// © 2017 and later: Unicode, Inc. and others.

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

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "number_decimfmtprops.h"

#include "umutex.h"

using namespace icu;

using namespace icu::number;

using namespace icu::number::impl;

namespace {

alignas(DecimalFormatProperties)

char kRawDefaultProperties[sizeof(DecimalFormatProperties)];

icu::UInitOnce gDefaultPropertiesInitOnce = U_INITONCE_INITIALIZER;

void U_CALLCONV initDefaultProperties(UErrorCode&) {

    // can't fail, uses placement new into statically allocated space.

    new(kRawDefaultProperties) DecimalFormatProperties(); // set to the default instance

}

}

DecimalFormatProperties::DecimalFormatProperties() {

    clear();

}

void DecimalFormatProperties::clear() {

    compactStyle.nullify();

    currency.nullify();

    currencyPluralInfo.fPtr.adoptInstead(nullptr);

    currencyUsage.nullify();

    decimalPatternMatchRequired = false;

    decimalSeparatorAlwaysShown = false;

    exponentSignAlwaysShown = false;

    formatFailIfMoreThanMaxDigits = false;

    formatWidth = -1;

    groupingSize = -1;

    groupingUsed = true;

    magnitudeMultiplier = 0;

    maximumFractionDigits = -1;

    maximumIntegerDigits = -1;

    maximumSignificantDigits = -1;

    minimumExponentDigits = -1;

    minimumFractionDigits = -1;

    minimumGroupingDigits = -1;

    minimumIntegerDigits = -1;

    minimumSignificantDigits = -1;

    multiplier = 1;

    multiplierScale = 0;

    negativePrefix.setToBogus();

    negativePrefixPattern.setToBogus();

    negativeSuffix.setToBogus();

    negativeSuffixPattern.setToBogus();

    padPosition.nullify();

    padString.setToBogus();

    parseCaseSensitive = false;

    parseIntegerOnly = false;

    parseMode.nullify();

    parseNoExponent = false;

    parseToBigDecimal = false;

    parseAllInput = UNUM_MAYBE;

    positivePrefix.setToBogus();

    positivePrefixPattern.setToBogus();

    positiveSuffix.setToBogus();

    positiveSuffixPattern.setToBogus();

    roundingIncrement = 0.0;

    roundingMode.nullify();

    secondaryGroupingSize = -1;

    signAlwaysShown = false;

}

bool

DecimalFormatProperties::_equals(const DecimalFormatProperties& other, bool ignoreForFastFormat) const {

    bool eq = true;

    // Properties that must be equal both normally and for fast-path formatting

    eq = eq && compactStyle == other.compactStyle;

    eq = eq && currency == other.currency;

    eq = eq && currencyPluralInfo.fPtr.getAlias() == other.currencyPluralInfo.fPtr.getAlias();

    eq = eq && currencyUsage == other.currencyUsage;

    eq = eq && decimalSeparatorAlwaysShown == other.decimalSeparatorAlwaysShown;

    eq = eq && exponentSignAlwaysShown == other.exponentSignAlwaysShown;

    eq = eq && formatFailIfMoreThanMaxDigits == other.formatFailIfMoreThanMaxDigits;

    eq = eq && formatWidth == other.formatWidth;

    eq = eq && magnitudeMultiplier == other.magnitudeMultiplier;

    eq = eq && maximumSignificantDigits == other.maximumSignificantDigits;

    eq = eq && minimumExponentDigits == other.minimumExponentDigits;

    eq = eq && minimumGroupingDigits == other.minimumGroupingDigits;

    eq = eq && minimumSignificantDigits == other.minimumSignificantDigits;

    eq = eq && multiplier == other.multiplier;

    eq = eq && multiplierScale == other.multiplierScale;

    eq = eq && negativePrefix == other.negativePrefix;

    eq = eq && negativeSuffix == other.negativeSuffix;

    eq = eq && padPosition == other.padPosition;

    eq = eq && padString == other.padString;

    eq = eq && positivePrefix == other.positivePrefix;

    eq = eq && positiveSuffix == other.positiveSuffix;

    eq = eq && roundingIncrement == other.roundingIncrement;

    eq = eq && roundingMode == other.roundingMode;

    eq = eq && secondaryGroupingSize == other.secondaryGroupingSize;

    eq = eq && signAlwaysShown == other.signAlwaysShown;

    if (ignoreForFastFormat) {

        return eq;

    }

    // Properties ignored by fast-path formatting

    // Formatting (special handling required):

    eq = eq && groupingSize == other.groupingSize;

    eq = eq && groupingUsed == other.groupingUsed;

    eq = eq && minimumFractionDigits == other.minimumFractionDigits;

    eq = eq && maximumFractionDigits == other.maximumFractionDigits;

    eq = eq && maximumIntegerDigits == other.maximumIntegerDigits;

    eq = eq && minimumIntegerDigits == other.minimumIntegerDigits;

    eq = eq && negativePrefixPattern == other.negativePrefixPattern;

    eq = eq && negativeSuffixPattern == other.negativeSuffixPattern;

    eq = eq && positivePrefixPattern == other.positivePrefixPattern;

    eq = eq && positiveSuffixPattern == other.positiveSuffixPattern;

    // Parsing (always safe to ignore):

    eq = eq && decimalPatternMatchRequired == other.decimalPatternMatchRequired;

    eq = eq && parseCaseSensitive == other.parseCaseSensitive;

    eq = eq && parseIntegerOnly == other.parseIntegerOnly;

    eq = eq && parseMode == other.parseMode;

    eq = eq && parseNoExponent == other.parseNoExponent;

    eq = eq && parseToBigDecimal == other.parseToBigDecimal;

    eq = eq && parseAllInput == other.parseAllInput;

    return eq;

}

bool DecimalFormatProperties::equalsDefaultExceptFastFormat() const {

    UErrorCode localStatus = U_ZERO_ERROR;

    umtx_initOnce(gDefaultPropertiesInitOnce, &initDefaultProperties, localStatus);

    return _equals(*reinterpret_cast<DecimalFormatProperties*>(kRawDefaultProperties), true);

}

const DecimalFormatProperties& DecimalFormatProperties::getDefault() {

    UErrorCode localStatus = U_ZERO_ERROR;

    umtx_initOnce(gDefaultPropertiesInitOnce, &initDefaultProperties, localStatus);

    return *reinterpret_cast<const DecimalFormatProperties*>(kRawDefaultProperties);

}

#endif /* #if !UCONFIG_NO_FORMATTING */