':
      cxx.cflags += ['-O3']

    if builder.options.debug == '1':
      cxx.cflags += ['-g3']

  def configure_msvc(self, cxx):
    cxx.defines += ['COMPILER_MSVC', 'COMPILER_MSVC64']

    cxx.cxxflags += [
      '/std:c++20'
    ]

    if builder.options.opt == '1':
      cxx.cflags += ['/Ox', '/Zo']

    if builder.options.debug == '1':
      cxx.cflags += ['/MTd', '/Od', '/RTC1']
      cxx.linkflags += ['/NODEFAULTLIB:libcmt']
      # The game is built without iterator debugging, which changes the layout of STL types,
      # like the strings in protobuf messages that plugins share with the game
      cxx.defines += ['_ITERATOR_DEBUG_LEVEL=0']

  def configure_linux(self, cxx):
    cxx.defines += ['_LINUX', 'LINUX', 'POSIX', 'GNUC']
    cxx.cflags += ['-march=nocona', '-mmmx', '-msse', '-msse2']

    # Set of defines required by the HL2SDK
    cxx.defines += [
      '_finite=finite',
      'stricmp=strcasecmp', '_stricmp=strcasecmp',
      'strnicmp=strncasecmp', '_strnicmp=strncasecmp',
      'strcmpi=strcasecmp',
      '_vsnprintf=vsnprintf',
      '_alloca=alloca'
    ]

  def configure_windows(self, cxx):
    cxx.defines += ['_WINDOWS', 'WINDOWS', 'WIN32', 'WIN64', '_CRT_SECURE_NO_DEPRECATE', '_CRT_NONSTDC_NO_DEPRECATE']

  def configure(self):
    for cxx in self.targets:
      self.configure_cxx(cxx)

  def ConfigureLibrary(self, project, compiler, context):
    binary = project.Configure(compiler, project.name, '{0} - {1}'.format(self.tag, compiler.target.arch))
    binary.compiler.cxxincludes += [
      os.path.join(context.sourcePath, 'public'),
      os.path.join(context.sourcePath, 'public', 'tier0'),
      os.path.join(context.sourcePath, 'public', 'tier1')
    ]
    return binary

HL2SDK = SDKConfig()
HL2SDK.configure()

BuildScripts = ['interfaces/AMBuilder', 'mathlib/AMBuilder', 'thirdparty/protobuf-3.21.8/AMBuilder', 'PackageScript']
if builder.options.hl2sdk_manifests:
  BuildScripts += ['CheckScript']
# Turn off the 'lib' prefix for all platform, we will add it if we need to
util.StaticLibPrefix = ''
builder.Build(BuildScripts, { 'HL2SDK': HL2SDK })