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/*
 * The MIT License
 *
 * Copyright 2018 Intuit Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.intuit.karate.core;

import com.intuit.karate.report.ReportUtils;
import com.intuit.karate.StringUtils;
import java.io.File;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 *
 * @author pthomas3
 */
public class ScenarioResult implements Comparable {

    private final List stepResults = new ArrayList();
    private final Scenario scenario;

    private StepResult failedStep;

    private String executorName;
    private long startTime;
    private long endTime;
    private long durationNanos;

    @Override
    public int compareTo(ScenarioResult sr) {
        if (sr == null) {
            return 1;
        }
        int delta = scenario.getLine() - sr.scenario.getLine();
        if (delta != 0) {
            return delta;
        }
        return scenario.getExampleIndex() - sr.scenario.getExampleIndex();
    }

    public String getFailureMessageForDisplay() {
        if (failedStep == null) {
            return null;
        }        
        Step step = failedStep.getStep();
        String featureName = scenario.getFeature().getResource().getRelativePath();
        return featureName + ":" + step.getLine() + " " + step.getText();
    }

    public StepResult addFakeStepResult(String message, Throwable error) {
        Step step = new Step(scenario, -1);
        step.setLine(scenario.getLine());
        step.setPrefix("*");
        step.setText(message);
        Result result = error == null ? Result.passed(0) : Result.failed(0, error, step);
        StepResult sr = new StepResult(step, result);
        if (error != null) {
            sr.setStepLog(error.getMessage());
        }
        addStepResult(sr);
        return sr;
    }

    public void addStepResults(List value) {
        if (value != null) {
            value.forEach(this::addStepResult);
        }
    }

    public void addStepResult(StepResult stepResult) {
        stepResults.add(stepResult);
        Result result = stepResult.getResult();
        durationNanos += result.getDurationNanos();
        if (result.isFailed()) {
            failedStep = stepResult;
        }
    }

    private static void recurse(List list, StepResult stepResult, int depth) {
        if (stepResult.getCallResults() != null) {
            for (FeatureResult fr : stepResult.getCallResults()) {
                Step call = new Step(stepResult.getStep().getFeature(), -1);
                call.setLine(stepResult.getStep().getLine());
                call.setPrefix(StringUtils.repeat('>', depth));
                call.setText(fr.getCallNameForReport());
                // call.setDocString(fr.getCallArgPretty());                
                StepResult callResult = new StepResult(call, Result.passed(0));
                callResult.setHidden(stepResult.isHidden());
                list.add(callResult.toCucumberJson());
                for (StepResult sr : fr.getAllScenarioStepResultsNotHidden()) {
                    Map map = sr.toCucumberJson();
                    String temp = (String) map.get("keyword");
                    map.put("keyword", StringUtils.repeat('>', depth + 1) + ' ' + temp);
                    list.add(map);
                    recurse(list, sr, depth + 1);
                }
            }
        }
    }

    private List getStepResults(boolean background) {
        List list = new ArrayList(stepResults.size());
        for (StepResult stepResult : stepResults) {
            if (stepResult.isHidden()) {
                continue;
            }
            if (background == stepResult.getStep().isBackground()) {
                list.add(stepResult.toCucumberJson());
                recurse(list, stepResult, 0);
            }
        }
        return list;
    }

    public static ScenarioResult fromKarateJson(File workingDir, Feature feature, Map map) {
        int sectionIndex = (Integer) map.get("sectionIndex");
        int exampleIndex = (Integer) map.get("exampleIndex");
        FeatureSection section = feature.getSection(sectionIndex);
        Scenario scenario = new Scenario(feature, section, exampleIndex);
        if (section.isOutline()) {
            scenario.setTags(section.getScenarioOutline().getTags());
            scenario.setDescription(section.getScenarioOutline().getDescription());
        } else {
            scenario.setTags(section.getScenario().getTags());
            scenario.setDescription(section.getScenario().getDescription());
        }
        scenario.setName((String) map.get("name"));
        scenario.setDescription((String) map.get("description"));
        scenario.setLine((Integer) map.get("line"));
        scenario.setExampleData((Map) map.get("exampleData"));
        ScenarioResult sr = new ScenarioResult(scenario);
        String executorName = (String) map.get("executorName");
        Number startTime = (Number) map.get("startTime");
        Number endTime = (Number) map.get("endTime");
        sr.setExecutorName(executorName);
        if (startTime != null) {
            sr.setStartTime(startTime.longValue());
        }
        if (endTime != null) {
            sr.setEndTime(endTime.longValue());
        }
        List> list = (List) map.get("stepResults");
        if (list != null) {
            List steps = new ArrayList(list.size());
            for (Map stepResultMap : list) {
                StepResult stepResult = StepResult.fromKarateJson(workingDir, scenario, stepResultMap);
                sr.addStepResult(stepResult);
                Step step = stepResult.getStep();
                if (!step.isBackground() && step.getLine() != -1) {
                    steps.add(step);
                }
            }
            scenario.setSteps(steps);
        }
        return sr;
    }

    public Map toKarateJson() {
        Map map = new HashMap();
        // these first few are only for the ease of reports
        // note that they are not involved in the reverse fromKarateJson()
        map.put("durationMillis", getDurationMillis());
        List tags = scenario.getTagsEffective().getTags();
        if (tags != null && !tags.isEmpty()) {
            map.put("tags", tags);
        }
        map.put("failed", isFailed());
        map.put("refId", scenario.getRefId());
        if (isFailed()) {
            map.put("error", getErrorMessage());
        }
        //======================================================================
        map.put("sectionIndex", scenario.getSection().getIndex());
        map.put("exampleIndex", scenario.getExampleIndex());
        Map exampleData = scenario.getExampleData();
        if (exampleData != null) {
            map.put("exampleData", exampleData);
        }
        map.put("name", scenario.getName());
        map.put("description", scenario.getDescription());
        map.put("line", scenario.getLine());
        map.put("executorName", executorName);
        map.put("startTime", startTime);
        map.put("endTime", endTime);
        List> list = new ArrayList(stepResults.size());
        map.put("stepResults", list);
        for (StepResult sr : stepResults) {
            list.add(sr.toKarateJson());
        }
        return map;
    }

    public Map toCucumberJson() {
        Map map = new HashMap();
        map.put("name", scenario.getName());
        map.put("steps", getStepResults(false));
        map.put("line", scenario.getLine());
        map.put("id", StringUtils.toIdString(scenario.getName()));
        map.put("description", scenario.getDescription());
        map.put("type", "scenario");
        map.put("keyword", scenario.isOutlineExample() ? "Scenario Outline" : "Scenario");
        map.put("tags", tagsToCucumberJson(scenario.getTagsEffective().getOriginal()));
        map.put("start_timestamp", Instant.ofEpochMilli(startTime).toString());
        return map;
    }

    public static List tagsToCucumberJson(Collection tags) {
        List list = new ArrayList(tags.size());
        for (Tag tag : tags) {
            Map tagMap = new HashMap(2);
            tagMap.put("line", tag.getLine());
            tagMap.put("name", '@' + tag.getText());
            list.add(tagMap);
        }
        return list;
    }

    public Map backgroundToCucumberJson() {
        if (!scenario.getFeature().isBackgroundPresent()) {
            return null;
        }
        Map map = new HashMap();
        map.put("name", "");
        map.put("steps", getStepResults(true));
        map.put("line", scenario.getFeature().getBackground().getLine());
        map.put("description", "");
        map.put("type", Background.TYPE);
        map.put("keyword", Background.KEYWORD);
        return map;
    }

    public ScenarioResult(Scenario scenario) {
        this.scenario = scenario;
    }

    public Scenario getScenario() {
        return scenario;
    }

    public List getStepResults() {
        return stepResults;
    }

    public List getStepResultsNotHidden() {
        List list = new ArrayList(stepResults.size());
        for (StepResult sr : stepResults) {
            if (sr.isHidden()) {
                continue;
            }
            list.add(sr);
        }
        return list;
    }

    public boolean isFailed() {
        return failedStep != null;
    }

    public StepResult getFailedStep() {
        return failedStep;
    }

    public Throwable getError() {
        return failedStep == null ? null : failedStep.getResult().getError();
    }

    public String getErrorMessage() {
        return failedStep == null ? null : failedStep.getResult().getErrorMessage();
    }

    public long getDurationNanos() {
        return durationNanos;
    }

    public double getDurationMillis() {
        return ReportUtils.nanosToMillis(durationNanos);
    }

    public String getExecutorName() {
        return executorName;
    }

    public void setExecutorName(String executorName) {
        this.executorName = executorName;
    }

    public long getStartTime() {
        return startTime;
    }

    public void setStartTime(long startTime) {
        this.startTime = startTime;
    }

    public long getEndTime() {
        return endTime;
    }

    public void setEndTime(long endTime) {
        this.endTime = endTime;
    }

    @Override
    public String toString() {
        return failedStep == null ? scenario.toString() : failedStep + "";
    }

}