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// -*- c++ -*-
// Distributed under the BSD 2-Clause License.
// See accompanying file LICENSE for details.
#pragma once

#include <vector>
#include <string>
#include <ostream>
#include <filesystem>

#include "ctor.h"


std::ostream& operator<<(std::ostream& stream, const ctor::c_opt& opt);
std::ostream& operator<<(std::ostream& stream, const ctor::cxx_opt& opt);
std::ostream& operator<<(std::ostream& stream, const ctor::ld_opt& opt);
std::ostream& operator<<(std::ostream& stream, const ctor::ar_opt& opt);
std::ostream& operator<<(std::ostream& stream, const ctor::asm_opt& opt);

std::string get_arch(ctor::output_system system);
ctor::arch get_arch(ctor::output_system system, const std::string& str);

//! Get tool-chain type from compiler path string
ctor::toolchain getToolChain(const std::string& compiler);

//! Get tool-chain type from output system (via configuration)
ctor::toolchain getToolChain(ctor::output_system system);



//! Get tool argument(s) for specific option type matching the supplied
//! tool-chain
std::vector<std::string> c_option(ctor::toolchain toolchain,
                                  ctor::c_opt option,
                                  const std::string& arg = {});

//! Get tool argument(s) for specific option type matching the supplied
//! tool-chain
std::vector<std::string> cxx_option(ctor::toolchain toolchain,
                                    ctor::cxx_opt option,
                                    const std::string& arg = {});

//! Get tool argument(s) for specific option type matching the supplied
//! tool-chain
std::vector<std::string> ld_option(ctor::toolchain toolchain,
                                   ctor::ld_opt option,
                                   const std::string& arg = {});

//! Get tool argument(s) for specific option type matching the supplied
//! tool-chain
std::vector<std::string> ar_option(ctor::toolchain toolchain,
                                   ctor::ar_opt option,
                                   const std::string& arg = {});

//! Get tool argument(s) for specific option type matching the supplied
//! tool-chain
std::vector<std::string> asm_option(ctor::toolchain toolchain,
                                    ctor::asm_opt option,
                                    const std::string& arg = {});



//! Get ctor::c_opt enum value and argument from string,
//! ie. { ctor::c_opt::inlude_path, "foo/bar" } from "-Ifoo/bar"
//! Returns { ctor::c_opt::custom, flag } if unknown.
ctor::c_flag c_option(const std::string& flag, ctor::toolchain toolchain);

//! Get ctor::cxx_opt enum value and argument from string,
//! ie. { ctor::cxx_opt::inlude_path, "foo/bar" } from "-Ifoo/bar"
//! Returns { ctor::cxx_opt::custom, flag } if unknown.
ctor::cxx_flag cxx_option(const std::string& flag, ctor::toolchain toolchain);

//! Get ctor::ld_opt enum value and argument from string,
//! ie. { ctor::ld_opt::inlude_path, "foo/bar" } from "-Ifoo/bar"
//! Returns { ctor::ld_opt::custom, flag } if unknown.
ctor::ld_flag ld_option(const std::string& flag, ctor::toolchain toolchain);

//! Get ctor::ar_opt enum value and argument from string,
//! ie. { ctor::ar_opt::inlude_path, "foo/bar" } from "-Ifoo/bar"
//! Returns { ctor::ar_opt::custom, flag } if unknown.
ctor::ar_flag ar_option(const std::string& flag, ctor::toolchain toolchain);

//! Get ctor::asm_opt enum value and argument from string,
//! ie. { ctor::asm_opt::inlude_path, "foo/bar" } from "-Ifoo/bar"
//! Returns { ctor::asm_opt::custom, flag } if unknown.
ctor::asm_flag asm_option(const std::string& flag, ctor::toolchain toolchain);



std::vector<std::string> to_strings(ctor::toolchain toolchain,
                                    const ctor::cxx_flag& flag);
std::vector<std::string> to_strings(ctor::toolchain toolchain,
                                    const ctor::c_flag& flag);
std::vector<std::string> to_strings(ctor::toolchain toolchain,
                                    const ctor::ld_flag& flag);
std::vector<std::string> to_strings(ctor::toolchain toolchain,
                                    const ctor::ar_flag& flag);
std::vector<std::string> to_strings(ctor::toolchain toolchain,
                                    const ctor::asm_flag& flag);


// Get target type from file extension
// If toolchain is not ::any only extensions for that toolchain will be accepted
// If no match is found ::unknown will be returned.
ctor::target_type target_type_from_extension(ctor::toolchain toolchain,
                                             const std::filesystem::path& file);


// Get appropriate extension from original extension and target type using
// the toolchain.
// ie. { gcc, static_lib, ".lib" } will return ".a"
//     { msvc, dynamic_lib, ".dylib" } will return ".dll"
//       ...
// If the supplied extension is normal for the supplied type and toolchain, then this is used, otherwise a conversion to the default extension to the given toolchain and type is given.
// The defaults for the toolchains are as follows:
// toolchain   executable static-lib dynamic-lib
//   gcc         (none)       .a        .so(.dylib on macos)
//   clang       (none)       .a        .so(.dylib on macos)
//   msvc        .exe         .lib      .dll
//   mingw       .exe         .lib      .dll
std::filesystem::path extension(ctor::toolchain toolchain,
                                ctor::target_type target_type,
                                ctor::output_system system,
                                const std::filesystem::path& file);