/*
 * Copyright 2018 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jbpm.process.workitem.riot;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.rithms.riot.api.RiotApi;
import net.rithms.riot.api.endpoints.match.dto.Match;
import net.rithms.riot.api.endpoints.match.dto.MatchList;
import net.rithms.riot.api.endpoints.match.dto.MatchReference;
import net.rithms.riot.api.endpoints.summoner.dto.Summoner;
import net.rithms.riot.constant.Platform;
import org.jbpm.process.workitem.core.AbstractLogOrThrowWorkItemHandler;
import org.jbpm.process.workitem.core.util.RequiredParameterValidator;
import org.jbpm.process.workitem.core.util.Wid;
import org.jbpm.process.workitem.core.util.WidMavenDepends;
import org.jbpm.process.workitem.core.util.WidParameter;
import org.jbpm.process.workitem.core.util.WidResult;
import org.jbpm.process.workitem.core.util.service.WidAction;
import org.jbpm.process.workitem.core.util.service.WidService;
import org.kie.api.runtime.process.WorkItem;
import org.kie.api.runtime.process.WorkItemManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.TimeUnit;

@Wid(widfile = "RiotMatchInfo.wid", name = "RiotMatchInfo",
        displayName = "RiotMatchInfo",
        defaultHandler = "mvel: new org.jbpm.process.workitem.riot.MatchesInfoWorkitemHandler()",
        documentation = "${artifactId}/index.html",
        parameters = {
                @WidParameter(name = "SummonerName", required = true),
                @WidParameter(name = "NumOfMatches"),
                @WidParameter(name = "SummonerPlatform")
        },
        results = {
                @WidResult(name = "MatchesInfo")
        },
        mavenDepends = {
                @WidMavenDepends(group = "${groupId}", artifact = "${artifactId}", version = "${version}")
        },
        serviceInfo = @WidService(category = "${name}", description = "${description}",
                keywords = "riot,league,legends,summoner,match,get,info",
                action = @WidAction(title = "Get Match Info")
        ))
public class MatchesInfoWorkitemHandler extends AbstractLogOrThrowWorkItemHandler {

    private String apiKey;
    private RiotAuth riotAuth;
    private RiotApi riotApi;

    private static final Logger logger = LoggerFactory
            .getLogger(MatchesInfoWorkitemHandler.class);
    private static final String RESULTS_VALUE = "MatchesInfo";

    public MatchesInfoWorkitemHandler(String apiKey) {
        this.apiKey = apiKey;
    }

    public void executeWorkItem(WorkItem workItem,
                                WorkItemManager workItemManager) {

        try {

            RequiredParameterValidator.validate(this.getClass(),
                                                workItem);

            String summonerName = (String) workItem.getParameter("SummonerName");
            String numOfMatchesStr = (String) workItem.getParameter("NumOfMatches");

            int numOfMatches = 1;
            if (numOfMatchesStr != null && numOfMatchesStr.trim().length() > 0) {
                numOfMatches = Integer.parseInt(numOfMatchesStr);
            }

            String summonerPlatform = (String) workItem.getParameter("SummonerPlatform");

            Map<String, Object> results = new HashMap<String, Object>();

            Platform platform = RiotUtils.getPlatform(summonerPlatform);

            if (riotAuth == null) {
                riotAuth = new RiotAuth();
            }

            riotApi = riotAuth.getRiotApi(apiKey);
            Summoner summoner = riotApi.getSummonerByName(platform,
                                                          summonerName);

            if (summoner != null) {
                List<Match> matchesList = new ArrayList<>();
                MatchList matchList = riotApi.getMatchListByAccountId(platform,
                                                                      summoner.getAccountId());


                List<MatchReference> matchReferenceList = RiotUtils.geNumberOfPlayedMatches(matchList.getMatches(), numOfMatches);

                for (MatchReference matchReference : matchReferenceList) {

                    matchesList.add(riotApi.getMatch(platform,
                                                     matchReference.getGameId()));
                }

                results.put(RESULTS_VALUE,
                            RiotUtils.getPlayedMatches(matchesList,
                                                       numOfMatches));

                workItemManager.completeWorkItem(workItem.getId(),
                                                 results);
            } else {
                throw new IllegalArgumentException("Could not find summoner with name: " + summonerName + " and platform: " + summonerPlatform);
            }
        } catch (Exception e) {
            handleException(e);
        }
    }

    public void abortWorkItem(WorkItem wi,
                              WorkItemManager wim) {
    }

    // for testing
    public void setRiotAuth(RiotAuth riotAuth) {
        this.riotAuth = riotAuth;
    }
}
