// © 2018 and later: Unicode, Inc. and others.

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

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#ifndef __NUMPARSE_CURRENCY_H__

#define __NUMPARSE_CURRENCY_H__

#include "numparse_types.h"

#include "numparse_compositions.h"

#include "charstr.h"

#include "number_currencysymbols.h"

#include "unicode/uniset.h"

U_NAMESPACE_BEGIN namespace numparse {

namespace impl {

using ::icu::number::impl::CurrencySymbols;

/**

 * Matches a currency, either a custom currency or one from the data bundle. The class is called

 * "combined" to emphasize that the currency string may come from one of multiple sources.

 *

 * Will match currency spacing either before or after the number depending on whether we are currently in

 * the prefix or suffix.

 *

 * The implementation of this class is slightly different between J and C. See #13584 for a follow-up.

 *

 * @author sffc

 */

// Exported as U_I18N_API for tests

class U_I18N_API CombinedCurrencyMatcher : public NumberParseMatcher, public UMemory {

  public:

    CombinedCurrencyMatcher() = default;  // WARNING: Leaves the object in an unusable state

    CombinedCurrencyMatcher(const CurrencySymbols& currencySymbols, const DecimalFormatSymbols& dfs,

                            parse_flags_t parseFlags, UErrorCode& status);

    bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override;

    bool smokeTest(const StringSegment& segment) const override;

    UnicodeString toString() const override;

  private:

    UChar fCurrencyCode[4];

    UnicodeString fCurrency1;

    UnicodeString fCurrency2;

    bool fUseFullCurrencyData;

    UnicodeString fLocalLongNames[StandardPlural::COUNT];

    UnicodeString afterPrefixInsert;

    UnicodeString beforeSuffixInsert;

    // We could use Locale instead of CharString here, but

    // Locale has a non-trivial default constructor.

    CharString fLocaleName;

    // TODO: See comments in constructor in numparse_currency.cpp

    // UnicodeSet fLeadCodePoints;

    /** Matches the currency string without concern for currency spacing. */

    bool matchCurrency(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const;

};

} // namespace impl

} // namespace numparse

U_NAMESPACE_END

#endif //__NUMPARSE_CURRENCY_H__

#endif /* #if !UCONFIG_NO_FORMATTING */