/**

Copyright (c) 2024, Philip Deegan.

All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are

met:

* Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above

copyright notice, this list of conditions and the following disclaimer

in the documentation and/or other materials provided with the

distribution.

* Neither the name of Philip Deegan nor the names of its

contributors may be used to endorse or promote products derived from

this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#include "maiken/module/init.hpp" // IWYU pragma: keep

#include "maiken/app.hpp" // for Application

#include "maiken/compiler.hpp" // for CompilationInfo, Mode

#include "mkn/kul/os.hpp" // for Dir, WHICH, PushDir

#include "mkn/kul/cli.hpp" // for EnvVar, EnvVarMode

#include "mkn/kul/env.hpp" // for GET, SET

#include "mkn/kul/defs.hpp" // for MKN_KUL_PUBLISH

#include "mkn/kul/proc.hpp" // for Process, ProcessCapture, AProcess

#include "maiken/project.hpp" // for Project

#include "mkn/kul/except.hpp" // for Exception, KEXCEPT, KTHROW

#include "mkn/kul/string.hpp" // for String

#include <memory> // for shared_ptr, make_shared

#include <string> // for basic_string, string

#include <vector> // for vector

#include <stdlib.h> // for exit

namespace YAML {

class Node;

}

namespace mkn {

namespace python3 {

class ModuleMaker : public maiken::Module {

public:

void init(maiken::Application& a, YAML::Node const& /*node*/) KTHROW(std::exception) override {

if (!kul::env::WHICH(PY.c_str())) PY = "python";

PYTHON = mkn::kul::env::GET("PYTHON");

if (!PYTHON.empty()) PY = PYTHON;

#if defined(_WIN32)

if (PY.rfind(".exe") == std::string::npos) PY += ".exe";

#endif

mkn::kul::Process p(PY);

mkn::kul::ProcessCapture pc(p);

HOME = mkn::kul::env::GET("PYTHON3_HOME");

if (!HOME.empty()) {

#if defined(_WIN32)

bin = mkn::kul::Dir(HOME);

if (!bin) KEXCEPT(kul::Exception, "$PYTHON3_HOME does not exist");

#else

bin = mkn::kul::Dir("bin", HOME);

if (!bin) KEXCEPT(kul::Exception, "$PYTHON3_HOME/bin does not exist");

#endif

path_var =

std::make_shared<kul::cli::EnvVar>("PATH", bin.real(), mkn::kul::cli::EnvVarMode::PREP);

mkn::kul::env::SET(path_var->name(), path_var->toString().c_str());

p.var(path_var->name(), path_var->toString());

};

auto const extension =

pyexec_for_string("\"import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))\"");

a.m_cInfo.lib_ext = mkn::kul::String::LINES(extension)[0]; // drop EOL

a.m_cInfo.lib_prefix = "";

a.mode(maiken::compiler::Mode::SHAR);

}

private:

std::string pyexec_for_string(std::string const& cmd) {

mkn::kul::Process p(PY);

mkn::kul::ProcessCapture pc(p);

p << "-c" << cmd;

p.start();

return pc.outs();

}

std::string HOME, PY = "python3", PYTHON, PY_CONFIG = "python-config",

PY3_CONFIG = "python3-config", PATH = mkn::kul::env::GET("PATH");

mkn::kul::Dir bin;

std::shared_ptr<kul::cli::EnvVar> path_var;

};

} // namespace python3

} // namespace mkn

extern "C" MKN_KUL_PUBLISH maiken::Module* maiken_module_construct() {

return new mkn::python3::ModuleMaker;

}

extern "C" MKN_KUL_PUBLISH void maiken_module_destruct(maiken::Module* p) { delete p; }