/*-
 * #%L
 * HAPI FHIR - Master Data Management
 * %%
 * Copyright (C) 2014 - 2025 Smile CDR, 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
 *
 *      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.
 * #L%
 */
package ca.uhn.fhir.mdm.rules.config;

import ca.uhn.fhir.mdm.api.IMdmRuleValidator;
import ca.uhn.fhir.mdm.api.IMdmSettings;
import ca.uhn.fhir.mdm.api.MdmModeEnum;
import ca.uhn.fhir.mdm.rules.json.MdmRulesJson;
import ca.uhn.fhir.util.JsonUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.io.IOException;

import static ca.uhn.fhir.mdm.api.MdmModeEnum.MATCH_AND_LINK;

@Component
public class MdmSettings implements IMdmSettings {
        public static final int DEFAULT_CANDIDATE_SEARCH_LIMIT = 10000;
        private final IMdmRuleValidator myMdmRuleValidator;

        private boolean myEnabled;
        private final int myConcurrentConsumers = MDM_DEFAULT_CONCURRENT_CONSUMERS;
        private String myScriptText;
        private String mySurvivorshipRules;
        private MdmRulesJson myMdmRules;
        private boolean myPreventEidUpdates;
        private String myGoldenResourcePartitionName;
        private boolean mySearchAllPartitionForMatch = false;
        private boolean myShouldAutoDeleteGoldenResources = true;
        private MdmModeEnum myMdmMode = MATCH_AND_LINK;

        /**
         * If disabled, the underlying MDM system will operate under the following assumptions:
         * <p>
         * 1. Source resource may have more than 1 EID of the same system simultaneously.
         * 2. During linking, incoming patient EIDs will be merged with existing Golden Resource EIDs.
         */
        private boolean myPreventMultipleEids;

        /**
         * When searching for matching candidates, this is the maximum number of candidates that will be retrieved.  If the
         * number matched is equal to or higher than this, then an exception will be thrown and candidate matching will be aborted
         */
        private int myCandidateSearchLimit = DEFAULT_CANDIDATE_SEARCH_LIMIT;

        @Autowired
        public MdmSettings(IMdmRuleValidator theMdmRuleValidator) {
                myMdmRuleValidator = theMdmRuleValidator;
        }

        @Override
        public boolean isEnabled() {
                return myEnabled;
        }

        public MdmSettings setEnabled(boolean theEnabled) {
                myEnabled = theEnabled;
                return this;
        }

        @Override
        public int getConcurrentConsumers() {
                return myConcurrentConsumers;
        }

        public String getScriptText() {
                return myScriptText;
        }

        public MdmSettings setScriptText(String theScriptText) throws IOException {
                myScriptText = theScriptText;
                setMdmRules(JsonUtil.deserialize(theScriptText, MdmRulesJson.class));
                return this;
        }

        @Override
        public MdmRulesJson getMdmRules() {
                return myMdmRules;
        }

        @Override
        public boolean isPreventEidUpdates() {
                return myPreventEidUpdates;
        }

        public MdmSettings setPreventEidUpdates(boolean thePreventEidUpdates) {
                myPreventEidUpdates = thePreventEidUpdates;
                return this;
        }

        public MdmSettings setMdmRules(MdmRulesJson theMdmRules) {
                myMdmRuleValidator.validate(theMdmRules);
                myMdmRules = theMdmRules;
                return this;
        }

        public boolean isPreventMultipleEids() {
                return myPreventMultipleEids;
        }

        @Override
        public String getRuleVersion() {
                return myMdmRules.getVersion();
        }

        public MdmSettings setPreventMultipleEids(boolean thePreventMultipleEids) {
                myPreventMultipleEids = thePreventMultipleEids;
                return this;
        }

        @Override
        public String getSurvivorshipRules() {
                return mySurvivorshipRules;
        }

        public void setSurvivorshipRules(String theSurvivorshipRules) {
                mySurvivorshipRules = theSurvivorshipRules;
        }

        @Override
        public int getCandidateSearchLimit() {
                return myCandidateSearchLimit;
        }

        public void setCandidateSearchLimit(int theCandidateSearchLimit) {
                myCandidateSearchLimit = theCandidateSearchLimit;
        }

        @Override
        public String getGoldenResourcePartitionName() {
                return myGoldenResourcePartitionName;
        }

        @Override
        public void setGoldenResourcePartitionName(String theGoldenResourcePartitionName) {
                myGoldenResourcePartitionName = theGoldenResourcePartitionName;
        }

        @Override
        public boolean getSearchAllPartitionForMatch() {
                return mySearchAllPartitionForMatch;
        }

        @Override
        public void setSearchAllPartitionForMatch(boolean theSearchAllPartitionForMatch) {
                mySearchAllPartitionForMatch = theSearchAllPartitionForMatch;
        }

        @Override
        public boolean isAutoExpungeGoldenResources() {
                return myShouldAutoDeleteGoldenResources;
        }

        @Override
        public void setAutoExpungeGoldenResources(boolean theShouldAutoExpunge) {
                myShouldAutoDeleteGoldenResources = theShouldAutoExpunge;
        }

        public void setMdmMode(MdmModeEnum theMdmMode) {
                myMdmMode = theMdmMode;
        }

        @Override
        public MdmModeEnum getMode() {
                return myMdmMode;
        }
}