com.squarespace.cldrengine.units.UnitsImpl Maven / Gradle / Ivy

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package com.squarespace.cldrengine.units;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

import com.squarespace.cldrengine.api.Bundle;
import com.squarespace.cldrengine.api.ListPatternType;
import com.squarespace.cldrengine.api.Part;
import com.squarespace.cldrengine.api.Quantity;
import com.squarespace.cldrengine.api.UnitFormatOptions;
import com.squarespace.cldrengine.api.UnitFormatStyleType;
import com.squarespace.cldrengine.api.UnitLength;
import com.squarespace.cldrengine.api.UnitType;
import com.squarespace.cldrengine.api.Units;
import com.squarespace.cldrengine.internal.Internals;
import com.squarespace.cldrengine.internal.Meta;
import com.squarespace.cldrengine.internal.PartsValue;
import com.squarespace.cldrengine.internal.PrivateApi;
import com.squarespace.cldrengine.numbers.NumberParams;
import com.squarespace.cldrengine.numbers.NumberRenderer;

public class UnitsImpl implements Units {

  private static final UnitFormatOptions DEFAULT_OPTIONS = UnitFormatOptions.build()
      .length(UnitLength.LONG)
      .style(UnitFormatStyleType.DECIMAL);

  private final Bundle bundle;
  private final Internals internal;
  private final PrivateApi privateApi;

  public UnitsImpl(Bundle bundle, Internals internal, PrivateApi privateApi) {
    this.bundle = bundle;
    this.internal = internal;
    this.privateApi = privateApi;
  }

  @Override
  public List availableUnits() {
    return Arrays.asList(Meta.KEY_UNIT_ID.keys());
  }

  @Override
  public String getUnitDisplayName(UnitType unit, UnitLength length) {
    if (length == null) {
      length = UnitLength.LONG;
    }
    return this.internal.units.getDisplayName(bundle, unit, length);
  }

  @Override
  public String formatQuantity(Quantity qty) {
    return formatQuantity(qty, null);
  }

  @Override
  public String formatQuantity(Quantity qty, UnitFormatOptions options) {
    options = (options == null ? DEFAULT_OPTIONS : options).mergeIf(DEFAULT_OPTIONS);
    NumberParams params = this.privateApi.getNumberParams(options.numberSystem.get(), null);
    NumberRenderer renderer = this.internal.numbers.stringRenderer(params);
    return this.internal.units.format(bundle, renderer, qty, options, params);
  }

  @Override
  public List formatQuantityToParts(Quantity qty) {
    return formatQuantityToParts(qty, null);
  }

  @Override
  public List formatQuantityToParts(Quantity qty, UnitFormatOptions options) {
    options = (options == null ? DEFAULT_OPTIONS : options).mergeIf(DEFAULT_OPTIONS);
    NumberParams params = this.privateApi.getNumberParams(options.numberSystem.get(), null);
    NumberRenderer> renderer = this.internal.numbers.partsRenderer(params);
    return this.internal.units.format(bundle, renderer, qty, options, params);
  }

  @Override
  public String formatQuantitySequence(List qty) {
    return formatQuantitySequence(qty, null);
  }

  @Override
  public String formatQuantitySequence(List qty, UnitFormatOptions options) {
    final UnitFormatOptions uoptions = (options == null ? DEFAULT_OPTIONS : options).mergeIf(DEFAULT_OPTIONS);
    List items = qty.stream().map(q -> this.formatQuantity(q, uoptions))
        .collect(Collectors.toList());
    ListPatternType type = this.selectListType(uoptions);
    return this.internal.general.formatList(bundle, items, type);
  }

  @Override
  public List formatQuantitySequenceToParts(List qty) {
    return formatQuantitySequenceToParts(qty, null);
  }

  @Override
  public List formatQuantitySequenceToParts(List qty, UnitFormatOptions options) {
    final UnitFormatOptions uoptions = (options == null ? DEFAULT_OPTIONS : options).mergeIf(DEFAULT_OPTIONS);
    List> parts = qty.stream().map(q -> this.formatQuantityToParts(q, uoptions))
        .collect(Collectors.toList());
    ListPatternType type = this.selectListType(uoptions);
    return this.internal.general.formatListImpl(bundle, new PartsValue(), parts, type);
  }

  protected ListPatternType selectListType(UnitFormatOptions options) {
    if (options.length.ok()) {
      switch (options.length.get()) {
        case NARROW:
          return ListPatternType.UNIT_NARROW;
        case SHORT:
          return ListPatternType.UNIT_SHORT;
        default:
          break;
      }
    }
    return ListPatternType.UNIT_LONG;
  }
}