/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#if ENABLE(INPUT_TYPE_DATETIME_INCOMPLETE)
#include "DateTimeInputType.h"

#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "InputTypeNames.h"
#include <wtf/NeverDestroyed.h>

namespace WebCore {

using namespace HTMLNames;

static const int dateTimeDefaultStep = 60;
static const int dateTimeDefaultStepBase = 0;
static const int dateTimeStepScaleFactor = 1000;

const AtomicString& DateTimeInputType::formControlType() const
{
    return InputTypeNames::datetime();
}

DateComponents::Type DateTimeInputType::dateType() const
{
    return DateComponents::DateTime;
}

Decimal DateTimeInputType::defaultValueForStepUp() const
{
    return Decimal::fromDouble(WallTime::now().secondsSinceEpoch().milliseconds());
}

StepRange DateTimeInputType::createStepRange(AnyStepHandling anyStepHandling) const
{
    static NeverDestroyed<const StepRange::StepDescription> stepDescription(dateTimeDefaultStep, dateTimeDefaultStepBase, dateTimeStepScaleFactor, StepRange::ScaledStepValueShouldBeInteger);

    const Decimal stepBase = parseToNumber(element().attributeWithoutSynchronization(minAttr), 0);
    const Decimal minimum = parseToNumber(element().attributeWithoutSynchronization(minAttr), Decimal::fromDouble(DateComponents::minimumDateTime()));
    const Decimal maximum = parseToNumber(element().attributeWithoutSynchronization(maxAttr), Decimal::fromDouble(DateComponents::maximumDateTime()));
    const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element().attributeWithoutSynchronization(stepAttr));
    return StepRange(stepBase, RangeLimitations::Valid, minimum, maximum, step, stepDescription);
}

bool DateTimeInputType::parseToDateComponentsInternal(const UChar* characters, unsigned length, DateComponents* out) const
{
    ASSERT(out);
    unsigned end;
    return out->parseDateTime(characters, length, 0, end) && end == length;
}

bool DateTimeInputType::setMillisecondToDateComponents(double value, DateComponents* date) const
{
    ASSERT(date);
    return date->setMillisecondsSinceEpochForDateTime(value);
}

bool DateTimeInputType::isDateTimeField() const
{
    return true;
}

String DateTimeInputType::sanitizeValue(const String& proposedValue) const
{
    DateComponents date;
    if (!parseToDateComponents(proposedValue, &date))
        return String();
    return date.toString();
}

} // namespace WebCore

#endif