#include "file.h"

#include <unordered_set>

namespace fs = std::filesystem;

const fs::path YMakefile{"YMakefile"};

// type of file can be built from dependencies
bool is_buildable_by_extension(const fs::path& p) {
 fs::path ext{p.extension()};
 return ext.empty() || ext == ".o";
}

namespace {
 std::unordered_set<fs::path> compile_unit_source_types{".cpp", ".c", ".cc", ".S", ".rs"};
}

// type of file is source of compile unit (no included types like headers)
bool is_compile_unit_source_by_extension(const fs::path& p) {
 fs::path ext{p.extension()};
 return compile_unit_source_types.find(ext) != compile_unit_source_types.end();
}

std::filesystem::path simplified_path(const std::filesystem::path& p)
{
 if (p.string().substr(0, 2) == "./") {
  return p.string().substr(2);
 }
 return p;
}