#!/usr/bin/env python

Import('env')

import methods

env.core_sources = []


# Generate global defaults
gd_call = ""
gd_inc = ""

for x in env.global_defaults:
    env.core_sources.append("#platform/" + x + "/globals/global_defaults.cpp")
    gd_inc += '#include "platform/' + x + '/globals/global_defaults.h"\n'
    gd_call += "\tregister_" + x + "_global_defaults();\n"

gd_cpp = '#include "project_settings.h"\n'
gd_cpp += gd_inc
gd_cpp += "void ProjectSettings::register_global_defaults() {\n" + gd_call + "\n}\n"

with open("global_defaults.gen.cpp", "w") as f:
	f.write(gd_cpp)


# Generate AES256 script encryption key
import os
txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0"
if ("SCRIPT_AES256_ENCRYPTION_KEY" in os.environ):
    e = os.environ["SCRIPT_AES256_ENCRYPTION_KEY"]
    txt = ""
    ec_valid = True
    if (len(e) != 64):
        ec_valid = False
    else:

        for i in range(len(e) >> 1):
            if (i > 0):
                txt += ","
            txts = "0x" + e[i * 2:i * 2 + 2]
            try:
                int(txts, 16)
            except:
                ec_valid = False
            txt += txts
    if (not ec_valid):
        txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0"
        print("Invalid AES256 encryption key, not 64 bits hex: " + e)

with open("script_encryption_key.gen.cpp", "w") as f:
	f.write("#include \"project_settings.h\"\nuint8_t script_encryption_key[32]={" + txt + "};\n")


# Add required thirdparty code. Header paths are hardcoded, we don't need to append
# to the include path (saves a few chars on the compiler invocation for touchy MSVC...)
thirdparty_dir = "#thirdparty/misc/"
thirdparty_sources = [
	# C sources
	"base64.c",
	"fastlz.c",
	"sha256.c",
	"smaz.c",

	# C++ sources
	"aes256.cpp",
	"hq2x.cpp",
	"md5.cpp",
	"pcg.cpp",
	"triangulator.cpp",
]
thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
env.add_source_files(env.core_sources, thirdparty_sources)

# Minizip library, can be unbundled in theory
# However, our version has some custom modifications, so it won't compile with the system one
thirdparty_minizip_dir = "#thirdparty/minizip/"
thirdparty_minizip_sources = [
	"ioapi.c",
	"unzip.c",
	"zip.c",
]
thirdparty_minizip_sources = [thirdparty_minizip_dir + file for file in thirdparty_minizip_sources]
env.add_source_files(env.core_sources, thirdparty_minizip_sources)

if 'builtin_zstd' in env and env['builtin_zstd']:
    SConscript("#thirdparty/zstd/SCsub")


# Godot's own sources
env.add_source_files(env.core_sources, "*.cpp")


# Make binders
import make_binders
env.Command(['method_bind.gen.inc', 'method_bind_ext.gen.inc'], 'make_binders.py', make_binders.run)

# Authors
env.Depends('#core/authors.gen.h', "../AUTHORS.md")
env.Command('#core/authors.gen.h', "../AUTHORS.md", methods.make_authors_header)

# Donors
env.Depends('#core/donors.gen.h', "../DONORS.md")
env.Command('#core/donors.gen.h', "../DONORS.md", methods.make_donors_header)

# License
env.Depends('#core/license.gen.h', ["../COPYRIGHT.txt", "../LICENSE.txt"])
env.Command('#core/license.gen.h', ["../COPYRIGHT.txt", "../LICENSE.txt"], methods.make_license_header)

# Chain load SCsubs
SConscript('os/SCsub')
SConscript('math/SCsub')
SConscript('io/SCsub')
SConscript('bind/SCsub')
SConscript('helper/SCsub')


# Build it all as a library
lib = env.add_library("core", env.core_sources)
env.Prepend(LIBS=[lib])
Export('env')