#!/usr/bin/env python

Import('env')

from compat import byte_to_str

def make_cs_files_header(src, dst):
    with open(dst, 'w') as header:
        header.write('/* This is an automatically generated file; DO NOT EDIT! OK THX */\n')
        header.write('#ifndef _CS_FILES_DATA_H\n')
        header.write('#define _CS_FILES_DATA_H\n\n')
        header.write('#include "map.h"\n')
        header.write('#include "ustring.h"\n')
        inserted_files = ''
        import os
        for file in os.listdir(src):
            if file.endswith('.cs'):
                with open(os.path.join(src, file), 'rb') as f:
                    buf = f.read()
                    decomp_size = len(buf)
                    import zlib
                    buf = zlib.compress(buf)
                    name = os.path.splitext(file)[0]
                    header.write('\nstatic const int _cs_' + name + '_compressed_size = ' + str(len(buf)) + ';\n')
                    header.write('static const int _cs_' + name + '_uncompressed_size = ' + str(decomp_size) + ';\n')
                    header.write('static const unsigned char _cs_' + name + '_compressed[] = { ')
                    for i, buf_idx in enumerate(range(len(buf))):
                        if i > 0:
                            header.write(', ')
                        header.write(byte_to_str(buf[buf_idx]))
                    inserted_files += '\tr_files.insert(\"' + file + '\", ' \
                                        'CompressedFile(_cs_' + name + '_compressed_size, ' \
                                        '_cs_' + name + '_uncompressed_size, ' \
                                        '_cs_' + name + '_compressed));\n'
                    header.write(' };\n')
        header.write('\nstruct CompressedFile\n' '{\n'
            '\tint compressed_size;\n' '\tint uncompressed_size;\n' '\tconst unsigned char* data;\n'
            '\n\tCompressedFile(int p_comp_size, int p_uncomp_size, const unsigned char* p_data)\n'
            '\t{\n' '\t\tcompressed_size = p_comp_size;\n' '\t\tuncompressed_size = p_uncomp_size;\n'
            '\t\tdata = p_data;\n' '\t}\n' '\n\tCompressedFile() {}\n' '};\n'
            '\nvoid get_compressed_files(Map<String, CompressedFile>& r_files)\n' '{\n' + inserted_files + '}\n'
            )
        header.write('#endif // _CS_FILES_DATA_H')


env.add_source_files(env.modules_sources, '*.cpp')
env.add_source_files(env.modules_sources, 'mono_gd/*.cpp')
env.add_source_files(env.modules_sources, 'utils/*.cpp')

if env['tools']:
    env.add_source_files(env.modules_sources, 'editor/*.cpp')
    make_cs_files_header('glue/cs_files', 'glue/cs_compressed.gen.h')

vars = Variables()
vars.Add(BoolVariable('mono_glue', 'Build with the mono glue sources', True))
vars.Update(env)

# Glue sources
if env['mono_glue']:
    env.add_source_files(env.modules_sources, 'glue/*.cpp')
else:
    env.Append(CPPDEFINES = [ 'MONO_GLUE_DISABLED' ])

if ARGUMENTS.get('yolo_copy', False):
    env.Append(CPPDEFINES = [ 'YOLO_COPY' ])

# Build GodotSharpTools solution

import os
import subprocess
import mono_reg_utils as monoreg


def mono_build_solution(source, target, env):
    if os.name == 'nt':
        msbuild_tools_path = monoreg.find_msbuild_tools_path_reg()
        if not msbuild_tools_path:
            raise RuntimeError('Cannot find MSBuild Tools Path in the registry')
        msbuild_path = os.path.join(msbuild_tools_path, 'MSBuild.exe')
    else:
        msbuild_path = 'msbuild'

    output_path = os.path.abspath(os.path.join(str(target[0]), os.pardir))

    msbuild_args = [
        msbuild_path,
        os.path.abspath(str(source[0])),
        '/p:Configuration=Release',
        '/p:OutputPath=' + output_path
    ]

    msbuild_env = os.environ.copy()

    # Needed when running from Developer Command Prompt for VS
    if 'PLATFORM' in msbuild_env:
        del msbuild_env['PLATFORM']

    msbuild_alt_paths = [ 'xbuild' ]

    while True:
        try:
            subprocess.check_call(msbuild_args, env = msbuild_env)
            break
        except subprocess.CalledProcessError:
            raise RuntimeError('GodotSharpTools build failed')
        except OSError:
            if os.name != 'nt':
                if not msbuild_alt_paths:
                    raise RuntimeError('Could not find commands msbuild or xbuild')
                # Try xbuild
                msbuild_args[0] = msbuild_alt_paths.pop(0)
            else:
                raise RuntimeError('Could not find command MSBuild.exe')


mono_sln_builder = Builder(action = mono_build_solution)
env.Append(BUILDERS = { 'MonoBuildSolution' : mono_sln_builder })
env.MonoBuildSolution(
    os.path.join(Dir('#bin').abspath, 'GodotSharpTools.dll'),
    'editor/GodotSharpTools/GodotSharpTools.sln'
)