/*
 * 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
 *
 *     http://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.gbif.api.model.registry;

import com.fasterxml.jackson.annotation.JsonRawValue;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

import com.fasterxml.jackson.databind.JsonNode;

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;

import lombok.Data;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

import org.gbif.api.annotation.Experimental;
import org.gbif.api.model.common.DOI;
import org.gbif.api.model.registry.eml.Collection;
import org.gbif.api.model.registry.eml.DataDescription;
import org.gbif.api.model.registry.eml.KeywordCollection;
import org.gbif.api.model.registry.eml.Project;
import org.gbif.api.model.registry.eml.SamplingDescription;
import org.gbif.api.model.registry.eml.TaxonomicCoverages;
import org.gbif.api.model.registry.eml.curatorial.CuratorialUnitComposite;
import org.gbif.api.model.registry.eml.geospatial.GeospatialCoverage;
import org.gbif.api.model.registry.eml.temporal.TemporalCoverage;
import org.gbif.api.util.HttpURI;
import org.gbif.api.vocabulary.Country;
import org.gbif.api.vocabulary.DatasetSubtype;
import org.gbif.api.vocabulary.DatasetType;
import org.gbif.api.vocabulary.Language;
import org.gbif.api.vocabulary.License;
import org.gbif.api.vocabulary.MaintenanceUpdateFrequency;

import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.StringJoiner;
import java.util.UUID;

import jakarta.annotation.Nullable;
import jakarta.validation.Valid;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.NotNull;
import jakarta.validation.constraints.Null;
import jakarta.validation.constraints.Size;

import io.swagger.v3.oas.annotations.media.Schema;

/**
 * A GBIF dataset which provides occurrence data, checklist data, sampling event data or metadata.
 * This Dataset class is covering all the GBIF metadata profile v1.3, but only a few properties are kept in the
 * database table:
 * <ul>
 * <li>key</li>
 * <li>parentDatasetKey</li>
 * <li>duplicateOfDatasetKey</li>
 * <li>version</li>
 * <li>installationKey</li>
 * <li>publishingOrganizationKey</li>
 * <li>publishingOrganizationName</li>
 * <li>networkKeys</li>
 * <li>license</li>
 * <li>maintenanceUpdateFrequency</li>
 * <li>external</li>
 * <li>numConstituents</li>
 * <li>type</li>
 * <li>subtype</li>
 * <li>title</li>
 * <li>alias</li>
 * <li>abbreviation</li>
 * <li>description</li>
 * <li>language</li>
 * <li>homepage</li>
 * <li>logoUrl</li>
 * <li>citation</li>
 * <li>rights</li>
 * <li>lockedForAutoUpdate</li>
 * <li>createdBy</li>
 * <li>modifiedBy</li>
 * <li>created</li>
 * <li>modified</li>
 * <li>deleted</li>
 * </ul>
 *
 * @see <a href="http://rs.gbif.org/schema/eml-gbif-profile/dev/eml.xsd">GBIF EML Profile XML Schema</a>
 */
@SuppressWarnings({"unused", "LombokSetterMayBeUsed", "LombokGetterMayBeUsed"})
public class Dataset
    implements NetworkEntity,
    Contactable,
    Endpointable,
    MachineTaggable,
    Taggable,
    Identifiable,
    Commentable,
    LenientEquals<Dataset> {

  @Schema(
    description = "Unique GBIF key for the dataset. This is used in the" +
      "GBIF API, but outside GBIF it is best to refer to a dataset by its DOI.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private UUID key;

  @Schema(
    description = "If set, this dataset is a sub-dataset of the parent."
  )
  private UUID parentDatasetKey;

  @Schema(
    description = "A dataset of which this dataset is a duplicate. Typically, " +
      "this means this dataset is an old version of the duplicated dataset, " +
      "which has replaced this dataset. Therefore **this link is usually found " +
      "on deleted datasets**."
  )
  private UUID duplicateOfDatasetKey;

  @Schema(
    description = "The installation providing access to the source dataset.\n\n" +
      "*(NB Not required for updates.)*"
  )
  private UUID installationKey;

  @Schema(
    description = "The publishing organization publishing this dataset.\n\n" +
      "*(NB Not required for updates.)*"
  )
  private UUID publishingOrganizationKey;

  @Schema(
      description = "The publishing organization name.\n\n" +
          "*(NB Not required for updates.)*"
  )
  private String publishingOrganizationName;

  @Schema(
    description = "A list of GBIF Networks to which this dataset belongs."
  )
  private List<UUID> networkKeys;

  @Schema(
    description = "The primary Digital Object Identifier (DOI) for this dataset.",
    implementation = String.class,
    pattern = "(10(?:\\.[0-9]+)+)" + "/(.+)"
  )
  private DOI doi;

  @Schema(
    description = "The version of the published dataset."
  )
  private String version;

  @Schema(
    description = "Not currently used."
  )
  private boolean external;

  @Schema(
    description = "If set, the number of sub-datasets of this parent dataset."
  )
  private int numConstituents;

  @Schema(
    description = "The primary type of the dataset.\n\n" +
      "*(NB Not required for updates.)*"
  )
  private DatasetType type;

  @Schema(
    description = "The sub-type of the dataset."
  )
  private DatasetSubtype subtype;

  @Schema(
      description = "Concise name of the dataset."
  )
  private String shortName;

  @Schema(
    description = "The title of the dataset.\n\n" +
      "*(NB Not required for updates.)*"
  )
  private String title;

  @Schema(
    description = "An alias for this dataset. Rarely used."
  )
  private String alias;

  @Schema(
    description = "An abbreviation for this dataset. Rarely used."
  )
  private String abbreviation;

  @Schema(
    description = "A description of the dataset."
  )
  private String description;

  @Schema(
    description = "The language of the dataset metadata.\n\n" +
      "*(NB Not required for updates.)*"
  )
  private Language language = Language.ENGLISH; // sensible default as it is not null

  @Schema(
    description = "A homepage with further details on the dataset."
  )
  private URI homepage;

  @Schema(
    description = "A logo for the dataset, accessible over HTTP."
  )
  private URI logoUrl;

  @Schema(
    description = "The citation recommended by GBIF for use when citing this dataset."
  )
  private Citation citation = new Citation();

  @Schema(
    description = "Contacts use to generate a citation."
  )
  private List<CitationContact> contactsCitation = new ArrayList<>();

  @Schema(
    description = "Intellectual property rights applied to this dataset.\n\n" +
      "*Rarely used, see `license` instead.*"
  )
  private String rights;

  @Schema(
    description = "If true, any new or updated metadata is ignored.\n\n" +
      "This is generally used when the publisher has technical problems or " +
      "limitations with their publication system.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private boolean lockedForAutoUpdate;

  @Schema(
    description = "The GBIF username of the creator of the dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private String createdBy;

  @Schema(
    description = "The GBIF username of the last user to modify the dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private String modifiedBy;

  @Schema(
    description = "Timestamp of when the dataset was created.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Date created;

  @Schema(
    description = "Timestamp of when the dataset was modified.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Date modified;

  @Schema(
    description = "If present, the dataset was deleted at this time. " +
      "It is possible for it to be restored in the future.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Date deleted;

  @Schema(
    description = "A list of contacts associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Contact> contacts = new ArrayList<>();

  @Schema(
    description = "A list of endpoints associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Endpoint> endpoints = new ArrayList<>();

  @Schema(
    description = "A list of machine tags associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<MachineTag> machineTags = new ArrayList<>();

  @Schema(
    description = "A list of tags associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Tag> tags = new ArrayList<>();

  @Schema(
    description = "A list of identifiers associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Identifier> identifiers = new ArrayList<>();

  @Schema(
    description = "A list of comments associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Comment> comments = new ArrayList<>();

  // EML specific properties which are not persisted on the dataset table!
  @Schema(
    description = "Citations retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Citation> bibliographicCitations = new ArrayList<>();

  @Schema(
    description = "Curatorial unit information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<CuratorialUnitComposite> curatorialUnits = new ArrayList<>();

  @Schema(
    description = "Taxonomic coverage information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<TaxonomicCoverages> taxonomicCoverages = new ArrayList<>();

  @Schema(
    description = "Geographic coverage description retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private String geographicCoverageDescription;

  @Schema(
    description = "Geospatial coverage information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<GeospatialCoverage> geographicCoverages = new ArrayList<>();

  @Schema(
    description = "Temporal coverage information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<TemporalCoverage> temporalCoverages = new ArrayList<>();

  @Schema(
    description = "Keyword collections retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<KeywordCollection> keywordCollections = new ArrayList<>();

  @Schema(
    description = "Project information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Project project;

  @Schema(
    description = "Sampling description retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private SamplingDescription samplingDescription;

  @Schema(
    description = "Country coverage information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Set<Country> countryCoverage = new HashSet<>();

  @Schema(
    description = "Collection information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<Collection> collections = new ArrayList<>();

  @Schema(
    description = "Data description information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private List<DataDescription> dataDescriptions = new ArrayList<>();

  @Schema(
    description = "Data language information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Language dataLanguage;

  @Schema(
    description = "Purpose information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private String purpose;

  @Schema(
      description = "An overview of the background and context for the dataset.",
      accessMode = Schema.AccessMode.READ_ONLY
  )
  private String introduction;

  @Schema(
      description = "A high level overview of interpretation, structure, and content of the dataset.",
      accessMode = Schema.AccessMode.READ_ONLY
  )
  private String gettingStarted;

  @Schema(
      description = "Text that acknowledges funders and other key contributors.",
      accessMode = Schema.AccessMode.READ_ONLY
  )
  private String acknowledgements;

  @Schema(
    description = "Additional information retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private String additionalInfo;

  @Schema(
    description = "The publication date retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Date pubDate;

  @Schema(
    description = "The maintenance update frequency retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private MaintenanceUpdateFrequency maintenanceUpdateFrequency;

  @Schema(
    description = "The maintenance description retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private String maintenanceDescription;

  @Schema(
    description = "The data and metadata license retrieved from this dataset's metadata documents.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private License license;

  @Schema(
    description = "Basic metadata of the Darwin Core Archive (DwC-A) associated with this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private DwcA dwca;

  @Schema(
    description = "Category of this dataset.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  private Set<String> category;

  @Schema(
    description =
        "Approximate record counts for this dataset, sourced from the dataset search index. "
            + "Values are snapshots taken at index time and may lag live occurrence or checklist data. "
            + "Useful to avoid extra calls for occurrence and name-usage totals; not authoritative.",
    accessMode = Schema.AccessMode.READ_ONLY
  )
  @Nullable
  @Getter
  @Setter
  private ApproximateCounts approximateCounts;

  @Override
  public UUID getKey() {
    return key;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setKey(UUID key) {
    this.key = key;
  }

  @Size(max = 10)
  @Nullable
  public String getVersion() {
    return version;
  }

  public void setVersion(String version) {
    this.version = version;
  }

  @Override
  public String getTitle() {
    return title;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setTitle(String title) {
    this.title = title;
  }

  @Override
  @Nullable
  public String getDescription() {
    return description;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setDescription(String description) {
    this.description = description;
  }

  @Override
  public Date getCreated() {
    return created;
  }

  /**
   * Autoassigned in the database table, ignored when persisted.
   */
  @Override
  public void setCreated(Date created) {
    this.created = created;
  }

  @Override
  public Date getModified() {
    return modified;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setModified(Date modified) {
    this.modified = modified;
  }

  @Override
  @Nullable
  public Date getDeleted() {
    return deleted;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setDeleted(Date deleted) {
    this.deleted = deleted;
  }

  @Nullable
  public UUID getParentDatasetKey() {
    return parentDatasetKey;
  }

  /**
   * Persisted in the database table.
   */
  public void setParentDatasetKey(UUID parentDatasetKey) {
    this.parentDatasetKey = parentDatasetKey;
  }

  /**
   * If a dataset is registered with GBIF through more than one place we'll mark all but one as a duplicate by pointing
   * it to the canonical dataset. That is done using this field. If it is {@code null} then this is not a known
   * duplicate.
   */
  @Nullable
  public UUID getDuplicateOfDatasetKey() {
    return duplicateOfDatasetKey;
  }

  /**
   * Persisted in the database table.
   */
  public void setDuplicateOfDatasetKey(UUID duplicateOfDatasetKey) {
    this.duplicateOfDatasetKey = duplicateOfDatasetKey;
  }

  @NotNull
  public UUID getInstallationKey() {
    return installationKey;
  }

  /**
   * Persisted in the database table.
   */
  public void setInstallationKey(UUID installationKey) {
    this.installationKey = installationKey;
  }

  @NotNull
  public UUID getPublishingOrganizationKey() {
    return publishingOrganizationKey;
  }

  /**
   * Persisted in the database table.
   */
  public void setPublishingOrganizationKey(UUID publishingOrganizationKey) {
    this.publishingOrganizationKey = publishingOrganizationKey;
  }

  @Nullable
  public String getPublishingOrganizationName() {
    return publishingOrganizationName;
  }

  public void setPublishingOrganizationName(String publishingOrganizationName) {
    this.publishingOrganizationName = publishingOrganizationName;
  }

  /**
   * Networks in which this dataset is a constituent.
   */
  public List<UUID> getNetworkKeys() {
    return networkKeys;
  }

  public void setNetworkKeys(List<UUID> networkKeys) {
    this.networkKeys = networkKeys;
  }

  /**
   * Persisted in the database table.
   *
   * @return the frequency with which changes are made to the dataset
   */
  @Nullable
  public MaintenanceUpdateFrequency getMaintenanceUpdateFrequency() {
    return maintenanceUpdateFrequency;
  }
  /**
   * Persisted in the database table.
   */
  public void setMaintenanceUpdateFrequency(MaintenanceUpdateFrequency maintenanceUpdateFrequency) {
    this.maintenanceUpdateFrequency = maintenanceUpdateFrequency;
  }

  /**
   * A description of the maintenance frequency of this resource.
   *
   * @return the description of the maintenance frequency of this resource
   */
  public String getMaintenanceDescription() {
    return maintenanceDescription;
  }

  public void setMaintenanceDescription(String maintenanceDescription) {
    this.maintenanceDescription = maintenanceDescription;
  }

  /**
   * Persisted in the database table.
   * </br>
   * Note for backwards compatibility, we cannot apply @NotNull to license. Otherwise existing users of our API
   * would have to ensure Dataset objects always populate license.
   * </br>
   * In the Registry DB, Dataset.license defaults to CC-BY 4.0. Therefore license must be excluded from lenientEquals
   * method.
   *
   * @return the License applied to the dataset
   *
   * @see <a href="http://dev.gbif.org/issues/browse/POR-3133">POR-3133</a>
   */
  public License getLicense() {
    return license;
  }

  /**
   * Persisted in the database table. Can be interpreted from EML.intellectualRights using machine readable format:
   * <pre>
   * {@code
   * <intellectualRights>
   *   <para>This work is licensed under a <ulink url="http://creativecommons.org/licenses/by/4.0/legalcode"><citetitle>Creative Commons Attribution (CC-BY) 4.0 License</citetitle></ulink>.</para>
   * </intellectualRights>
   * }
   * </pre>
   */
  public void setLicense(License license) {
    this.license = license;
  }

  /**
   * @return the primary DOI for this dataset regardless if issued by GBIF or publisher
   */
  public DOI getDoi() {
    return doi;
  }

  public void setDoi(DOI doi) {
    this.doi = doi;
  }

  public boolean isExternal() {
    return external;
  }

  /**
   * Persisted in the database table.
   */
  public void setExternal(boolean external) {
    this.external = external;
  }

  @Min(0)
  public int getNumConstituents() {
    return numConstituents;
  }

  /**
   * Not persisted in the database table, but calculated on the fly.
   */
  public void setNumConstituents(int numConstituents) {
    this.numConstituents = numConstituents;
  }

  @NotNull
  public DatasetType getType() {
    return type;
  }

  /**
   * Persisted in the database table.
   */
  public void setType(DatasetType type) {
    this.type = type;
  }

  @Nullable
  public DatasetSubtype getSubtype() {
    return subtype;
  }

  /**
   * Persisted in the database table.
   */
  public void setSubtype(DatasetSubtype subtype) {
    this.subtype = subtype;
  }

  @Nullable
  public String getShortName() {
    return shortName;
  }

  public void setShortName(String shortName) {
    this.shortName = shortName;
  }

  /**
   * TODO: Document what this is
   */
  @Nullable
  @Size(min = 2, max = 50)
  public String getAlias() {
    return alias;
  }

  /**
   * Persisted in the database table.
   */
  public void setAlias(String alias) {
    this.alias = alias;
  }

  /**
   * TODO: Document what this is
   * TODO: are both alias & abbreviation needed?
   */
  @Nullable
  @Size(min = 1, max = 50)
  public String getAbbreviation() {
    return abbreviation;
  }

  /**
   * Persisted in the database table.
   */
  public void setAbbreviation(String abbreviation) {
    this.abbreviation = abbreviation;
  }

  @NotNull
  public Language getLanguage() {
    return language;
  }

  /**
   * Persisted in the database table.
   */
  public void setLanguage(Language language) {
    this.language = language;
  }

  @HttpURI
  @Nullable
  public URI getHomepage() {
    return homepage;
  }

  /**
   * Persisted in the database table.
   */
  public void setHomepage(URI homepage) {
    this.homepage = homepage;
  }

  @HttpURI
  @Nullable
  public URI getLogoUrl() {
    return logoUrl;
  }

  /**
   * Persisted in the database table.
   */
  public void setLogoUrl(URI logoUrl) {
    this.logoUrl = logoUrl;
  }

  /**
   * The exact form of how to cite this dataset.
   */
  @Nullable
  @Valid
  public Citation getCitation() {
    return citation;
  }

  /**
   * Persisted in the database table.
   */
  public void setCitation(Citation citation) {
    this.citation = citation;
  }

  /**
   * A generated list of contacts used in the citation text when it is generated by the GBIF API.
   */
  @Nullable
  public List<CitationContact> getContactsCitation() {
    return contactsCitation;
  }

  public void setContactsCitation(List<CitationContact> contactsCitation) {
    this.contactsCitation = contactsCitation;
  }

  /**
   * Any kind of (copy)rights/IPR statements that apply to the datasets data.
   */
  @Nullable
  @Size(min = 1)
  public String getRights() {
    return rights;
  }

  /**
   * Persisted in the database table.
   */
  public void setRights(String rights) {
    this.rights = rights;
  }

  public boolean isLockedForAutoUpdate() {
    return lockedForAutoUpdate;
  }

  /**
   * Persisted in the database table.
   */
  public void setLockedForAutoUpdate(boolean lockedForAutoUpdate) {
    this.lockedForAutoUpdate = lockedForAutoUpdate;
  }

  @Override
  public String getCreatedBy() {
    return createdBy;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setCreatedBy(String createdBy) {
    this.createdBy = createdBy;
  }

  @Override
  public String getModifiedBy() {
    return modifiedBy;
  }

  /**
   * Persisted in the database table.
   */
  @Override
  public void setModifiedBy(String modifiedBy) {
    this.modifiedBy = modifiedBy;
  }

  @Override
  public List<Contact> getContacts() {
    return contacts;
  }

  @Override
  public void setContacts(List<Contact> contacts) {
    this.contacts = contacts;
  }

  @Override
  public List<Endpoint> getEndpoints() {
    return endpoints;
  }

  @Override
  public void setEndpoints(List<Endpoint> endpoints) {
    this.endpoints = endpoints;
  }

  @Override
  public void addEndpoint(Endpoint endpoint) {
    endpoints.add(endpoint);
  }

  @Override
  public List<MachineTag> getMachineTags() {
    return machineTags;
  }

  @Override
  public void setMachineTags(List<MachineTag> machineTags) {
    this.machineTags = machineTags;
  }

  @Override
  public void addMachineTag(MachineTag machineTag) {
    machineTags.add(machineTag);
  }

  @Override
  public List<Tag> getTags() {
    return tags;
  }

  @Override
  public void setTags(List<Tag> tags) {
    this.tags = tags;
  }

  @Override
  public List<Identifier> getIdentifiers() {
    return identifiers;
  }

  @Override
  public void setIdentifiers(List<Identifier> identifiers) {
    this.identifiers = identifiers;
  }

  @Override
  public List<Comment> getComments() {
    return comments;
  }

  @Override
  public void setComments(List<Comment> comments) {
    this.comments = comments;
  }

  public List<Citation> getBibliographicCitations() {
    return bibliographicCitations;
  }

  public void setBibliographicCitations(List<Citation> bibliographicCitations) {
    this.bibliographicCitations = bibliographicCitations;
  }

  public List<CuratorialUnitComposite> getCuratorialUnits() {
    return curatorialUnits;
  }

  public void setCuratorialUnits(List<CuratorialUnitComposite> curatorialUnits) {
    this.curatorialUnits = curatorialUnits;
  }

  public List<TaxonomicCoverages> getTaxonomicCoverages() {
    return taxonomicCoverages;
  }

  public void setTaxonomicCoverages(List<TaxonomicCoverages> taxonomicCoverages) {
    this.taxonomicCoverages = taxonomicCoverages;
  }

  public String getGeographicCoverageDescription() {
    return geographicCoverageDescription;
  }

  public void setGeographicCoverageDescription(String geographicCoverageDescription) {
    this.geographicCoverageDescription = geographicCoverageDescription;
  }

  public List<GeospatialCoverage> getGeographicCoverages() {
    return geographicCoverages;
  }

  public void setGeographicCoverages(List<GeospatialCoverage> geographicCoverages) {
    this.geographicCoverages = geographicCoverages;
  }

  public List<TemporalCoverage> getTemporalCoverages() {
    return temporalCoverages;
  }

  public void setTemporalCoverages(List<TemporalCoverage> temporalCoverages) {
    this.temporalCoverages = temporalCoverages;
  }

  public List<KeywordCollection> getKeywordCollections() {
    return keywordCollections;
  }

  public void setKeywordCollections(List<KeywordCollection> keywordCollections) {
    this.keywordCollections = keywordCollections;
  }

  public Project getProject() {
    return project;
  }

  public void setProject(Project project) {
    this.project = project;
  }

  public SamplingDescription getSamplingDescription() {
    return samplingDescription;
  }

  public void setSamplingDescription(SamplingDescription samplingDescription) {
    this.samplingDescription = samplingDescription;
  }

  public Set<Country> getCountryCoverage() {
    return countryCoverage;
  }

  public void setCountryCoverage(Set<Country> countryCoverage) {
    this.countryCoverage = countryCoverage;
  }

  public List<Collection> getCollections() {
    return collections;
  }

  public void setCollections(List<Collection> collections) {
    this.collections = collections;
  }

  public List<DataDescription> getDataDescriptions() {
    return dataDescriptions;
  }

  public void setDataDescriptions(List<DataDescription> dataDescriptions) {
    this.dataDescriptions = dataDescriptions;
  }

  public Language getDataLanguage() {
    return dataLanguage;
  }

  public void setDataLanguage(Language dataLanguage) {
    this.dataLanguage = dataLanguage;
  }

  public String getPurpose() {
    return purpose;
  }

  public void setPurpose(String purpose) {
    this.purpose = purpose;
  }

  @Nullable
  public String getIntroduction() {
    return introduction;
  }

  public void setIntroduction(String introduction) {
    this.introduction = introduction;
  }

  @Nullable
  public String getGettingStarted() {
    return gettingStarted;
  }

  public void setGettingStarted(String gettingStarted) {
    this.gettingStarted = gettingStarted;
  }

  @Nullable
  public String getAcknowledgements() {
    return acknowledgements;
  }

  public void setAcknowledgements(String acknowledgements) {
    this.acknowledgements = acknowledgements;
  }

  public String getAdditionalInfo() {
    return additionalInfo;
  }

  public void setAdditionalInfo(String additionalInfo) {
    this.additionalInfo = additionalInfo;
  }

  public Date getPubDate() {
    return pubDate;
  }

  public void setPubDate(Date pubDate) {
    this.pubDate = pubDate;
  }

  @Nullable
  @Valid
  public DwcA getDwca() {
    return dwca;
  }

  public void setDwca(DwcA dwca) {
    this.dwca = dwca;
  }

  public Set<String> getCategory() {
    return category;
  }

  public void setCategory(Set<String> category) {
    this.category = category;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    Dataset dataset = (Dataset) o;
    return external == dataset.external
        && numConstituents == dataset.numConstituents
        && lockedForAutoUpdate == dataset.lockedForAutoUpdate
        && Objects.equals(key, dataset.key)
        && Objects.equals(parentDatasetKey, dataset.parentDatasetKey)
        && Objects.equals(duplicateOfDatasetKey, dataset.duplicateOfDatasetKey)
        && Objects.equals(installationKey, dataset.installationKey)
        && Objects.equals(publishingOrganizationKey, dataset.publishingOrganizationKey)
        && Objects.equals(publishingOrganizationName, dataset.publishingOrganizationName)
        && Objects.equals(networkKeys, dataset.networkKeys)
        && Objects.equals(doi, dataset.doi)
        && Objects.equals(version, dataset.version)
        && type == dataset.type
        && subtype == dataset.subtype
        && Objects.equals(shortName, dataset.shortName)
        && Objects.equals(title, dataset.title)
        && Objects.equals(alias, dataset.alias)
        && Objects.equals(abbreviation, dataset.abbreviation)
        && Objects.equals(description, dataset.description)
        && language == dataset.language
        && Objects.equals(homepage, dataset.homepage)
        && Objects.equals(logoUrl, dataset.logoUrl)
        && Objects.equals(citation, dataset.citation)
        && Objects.equals(contactsCitation, dataset.contactsCitation)
        && Objects.equals(rights, dataset.rights)
        && Objects.equals(createdBy, dataset.createdBy)
        && Objects.equals(modifiedBy, dataset.modifiedBy)
        && Objects.equals(created, dataset.created)
        && Objects.equals(modified, dataset.modified)
        && Objects.equals(deleted, dataset.deleted)
        && Objects.equals(contacts, dataset.contacts)
        && Objects.equals(endpoints, dataset.endpoints)
        && Objects.equals(machineTags, dataset.machineTags)
        && Objects.equals(tags, dataset.tags)
        && Objects.equals(identifiers, dataset.identifiers)
        && Objects.equals(comments, dataset.comments)
        && Objects.equals(bibliographicCitations, dataset.bibliographicCitations)
        && Objects.equals(curatorialUnits, dataset.curatorialUnits)
        && Objects.equals(taxonomicCoverages, dataset.taxonomicCoverages)
        && Objects.equals(geographicCoverageDescription, dataset.geographicCoverageDescription)
        && Objects.equals(geographicCoverages, dataset.geographicCoverages)
        && Objects.equals(temporalCoverages, dataset.temporalCoverages)
        && Objects.equals(keywordCollections, dataset.keywordCollections)
        && Objects.equals(project, dataset.project)
        && Objects.equals(samplingDescription, dataset.samplingDescription)
        && Objects.equals(countryCoverage, dataset.countryCoverage)
        && Objects.equals(collections, dataset.collections)
        && Objects.equals(dataDescriptions, dataset.dataDescriptions)
        && dataLanguage == dataset.dataLanguage
        && Objects.equals(purpose, dataset.purpose)
        && Objects.equals(introduction, dataset.introduction)
        && Objects.equals(gettingStarted, dataset.gettingStarted)
        && Objects.equals(acknowledgements, dataset.acknowledgements)
        && Objects.equals(additionalInfo, dataset.additionalInfo)
        && Objects.equals(pubDate, dataset.pubDate)
        && maintenanceUpdateFrequency == dataset.maintenanceUpdateFrequency
        && Objects.equals(maintenanceDescription, dataset.maintenanceDescription)
        && license == dataset.license
        && Objects.equals(dwca, dataset.dwca)
        && Objects.equals(category, dataset.category);
  }

  @Override
  public int hashCode() {
    return Objects.hash(
        key,
        parentDatasetKey,
        duplicateOfDatasetKey,
        installationKey,
        publishingOrganizationKey,
        publishingOrganizationName,
        networkKeys,
        doi,
        version,
        external,
        numConstituents,
        type,
        subtype,
        shortName,
        title,
        alias,
        abbreviation,
        description,
        language,
        homepage,
        logoUrl,
        citation,
        contactsCitation,
        rights,
        lockedForAutoUpdate,
        createdBy,
        modifiedBy,
        created,
        modified,
        deleted,
        contacts,
        endpoints,
        machineTags,
        tags,
        identifiers,
        comments,
        bibliographicCitations,
        curatorialUnits,
        taxonomicCoverages,
        geographicCoverageDescription,
        geographicCoverages,
        temporalCoverages,
        keywordCollections,
        project,
        samplingDescription,
        countryCoverage,
        collections,
        dataDescriptions,
        dataLanguage,
        purpose,
        introduction,
        gettingStarted,
        acknowledgements,
        additionalInfo,
        pubDate,
        maintenanceUpdateFrequency,
        maintenanceDescription,
        license,
        dwca,
        category);
  }

  @Override
  public String toString() {
    return new StringJoiner(", ", Dataset.class.getSimpleName() + "[", "]")
        .add("key=" + key)
        .add("parentDatasetKey=" + parentDatasetKey)
        .add("duplicateOfDatasetKey=" + duplicateOfDatasetKey)
        .add("installationKey=" + installationKey)
        .add("publishingOrganizationKey=" + publishingOrganizationKey)
        .add("publishingOrganizationName=" + publishingOrganizationName)
        .add("networkKeys=" + networkKeys)
        .add("doi=" + doi)
        .add("version='" + version + "'")
        .add("external=" + external)
        .add("numConstituents=" + numConstituents)
        .add("type=" + type)
        .add("subtype=" + subtype)
        .add("shortName='" + shortName + "'")
        .add("title='" + title + "'")
        .add("alias='" + alias + "'")
        .add("abbreviation='" + abbreviation + "'")
        .add("description='" + description + "'")
        .add("language=" + language)
        .add("homepage=" + homepage)
        .add("logoUrl=" + logoUrl)
        .add("citation=" + citation)
        .add("contactsCitation=" + contactsCitation)
        .add("rights='" + rights + "'")
        .add("lockedForAutoUpdate=" + lockedForAutoUpdate)
        .add("createdBy='" + createdBy + "'")
        .add("modifiedBy='" + modifiedBy + "'")
        .add("created=" + created)
        .add("modified=" + modified)
        .add("deleted=" + deleted)
        .add("contacts=" + contacts)
        .add("endpoints=" + endpoints)
        .add("machineTags=" + machineTags)
        .add("tags=" + tags)
        .add("identifiers=" + identifiers)
        .add("comments=" + comments)
        .add("bibliographicCitations=" + bibliographicCitations)
        .add("curatorialUnits=" + curatorialUnits)
        .add("taxonomicCoverages=" + taxonomicCoverages)
        .add("geographicCoverageDescription='" + geographicCoverageDescription + "'")
        .add("geographicCoverages=" + geographicCoverages)
        .add("temporalCoverages=" + temporalCoverages)
        .add("keywordCollections=" + keywordCollections)
        .add("project=" + project)
        .add("samplingDescription=" + samplingDescription)
        .add("countryCoverage=" + countryCoverage)
        .add("collections=" + collections)
        .add("dataDescriptions=" + dataDescriptions)
        .add("dataLanguage=" + dataLanguage)
        .add("purpose='" + purpose + "'")
        .add("introduction='" + introduction + "'")
        .add("gettingStarted='" + gettingStarted + "'")
        .add("acknowledgements='" + acknowledgements + "'")
        .add("additionalInfo='" + additionalInfo + "'")
        .add("pubDate=" + pubDate)
        .add("maintenanceUpdateFrequency=" + maintenanceUpdateFrequency)
        .add("maintenanceDescription='" + maintenanceDescription + "'")
        .add("license=" + license)
        .add("dwca=" + dwca)
        .add("category=" + category)
        .add("approximateCounts=" + approximateCounts)
        .toString();
  }

  /**
   * Only checks the persisted properties, excluding the server controlled fields (key, created, license etc).
   * Does not include the nested properties.
   */
  @Override
  public boolean lenientEquals(Dataset other) {
    if (this == other) {
      return true;
    }
    if (other == null) return false;
    return Objects.equals(this.parentDatasetKey, other.parentDatasetKey)
        && Objects.equals(this.duplicateOfDatasetKey, other.duplicateOfDatasetKey)
        && Objects.equals(this.installationKey, other.installationKey)
        && Objects.equals(this.publishingOrganizationKey, other.publishingOrganizationKey)
        && Objects.equals(this.publishingOrganizationName, other.publishingOrganizationName)
        && Objects.equals(this.doi, other.doi)
        && Objects.equals(this.external, other.external)
        && Objects.equals(this.type, other.type)
        && Objects.equals(this.subtype, other.subtype)
        && Objects.equals(this.title, other.title)
        && Objects.equals(this.alias, other.alias)
        && Objects.equals(this.abbreviation, other.abbreviation)
        && Objects.equals(this.description, other.description)
        && Objects.equals(this.language, other.language)
        && Objects.equals(this.homepage, other.homepage)
        && Objects.equals(this.logoUrl, other.logoUrl)
        && Objects.equals(this.citation, other.citation)
        && Objects.equals(this.rights, other.rights)
        && Objects.equals(this.lockedForAutoUpdate, other.lockedForAutoUpdate)
        && Objects.equals(this.deleted, other.deleted)
        && Objects.equals(this.maintenanceUpdateFrequency, other.maintenanceUpdateFrequency)
        && Objects.equals(this.maintenanceDescription, other.maintenanceDescription)
        && Objects.equals(this.dwca, other.dwca)
        && Objects.equals(this.category, other.category);
  }

  /**
   * Metadata of dataset that has been published as a Darwin Core Archive (DwC-A).
   */
  @NoArgsConstructor
  @Data
  public static class DwcA {
    @Schema(
      description = "This attribute, within the <core>, indicates the specific " +
                    "type of data being represented in the core data file.**."
    )
    private String coreType;

    @Schema(
      description = "This attribute, within the <extensions>, indicates the specific " +
                    "type of data being represented in the associated extension data file.**."
    )
    private List<String> extensions;

    @Schema(
      description = "Timestamp of when the dataset DwcA metadata was modified.",
      accessMode = Schema.AccessMode.READ_ONLY
    )
    @Null(groups = {PrePersist.class})
    private Date modified;


    public String getCoreType() {
      return coreType;
    }

    public void setCoreType(String coreType) {
      this.coreType = coreType;
    }

    @Nullable
    public List<String> getExtensions() {
      return extensions;
    }

    public void setExtensions(List<String> extensions) {
      this.extensions = extensions;
    }

    @Nullable
    public Date getModified() {
      return modified;
    }

    public void setModified(Date modified) {
      this.modified = modified;
    }
  }

  /**
   * Metadata of dataset that has been published as a <a href="https://specs.frictionlessdata.io/data-package/">DataPackage</a>.
   */
  @NoArgsConstructor
  @Data
  @Experimental
  public static class DataPackage {

    /**
     * Custom deserializer to capture raw JSON string.
     */
    public static class RawJsonDeserializer extends JsonDeserializer<String> {

      public RawJsonDeserializer() {
        // Jackson requires this
      }

      @Override
      public String deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
        JsonNode node = p.readValueAsTree();
        return node.toString(); // store the raw JSON as a string
      }
    }

    @Schema(
      description = "The  content of the <a href=\"https://specs.frictionlessdata.io/schemas/data-package.json\">datapackage.json</a> file."
    )
    @JsonDeserialize(using = RawJsonDeserializer.class)
    @JsonRawValue
    private String metadata;

    @Schema(
      description = "Timestamp of when the dataset datapackage metadata was modified.",
      accessMode = Schema.AccessMode.READ_ONLY
    )
    @Null(groups = {PrePersist.class})
    private Date modified;


    @Schema(
      description = "Unique GBIF key for the dataset.",
      accessMode = Schema.AccessMode.READ_ONLY
    )
    private UUID datasetKey;

    @Schema(
      description = "Unique GBIF key for the dataset endpoint.",
      accessMode = Schema.AccessMode.READ_ONLY
    )
    private Integer endpointKey;

    @NotNull
    public String getMetadata() {
      return metadata;
    }

    public void setMetadata(String metadata) {
      this.metadata = metadata;
    }

    @Nullable
    public Date getModified() {
      return modified;
    }

    public void setModified(Date modified) {
      this.modified = modified;
    }

    @NotNull
    public UUID getDatasetKey() {
      return datasetKey;
    }

    public void setDatasetKey(UUID datasetKey) {
      this.datasetKey = datasetKey;
    }

    @NotNull
    public Integer getEndpointKey() {
      return endpointKey;
    }

    public void setEndpointKey(Integer endpointKey) {
      this.endpointKey = endpointKey;
    }
  }
}