// © 2023 and later: Unicode, Inc. and others.

// License & terms of use: http://www.unicode.org/copyright.html

// Fuzzer for ICU DateFormatSymbols.

#include <cstring>

#include "fuzzer_utils.h"

#include "unicode/dtfmtsym.h"

#include "unicode/locid.h"

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

    uint16_t rnd;

    icu::DateFormatSymbols::DtContextType context;

    icu::DateFormatSymbols::DtWidthType width;

    if (size < sizeof(rnd) + sizeof(context) + sizeof(width)) return 0;

    icu::StringPiece fuzzData(reinterpret_cast<const char *>(data), size);

    std::memcpy(&rnd, fuzzData.data(), sizeof(rnd));

    icu::Locale locale = GetRandomLocale(rnd);

    fuzzData.remove_prefix(sizeof(rnd));

    std::memcpy(&context, fuzzData.data(), sizeof(context));

    fuzzData.remove_prefix(sizeof(context));

    icu::DateFormatSymbols::DtContextType context_mod =

        static_cast<icu::DateFormatSymbols::DtContextType>(

            context % icu::DateFormatSymbols::DtContextType::DT_CONTEXT_COUNT);

;

    std::memcpy(&width, fuzzData.data(), sizeof(width));

    fuzzData.remove_prefix(sizeof(width));

    icu::DateFormatSymbols::DtWidthType width_mod =

        static_cast<icu::DateFormatSymbols::DtWidthType>(

            width % icu::DateFormatSymbols::DtWidthType::DT_WIDTH_COUNT);

    size_t len = fuzzData.size() / sizeof(char16_t);

    icu::UnicodeString text(false, reinterpret_cast<const char16_t*>(fuzzData.data()), len);

    const icu::UnicodeString items[] = { text, text, text, text };

    UErrorCode status = U_ZERO_ERROR;

    std::unique_ptr<icu::DateFormatSymbols> dfs(

        new icu::DateFormatSymbols(locale, status));

    if (U_FAILURE(status)) {

        return EXIT_SUCCESS;

    }

    int32_t count;

    dfs->getEras(count);

    dfs->getEraNames(count);

    dfs->getNarrowEras(count);

    dfs->getMonths(count);

    dfs->getShortMonths(count);

    dfs->getMonths(count, context, width);

    dfs->getMonths(count, context_mod, width_mod);

    dfs->getWeekdays(count);

    dfs->getShortWeekdays(count);

    dfs->getWeekdays(count, context, width);

    dfs->getWeekdays(count, context_mod, width_mod);

    dfs->getShortWeekdays(count);

    dfs->getQuarters(count, context_mod, width_mod);

    dfs->getAmPmStrings(count);

    icu::UnicodeString output;

    dfs->getTimeSeparatorString(output);

    dfs->getYearNames(count, context, width);

    dfs->getYearNames(count, context_mod, width_mod);

    dfs->getZodiacNames(count, context, width);

    dfs->getZodiacNames(count, context_mod, width_mod);

    dfs->getLeapMonthPatterns(count);

    int32_t count2;

    dfs->getZoneStrings(count, count2);

    dfs->getLocalPatternChars(output);

    return EXIT_SUCCESS;

}