D-Net

package eu.dnetlib.data.mapreduce.hbase.dataimport;

import static eu.dnetlib.data.mapreduce.hbase.dataimport.DumpToActionsUtility.getArrayValues;

import static eu.dnetlib.data.mapreduce.hbase.dataimport.DumpToActionsUtility.getDefaultResulttype;

import static eu.dnetlib.data.mapreduce.hbase.dataimport.DumpToActionsUtility.getQualifier;

import static eu.dnetlib.data.mapreduce.hbase.dataimport.DumpToActionsUtility.getStringValue;

import static eu.dnetlib.data.mapreduce.hbase.dataimport.DumpToActionsUtility.isValidDate;

import java.io.IOException;

import java.io.InputStream;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.apache.commons.io.IOUtils;

import org.apache.commons.lang3.StringUtils;

import com.google.gson.Gson;

import com.google.gson.JsonArray;

import com.google.gson.JsonElement;

import com.google.gson.JsonObject;

import eu.dnetlib.actionmanager.actions.ActionFactory;

import eu.dnetlib.actionmanager.actions.AtomicAction;

import eu.dnetlib.actionmanager.common.Agent;

import eu.dnetlib.data.mapreduce.hbase.Reporter;

import eu.dnetlib.data.mapreduce.util.StreamUtils;

import eu.dnetlib.data.proto.FieldTypeProtos;

import eu.dnetlib.data.proto.FieldTypeProtos.Author;

import eu.dnetlib.data.proto.FieldTypeProtos.KeyValue;

import eu.dnetlib.data.proto.FieldTypeProtos.Qualifier;

import eu.dnetlib.data.proto.FieldTypeProtos.StringField;

import eu.dnetlib.data.proto.FieldTypeProtos.StructuredProperty;

import eu.dnetlib.data.proto.KindProtos;

import eu.dnetlib.data.proto.OafProtos;

import eu.dnetlib.data.proto.ResultProtos;

import eu.dnetlib.data.proto.TypeProtos;

import eu.dnetlib.data.transform.xml.AbstractDNetXsltFunctions;

import eu.dnetlib.miscutils.collections.Pair;

public class OrcidToActions {

	public static final String ORCID = "ORCID";

	public final static String orcidPREFIX = "orcid____";

	public static final String OPENAIRE_PREFIX = "openaire____";

	public static final String SEPARATOR = "::";

	private static Map<String, Pair<String, String>> datasources = new HashMap<String, Pair<String, String>>() {

		{

			put(ORCID.toLowerCase(), new Pair<>(ORCID, OPENAIRE_PREFIX + SEPARATOR + "orcid"));

		}

	};

	// json external id will be mapped to oaf:pid/@classid Map to oaf:pid/@classname

	private static Map<String, Pair<String, String>> externalIds = new HashMap<String, Pair<String, String>>() {

		{

			put("ark".toLowerCase(), new Pair<>("ark", "ark"));

			put("arxiv".toLowerCase(), new Pair<>("arxiv", "arXiv"));

			put("pmc".toLowerCase(), new Pair<>("pmc", "pmc"));

			put("pmid".toLowerCase(), new Pair<>("pmid", "pmid"));

			put("source-work-id".toLowerCase(), new Pair<>("orcidworkid", "orcidworkid"));

			put("urn".toLowerCase(), new Pair<>("urn", "urn"));

		}

	};

	static Map<String, Map<String, String>> typologiesMapping;

	static {

		try {

			final InputStream is = OrcidToActions.class.getResourceAsStream("/eu/dnetlib/data/mapreduce/hbase/dataimport/mapping_typologies_orcid.json");

			final String tt = IOUtils.toString(is);

			typologiesMapping = new Gson().fromJson(tt, Map.class);

		} catch (final IOException e) {

			e.printStackTrace();

		}

	}

	public static final String PID_TYPES = "dnet:pid_types";

	public static List<AtomicAction> generatePublicationActionsFromDump(final JsonObject rootElement,

			final ActionFactory factory,

			final String setName,

			final Agent agent,

			final Reporter context) {

		if (!isValid(rootElement, context)) { return null; }

		// Create OAF proto

		final OafProtos.Oaf.Builder oaf = OafProtos.Oaf.newBuilder();

		// Adding kind

		oaf.setKind(KindProtos.Kind.entity);

		// creating result proto

		final OafProtos.OafEntity.Builder entity = OafProtos.OafEntity.newBuilder().setType(TypeProtos.Type.result);

		entity.setDateofcollection("2018-10-22");

		// Adding external ids

		StreamUtils.toStream(externalIds.keySet().iterator())

				.forEach(jsonExtId -> {

					final String classid = externalIds.get(jsonExtId.toLowerCase()).getValue();

					final String classname = externalIds.get(jsonExtId.toLowerCase()).getKey();

					final String extId = getStringValue(rootElement, jsonExtId);

					if (StringUtils.isNotBlank(extId)) {

						entity.addPid(StructuredProperty.newBuilder()

								.setValue(extId)

								.setQualifier(Qualifier.newBuilder().setClassid(classid).setClassname(classname).setSchemeid("dnet:pid_types")

										.setSchemename("dnet:pid_types").build())

								.build());

					}

				});

		// Create result field

		final ResultProtos.Result.Builder result = ResultProtos.Result.newBuilder();

		// Create metadata proto

		final ResultProtos.Result.Metadata.Builder metadata = ResultProtos.Result.Metadata.newBuilder();

		// Adding source

		final String source = getStringValue(rootElement, "source");

		if (StringUtils.isNotBlank(source)) {

			metadata.addSource(StringField.newBuilder().setValue(source).build());

		}

		// Adding title

		final String title = createRepeatedField(rootElement, "titles");

		metadata.addTitle(FieldTypeProtos.StructuredProperty.newBuilder()

				.setValue(title)

				.setQualifier(getQualifier("main title", "dnet:dataCite_title"))

				.build());

		// Adding identifier

		final String id = getStringValue(rootElement, "id");

		String sourceId = null;

		if (id != null) {

			sourceId = String.format("50|%s" + SEPARATOR + "%s", orcidPREFIX, AbstractDNetXsltFunctions.md5(id));

		} else {

			sourceId = String.format("50|%s" + SEPARATOR + "%s", orcidPREFIX, AbstractDNetXsltFunctions.md5(title));

		}

		entity.setId(sourceId);

		// Adding relevant date

		settingRelevantDate(rootElement, metadata, "publication_date", "issued", true);

		// Adding type

		final String type = getStringValue(rootElement, "type");

		String cobjValue = "";

		if (StringUtils.isNotBlank(type)) {

			metadata.setResourcetype(FieldTypeProtos.Qualifier.newBuilder()

					.setClassid(type)

					.setClassname(type)

					.setSchemeid("dnet:dataCite_resource")

					.setSchemename("dnet:dataCite_resource")

					.build());

			final String typeValue = typologiesMapping.get(type).get("value");

			cobjValue = typologiesMapping.get(type).get("cobj");

			final ResultProtos.Result.Instance.Builder instance = ResultProtos.Result.Instance.newBuilder();

			// Adding hostedby

			instance.setHostedby(FieldTypeProtos.KeyValue.newBuilder()

					.setKey("10|" + OPENAIRE_PREFIX + SEPARATOR + "55045bd2a65019fd8e6741a755395c8c")

					.setValue("Unknown Repository")

					.build());

			// Adding url

			final String url = createRepeatedField(rootElement, "urls");

			if (StringUtils.isNotBlank(url)) {

				instance.addUrl(url);

			}

			final String pubDate = getPublicationDate(rootElement, "publication_date");

			if (StringUtils.isNotBlank(pubDate)) {

				instance.setDateofacceptance(FieldTypeProtos.StringField.newBuilder().setValue(pubDate).build());

			}

			// Adding collectedfrom

			final FieldTypeProtos.KeyValue collectedFrom = FieldTypeProtos.KeyValue.newBuilder()

					.setValue(ORCID)

					.setKey("10|" + OPENAIRE_PREFIX + SEPARATOR + "806360c771262b4d6770e7cdf04b5c5a")

					.build();

			instance.setCollectedfrom(collectedFrom);

			// Adding accessright

			instance.setAccessright(FieldTypeProtos.Qualifier.newBuilder()

					.setClassid("UNKNOWN")

					.setClassname("UNKNOWN")

					.setSchemeid("dnet:access_modes")

					.setSchemename("dnet:access_modes")

					.build());

			// Adding type

			instance.setInstancetype(FieldTypeProtos.Qualifier.newBuilder()

					.setClassid(cobjValue)

					.setClassname(typeValue)

					.setSchemeid("dnet:publication_resource")

					.setSchemename("dnet:publication_resource")

					.build());

			result.addInstance(instance);

		}

		// Adding authors

		final List<Author> authors = createAuthors(rootElement);

		if (authors != null) {

			metadata.addAllAuthor(authors);

		}

		metadata.setResulttype(getQualifier(getDefaultResulttype(cobjValue), "dnet:result_typologies"));

		result.setMetadata(metadata.build());

		entity.setResult(result.build());

		oaf.setEntity(entity.build());

		final List<AtomicAction> actionList = new ArrayList<>();

		actionList.add(factory.createAtomicAction(setName, agent, oaf.getEntity().getId(), "result", "body", oaf.build().toByteArray()));

		return actionList;

	}

	public static List<Author> createAuthors(final JsonObject root) {

		final String authorsJSONFieldName = "authors";

		if (root.has(authorsJSONFieldName) && root.get(authorsJSONFieldName).isJsonArray()) {

			final List<Author> authors = new ArrayList<>();

			final JsonArray jsonAuthors = root.getAsJsonArray(authorsJSONFieldName);

			int firstCounter = 0;

			int defaultCounter = 0;

			int rank = 1;

			int currentRank = 0;

			for (final JsonElement item : jsonAuthors) {

				final JsonObject author = item.getAsJsonObject();

				final Author.Builder result = Author.newBuilder();

				if (item.isJsonObject()) {

					final String surname = getStringValue(author, "surname");

					final String name = getStringValue(author, "name");

					final String oid = getStringValue(author, "oid");

					final String seq = getStringValue(author, "seq");

					if (StringUtils.isNotBlank(seq)) {

						if (seq.equals("first")) {

							firstCounter += 1;

							rank = firstCounter;

						} else if (seq.equals("additional")) {

							rank = currentRank + 1;

						} else {

							defaultCounter += 1;

							rank = defaultCounter;

						}

					}

					if (StringUtils.isNotBlank(oid)) {

						result.addPid(KeyValue.newBuilder()

								.setValue(oid)

								.setKey("ORCID")

								.build());

						result.setFullname(name + " " + surname);

						if (StringUtils.isNotBlank(name)) {

							result.setName(name);

						}

						if (StringUtils.isNotBlank(surname)) {

							result.setSurname(surname);

						}

					} else {

						if (StringUtils.isNotBlank(name)) {

							result.setFullname(name);

						} else {

							if (StringUtils.isNotBlank(surname)) {

								result.setFullname(surname);

							}

						}

					}

				}

				result.setRank(rank);

				authors.add(result.build());

				currentRank = rank;

			}

			return authors;

		}

		return null;

	}

	private static String createRepeatedField(final JsonObject rootElement, final String fieldName) {

		String field = "";

		if (!rootElement.has(fieldName)) { return null; }

		if (rootElement.has(fieldName) && rootElement.get(fieldName).isJsonNull()) { return null; }

		if (rootElement.get(fieldName).isJsonArray()) {

			if (!isValidJsonArray(rootElement, fieldName)) { return null; }

			final StringBuilder ttl = new StringBuilder();

			getArrayValues(rootElement, fieldName).forEach(ttl::append);

			field = ttl.toString();

		} else {

			field = getStringValue(rootElement, fieldName);

		}

		if (field != null && !field.isEmpty() && field.charAt(0) == '"' && field.charAt(field.length() - 1) == '"') {

			field = field.substring(1, field.length() - 1);

		}

		return field;

	}

	private static void settingRelevantDate(final JsonObject rootElement,

			final ResultProtos.Result.Metadata.Builder metadata,

			final String jsonKey,

			final String dictionaryKey,

			final boolean addToDateOfAcceptance) {

		// final JsonObject pubDateJson = rootElement.getAsJsonObject(jsonKey);

		// if (pubDateJson == null) { return; }

		// final String year = getStringValue(pubDateJson, "year");

		// final String month = getStringValue(pubDateJson, "month");

		// final String day = getStringValue(pubDateJson, "day");

		//

		// if (StringUtils.isBlank(year)) { return; }

		// String pubDate = "".concat(year);

		// if (StringUtils.isNotBlank(month)) {

		// pubDate = pubDate.concat("-" + month);

		// if (StringUtils.isNotBlank(day)) {

		// pubDate = pubDate.concat("-" + day);

		// } else {

		// pubDate += "-01";

		// }

		// } else {

		// pubDate += "-01-01";

		// }

		final String pubDate = getPublicationDate(rootElement, "publication_date");

		if (StringUtils.isNotBlank(pubDate)) {

			// if (addToDateOfAcceptance) {

			// metadata.setDateofacceptance(FieldTypeProtos.StringField.newBuilder().setValue(pubDate).build());

			// }

			metadata.addRelevantdate(FieldTypeProtos.StructuredProperty.newBuilder()

					.setValue(pubDate)

					.setQualifier(getQualifier(dictionaryKey, "dnet:dataCite_date"))

					.build());

		}

	}

	private static String getPublicationDate(final JsonObject rootElement,

			final String jsonKey) {

		final JsonObject pubDateJson = rootElement.getAsJsonObject(jsonKey);

		if (pubDateJson == null) { return null; }

		final String year = getStringValue(pubDateJson, "year");

		final String month = getStringValue(pubDateJson, "month");

		final String day = getStringValue(pubDateJson, "day");

		if (StringUtils.isBlank(year)) { return null; }

		String pubDate = "".concat(year);

		if (StringUtils.isNotBlank(month)) {

			pubDate = pubDate.concat("-" + month);

			if (StringUtils.isNotBlank(day)) {

				pubDate = pubDate.concat("-" + day);

			} else {

				pubDate += "-01";

			}

		} else {

			pubDate += "-01-01";

		}

		if (isValidDate(pubDate)) { return pubDate; }

		return null;

	}

	protected static boolean isValid(final JsonObject rootElement, final Reporter context) {

		final String type = getStringValue(rootElement, "type");

		if (!typologiesMapping.containsKey(type)) {

			context.incrementCounter("filtered", "unknowntype_" + type, 1);

			return false;

		}

		if (!isValidJsonArray(rootElement, "titles")) {

			context.incrementCounter("filtered", "invalid_title", 1);

			return false;

		}

		return true;

	}

	private static boolean isValidJsonArray(final JsonObject rootElement, final String fieldName) {

		if (!rootElement.has(fieldName)) { return false; }

		final JsonElement jsonElement = rootElement.get(fieldName);

		if (jsonElement.isJsonNull()) { return false; }

		if (jsonElement.isJsonArray()) {

			final JsonArray jsonArray = jsonElement.getAsJsonArray();

			if (jsonArray.isJsonNull()) { return false; }

			if (jsonArray.get(0).isJsonNull()) { return false; }

		}

		return true;

	}

}