//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#include <boost/locale/encoding.hpp>
#include <boost/locale/formatting.hpp>
#include <boost/locale/generator.hpp>
#include <boost/locale/info.hpp>
#include <boost/locale/localization_backend.hpp>
#include <boost/core/ignore_unused.hpp>
#include <ctime>
#include <iomanip>
#include <iostream>
#include <utility>
#ifndef BOOST_LOCALE_NO_WINAPI_BACKEND
#    ifndef NOMINMAX
#        define NOMINMAX
#    endif
#    include <windows.h>
#endif
#include "../src/win32/lcid.hpp"
#include "boostLocale/test/tools.hpp"
#include "boostLocale/test/unit_test.hpp"
#include "formatting_common.hpp"

template<typename CharType>
void test_by_char(const std::locale& l, std::string name, int lcid)
{
    typedef std::basic_stringstream<CharType> ss_type;

    using namespace boost::locale;

    {
        std::cout << "--- Testing as::posix" << std::endl;
        ss_type ss;
        ss.imbue(l);

        TEST(ss << 1045.45);
        double n;
        TEST(ss >> n);
        TEST_EQ(n, 1045.45);
        TEST_EQ(to_utf8(ss.str()), "1045.45");
    }

    {
        std::cout << "--- Testing as::number" << std::endl;
        ss_type ss;
        ss.imbue(l);

        ss << as::number;
        TEST(ss << 1045.45);
        double n;
        TEST(ss >> n);
        TEST_EQ(n, 1045.45);

        if(name == "ru_RU.UTF-8") {
            BOOST_LOCALE_START_CONST_CONDITION
            if(sizeof(CharType) == 1) // Space
                TEST_EQ(to_utf8(ss.str()), "1 045,45");
            else // Non-breaking space
                TEST_EQ(to_utf8(ss.str()),
                        "1\xC2\xA0"
                        "045,45");
            BOOST_LOCALE_END_CONST_CONDITION
        } else
            TEST_EQ(to_utf8(ss.str()), "1,045.45");
    }

    {
        std::cout << "--- Testing as::currency " << std::endl;

        ss_type ss;
        ss.imbue(l);

        ss << as::currency;
        TEST(ss << 1043.34);

#ifndef BOOST_LOCALE_NO_WINAPI_BACKEND
        wchar_t buf[256];
        GetCurrencyFormatW(lcid, 0, L"1043.34", nullptr, buf, 256);
        TEST_EQ(to_utf8(ss.str()), to_utf8<wchar_t>(buf));
#else
        boost::ignore_unused(lcid);
#endif
    }

    {
        std::cout << "--- Testing as::date/time" << std::endl;

        const time_t a_date = 3600 * 24 * (31 + 4);     // Feb 5th
        const time_t a_time = 3600 * 15 + 60 * 33 + 13; // 15:33:13
        const time_t a_datetime = a_date + a_time;

        wchar_t time_buf[256]{};
        wchar_t date_buf[256]{};
#ifndef BOOST_LOCALE_NO_WINAPI_BACKEND
        SYSTEMTIME st = {1970, 2, 5, 5, 15, 33, 13, 0};
        GetTimeFormatW(lcid, 0, &st, nullptr, time_buf, 256);
        GetDateFormatW(lcid, 0, &st, nullptr, date_buf, 256);
#else
        if(!time_buf[0])
            return;
#endif
        const std::string expDate = to_utf8(std::wstring(date_buf));
        const std::string expTime = to_utf8(std::wstring(time_buf));

        ss_type ss;
        ss.imbue(l);

        ss << as::time_zone("GMT");

        empty_stream(ss) << as::date << a_datetime;
        TEST_EQ(to_utf8(ss.str()), expDate);
        empty_stream(ss) << as::time << a_datetime;
        TEST_EQ(to_utf8(ss.str()), expTime);
        empty_stream(ss) << as::datetime << a_datetime;
        TEST_EQ(to_utf8(ss.str()), expDate + " " + expTime);
        empty_stream(ss) << as::time_zone("GMT+01:00") << as::ftime(ascii_to<CharType>("%H")) << a_datetime;
        TEST_EQ(to_utf8(ss.str()), "16");
        empty_stream(ss) << as::time_zone("GMT+00:15") << as::ftime(ascii_to<CharType>("%M")) << a_datetime;
        TEST_EQ(to_utf8(ss.str()), "48");
    }
}

void test_date_time(const std::locale& l) // LCOV_EXCL_LINE
{
    std::ostringstream ss;
    ss.imbue(l);

    ss << boost::locale::as::time_zone("GMT");

    time_t a_date = 3600 * 24 * (31 + 4); // Feb 5th
    time_t a_time = 3600 * 15 + 60 * 33;  // 15:33:13
    time_t a_timesec = 13;
    time_t a_datetime = a_date + a_time + a_timesec;

    const std::pair<std::string, std::string> testCases[] = {
      {"a", "Thu"},      {"A", "Thursday"}, {"b", "Feb"}, {"B", "February"}, {"d", "05"},
      {"D", "02/05/70"}, {"e", "5"},        {"h", "Feb"}, {"H", "15"},       {"I", "03"},
      {"m", "02"},       {"M", "33"},       {"n", "\n"},  {"p", "PM"},       {"r", "03:33:13 PM"},
      {"R", "15:33"},    {"S", "13"},       {"t", "\t"},  {"y", "70"},       {"Y", "1970"},
      {"%", "%"}};

    for(const auto& patternAndResult : testCases) {
        empty_stream(ss) << boost::locale::as::ftime("%" + patternAndResult.first) << a_datetime;
        TEST_EQ(ss.str(), patternAndResult.second);
    }
} // LCOV_EXCL_LINE

BOOST_LOCALE_DISABLE_UNREACHABLE_CODE_WARNING
void test_main(int /*argc*/, char** /*argv*/)
{
#ifdef BOOST_LOCALE_NO_WINAPI_BACKEND
    std::cout << "WinAPI Backend is not build... Skipping\n";
    return;
#endif
    boost::locale::localization_backend_manager mgr = boost::locale::localization_backend_manager::global();
    mgr.select("winapi");
    boost::locale::localization_backend_manager::global(mgr);
    boost::locale::generator gen;

    for(const auto& name_lcid : {std::make_pair("en_US.UTF-8", 0x0409),
                                 std::make_pair("he_IL.UTF-8", 0x040D),
                                 std::make_pair("ru_RU.UTF-8", 0x0419)})
    {
        const std::string name = name_lcid.first;
        std::cout << "- " << name << " locale" << std::endl;
        if(!has_win_locale(name))
            std::cout << "-- not supported, skipping" << std::endl; // LCOV_EXCL_LINE
        else {
            const std::locale l = gen(name);
            std::cout << "-- UTF-8" << std::endl;
            test_by_char<char>(l, name, name_lcid.second);
            std::cout << "-- UTF-16" << std::endl;
            test_by_char<wchar_t>(l, name, name_lcid.second);
        }
    }
    test_format_large_number();
    test_parse_multi_number();
    std::cout << "- Testing strftime" << std::endl;
    test_date_time(gen("en_US.UTF-8"));
}

// boostinspect:noascii