#include "HECL/HECL.hpp"

namespace HECL
{
unsigned VerbosityLevel = 0;
LogVisor::LogModule LogModule("HECL");

void SanitizePath(std::string& path)
{
    if (path.empty())
        return;
    path.erase(std::remove(path.begin(), path.end(), '\n'), path.end());
    path.erase(std::remove(path.begin(), path.end(), '\r'), path.end());
    std::string::iterator p1 = path.begin();
    bool ic = false;
    std::transform(path.begin(), path.end(), path.begin(), [&](const char a) -> char {
        ++p1;
        static const std::string illegals {"<>?*\"|"};
        if (illegals.find_first_of(a) != std::string::npos)
        {
            ic = false;
            return '_';
        }

        if (ic)
        {
            ic = false;
            return a;
        }
        if (a == '\\' && (p1 == path.end() || *p1 != '\\'))
        {
            ic = true;
            return '/';
        }
        return a;
    });
}

void SanitizePath(std::wstring& path)
{
    if (path.empty())
        return;
    path.erase(std::remove(path.begin(), path.end(), L'\n'), path.end());
    path.erase(std::remove(path.begin(), path.end(), L'\r'), path.end());
    std::wstring::iterator p1 = path.begin();
    bool ic = false;
    std::transform(path.begin(), path.end(), path.begin(), [&](const wchar_t a) -> wchar_t {
        ++p1;
        static const std::wstring illegals {L"<>?*\"|"};
        if (illegals.find_first_of(a) != std::wstring::npos)
        {
            ic = false;
            return L'_';
        }

        if (ic)
        {
            ic = false;
            return a;
        }
        if (a == L'\\' && (p1 == path.end() || *p1 != L'\\'))
        {
            ic = true;
            return L'/';
        }
        return a;
    });
}

bool IsPathPNG(const HECL::ProjectPath& path)
{
    FILE* fp = HECL::Fopen(path.getAbsolutePath().c_str(), _S("rb"));
    if (!fp)
        return false;
    uint32_t buf;
    if (fread(&buf, 1, 4, fp) != 4)
    {
        fclose(fp);
        return false;
    }
    fclose(fp);
    buf = HECL::SBig(buf);
    if (buf == 0x89504e47)
        return true;
    return false;
}

bool IsPathBlend(const HECL::ProjectPath& path)
{
    const SystemChar* lastCompExt = path.getLastComponentExt();
    if (!lastCompExt || HECL::StrCmp(lastCompExt, _S("blend")))
        return false;
    FILE* fp = HECL::Fopen(path.getAbsolutePath().c_str(), _S("rb"));
    if (!fp)
        return false;
    uint32_t buf;
    if (fread(&buf, 1, 4, fp) != 4)
    {
        fclose(fp);
        return false;
    }
    fclose(fp);
    buf = HECL::SLittle(buf);
    if (buf == 0x4e454c42 || buf == 0x88b1f)
        return true;
    return false;
}

bool IsPathYAML(const HECL::ProjectPath& path)
{
    const SystemChar* lastCompExt = path.getLastComponentExt();
    if (!lastCompExt)
        return false;
    if (!HECL::StrCmp(lastCompExt, _S("yaml")) ||
        !HECL::StrCmp(lastCompExt, _S("yml")))
        return true;
    return false;
}

}