//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// REQUIRES: locale.en_US.UTF-8
// REQUIRES: locale.fr_FR.UTF-8
// REQUIRES: locale.ru_RU.UTF-8
// REQUIRES: locale.zh_CN.UTF-8

// <locale>

// class time_get_byname<charT, InputIterator>

// iter_type
// get_weekday(iter_type s, iter_type end, ios_base& str,
//             ios_base::iostate& err, tm* t) const;

// TODO: investigation needed
// XFAIL: linux-gnu

#include <locale>
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"

#include "platform_support.h" // locale name macros

typedef input_iterator<const wchar_t*> I;

typedef std::time_get_byname<wchar_t, I> F;

class my_facet
    : public F
{
public:
    explicit my_facet(const std::string& nm, std::size_t refs = 0)
        : F(nm, refs) {}
};

int main(int, char**)
{
    std::ios ios(0);
    std::ios_base::iostate err;
    std::tm t;
    {
        const my_facet f(LOCALE_en_US_UTF_8, 1);
        const wchar_t in[] = L"Monday";
        err = std::ios_base::goodbit;
        t = std::tm();
        I i = f.get_weekday(I(in), I(in+sizeof(in)/sizeof(in[0])-1), ios, err, &t);
        assert(i.base() == in+sizeof(in)/sizeof(in[0])-1);
        assert(t.tm_wday == 1);
        assert(err == std::ios_base::eofbit);
    }
    {
        const my_facet f(LOCALE_fr_FR_UTF_8, 1);
        const wchar_t in[] = L"Lundi";
        err = std::ios_base::goodbit;
        t = std::tm();
        I i = f.get_weekday(I(in), I(in+sizeof(in)/sizeof(in[0])-1), ios, err, &t);
        assert(i.base() == in+sizeof(in)/sizeof(in[0])-1);
        assert(t.tm_wday == 1);
        assert(err == std::ios_base::eofbit);
    }
    {
        const my_facet f(LOCALE_ru_RU_UTF_8, 1);
        const wchar_t in[] = L"\x43F\x43E\x43D\x435\x434\x435\x43B\x44C\x43D\x438\x43A";
        err = std::ios_base::goodbit;
        t = std::tm();
        I i = f.get_weekday(I(in), I(in+sizeof(in)/sizeof(in[0])-1), ios, err, &t);
        assert(i.base() == in+sizeof(in)/sizeof(in[0])-1);
        assert(t.tm_wday == 1);
        assert(err == std::ios_base::eofbit);
    }
    {
        const my_facet f(LOCALE_zh_CN_UTF_8, 1);
        const wchar_t in[] = L"\x661F\x671F\x4E00";
        err = std::ios_base::goodbit;
        t = std::tm();
        I i = f.get_weekday(I(in), I(in+sizeof(in)/sizeof(in[0])-1), ios, err, &t);
        assert(i.base() == in+sizeof(in)/sizeof(in[0])-1);
        assert(t.tm_wday == 1);
        assert(err == std::ios_base::eofbit);
    }

  return 0;
}