/*
    * Copyright (c) 2002-2025 Gargoyle Software Inc.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    * https://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.htmlunit.html;
  
  import java.time.LocalTime;
  import java.time.format.DateTimeFormatter;
  import java.time.format.DateTimeFormatterBuilder;
  import java.time.format.DateTimeParseException;
  import java.time.temporal.ChronoField;
  import java.time.temporal.TemporalAccessor;
  import java.util.Locale;
  import java.util.Map;
  
  import org.apache.commons.lang3.StringUtils;
  import org.htmlunit.BrowserVersion;
  import org.htmlunit.SgmlPage;
  
  /**
   * Wrapper for the HTML element "input" where type is "time".
   *
   * @author Ahmed Ashour
   * @author Frank Danek
   * @author Anton Demydenko
   * @author Ronald Brill
   */
  public class HtmlTimeInput extends HtmlSelectableTextInput implements LabelableElement {
  
      private static final DateTimeFormatter INPUT_FORMATTER_ =
              new DateTimeFormatterBuilder()
                      .parseCaseInsensitive()
                      .appendPattern("hh[:]mm[a]")
                      .parseDefaulting(ChronoField.SECOND_OF_MINUTE, 0)
                      .parseDefaulting(ChronoField.AMPM_OF_DAY, 0)
                      .toFormatter(Locale.US);
      private static final DateTimeFormatter OUTPUT_FORMATTER_ = DateTimeFormatter.ofPattern("HH:mm");
  
      /**
       * Creates an instance.
       *
       * @param qualifiedName the qualified name of the element type to instantiate
       * @param page the page that contains this element
       * @param attributes the initial attributes
       */
      HtmlTimeInput(final String qualifiedName, final SgmlPage page,
              final Map<String, DomAttr> attributes) {
          super(qualifiedName, page, attributes);
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void setDefaultChecked(final boolean defaultChecked) {
          // Empty.
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public String getValue() {
          String raw = getRawValue();
          if (StringUtils.isBlank(raw)) {
              return "";
          }
  
          raw = raw.trim();
          try {
              final TemporalAccessor time = INPUT_FORMATTER_.parse(raw);
              return OUTPUT_FORMATTER_.format(time);
          }
          catch (final DateTimeParseException ignored) {
              // ignore
          }
          return "";
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public boolean isValid() {
          return super.isValid() && isMaxValid() && isMinValid();
      }
  
      /**
       * Returns if the input element has a valid min value. Refer to the
      * <a href="https://www.w3.org/TR/html5/sec-forms.html">HTML 5</a>
      * documentation for details.
      *
      * @return if the input element has a valid min value
      */
     private boolean isMinValid() {
         if (!getMin().isEmpty()) {
             try {
                 final LocalTime timeValue = LocalTime.parse(getRawValue(), INPUT_FORMATTER_);
                 final LocalTime minTime = LocalTime.parse(getMin(), INPUT_FORMATTER_);
                 return minTime.equals(timeValue) || minTime.isBefore(timeValue);
             }
             catch (final DateTimeParseException ignored) {
                 // ignore
             }
         }
         return true;
     }
 
     /**
      * Returns if the input element has a valid max value. Refer to the
      * <a href="https://www.w3.org/TR/html5/sec-forms.html">HTML 5</a>
      * documentation for details.
      *
      * @return if the input element has a valid max value
      */
     private boolean isMaxValid() {
         if (!getMax().isEmpty()) {
             try {
                 final LocalTime timeValue = LocalTime.parse(getRawValue(), INPUT_FORMATTER_);
                 final LocalTime maxTime = LocalTime.parse(getMax(), INPUT_FORMATTER_);
                 return maxTime.equals(timeValue) || maxTime.isAfter(timeValue);
             }
             catch (final DateTimeParseException ignored) {
                 // ignore
             }
         }
         return true;
     }
 
     @Override
     protected void adjustValueAfterTypeChange(final HtmlInput oldInput, final BrowserVersion browserVersion) {
         setRawValue("");
     }
 }